|
Description:
|
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 . |