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We can say that thermal comfort is the sensation that people experience when they do not feel cold or heat with respect to the environment in which they live or carry out their activity, that is, they perceive a feeling of satisfaction with the thermal environment. Table of Contents Environmental factors Personal factors Preventive measures for thermal comfort And the concept of thermal comfort is not simple in its interpretation; It is a subjective concept, which cannot be expressed in degrees and cannot be defined by acceptable temperature ranges since it is a personal experience influenced by various variables such as humidity and air speed, people's clothing, the physical activity they develop... and in addition to all this, it can be different from one individual to another within the same space. For example, a person dressed in a certain way climbing stairs in a cold environment will feel warm while another person sitting in the same clothing would feel too cold in that same environment. Furthermore, we must take into account that in the workplace , the concept of thermal comfort takes on special relevance since working in conditions of excessive cold or heat generates a decrease in work performance, loss of concentration and, consequently, an increase in errors.
It has been proven that carrying out certain professional activities in thermally uncomfortable environments can increase the risk of workplace accidents. In this sense, various studies on health and safety suggest that we can speak of a work environment with “reasonable comfort” when at least % of the occupants who carry out their work in said environment consider the ambient temperature as comfortable. There are various factors that influence thermal comfort, some environmental and others personal, which we will develop below Armenia Email List Environmental factors Among the environmental factors that influence our feeling of thermal comfort, there are three fundamental variables: Air temperature; Dry air temperature is the temperature of the air surrounding the individual. The difference between this temperature and that of people's skin determines the heat exchange between the individual and the air and this exchange is called "convection heat exchange" while it is called "radiation heat exchange", heat exchange between different surfaces in the environment (skin, walls, ceilings...). Thermal comfort temperatures are considered to be those that range from degrees in the winter months to degrees in the summer months. RH; The relationship between the actual amount of water vapor that is in the air and the maximum amount it could contain.
The higher the relative humidity , the more difficult it is to lose heat through the evaporation of sweat and therefore, our feeling of comfort is greater in dry heat than in humid heat. It is considered that humidity between and % can give a feeling of comfort. Airspeed; in reference to the speed of the air with which a person is in contact (measured in m/s). The faster the air moves, the greater the heat exchange between the person and the air (for example, drafts generally make us feel colder). The comfort parameters regarding air speed recommend a maximum of m/s. Personal factors Thermal comfort can also be affected by a series of personal factors, which would be: Dress; People's clothing directly affects heat exchange with the air and surrounding surfaces. Physical activity; The level of activity of people or workers, that is, the heat generated by muscle metabolism, significantly affects the perception of the sensation of thermal comfort. Wellness and diseases; Access to food or drink, acclimatization or state of health are other factors that influence the feeling of thermal comfort. Preventive measures for thermal comfort When it comes to preventing any situation of lack of thermal comfort in the environment, it will be essential to have an adequate air conditioning system and in this sense, an appropriate ventilation system will contribute not only to improving the feeling of environmental comfort, but also.
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发表于 2024-2-15 18:19:36
