Hygro-thermal performance of earth-to-air heat exchanger: long-term data evaluation and short-term simulation
Result description
The thermal comfort requirements and cooling energy demand have significantly increased during the last twenty years. Air heating and/or cooling in an earth-to-air heat exchanger (EAHX) is a possible approach for improvement of thermal comfort in a building and for reduction of ventilation heat loss. A passive family house using mechanical ventilation system equipped with heat recovery and simple EAHX is being monitored since the end of summer 2005. The paper deals with the evaluation of measured data collected during year 2006. Amongst others, the results show the tendencies in moisture performance of monitored EAHX. Besides pure data evaluation, the short-term hygro-thermal simulation of EAHX was performed with a numerical model specially developed for this purpose. The simulation is compared with the monitored data; the comparison serves as the basic experimental validation of the model.
Keywords
earth-to-air heat exchangerhygro-thermal performancemeasurementsimulation
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Hygro-thermal performance of earth-to-air heat exchanger: long-term data evaluation and short-term simulation
Original language description
The thermal comfort requirements and cooling energy demand have significantly increased during the last twenty years. Air heating and/or cooling in an earth-to-air heat exchanger (EAHX) is a possible approach for improvement of thermal comfort in a building and for reduction of ventilation heat loss. A passive family house using mechanical ventilation system equipped with heat recovery and simple EAHX is being monitored since the end of summer 2005. The paper deals with the evaluation of measured data collected during year 2006. Amongst others, the results show the tendencies in moisture performance of monitored EAHX. Besides pure data evaluation, the short-term hygro-thermal simulation of EAHX was performed with a numerical model specially developed for this purpose. The simulation is compared with the monitored data; the comparison serves as the basic experimental validation of the model.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
JN - Civil engineering
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Basic information
Result type
O - Miscellaneous
CEP
JN - Civil engineering
Year of implementation
2007