Feasibility of saving energy by using VSD in HVAC system, a case study of large scale hospital in Malaysia

M. M S Dezfouli, S. Moghimi, F. Azizpour, Sohif Mat, Kamaruzzaman Sopian

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)15-25
Number of pages11
JournalWSEAS Transactions on Environment and Development
Volume10
Publication statusPublished - 2014

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energy saving
Malaysia
Energy conservation
bill
Variable speed drives
costs
Costs
HVAC
hospital
speed
evaluation
cost

Keywords

  • Cost
  • Energy saving
  • HVAC system
  • VSD (Variable Speed Drive) motors

ASJC Scopus subject areas

  • Environmental Science(all)
  • Geography, Planning and Development
  • Energy(all)

Cite this

Feasibility of saving energy by using VSD in HVAC system, a case study of large scale hospital in Malaysia. / Dezfouli, M. M S; Moghimi, S.; Azizpour, F.; Mat, Sohif; Sopian, Kamaruzzaman.

In: WSEAS Transactions on Environment and Development, Vol. 10, 2014, p. 15-25.

Research output: Contribution to journalArticle

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