U-shaped dehumidification heat pipe

U-shaped dehumidification heat pipe

The most suitable temperature for human habitation is 20 ℃ -24 ℃, and the humidity is RH 40-60%. Excessive humidity can cause bacterial growth, mold growth in buildings and textiles, and lead to diseases. Therefore, the air supply of air conditioning should not only have a suitable temperature, but also control humidity. In some rooms with precision equipment, humidity is sometimes more important. The commonly used dehumidification method is to cool and dehumidify the air, then raise the temperature to lower the relative humidity and send it out. Raising the temperature requires a large amount of thermal or electrical energy consumption.

After using a U-shaped three-dimensional dehumidification heat pipe, due to the lower temperature of the air behind the surface cooler than the air in front of the surface cooler, heat is transferred from the pre cooling section of the heat pipe to the reheating section of the heat pipe. After the air is cooled by the pre cooling section of the heat pipe, it is then cooled and dehumidified by the surface cooler, greatly increasing the dehumidification capacity of the surface cooler. The supercooled air passes through the reheating section of the heat pipe, and the temperature rises to a comfortable supply air temperature, while the relative humidity is greatly reduced.

When there is no U-shaped dehumidification heat pipe:

The required cooling capacity for fresh air (35 ℃, 60%) directly cooled by the surface cooler to 13 ℃, 98% is 43000 * (90.35-36.22) * 1.29 * 1.01/3600=842kw.

And in the future, it is necessary to raise the temperature of the air cooled to 13 ℃ to a suitable temperature before sending it out. If calculated according to the air supply temperature of 22 ℃, an additional heating capacity of 43000 * (22-13) * 1.29 * 1.01/3600=140kw is required

From the above comparison, it can be concluded that:

When adding U-shaped heat pipes, under the same dehumidification capacity (about 680kg/h), only 705kw of cooling capacity needs to be produced by the surface cooler.

Moreover, after passing through the U-shaped heat pipe reheating section, the air supply requirements are fully met, and there is no need to heat the air supply before sending it out.

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