This paper depicts the results of a detailed energy audit, analysis, and implementation of energy efficient operations and maintenance strategies in a large commercial mall in Kuwait. Initially, the cooling towers (CTs) operated only at high speed, and on a typical summer day, nearly one-fourth of the make-up water was used for self-cooling of air. The study based on measured data and analysis, for a period of one year, revealed that the use of variable frequency drive (VFD) could reduce the water wastage for self-cooling of air by as much as 75% and overall water consumption by 18.6% while keeping the cooling system performance at the design level. An optimization model was developed, suitable exclusively for arid climatic conditions. Implementation of various energy efficient operation and maintenance strategies (EEO&MS) with ventilation and air-conditioning (VAC), and lighting systems obtained an overall reduction of 9879 MWh/y, equivalent to a percentage reduction of 11.7% in the annual energy consumption and a 345 kW in peak power demand. The study estimated an economical benefit of 19,958 KD/y for the owners and to the Ministry of Electricity and Water, in addition to a considerable environmental benefit of deduction in CO2 emissions by 6990 t/y.

References

References
1.
Al-Marafie
,
A. M. R.
,
Suri
,
R. K.
, and
Maheshwari
,
G. P.
,
1989
, “
Energy and Power Management in Air-Conditioned Buildings in Kuwait
,”
Energy
,
14
(
9
), pp.
557
562
.
2.
Al-Mulla
,
A.
,
Maheshwari
,
G. P. P.
,
Al-Nakib
,
D.
,
ElSherbini
,
A.
,
Alghimlas
,
F.
,
Al-Taqi
,
H.
, and
Al-Hadban
,
Y.
,
2013
, “
Enhancement of Building Operations: A Successful Approach Towards National Electrical Demand Management
,”
Energy Convers. Manage.
,
76
, pp.
781
793
.
3.
ASHRAE
,
2009
, “
American Society of Heating, Refrigerating and Air-Conditioning Engineers
,” ASHRAE Inc., Atlanta, GA, accessed Aug. 3, 2017, http://www.ashrae.org
4.
ASHRAE
,
1996
, “
HVAC Systems and Equipment
,” American Society of Heating Refrigeration and Air Conditioning Engineers, Atlanta, GA, accessed Aug. 3, 2017, http://www.ashrae.org
5.
Burger
,
R.
,
1995
, Cooling Tower Technology. Maintenance, Upgrading, and Rebuilding, 3rd ed., The Fairmont Press Inc., Lilburn, GA.
6.
IPCC
,
2007
,
Climate Change 2007: The Physical Science Basis
,
Cambridge University Press
,
Cambridge, UK
.
7.
Wong
,
K. V.
,
2016
, “
Planning and Engineering Strategies to Mitigate Effects of Climate Change
,”
ASME J. Energy Resour. Technol.
,
138
(
1
), p.
014701
.
8.
Wolisz
,
H.
,
Punkenburg
,
C.
,
Streblow
,
R.
, and
Müller
,
D.
,
2015
, “
Feasibility and Potential of Thermal Demand Side Management in Residential Buildings Considering Different Developments in the German Energy Market
,”
Energy Convers. Manage.
,
107
, pp.
86
95
.
9.
Ardakani
,
F. J.
, and
Ardehali
,
M. M.
,
2014
, “
Novel Effects of Demand Side Management Data on Accuracy of Electrical Energy Consumption Modeling and Long-Term Forecasting
,”
Energy Convers. Manage.
,
78
, pp.
745
752
.
10.
Zehir
,
M. A.
, and
Bagriyanik
,
M.
,
2012
, “
Demand Side Management by Controlling Refrigerators and Its Effects on Consumers
,”
Energy Convers. Manage.
,
64
, pp.
238
244
.
11.
Mehta
,
N.
,
Sinitsyn
,
N. A.
,
Backhaus
,
S.
, and
Lesieutre
,
B. C.
,
2014
, “
Safe Control of Thermostatically Controlled Loads With Installed Timers for Demand Side Management
,”
Energy Convers. Manage.
,
86
, pp.
784
791
.
12.
Facci
,
A. L.
,
Andreassi
,
L.
,
Martini
,
F.
, and
Ubertini
,
S.
,
2014
, “
Comparing Energy and Cost Optimization in Distributed Energy Systems Management
,”
ASME J. Energy Resour. Technol.
,
136
(
3
), p.
032001
.
13.
Sheen
,
J. N.
,
2005
, “
Economic Profitability Analysis of Demand Side Management Program
,”
Energy Convers. Manage.
,
46
(
18–19
), pp.
2919
2935
.
14.
Qureshi
,
W. A.
,
Nair
,
N.-K. C.
, and
Farid
,
M. M.
,
2011
, “
Impact of Energy Storage in Buildings on Electricity Demand Side Management
,”
Energy Convers. Manage.
,
52
(
5
), pp.
2110
2120
.
15.
Rabadi
,
N. J.
,
Alsaad
,
M. A.
, and
Alzu’bi
,
A.
,
1991
, “
The Potential and Strategies for Demand-Side Management Within the Industrial Sector in Jordan—I
,”
Energy Convers. Manage.
,
32
(
6
), pp.
577
584
.
16.
Rabadi
,
N. J.
,
Al-Nasr
,
M. M.
, and
Hijazi
,
M. A.
,
1991
, “
The Potential and Strategies for Demand-Side Management Within the Industrial Sector in Jordan—II
,”
Energy Convers. Manage.
,
32
(
6
), pp.
585
593
.
17.
Kowalski
,
G. J.
, and
Zenouzi
,
M.
,
2006
, “
Selection of Distributed Power-Generating Systems Based on Electric, Heating, and Cooling Loads
,”
ASME J. Energy Resour. Technol.
,
128
(
3
), pp.
168
178
.
18.
Teitel
,
M.
,
Zhao
,
Y.
,
Barak
,
M.
,
Bar-lev
,
E.
, and
Shmuel
,
D.
,
2004
, “
Effect on Energy Use and Greenhouse Microclimate Through Fan Motor Control by Variable Frequency Drives
,”
Energy Convers. Manage.
,
45
(
2
), pp.
209
223
.
19.
Marques
,
C. A. X.
,
Fontes
,
C. H.
,
Embiruçu
,
M.
, and
Kalid
,
R. A.
,
2009
, “
Efficiency Control in a Commercial Counter Flow Wet Cooling Tower
,”
Energy Convers. Manage.
,
50
(
11
), pp.
2843
2855
.
20.
Miller
,
P.
,
Olateju
,
B.
, and
Kumar
,
A.
,
2012
, “
A Techno-Economic Analysis of Cost Savings for Retrofitting Industrial Aerial Coolers With Variable Frequency Drives
,”
Energy Convers. Manage.
,
54
(
1
), pp.
81
89
.
21.
Christensen
,
T. H.
,
Gram-Hanssen
,
K.
,
de Best-Waldhober
,
M.
, and
Adjei
,
A.
,
2014
, “
Energy Retrofits of Danish Homes: Is the Energy Performance Certificate Useful?
,”
Build. Res. Inf.
,
42
(
4
), pp.
489
500
.
22.
Berker
,
T.
, and
Bharathi
,
K.
,
2012
, “
Energy and Buildings Research: Challenges From the New Production of Knowledge
,”
Build. Res. Inf.
,
40
(
4
), pp.
473
480
.
23.
Summerfield
,
A. J.
,
Lowe
,
R. J.
, and
Oreszczyn
,
T.
,
2010
, “
Two Models for Benchmarking UK Domestic Delivered Energy
,”
Build. Res. Inf.
,
38
(
1
), pp.
12
24
.
24.
Priedeman
,
D. K.
,
Garrabrant
,
M. A.
,
Mathias
,
J. A.
,
Stout
,
R. E.
, and
Christensen
,
R. N.
,
2001
, “
Performance of a Residential-Sized GAX Absorption Chiller
,”
ASME J. Energy Resour. Technol.
,
123
(
3
), pp.
236
241
.
25.
Himpe
,
E.
,
Trappers
,
L.
,
Debacker
,
W.
,
Delghust
,
M.
,
Laverge
,
J.
,
Janssens
,
A.
,
Moens
,
J.
, and
Van Holm
,
M.
,
2013
, “
Life Cycle Energy Analysis of a Zero-Energy House
,”
Build. Res. Inf.
,
41
(
4
), pp.
435
449
.
26.
Hamilton
,
I. G.
,
Summerfield
,
A. J.
,
Lowe
,
R.
,
Ruyssevelt
,
P.
,
Elwell
,
C. A.
, and
Oreszczyn
,
T.
,
2013
, “
Energy Epidemiology: A New Approach to End-Use Energy Demand Research
,”
Build. Res. Inf.
,
41
(
4
), pp.
482
497
.
27.
Oreszczyn
,
T.
, and
Lowe
,
R.
,
2010
, “
Challenges for Energy and Buildings Research: Objectives, Methods and Funding Mechanisms
,”
Build. Res. Inf.
,
38
(
1
), pp.
107
122
.
28.
Littlefair
,
P.
,
Ortiz
,
J.
, and
Das Bhaumik
,
C.
,
2010
, “
A Simulation of Solar Shading Control on UK Office Energy Use
,”
Build. Res. Inf.
,
38
(
6
), pp.
638
646
.
29.
Samanta
,
A.
,
Saha
,
S.
,
Biswas
,
J.
, and
Dutta
,
A.
,
2014
, “
Evaluation of Impact of Shading Devices on Energy Consumption of Buildings in Tropical Regions
,”
ASME J. Energy Resour. Technol.
,
136
(
2
), p.
024503
.
30.
Misenheimer
,
C. T.
, and
Terry
,
S. D.
,
2017
, “
Modeling Hybrid Nuclear Systems With Chilled-Water Storage
,”
ASME J. Energy Resour. Technol.
,
139
(
1
), p.
012002
.
31.
Ingle
,
A.
,
Moezzi
,
M.
,
Lutzenhiser
,
L.
, and
Diamond
,
R.
,
2014
, “
Better Home Energy Audit Modelling: Incorporating Inhabitant Behaviours
,”
Build. Res. Inf.
,
42
(
4
), pp.
409
421
.
32.
Hiete
,
M.
,
Stengel
,
J.
,
Ludwig
,
J.
, and
Schultmann
,
F.
,
2011
, “
Matching Construction and Demolition Waste Supply to Recycling Demand: A Regional Management Chain Model
,”
Build. Res. Inf.
,
39
(
4
), pp.
333
351
.
33.
Teli
,
D.
,
James
,
P. A. B.
, and
Jentsch
,
M. F.
,
2013
, “
Thermal Comfort in Naturally Ventilated Primary School Classrooms
,”
Build. Res. Inf.
,
41
(
3
), pp.
301
316
.
34.
Manfield
,
P.
,
Ashmore
,
J.
, and
Corsellis
,
T.
,
2004
, “
Design of Humanitarian Tents for Use in Cold Climates
,”
Build. Res. Inf.
,
32
(
5
), pp.
368
378
.
35.
Budaiwi
,
I.
, and
Abdou
,
A.
,
2013
, “
HVAC System Operational Strategies for Reduced Energy Consumption in Buildings With Intermittent Occupancy: The Case of Mosques
,”
Energy Convers. Manage.
,
73
, pp.
37
50
.
36.
Lee
,
S.-K.
,
Teng
,
M.-C.
,
Fan
,
K.-S.
,
Yang
,
K.-H.
, and
Horng
,
R. S.
,
2011
, “
Application of an Energy Management System in Combination With FMCS to High Energy Consuming IT Industries of Taiwan
,”
Energy Convers. Manage.
,
52
(
8–9
), pp.
3060
3070
.
37.
Braun
,
P.
, and
Rüther
,
R.
,
2010
, “
The Role of Grid-Connected, Building-Integrated Photovoltaic Generation in Commercial Building Energy and Power Loads in a Warm and Sunny Climate
,”
Energy Convers. Manage.
,
51
(
12
), pp.
2457
2466
.
38.
Hasnain
,
S. M.
,
Alawaji
,
S. H.
,
Al-Ibrahim
,
A. M.
, and
Smiai
,
M. S.
,
2000
, “
Prospects of Cool Thermal Storage Utilization in Saudi Arabia
,”
Energy Convers. Manage.
,
41
(
17
), pp.
1829
1839
.
39.
Lam
,
J. C.
,
Wan
,
K. K. W.
,
Tsang
,
C. L.
, and
Yang
,
L.
,
2008
, “
Building Energy Efficiency in Different Climates
,”
Energy Convers. Manage.
,
49
(
8
), pp.
2354
2366
.
40.
Rezaie
,
B.
,
Dincer
,
I.
, and
Esmailzadeh
,
E.
,
2013
, “
Energy Options for Residential Buildings Assessment
,”
Energy Convers. Manage.
,
65
, pp.
637
646
.
41.
Sait
,
H. H.
,
2013
, “
Auditing and Analysis of Energy Consumption of an Educational Building in Hot and Humid Area
,”
Energy Convers. Manage.
,
66
, pp.
143
152
.
42.
Al-Bassam
,
E.
, and
Alasseri
,
R.
,
2013
, “
Measurable Energy Savings of Installing Variable Frequency Drives for Cooling Towers' Fans, Compared to Dual Speed Motors
,”
Energy Build.
,
67
, pp.
261
266
.
43.
Sontag
,
D. S.
, and
Saylor
,
J. R.
,
2016
, “
An Experimental Study of the Collection of Fog Droplets Using a Mesh Fabric: Possible Application to Cooling Towers
,”
ASME J. Energy Resour. Technol.
,
138
(2), p.
024501
.
44.
Franco
,
A.
, and
Vazquez
,
A.
,
2006
, “
A Thermodynamic Based Approach for the Multicriteria Assessment of Energy Conversion Systems
,”
ASME J. Energy Resour. Technol.
,
128
(
4
), pp.
346
351
.
45.
Ryu
,
C.
,
Tiffany
,
D. R.
,
Crittenden
,
J. F.
,
Lear
,
W. E.
, and
Sherif
,
S. A.
,
2015
, “
Dynamic Modeling of a Novel Cooling, Heat, Power, and Water Microturbine Combined Cycle
,”
ASME J. Energy Resour. Technol.
,
132
(2), p.
021006
.
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