A study of energy efficiency, economic and environmental benefits of a cooling tower

Saidur, Rahman and Abdelaziz, E.A. and Hasanuzzaman, M. and Mamun, M.A.H. (2010) A study of energy efficiency, economic and environmental benefits of a cooling tower. International Journal of Mechanical and Materials Engineering, 5 (1). pp. 87-94. ISSN 18230334

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Abstract

Cooling tower is one of the most important utilities in industrial and residential facilities. This paper estimates the energy efficiency, economic and environmental benefits of cooling tower. Energy-saving measures by using the high efficient motors and variable speed drive (VSD) were applied to save energy. By installing VSD in the cooling tower's fans, annual energy saving have been found to be 202,972 kWh and potential emissions reduction is about 120 ton of CO 2, 661 kg of SO 2, 312 kg of NO xand 661 kg of CO at different cooling load. By using high efficient motor, emissions reduction are about 6.97 ton of CO 2, 38,400 kg of SO 2, 18,109 kg of NO x and 4,601 kg of CO at 50 load. A sizeable amount of utility bill can be saved by using high efficient motors and applying VSDs. Payback periods for different energy savings measures have been estimated and found to be economically viable.

Item Type: Article
Additional Information: Cited By (since 1996): 1 Export Date: 6 December 2012 Source: Scopus Language of Original Document: English Correspondence Address: Saidur, R.; Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia References: http://www.ieej.or.jp/aperc/2006pdf/Outlook2006/WholeReport.pdf, APERC, 2006 Asia Pacific Energy Research Centre, Energy demand and supply Outlook, Accessed: 15th September 2009Gan, P.Y., Li, Z., An econometric study on long-term energy outlook and the implications of renewable energy utilization in Malaysia (2008) Energy Policy, 36, pp. 890-899; Hasanuzzaman, M., Saidur, R., Masjuki, H.H., Investigation of energy consumption and energy savings of refrigerator-freezer during open and closed door condition (2008) Journal of Applied Sciences, 8, pp. 1822-1831; http://www.fas.org/ota/reports/9330.pdf, IEE, 1993 Industrial Energy Efficiency, U.S. Congress, Office of Technology Assessment, Accessed: 1st August 2009Lönnberg, M., Variable speed drives for energy savings in hospitals (2007) World Pumps, 494, pp. 20-24; Mahlia, T.M.I., Emissions from electricity generation in Malaysia (2002) Renewable Energy, 27, pp. 293-300; Mahmoud, A., Shuhaimi, M., Abdel Samed, M., A combined process integration and fuel switching strategy for emissions reduction in chemical process plants (2009) Energy, 34, pp. 190-195; Mecrow, B.C., Jack, A.G., Efficiency trends in electric machines and drives (2008) Energy Policy, 36, pp. 4336-4341; Ozdemir, E., Energy conservation opportunities with a variable speed controller in a boiler house (2004) Applied Thermal Engineering, 24, pp. 981-993; Saidur, R., Energy consumption, energy savings, and emission analysis in Malaysian office buildings (2009) Energy Policy, 37, pp. 4104-4113; Saidur, R., Rahim, N.A., Hasanuzzaman, M., (2010) Renewable and Sustainable Energy Reviews, 14 (4), pp. 1135-1153; Saidur, R., Hasanuzzaman, M., Sattar, M.A., Masjuki, H.H., Irfan Anjum, M., Mohiuddin, A.K.M., An analysis of energy use, energy intensity and emissions at the industrial sector of Malaysia (2007) International Journal of Mechanical and Materials Engineering, 2, pp. 84-92; Saidur, R., Rahim, N.A., Masjuki, H.H., Mekhilef, S., Ping, H.W., Jamaluddin, M.F., End-use energy analysis in the Malaysian industrial sector (2009) Energy, 34, pp. 153-158; Saidur, R., Rahim, N.A., Ping, H.W., Jahirul, M.I., Mekhilef, S., Masjuki, H.H., Energy and emission analysis for industrial motors in Malaysia (2009) Energy Policy, 37, pp. 3650-3658; Tolvanen, J., LCC approach for big motor-driven systems savings (2008) World Pumps, pp. 24-27. , November; Willems, D., Pipkin, W., (2009) Does Your Boiler Need a Retrofit?, , http://www.fmlink.com/ProfResources/Magazines/article.cgi?AFE:afe012308a. html, Accessed: 20th October 2009
Uncontrolled Keywords: Cooling tower, Efficiency, Energy, Environment.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 05 Jul 2013 07:20
Last Modified: 25 Oct 2019 06:06
URI: http://eprints.um.edu.my/id/eprint/6737

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