Constant temperature and humidity high-precision air conditioning design: cooling and heating loads and environmental disturbance factors
Release time:
2018-04-13
The main disturbance factors that affect the heat and humidity environment of the high-precision constant temperature and humidity room include: enclosure structure, fresh air, personnel, lighting and equipment. In the design of the high-precision constant temperature and humidity environment, different measures should be taken according to requirements to reduce or eliminate the impact of these factors on the heat and humidity environment.
The main disturbance factors that affect the heat and humidity environment of the high-precision constant temperature and humidity room include: enclosure structure, fresh air, personnel, lighting and equipment. In the design of the high-precision constant temperature and humidity environment, different measures should be taken according to requirements to reduce or eliminate the impact of these factors on the heat and humidity environment.
The main measures include:
1) Adopt internal insulation and other measures to optimize the thermal insulation performance of the enclosure structure; improve the airtightness of doors and windows.
2) Reasonably set the room building layout. The constant temperature and humidity room with higher precision requirements should generally not be set in a room with external windows; when necessary, a suite should be set outside the high-precision constant temperature and humidity room, and the temperature of the suite should be controlled within a reasonable range.
3) Improve the automation level of production and experiments, and minimize the number of people in the room; determine the fresh air volume according to the number of people in the experiment and the hygiene requirements, and reduce unnecessary fresh air volume requirements; in some occasions, the fresh air needs to be treated separately and then mixed with the return air.
4) Use energy-saving lamps with low heat generation;
reduce the heat dissipation of experimental equipment, and the necessary heating equipment should be kept away from the temperature and humidity control area, or take local cooling measures.
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