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Evaporative cooling :Thermal comfort and its energy implications in California climates.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Evaporative cooling :
Reminder of title:	Thermal comfort and its energy implications in California climates.
Author:	Xu, Tengfang.
Description:	225 p.
Notes:	Chair: Edward A. Arens.
Notes:	Source: Dissertation Abstracts International, Volume: 59-08, Section: A, page: 2756.
Contained By:	Dissertation Abstracts International59-08A.
Subject:	Architecture.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9902279
ISBN:	0591993872

Evaporative cooling :Thermal comfort and its energy implications in California climates.
Xu, Tengfang.

Evaporative cooling :Thermal comfort and its energy implications in California climates.[electronic resource] - 225 p.

Chair: Edward A. Arens.

Thesis (Ph.D.)--University of California, Berkeley, 1998.

Evaporative cooling is more energy efficient than conventional air conditioning for comparable cooling, especially in arid areas such as Arizona, Colorado and Utah. In California, designers have not widely accepted the technology largely because of concerns about comfort and health. There is little actual quantitative information about thermal comfort in evaporatively cooling buildings. To advance the technology, it is necessary to address thermal comfort under the elevated humidities in such buildings.

ISBN: 0591993872Subjects--Topical Terms:

208437
Architecture.

Evaporative cooling :Thermal comfort and its energy implications in California climates.
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245 1 0 $a Evaporative cooling : $b Thermal comfort and its energy implications in California climates. $h [electronic resource]
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502 $a Thesis (Ph.D.)--University of California, Berkeley, 1998.
520 # $a Evaporative cooling is more energy efficient than conventional air conditioning for comparable cooling, especially in arid areas such as Arizona, Colorado and Utah. In California, designers have not widely accepted the technology largely because of concerns about comfort and health. There is little actual quantitative information about thermal comfort in evaporatively cooling buildings. To advance the technology, it is necessary to address thermal comfort under the elevated humidities in such buildings.
520 # $a The objectives of this study are to (1) measure the occupant's reactions to the thermal conditions within evaporatively cooled buildings in California, (2) quantify acceptability limits applicable to evaporatively cooled spaces, (3) predict the indoor conditions and energy consumption of a prototypical evaporatively cooled building under different California climates, and (4) draw conclusions about the potential of the technology.
520 # $a The primary approach was to carry out field studies of thermal comfort in evaporatively cooled office and classroom buildings in inland California. The indoor environmental conditions were measured and compared to occupants' subjective votes of comfort and acceptability. These were compared with current ASHRAE comfort standards, and used to test the validity of the comfort zones' boundaries. Field results were generalized by using the DOE-2 program to simulate both the indoor conditions and energy savings produced by evaporative cooling in three climates.
520 # $a The simulations predict indoor conditions and energy use in selected climates for evaluating energy savings' against conventional systems. The results suggest that evaporative cooling can be a feasible alternative cooling technology in California, from the standpoint of thermal comfort and energy efficiency.
520 # $a The field studies find little impact of humidity on building occupants' thermal comfort. The limit of 60% relative humidity was clearly too restrictive for these evaporatively cooled spaces, and a looser limit is needed. The humidities measured in this study were however not high enough to verify the appropriateness of the 20
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