Masters degree project on thermal comfort with radiant heating walls
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Transcript of Masters degree project on thermal comfort with radiant heating walls
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evds www.ucalgary.ca/evds
Field Study of Thermal Comfort with Radiant Walls
Susana Garcia-San Roman
Supervisor Dr. James A. LoveNovember 22, 2011
SAIT Tower Residence 24,000 m222 stories
445 suites for students715 residents.
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evds www.ucalgary.ca/evds
QUESTIONS BEFORE THE RESEARCH ...
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KEY POINTS- OUTLINE
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THERMAL COMFORT: PERSONAL PARAMETERS
QUESTIONNAIRE RESPONDENTS
RESULTS – WINTER SURVEY
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evds www.ucalgary.ca/evds
THERMAL COMFORT: ENVIRONMENTAL PARAMETERSDRY BULB TEMPERATURE (ºC)
COOLING DESIGN T (26.6ºC)
HEATING DESIGN T (25.7ºC)
19-29ºC
14-24ºC
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INDOOR CLIMATE (WINTER): AIR STRATIFICATION
THERMAL COMFORT: ENVIRONMENTAL PARAMETERS
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evds www.ucalgary.ca/evds
THERMAL COMFORT: ENVIRONMENTAL PARAMETERSINDOOR CLIMATE: RADIANT ASYMMETRY
SURFACE TEMPERATURES (WINTER)
SURFACE TEMPERATURES (SUMMER)
COLD FLOOR
19ºC
12ºC
15ºC 27ºC
44ºC25ºC
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evds www.ucalgary.ca/evds
OCCUPANT COMFORT ASSESSMENT
LOCAL THERMAL DISCOMFORT
•29% COLD FLOOR•16% HIGH VERT. AIR T DIFFERENCE•RADIANT ASYMMETRY•DRAFT
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Predicted percentage dissatisfied: PPD 10 % + 10 %Predicted mean vote: PMV - 0.5 to + 0.5
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evds www.ucalgary.ca/evds
PREDICTED COMFORT INDICESCALCULATION WITH CODE ASHRAE 55 TC STANDARD FROM 6 PARAMETERS
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OCCUPANT COMFORT ASSESSMENT (QUESTIONNAIRE RESPONSES)
THERMAL SENSATION
ACTUAL COMFORT INDICES
VOTES IN THE 3 CENTRAL CATEGORIES 74 % ACTUAL % DISSATISFIED 26 %
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COMPARISON INDOOR ENVIRONMENT PARAMETERS WITH COMFORT ZONE (WINTER)
1 CLO1-1.3 METVa 0.2 m/s
COMFORT ZONE (STANDARD 55 ASHRAE 2010)
SATISFIED
DISSATISFIED
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evds www.ucalgary.ca/evds
THERMAL RESPONSES IN A DYNAMIC ENVIRONMENT
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ADAPTIVE MODEL IN THERMAL COMFORT RESEARCH
TC ASSESSMENT, A DYNAMIC ACCUMULATIVE DECISION MAKING PROCESS
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evds www.ucalgary.ca/evds
ADAPTIVE MODEL IN THERMAL COMFORT RESEARCH
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... QUESTIONS AFTER THE RESEARCH
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Thank you!
Questions welcome