WSEAS Transactions on Environment and Development
Print ISSN: 1790-5079, E-ISSN: 2224-3496
Volume 10, 2014
Feasibility of Saving Energy by Using VSD in HVAC System, A Case Study of Large Scale Hospital in Malaysia
Authors: , , , ,
Abstract: This study presents evaluation of energy saving, bill saving, payback period, and avoided emission by using Variable Speed Drive to standard motors in FCUs and AHUs of HVAC system in one of large scale medical centres (UKMMC) in Malaysia. It was found that the energy saving has direct relationship with percentage of speed reduction in drive as by 60% and 10% speed reduction can reach to maximum and minimum amount of energy saving respectively. The best size and amount of payback period, and energy saving, saving cost and emission reduction was found for 60% speed reduction. It has been evaluated that the total energy savings of 4963 KW/h, 917KW/h can be achieved in one year by using VSD with 60% speed reduction for AHUs and FCUs respectively. Also, it has been estimated that amounts of bill saving cost for AHUs and FCUs are US$496,323 and US$ 91,721. The payback periods for AHUs and FCU were 0.5 and 2.6 years.
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Pages: 15-25
WSEAS Transactions on Environment and Development, ISSN / E-ISSN: 1790-5079 / 2224-3496, Volume 10, 2014, Art. #2