Indoor Environmental Quality in Air-conditioned Mosque Buildings in Kuwait

Farraj F. Al-ajmi¹, Ali. S. Al-azmi¹ and Fawaz A. Alrashidi^1,

¹Department of Civil Engineering, College of Technological Studies, Shuwaikh, Kuwait

Cite this paper:
Farraj F. Al-ajmi, Ali. S. Al-azmi and Fawaz A. Alrashidi. Indoor Environmental Quality in Air-conditioned Mosque Buildings in Kuwait. American Journal of Civil Engineering and Architecture. 2017; 5(4):167-173. doi: 10.12691/ajcea-5-4-5

Abstract

In this study, the indoor environmental quality (IEQ) of air-conditioned mosque buildings in an extremely dry desert climate is examined from the perspective of the occupants via two aspects: thermal comfort and indoor air quality. The study presents statistical data about the worshiper thermal comfort together with data describing the indoor air quality in Kuwaiti mosque buildings. With respect to the latter, the overall IEQ acceptance using two measurements, namely, physical measurements and subjective information collected via questionnaires, was used to evaluate 140 worshipers visiting six air-conditioned mosque buildings in the state of Kuwait. The operative temperature based on actual mean vote (AMV) and predicted mean vote (PMV) was identified using a linear regression analysis of the responses on the ASHRAE seven-point thermal sensation scale and was found to be 26.1°C in the summer season .The indoor air quality (IAQ) with respect to the carbon dioxide concentration levels was compared with the acceptable limits of international standards, i.e., the ASHRAE Standard 62.1 [1]. The proposed overall IEQ acceptance findings in the mosque buildings show CO₂ concentrations between 730 and 1220 ppm. However, this is considered a slightly higher than the ideal CO₂ concentrations, which may require increasing ventilation rates by opening windows and, doors or by mechanical ventilation.

Keywords:
mosque buildings Kuwait mosques indoor environments prayer thermal comfort dry desert climates

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References:

[1]	Kuwait International Airport. Meteorological summaries year 1962-2014, State of Kuwait: Meteorological Department Climatological Division 2014.
[2]	Al-ajmi F., Hanby V.I. Simulation of energy consumption for Kuwaiti domestic buildings. Energy and Buildings 2008, 40: 1101-1109.
[3]	Al-Ajmi F. Loveday D.L. Havenith G. Thermal insulation of Arabian Gulf male clothing: “measurements using a thermal manikin”. ASHRAE Transactions 2006, pp. 112 (2).
[4]	Fanger P.O. Thermal comfort: analysis and applications in environmental engineering. Copenhagen: Danish Technical Press, 1972.
[5]	ANSI/ASHRAE, Standard 55. Thermal environmental conditions for human occupancy. American Society of Heating, Refrigerating and Air-conditioning Engineers, Inc.2009, Atlanta, Georgia.
[6]	ISO 7730. Moderate thermal environments. Determination of the PMVand PPD indices and specification of the conditions for thermal comfort. 2nd ed. Gevena, Switzerland: International Organisation for Standardisation 2005.
[7]	Saeed RAS. Thermal comfort requirements in hot dry region with special reference to Riyadh: part 1: for Friday prayers. International Journal of Ambient Energy 1996; 17(1): 17e21.
[8]	ISO 9920. Ergonomics of the thermal environment-Estimation of the thermal insulation and evaporative resistance of clothing. International Standard Organization for Standardization (ISO) 2006.
[9]	Al-ajmi F. Loveday D.L. Bedwell K.H. Havenith G. “Thermal insulation and clothing area factors of typical Arabian Gulf clothing ensembles for males and females: measurements using thermal manikins”.Applied Ergonomics 2008, 39(3), pp. 407-14.
[10]	Sekhar C. Ching C.S. Indoor air quality and thermal comfort studies of an under-floor air-conditioning system in the tropics. Energy and Buildings, 2002; 34: (5), pp. 431-44.
[11]	Cena K. deDear R.J. Thermal comfort and behavioural strategies in office buildings located in a hot-arid climate. Journal of Thermal Biology 2001, 26(4-5), pp. 409-14.
[12]	de Dear R.J. Brager GS. Developing an adaptive model of thermal comfort and preference. ASHRAE Transactions, 1998, 104(1), pp. 145-67.
[13]	Farraj F. Al-ajmi., Thermal comfort in air-conditioned mosques in the dry desert climate, Building and environemnt 45 (2010). pp. 2407-2413.
[14]	ANSI/ASHRAE Standard 62.1.Ventilation for Acceptable Indoor Air Quality. American Society of Heating, Refrigerating and Air-conditioning Engineers, Inc.2007, Atlanta, Georgia.
[15]	Clerk Maxwell J. A Treatise on Electricity and Magnetism. 3rd ed. vol. 2. Oxford: Clarendon 1892, pp. 68-73.
[16]	Schiller G.E. A comparison of measured and predicted comfort in office buildings. ASHRAE Transactions 1990, 96(1), pp. 609-22.
[17]	Benton C. Bauman F. and Fountain M. A field measurement system for the study of thermal comfort. ASHRAE Transactions, 1990, 96(1), pp. 623-33.
[18]	deDear R.J. Fountain ME. Field experiments on occupant comfort and office thermal environments in a hot-humid climate. ASHRAE Transactions 1994, 100(2), pp. 457-75.
[19]	Mallick F.H. Thermal comfort and building design in the tropical climates. Energy and Buildings 1996, 23(3), pp. 161-7.
[20]	Howell W.C. Kennedy P.A. Field validation of the Fanger thermal comfort model. Human Factors 1979, 21(2), pp. 229-39.
[21]	J.F. Busch, “Thermal responses to the THAI office environment,” ASHRAE Transactions 1990, 96(1), pp. 859-72.
[22]	Mui K.W. Wong L.T. Neutral temperature in subtropical climatesd A field survey in air-conditioned offices. Building and Environment 2007, 42(2), pp. 699-706.
[23]	Al-ajmi Farraj F. Loveday D.L. Indoor thermal conditions and thermal comfort in air-conditioned domestic buildings in the dry-desert climate of Kuwait. Building and Environment 2010, 45, pp. 704-710.