PhD Thesis - Energy Systems Research Unit - University of Strathclyde

cooling device in conjunction with a micro-cogeneration unit. The cooling season inthis thesis was assumed to span four months, from the beginning of June to the endof September, a calendar period of 122 days during which the mean outsidetemperature is at or above 25°C. Table 3.3 shows the temperature control settingsadopted in the case of the individual apartments in the 3 household building.Table 3.3 - Control settings for cooling season; 3 Household buildingFloor level/ApartmentZoneHouseholdNo.Occupancy(No. ofpersons)Control time periods(Temperature limits)(‘On’ - ‘Off’)CommentGroundFloorLivingAreaBedroomArea2A 207.00-08.00 Hours18.00-24.00 Hours(24°C - 21°C)00.00-07.00 Hours(24°C - 21°C)Ground floor isvacant between08.00-18.00 HoursMiddleFloorLivingAreaBedroomArea3B 307.00-09.00 Hours17.00-24.00 Hours(24°C - 21°C)00.00-07.00 Hours(24°C - 21°C)Middle floor isvacant between09.00-17.00 HoursTop FloorLivingAreaBedroomArea4B 407.00-10.00 Hours15.00-24.00 Hours(24°C - 21°C)00.00-07.00 Hours(24°C - 21°C)Top floor is vacantbetween 10.00-15.00 HoursA major difference between the cooling and heating season thermal controls is thefact that during the night the temperature in the bedroom area zones wascontinuously controlled. In summer, especially during the night, adaptive measuresmay be limited, as even opening windows may prove worthless if the outsidetemperature is high and there is a lack of natural ventilation. To ensure optimumtemperature conditions throughout day and night, the temperature inside theapartments is hence always thermally controlled, except for time periods when anindividual apartment was assumed to be vacant.The temperature settings were selected on the basis of a three degree temperaturerange, below the 24°C temperature suggested by Humphreys in [8] as being themaximum temperature limit beyond which sleep may become uncomfortable and94