A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study on thermal sensation and thermal comfort in environment with moderate temperature ramps
Abstract Existing studies show that a steady-state uniform thermal environment does not actually ensure optimal thermal comfort and temperature ramps often occur in actual indoor thermal environment. So an experimental study on skin temperature, thermal sensation and thermal comfort in environment with moderate temperature ramps was conducted by controlling initial temperature, temperature change rate and temperature ramp direction. Experimental results show: The change rate of skin temperature is affected by thermal experience and air temperature change rate under all conditions. Temperature ramp direction has a significant effect on skin temperature change rate in cold environment but little effect in hot environment. The thermal experience, air temperature change rate have an important influence but temperature ramp direction has a little effect on thermal sensation because of body's thermal adaptability. And there is a high linear relationship between thermal sensation and air temperature in one condition. Thermal comfort is subject to thermal experience, air temperature change rate and temperature ramp direction under all conditions. The oscillations will occur when initial temperature is comfortable. Thermal sensation varies linearly with mean skin temperature at certain condition but separation occurs throughout the whole experiment. Thermal comfort is a two-part linear function of thermal sensation from the results of the whole experiment. This study contributes to the knowledge concerning the effects of moderate temperature ramps in actual indoor environment on thermal comfort. When the initial temperature and temperature ramp direction are uncontrollable due to external factors, controlling the temperature change rate is an important method to maintain thermal comfort.
Highlights Thermal experience, temperature change rate and ramp direction have different effects on skin temperature, thermal sensation and comfort. Thermal sensation varies linearly with skin temperature at certain condition but separation occurs throughout the whole experiment. Thermal comfort is a two-part linear function of thermal sensation throughout the whole experiment.
Study on thermal sensation and thermal comfort in environment with moderate temperature ramps
Abstract Existing studies show that a steady-state uniform thermal environment does not actually ensure optimal thermal comfort and temperature ramps often occur in actual indoor thermal environment. So an experimental study on skin temperature, thermal sensation and thermal comfort in environment with moderate temperature ramps was conducted by controlling initial temperature, temperature change rate and temperature ramp direction. Experimental results show: The change rate of skin temperature is affected by thermal experience and air temperature change rate under all conditions. Temperature ramp direction has a significant effect on skin temperature change rate in cold environment but little effect in hot environment. The thermal experience, air temperature change rate have an important influence but temperature ramp direction has a little effect on thermal sensation because of body's thermal adaptability. And there is a high linear relationship between thermal sensation and air temperature in one condition. Thermal comfort is subject to thermal experience, air temperature change rate and temperature ramp direction under all conditions. The oscillations will occur when initial temperature is comfortable. Thermal sensation varies linearly with mean skin temperature at certain condition but separation occurs throughout the whole experiment. Thermal comfort is a two-part linear function of thermal sensation from the results of the whole experiment. This study contributes to the knowledge concerning the effects of moderate temperature ramps in actual indoor environment on thermal comfort. When the initial temperature and temperature ramp direction are uncontrollable due to external factors, controlling the temperature change rate is an important method to maintain thermal comfort.
Highlights Thermal experience, temperature change rate and ramp direction have different effects on skin temperature, thermal sensation and comfort. Thermal sensation varies linearly with skin temperature at certain condition but separation occurs throughout the whole experiment. Thermal comfort is a two-part linear function of thermal sensation throughout the whole experiment.
Study on thermal sensation and thermal comfort in environment with moderate temperature ramps
Wu, Qingqing (author) / Liu, Jianhua (author) / Zhang, Liang (author) / Zhang, Jiawen (author) / Jiang, Linlin (author)
Building and Environment ; 171
2019-12-27
Article (Journal)
Electronic Resource
English
Revisiting thermal comfort and thermal sensation
| Springer Verlag | 2024
Revisiting thermal comfort and thermal sensation
| Springer Verlag | 2024
Overall thermal sensation, acceptability and comfort
| Online Contents | 2008
Overall thermal sensation, acceptability and comfort
| Elsevier | 2006