نتایج جستجو برای: human thermal comfort
تعداد نتایج: 1863040 فیلتر نتایج به سال:
INTRODUCTION Temperature perception and thermal comfort of headgear have most often been studied with thermal manikin headforms. An underlying assumption of these measurements is that of a direct relationship between thermal perception of subjects and a measure obtained from such headforms (e.g. heat loss, temperature, heat flux, or airflow). Several studies found that in warm environments the ...
Maintaining human body temperature is one of the most basic needs for living, which often consumes a huge amount of energy to keep the ambient temperature constant. To expand the ambient temperature range while maintaining human thermal comfort, the concept of personal thermal management has been recently demonstrated in heating and cooling textiles separately through human body infrared radiat...
Nowadays, the issue of thermal comfort has been raised as one of the important factors in the quality of urban spaces along with physical factors. In fact, the quality of urban spaces is important for the use of citizens and should be considered. However, due to the impact of various parameters in urban open spaces that affect the thermal comfort of users and the lack of codified principles in ...
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since the energy consumption has become one of the crisis of modern buildings, modeling the iranian past architecture patterns could be helpful. the shopping streets as one of the main sectors consuming energy locate near the open spaces it seems, therefore, they need more thermal comfort. however, using passive techniques, the iranian traditional bazaars architecture solved the problems regard...
The paper discusses the concept of an adaptive thermal comfort design methodology and its impact on the selection, design and performance of climate control systems for large public spaces with transient occupancy in hot and humid climates. It outlines the design methodology which is based on providing localised comfort conditions to zones within a building based on its occupancy patterns, acti...
Background and aims: lack of thermal comfort in outdoor environments, can cause disorders and diseases, negative impact on productivity and performance, and even can cause death. Therefore, it is important to evaluate it. Various indices and models have been used to assess the level of comfort of humans. In most evaluations has been tried to estimate the comfort level using meteorological data ...
ASHRAE 55-2004 and ISO 7730 standards failed to predict actual comfort level and lead to oversize design of HVAC system. So proper thermal environment monitoring is an important subject to have right size of HVAC systems. A prototype thermal EM system has been developed. Thermal environment parameters such as: temperature, relative humidity, CO and CO2 are measured by using the developed system...
11 Thermal comfort in outdoor spaces is strongly associated with the quality of social life 12 in an urban community. This study investigated dynamic outdoor thermal comfort under 13 cold, mild, and hot climatic conditions with air temperature ranging from -0.1 to 35.0 oC. 14 Using a total of 26 human subjects in 94 tests under these climatic conditions, this study 15 measured outdoor thermal e...
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