An evaluation of the bioclimatic chart for choosing design strategies for a thermostatically-controlled residence in selected climates

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Title: An evaluation of the bioclimatic chart for choosing design strategies for a thermostatically-controlled residence in selected climates
Author: Visitsak, Sopa
Abstract: To be successful in sustainable building design , architects must consider energy efficient design strategies in the early design stage . Unfortunately , many architects still rely on simplified analysis , synthesis techniques , and historical examples . Although , building energy simulations are becoming more common in the design of buildings , architects rarely use simulation in the early design stage . The "Bioclimatic" charts have been used in the early design stage to define potential building design strategies to achieve indoor thermal comfort . Currently , many architects use the Givoni -Milne bioclimatic design chart (Milne and Givoni , 1979 ) , which was developed based on principle reasoning and heuristics . There have been many attempts to develop computerized programs to further the bioclimatic analysis ; however , there have been very limited efforts to test and evaluate the design strategies of the chart using simulations of a thermostatically -controlled building . Therefore , the purpose of this research is to promote comfortable buildings that reduce energy use through appropriate building design strategies . The objectives of the research are to develop a more accurate bioclimatic chart for a thermostaticallycontrolled residence by testing and evaluating the Givoni -Milne bioclimatic chart . The analysis is performed with DOE -2 .1e program (Winkelmann , 1993 ) and TMY2 weather data (Marion and Urban , 1995 ) for several climates . To achieve these objectives , four main tasks were accomplished : 1 ) investigate the Givoni -Milne Bioclimatic Chart using representative weather data from several climates , 2 ) analyze and modify the design strategy boundaries using DOE -2 program and TMY2 weather data to simulate the effects of varied conditions of a thermostatically -controlled residence in different climates , 3 ) compare these new design strategy boundaries to the original Givoni -Milne design strategy boundaries , and 4 ) develop general guidelines for the new bioclimatic chart . In summary , there were some differences in the results from the Givoni -Milne bioclimatic chart and the DOE -2 simulation results . These results imply that without further modification , the G -M Chart may have only a limited use for a thermostaticallycontrolled residence . Therefore , to improve the usefulness of the bioclimatic chart the new bio -climatic chart for choosing design strategies for a thermostatically -controlled residence in the hot -humid climate of Houston , Texas , was developed . This new bioclimatic chart for a thermostatically -controlled residence will be a useful tool for architects and engineers in the early design stage . Similar versions of the new bioclimatic for other climates could then be developed .
URI: http : / /hdl .handle .net /1969 .1 /85782
Date: 2008-10-10

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An evaluation of the bioclimatic chart for choosing design strategies for a thermostatically-controlled residence in selected climates. Available electronically from http : / /hdl .handle .net /1969 .1 /85782 .

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