Achieving Energy Efficiency in Buildings that Utilize Subsidized Electrical Energy

Mar 28 - Energy Engineering

This article explores the potential of improving energy efficiency in buildings that utilize subsidized electrical energy. As an example, in Kuwait the government subsidizes 85 percent of the cost of electricity. In addition, the customer pays a fixed figure cost that is 2 fils/kWh (0.006 $/kWh). This led to an escalation in the demand for electrical energy, until it reached alarming levels in the early eighties. For this reason, a code of practice for energy conservation was developed to set out limits for the electrical requirements of air-conditioning systems for buildings incorporating energy conservation measures. The code stipulates energy conservation measures and limits for different types of buildings. However, the code does not recommend measures to optimize energy consumption. In view of this, the work demonstrated in this article aims to control the wastage in building energy consumption, particularly in office buildings, and improve their energy efficiency. The procedures considered to achieve efficient energy utilization focused on improving building operation strategies, particularly the operation of the air-conditioning and lighting systems.

The methodology involved a walk-through energy audit followed by a standard energy audit. In addition, historical building energy consumption data were collected and analyzed to determine the waste in energy consumption and thus establish opportunities for energy savings. Several energy efficient operation strategies were recommended, out of which few were actually implemented and their actual energy savings verified.

Since the improvement of the building energy efficiency involved modifications of operation strategies for the building systems, estimated savings are achieved at no cost. It was found that the savings are substantial from two different perspectives: the financial and environmental. Although the energy audit was actually conducted in a single office building, the savings were reflected in 800 office buildings to determine the national benefits. The estimated national financial benefits were found to be 22 million KD ($70 million). Moreover, the predicted environmental benefit indicated a reduction in the power plants' emissions by 749 million kg of CO2.

This article concludes that the foreseen benefits of improving buildings' energy efficiency on the national level outweigh those on the individual level. For that reason, it is suggested that the government adopt a national energy efficient building operation campaign.

Keywords: energy monitoring and analysis, performance contracting, energy efficiency

INTRODUCTION

The availability of cheap electrical energy in Kuwait created an ignorant sense among users in all building classifications with regards to their consumption. Whether the buildings are privately owned or owned by the government, the sense of awareness for energy conservation is almost negligible. Consequently, there has been a significant increase in national annual electricity consumption. During the past decade, the per capita annual electricity consumption increased by over 50 percent [3]. Future consumption trends will continue to escalate if energy conservation and efficient energy management polices are not enforced. Energy efficiency of buildings can be achieved through energy auditing by reducing energy consumption. For that reason, the upper management of the Kuwait Institute for Scientific Research (KISR) has wisely decided to audit the institute's main building. Although the building's energy consumption was being monitored by the Facility Management and Service Department (FM&SD), only minimal efforts were taken to cut down the building's energy consumption, and they were mainly concerned with lighting system. For that reason, KISR's upper management requested the Department of Building and Energy Technologies (BET) of KISR to conduct an energy audit for the building to minimize the building energy consumption with minimal cost.

BUILDING CHARACTERISTICS

The Kuwait Institute for Scientific Research owns several buildings scattered throughout the country. The management and the majority of employees are situated in the main building. The building was built in 1986 and can be categorized as an office/ research building. The building envelope is considered energy efficient, as it incorporates insulation materials in the walls and roof sections as well as a double-glazing system. The building utilizes electrical energy for the provision of the building energy requirements. The major electricity end users of the building are the air-conditioning system (A/C), the lighting system, and the office and lab equipment. For the past few years, the building energy consumption was almost constant. The annual electricity bill for KISR's main building is approximately KD 25,000 ($80,645). Working out the consumption from the rate, that is 2fils/kWhr ($0.006/kWhr), the bill indicates an annual energy consumption of 12,500 MWh.

The building comprises private offices, partitioned offices, a library, an auditorium, a cafeteria, meeting rooms, and labs. The building has 23470 m^sup 2^ of living space area. A huge area of the building is dedicated to experimental labs. Almost 54 percent of the air-conditioned area is dedicated to the labs, excluding the basement area. The building is a two-story building with a basement that includes emergency shelters, runnels, and enclosure of electrical cabling and connections. The architectural plans of the building are shown in Figures 1 and 2. The building incorporates a building automation system (BAS) that is utilized as an alarm- monitoring station [7]. Furthermore, it is used to monitor the airconditioning system operation, mainly the inlet and outlet temperatures of the chillers and air-handling units (AHUs). The BAS is also used to monitor alarm status of the fire distinguishing system.

To meet the building air-conditioning (A/C) requirements, the A/ C system comprised 10 air-cooled chillers, each of 373 kW rated capacity. Two are standby. The A/C system included 4 chilled water pumps to circulate the chilled water, one of which is a standby. The chilled water pumps require 75 kW each. The building is regularly utilizing three chilled water pumps all year round, as well as a minimum of one chiller during the winter season to a maximum of six chillers at the peak of the summer season [8].

The building lighting system mainly consists of fluorescent lamps. Other types of lamps were utilized, including incandescent, parlamps, and spotlights. In addition, special task lights were utilized, such as the emergency lights [1].

METHODOLOGY

As a first step in energy auditing, a walk-through was conducted to determine easily spotted misuse of energy by the end user, mainly A/C and lighting systems. A detailed survey was conducted later to investigate the possible operation and maintenance strategies (O&MS) by inspecting the A/C and lighting systems equipment and their operation strategies. Moreover, monthly power consumption data were collected from the FM&SD, who regularly keep a manually logged record of monthly consumption. The historical data since 1998 were used in the analysis of the base load-that is, the minimum constant amount of energy consumed in a building throughout the year.

Figure 1. Main building architectural plan-ground floor

Figure 2. Main building architectural plan-first floor

The monthly consumption data collected by the FM&SD were from meter readings. The readings were not taken exactly on the same day of each month. This made the meter readings inconsistent. Thus, in order to compare the consumption of different years, the meter values were corrected to include the same number of days for a specific month. To correct for the meter reading inconsistency, daily average power consumption data were calculated. The monthly consumption was determined by exploiting the calculated daily average power consumption.

Weather parameters including the dry bulb temperature and relative humidity were also gathered. The data were averaged monthly to represent the weather characteristics for the same period of the meter readings. This was done to correlate seasonal energy consumption with the weather conditions.

BUILDING BASE LOAD

To estimate the building base load, the monthly power consumption of the two previous years (1998-1999) was plotted against the monthly averaged outside temperature as shown in Figure 3. The historical data provided an indication regarding the major building energy consumers. As it has been explained before, the base load is the minimum load consumed throughout the year. A horizontal line that coincides with the minimum consumption in Figure 3 represents it. The base load analysis is very important for building management. Its importance resides in the fact that, once it is determined, it will provide the building operation manager with a mean to check for any abnormalities in energy consumption.

Since the building is an office building, the major power consumers are the A/C system, the lighting system, and lab/off ice equipment. During the winter season, one chiller is in operation as well as three chilled water pumps and the air handling units fans and motors. Thus the lighting system and office/lab equipment are utilizing the rest of the consumed power. The base consu\mption of the building is 800 MWh per month. This amount is being consumed regularly throughout the year. The base load of 800 MWh actually represents not only the lighting system and office/lab equipment consumption, but also the energy requirements for minimum air- conditioning required throughout the year.

Further analysis of the base load revealed more findings with regards to building energy consumption as shown in Figure 3. The area on the right side of the curve (i.e. the triangular area) represents the energy consumed by the air conditioning system in the summer season that is weather dependent [6]. Correlation between the outside weather temperature and the monthly power consumption required for the building air-conditioning was established.

Figure 3. Main building base load

It is clearly shown that the maximum monthly consumed energy in the summer months reached a value of 1600 MWh in July 1999. This consumption is double the base load. Out of this maximum consumption, the A/C system consumed 1155 MWh; this represents 72 percent of peak month total consumption.

Another important finding was the balance temperature (T^sub b^). The balance temperature is defined as the minimum outdoor temperature at which cooling of the building is usually required. For KISR's main building, it was found that the cooling would start whenever the outside temperature exceeds 15C. Since the building is using minimum cooling year around with one chiller in operation, whenever the outside temperature exceeded 15C, the building utilized at least two chillers.

BUILDING ENERGY USE PROFILE

Since at least some energy consumption data are available for most existing buildings, a great deal of information can be obtained from an analysis of whatever data exist. The quantity and type of data available depend upon the type of metering that is installed in the building [6]. In KISR's main building, four substations were installed to provide the electrical requirements. The Ministry of Electricity and Water (MEW) has installed twelve energy consumption meters in the main building. The meters continuously display the building's power consumption. The readings of the meters are collected manually every week and manually logged by FM&SD personnel to estimate the weekly and monthly power consumption. Some difficulties were encountered when hourly consumption data were required for energy auditing analysis. The difficulties were mainly associated with the allocation of service personnel for data collection. This led to limiting the analysis to whatever data were available, namely weekly and monthly consumption.

The building power consumption for two consecutive years from 1998 to 1999, as well as that of 2000 and 2001, is plotted in Figure 4. The project duration was one full fiscal year, from March 2000 till February 2001. The consumption is recorded from the meters at different days of the month. This made the monthly data collected by FM&SD inconsistent. For that reason, the consumption data were corrected as it was rected as it was explained in the methodology section. The corrected data for 1998 to 2001 that are shown in Figure 4 describe the consumption pattern for those four years.

The minimum consumption was just over 800 MWh for 1998 and 1999. The consumption of 1999 in general was more than that of 1998. This is linked to the higher outside temperature (refer to Figure 5). Although the outside temperature in September 1998 was one degree higher than that of 1999, there is a large increase in the power consumption of 1998 as compared to that of 1999. This is attributed to a poor building operation strategy. The total energy consumed for the building was 12.587 and 13.563 MWh/yr for 1998 and 1999 in respectively. 1999 was selected as the base year for the energy audit analysis; thus, energy savings will be worked accordingly.

In order to compare building energy consumption with similar buildings that are considered energy efficient, the building energy density was estimated. The building electrical energy density, which is the annual consumed electricity per air-conditioned space area, was found to be 578 kWh/m^sup 2^. This value was found to be very high when compared to the good practice benchmark density of 234 kWh/ m^sup 2^ for prestigious air-conditioned office buildings specified by the Chartered Institution of Buildings Services Engineers (CIBSE) [7]. From the base load analysis and the energy use, it was decided to reduce the base load and the energy density as much as possible. The energy density provided by the CIBSE was not targeted; it was used to provide a guideline in achieving energy efficiency.

MODIFICATIONS OF BUILDING OPERATION STRATEGIES

The base load analysis and the historical annual energy consumption profiles indicated that building electricity consumption was enormous, and that inefficient operation strategies were utilized particularly for the air-conditioning system. Opportunities of efficient building operation were investigated. After that, several operation strategies were recommended, out of which some were adapted and implemented by the facility operators. The recommended operation strategies are listed in Tables 1 and 2. The details of the recommended operation strategies of the lighting and air-conditioning systems are discussed separately in the following sections.

Figure 4. Corrected KISR's main building power consumption for 1998-2001

Figure 5. Outside temperature profile 1998-2000

Table 1. Recommended operation strategies for the lighting system

Lighting System

The building architectural design permits the utilization of daylight through skylights and large areas of efficient glazing. In spite of that, the light system is utilized primarily to provide the required luminosity. The main reason behind this misuse of the lighting system is the design of the lighting control switches. Each switch controls multi-fixtures in different task areas. For example, in the library, the reading desks area, which is located near the windows, has the lights on all the time as the switch for this area controls the lights of the reception area, which is located farther away from the glazed surface. Similar situations occurred at other areas within the building. In view of this, a delamping strategy was investigated, and implemented in several areas of the building. The luminosity level was measured after implementing this strategy and it was found that it matches the recommended levels by Ministry of Electricity and Water (MEW) [1].

Another strategy was recommended which involved modifications to lighting utilization periods. After conducting night-time light luminosity measurements, it was found that the luminosity exceeded the recommended values. For example, the MEW standard recommends a value of 5 lux for corridors during the night, while the measured was 62 lux. In view of this, it was recommended to switch on only 20 percent of the lights in the main entrance area to maintain the recommended lux level and achieve energy savings.

Table 2. Recommended operation strategies for the air- conditioning system

During the walk-through audit, it was noticed that some employees were using side lamps to provide an adequate light level in their offices. They opted to switch off the fixed florescent lights and use the incandescent side lamps. Moreover, some employees that have access to daylight did not utilize it; instead, artificial lighting was used. All these inefficient practices were adopted to avoid the light reflection and glare on the computer monitor that was due to improper placement of office furniture. For that reason, a survey was prepared and distributed to the employees. The survey aimed at determining the utilization habits of building employees and their requirements. The results of the survey indicated that out of 263 employees in the building, 113 have access to natural daylight in their offices. Out of these 113 employees, only 8 utilize natural light. In addition, 94 employees have side lamps in their offices. The estimated annual consumption of the side lamps, assuming an average lamp rating of 60W used 5 days a week for 7.5 hours per day, will be 11 MWh/year (refer to Table 1). To change the employees' habits with regards to utilization of lighting system, a third strategy was recommended. This strategy suggested rearranging the office furniture in accordance with the light angle to prevent glare on computer monitors. This would motivate the employees to utilize daylight and prevent them from using side lamps, further reducing consumption.

Air-conditioning System

The building air-conditioning system was operating almost under a fixed strategy. Six chillers are utilized during the peak summer (i.e. July through August), and a minimum of one chiller is always in operation during wintertime, which is from November through January. Throughout the year, all three chilled water pumps are in operation. The indoor temperature of the building is usually maintained at 18-22C. The occupants mostly complain about the over- cooled working environment. A detailed study for the chilled water distribution system and the air-conditioning system revealed that the air-conditioning system is oversized [8]. Moreover, it was found that the chilled water could be circulated with one pump only. This oversizing was intentional as it was assumed that there would be future expansion of the building, which did not take place. Moreover, the operation of the A/C system provided a huge opportunity for energy consumption savings. The two chilled water pumps were not needed for the year-round operation. For that reason it was logical to recommend switching them off all year round. This strategy contributed greatly to the savings, as is shown in the next section.

The daily operation of the A/C system was found to be fixed within the season. The A/C system was running continuously right throu\gh occupancy and non-occupancy periods, even during weekends and holidays. In view of this, different operation schedules are recommended for the A/C system's components. The supply air (SA) fans and return air (RA) fans that were continuously running are going to have certain operation schedules that are weather and occupancy dependent, as shown in Table 2. In addition, the corridors are usually very cold; their temperature was maintained at 18-19C during the occupancy period. These dropped down to 11-12C at night. To overcome this uncomfortable situation, the closure of the corridors' supply air fans was recommended during the non-occupancy period throughout the year.

The operation strategies for the A/C system included an assertive operation strategy that is recommended for winter season. In this strategy, the closure of the chiller and the chilled water pump throughout the season, as well as the closure of SA and RA fans for all AHUs during non-occupancy period, is recommended. Basically, only free cooling is utilized during the winter season by supplying 100 percent fresh air to the building during working hours.

Equipment

Since the main facility building is categorized as an office/ research building, the equipment is either office equipment such as computers, printers, fax machines, and copiers, or lab equipment that are usually used for specific experimental work and testing procedures. Other than those are the equipment or appliances that are required for other building requirements, such as those used in the cafeteria and the auditorium. The annual consumption in the lab area represents about 90 percent of the total equipment annual consumption.

The importance of the equipment energy consumption lies in its continuous use throughout the working hours and sometimes throughout the day, especially in poorly managed buildings. This equipment utilization pattern amplifies the energy consumption. Unlike the energy consumption that is weather dependent, the equipment's energy consumption is user dependent. This makes the utilization pattern governed by factors that are difficult to control. Another important fact that emphasizes the importance of the equipment energy consumption is that it's considered a major part of the building base load.

The office equipment is standard. It consists of computers, monitors, laser printers, and scanners. The manager's offices include fax machines, photocopiers, and electric typewriters. There are 38 laboratories in the main building, which support KISR's applied research programs. The total area located by the laboratories is approximately 3,973 m^sup 2^, which is 17.0 percent of the air-conditioned area.

The equipment electrical consumption was either measured when possible, or determined by utilizing the nameplate rating. As for the operation schedules, they were estimated based on interviewing the staff member in charge of the specific equipment in question. The estimated monthly energy consumption for laboratory equipment was found to be 215,781 kWh. Thus, the total yearly energy consumption of KISR's main laboratories' equipment was estimated at 2,589.4 MWh [2]. The laboratories' equipment electrical density was found to be 652 kWh/m^sup 2^.

ESTIMATED SAVINGS

The aim of the energy audit is to reduce the energy consumption. For that purpose, the recommended operation strategies, energy savings were determined. The savings are listed in Tables 1 and 2. The savings achieved by implementing the recommended strategies for the lighting system would be 147.7MWh/year, out of which 81.7 MWh/ year was estimated for delamping only. It is recommended that when a fluorescent lamp is removed, the ballast should be removed as well and used for maintenance when required.

Table 3. Recommended operation strategies for selected equipment

Additional savings are estimated when energy efficient operation schedules are utilized while adhering to the recommended luminosity levels during nighttime. This strategy would save up to 55 MWh/ year.

Since energy auditing also aims at increasing the building energy efficiency, recommended procedures should not affect the occupant's comfort. Actually, increasing the comfort level, whether thermal or visual, is considered one of the targets for energy auditing. In view of this, the third recommended strategy aimed first at lowering the electrical consumption by diverting the occupants from using side lamps and encouraging them to use natural daylight. Rearranging the office furniture was suggested to eliminate the glare on computer screens. Furthermore, this strategy would improve the working environment, thus achieving an additional benefit-increased productivity.

In view of the A/C system, the savings that can be realized from adapting the recommended operation strategies for the A/C are substantial. The over-design of the A/C system and the energy ignorant operation of the system by the building operators created a vast opportunity for energy savings. The total estimated savings that can be achieved by improving the operation of the A/C system are 2753MWh/y-this represents 20 percent of the annual consumed energy of the building base year.

The major savings were achieved by switching off the chilled water pumps. The savings achieved by the closure of the two pumps represented 60 percent of the total savings achieved by modifying operation strategies for the A/C system.

The modifications of the winter operation of the A/C system estimated savings are over 26 percent of the total saved by implementing the A/C system O&MS. In addition, the estimated savings that can be achieved by adapting energy conscious operation strategies during non-occupancy period are 12 percent.

The achieved savings estimated for the implementation of the O&MS for the lighting system represent 1.1 percent of the total building energy consumption. These savings, when compared to those of the A/ C system, are considered trivial. But any savings that can be achieved, especially when they're free, will be beneficial from the environmental perspective if not from a monetary one.

As for the equipment, the audit team was faced with the resistance of laboratory equipment operators. They did not want to change any operational habits and they believed that their operation was energy conscious. Since the focus of this audit project was to reduce energy consumption with minimum disturbances, the operation of laboratory equipment was not looked into. Only the operation of office equipment, kitchen exhaust fans, and vending machines was investigated. Few operation strategies were recommended, including turning off office equipment when it was not in use, as well as the kitchen exhaust fans and the vending machines. The recommended equipment operation strategies are listed in Table 3.

The scanners were selected, as it was found that they were left in operation even when not in use. Thus the closure of the scanners was recommended. This would save up to 6.0 MWh/yr for an average rating of 40W per scanner for a total of 19 scanners.

Another strategy that was recommended is the closure of the exhaust fans in the main kitchen during non-working hours. This strategy recommends switching off the exhaust fans in the main kitchen during non-working hours; usually these fans are running 24 hours. It is advised to turn them off for 15 hours during working days and 24 hours on Thursdays and Fridays. Thus, this strategy is recommended for a total of 6396 hours.

The closure of the vending machine located in the cafeteria is also suggested, when not in use-that is, during weekends and after working hours on Wednesday (i.e. from 3:00 p.m. to 12 a.m.). Only the vending machine in the cafeteria is targeted in this strategy, as employees working during non-working hours might use the others scattered in the building. When adapting these strategies, the estimated annual savings will be 12.1 MWh and 5 MWh for the closures of exhaust fans and the vending machine respectively.

The overall savings achieved by controlling the use of selected equipment were estimated to be 23.1 MWh/yr, an additional 0.17 percent savings of the annual consumption of the base year. These savings may be considered trivial, but the audit team believes that there are more opportunities with regards to reducing consumption of office and lab equipment that can be targeted separately in future studies. In addition, the savings achieved did not require any initial investment other than the time required for one professional to conduct the audit. The overall savings of the O&MS of the equipment will be 46KD/y ($149), and the salary of the professional is 32KD/d ($103/d). Thus the cost of achieving such strategies are covered within the first year, assuming that the professional will spend one day to recommend such strategies.

The overall savings that can be achieved if all recommended O&MS were implemented will be 2923.8MWh/yr, which is equivalent to annual savings of 5848 KD ($18,863). The savings, when compared to the annual energy consumption of the base year, were found to be equivalent to 21 percent, although it was proposed to achieve 15 percent.

From another perspective, the building base load was reduced from 800 MWh/month to 300 MWh/month in fiscal year 2000-2001. Thus building operators shall maintain a conservative figure of 450MWh/ month as the recommended building base load for the time being. Thus, a 44 percent reduction in the base load can be easily achieved.

In view of the building energy density, a 26 percent savings can be achieved as the energy density was reduced from 578 kWh/m^sup 2^ to 425 kWh/m^sup 2^.

VERIFICATION OF ESTIMATED SAVINGS

The savings that were estimated in the previous section were based on hand calculations utilizing the available data, including nameplate power rating, load factor for the chillers, and their coefficient of performance, in addition to the measured a\mpere of the chilled water pumps and the air handling return and supply fans [10]. As for the lighting system, the data utilized were mainly from electrical drawings and walkthrough inspection. The total estimated savings, as it has been shown in the previous section, are 2923.8MWh/ yr, which is equivalent to 5848 KD ($18,863). The estimated savings, when compared to billing data, were 5875 KD ($18,950) for fiscal year 2000-2001, equivalent to 2937 MWh/yr annual corrected meter reading. Thus the savings were underestimated by 0.46 percent. Although not all recommended O&MS were actually implemented for the whole suggested period, among those that were not actually implemented are the closure of the scanners (6MWh/yr) and reorganization of office furniture (11 MWh/yr). Thus, additional energy savings were utilized from reducing building energy consumption by either occupants' practices or building operation management.

ENERGY AUDITING NATIONAL BENEFITS

Though the energy audit discussed in this article was actually conducted on one office building, the savings were reflected in 800 [4] similar buildings to estimate the national benefits if similar practices were adapted throughout the country.

The savings were estimated based on the total cost of electricity, which is 0.015KD/kWh (0.05$/kWh), not the subsidized cost of 0.002KD/kWh (0.006$/kWh). In addition, two conservative assumptions were made. The first is that the building's annual energy consumption is 12000MWh/yr, and the second is that the estimated savings that can be achieved are 15 percent achieved by modifications of their O&MS. The predicted annual savings for 800 buildings are 22 million KD ($71 million).

From another perspective, the foreseen electricity savings will reduce the power plant emissions by 749 million kg of CO2. The CO2 emissions are estimated using a conversion factor of 0.52 kg CO^sub 2^/kWh for electricity production at 1997 figure [5].

CONCLUSIONS

Considerable savings can be achieved by simply modifying the operation strategies of the building systems. At least 15 percent savings can be promised when adapting energy conscious operation strategies. In Kuwait, in spite of the fact that buildings are designed efficiently with respect to the building envelope, the building operation is habitually energy ignorant. This behavior is generally associated with the enforcement of energy conservation code by MEW [9] that controls the peak load requirements but not the consumption of the buildings. Another factor that is seriously contributing to the overuse of electricity is the government subsidy of electricity prices. The government covers over 85 percent of the total price.

The energy audit procedure followed in this study focused only on the operation of the building. Thus achieved savings are costless. The total savings achieved represented 21 percent of the total annually consumed energy. In view of the base load, implementation of the recommended O&MS will drop it by 44 percent. The modified building operation will not only reduce the energy consumption, but it will also enhance the indoor environment; thus, employee productivity is expected to improve.

This article anticipated the national benefits that can be realized when all office buildings' operation strategies are modified and turned into energy conscious O&MS. The realized monetary savings would be 22 million KD ($71 million). Moreover, emissions by the power plants will be reduced by 749 million kg of CO2. The anticipated benefits of energy auditing on the national level outweighs those on the individual level. In view of that, it is recommended that the government adopt an energy efficient building operation campaign, especially for the governmental buildings.

Acknowledgment

The successful achievements of this project would not have been possible without the sincere efforts of the following project team members: Gopal Maheshawri, Dina Al-Nakib, Fareed Al-Ghimlas, Raba'a Al-Murad, Anas Mirza, Hussain Joma'a, Abdullah Al-Farhan, and Rajeeve Al-Assiri. Their devoted hard work and determination were essential to the success of the project. Working with them was a great experience for myself as a project leader and a great inspiration to other staff members.

References

[1] Al-Nakib, D. and Al-Ragom, R, Energy Auditing of the Lighting system at KISR's Main Facility Building. Kuwait Institute for Scientific Research. Report No. 6105. Kuwait. 2001.

[2] Al-Ragom F., G. P. Maheshwari, D. Al-Nakib, F. Al-Ghimlas, R. Al-Murad and A. Meerza, 2002. Energy Auditing of KISR's Main Building. Final report. Kuwait Institute for Scientific Research. Report No 6287.

[3] Al-Ragom, F. and G. P. Maheshwari, 2000. Energy Auditing of KISR's Main Building. Proposal. Kuwait Institute for Scientific Research. Report No 5782. 2000.

[4] Almudhaf, H. and F. Al-Ragom, 1999. Development of simplified fast facts demonstrating the impact of energy conservation in Kuwaiti buildings. Kuwait Institute for Scientific Research. Report No. 5575. Kuwait. 1999.

[5] Energy Efficiency in Buildings, 1998. Chartered Institution of Building Services Engineers (CIBSE) guide. London, UK.

[6] Krarti, M., 2000. Energy Audit of Building Systems: An Engineering Approach. CRC Press LCC, New York, USA.

[7] Mirza, A. and R Al-Ragom, 2001. Building Automation System of KISR's Main Facility Building. Kuwait Institute for Scientific Research. Report No. 6168. Kuwait.

[8] Maheshwari, G. P., H. Hussain, and R. Rajeeve, 2001. Development and Implementation of Energy Efficient Operation Schemes for air-conditioning system. Kuwait Institute for Scientific Research. Report No. 6213. Kuwait.

[9] Ministry of Electricity and Water (MEW), 1983. Code of Practice for Energy Conservation in Kuwaiti Buildings. Report No. MEW R-6, Kuwait.

[10] Pawlik Klaus-Dieter E., Lynne C. Capehart, and Barney L. Capehart, 2001. Strategic Planning for Energy and the Environment Vol. 21, No. 2.

Fatouh A. Al-Ragom, CEM

Building and Energy Technologies Department

Kuwait Institute for Scientific Research-Kuwait

ABOUT THE AUTHOR

Fatouh A. Al-Ragom, CEM, holds a M.Sc. degree in mechanical engineering (thermo-fluids) from Northeastern University, Boston, MA, 1995. She is involved in a number of projects related to the field of energy conservation in buildings and energy auditing. Specialization areas cover the following:

* Energy auditing

* Energy conservation in buildings

* Refrigeration and air-conditioning

* Heat exchangers design

* Utilization of heat recovery systems

* Passive cooling systems

* Alternative refrigerants

Working in the Kuwait Institute for Scientific Research (KISR) since 1990, she now holds a research associate position at the Building and Energy Technologies Department. A member of the Association of Energy Engineers since 2000. KISR's representative at the Kuwaiti National Ozone committee since 1998.

Holding Certified Energy Manager (CEM) certification, obtained from the Association of Energy Engineers (AEE)-USA in December 2001.

Email: fragom@safat.kisr.edu.kw

P.O. Box 24885 Safat 13109 Kuwait-EUD/BET-KISR

Tel: (965) 4836100

Fax: (965) 3845763

Copyright Fairmont Press, Incorporated 2004