Abstract
This thesis consists of a study of thermal comfort under transient conditions. A thermo-regulatory model originally developed by the author has been developed further. The model can predict whether a subject is in a state of thermal comfort under a given set of transient conditions, and what the subject`s thermal sensation will be. The model can also be used to estimate mean and segment skin temperatures, core temperatures, heat losses by radiation, convection and evaporation, and the heat storage rate in the human body. Experiments were carried out both with a full-scale thermal manikin and with human subjects. The manikin was used to determine convective heat transfer coefficients for various parts of the human body. The human subjects took part in a climate chamber experiment in which sweating, skin temperature and sensation were studied. Data from the manikin were used to develop the computer code. The experimental techniques with the manikin were used for studying the effects of various ventilation systems in vehicles. In the climate chamber experiments, sweating was studied by means of a noninvasive technique. A sensitive `differential balance` was constructed to measure the small changes in total body weight that result from sweating. The skin temperatures were
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Citation Formats
Wang, Xiaoling.
Thermal comfort and sensation under transient conditions.
Sweden: N. p.,
1994.
Web.
Wang, Xiaoling.
Thermal comfort and sensation under transient conditions.
Sweden.
Wang, Xiaoling.
1994.
"Thermal comfort and sensation under transient conditions."
Sweden.
@misc{etde_10105737,
title = {Thermal comfort and sensation under transient conditions}
author = {Wang, Xiaoling}
abstractNote = {This thesis consists of a study of thermal comfort under transient conditions. A thermo-regulatory model originally developed by the author has been developed further. The model can predict whether a subject is in a state of thermal comfort under a given set of transient conditions, and what the subject`s thermal sensation will be. The model can also be used to estimate mean and segment skin temperatures, core temperatures, heat losses by radiation, convection and evaporation, and the heat storage rate in the human body. Experiments were carried out both with a full-scale thermal manikin and with human subjects. The manikin was used to determine convective heat transfer coefficients for various parts of the human body. The human subjects took part in a climate chamber experiment in which sweating, skin temperature and sensation were studied. Data from the manikin were used to develop the computer code. The experimental techniques with the manikin were used for studying the effects of various ventilation systems in vehicles. In the climate chamber experiments, sweating was studied by means of a noninvasive technique. A sensitive `differential balance` was constructed to measure the small changes in total body weight that result from sweating. The skin temperatures were determined by using an infra- red camera. The results showed that the higher the relative humidity, the lower the skin temperatures were. The subjects recorded their thermal sensations during experiments. Thermal sensation varied in similar ways at different segments. The experimental techniques with the manikin have been applied to determine the most suitable ventilation system for bus drivers. The thermo-regulatory model was used to simulate the worst situation in both summer and winter. 156 refs., 76 figs., 29 tabs}
place = {Sweden}
year = {1994}
month = {Nov}
}
title = {Thermal comfort and sensation under transient conditions}
author = {Wang, Xiaoling}
abstractNote = {This thesis consists of a study of thermal comfort under transient conditions. A thermo-regulatory model originally developed by the author has been developed further. The model can predict whether a subject is in a state of thermal comfort under a given set of transient conditions, and what the subject`s thermal sensation will be. The model can also be used to estimate mean and segment skin temperatures, core temperatures, heat losses by radiation, convection and evaporation, and the heat storage rate in the human body. Experiments were carried out both with a full-scale thermal manikin and with human subjects. The manikin was used to determine convective heat transfer coefficients for various parts of the human body. The human subjects took part in a climate chamber experiment in which sweating, skin temperature and sensation were studied. Data from the manikin were used to develop the computer code. The experimental techniques with the manikin were used for studying the effects of various ventilation systems in vehicles. In the climate chamber experiments, sweating was studied by means of a noninvasive technique. A sensitive `differential balance` was constructed to measure the small changes in total body weight that result from sweating. The skin temperatures were determined by using an infra- red camera. The results showed that the higher the relative humidity, the lower the skin temperatures were. The subjects recorded their thermal sensations during experiments. Thermal sensation varied in similar ways at different segments. The experimental techniques with the manikin have been applied to determine the most suitable ventilation system for bus drivers. The thermo-regulatory model was used to simulate the worst situation in both summer and winter. 156 refs., 76 figs., 29 tabs}
place = {Sweden}
year = {1994}
month = {Nov}
}