Working principle of high-temperature heat pump dryer

The main principle of using a high-temperature heat pump dryer in the drying process is to use the heat pump evaporator to absorb the heat energy from the external air, or to recover the waste heat from the exhaust during the drying process. After the compressor does work, the energy is transported (transferred) to the drying box, and the hot air inside the drying box

After repeated cycles of heating, the gas absorbs moisture from the material, cools and humidifies itself, and through the process of hot air dehumidification or condensation, the moisture in the material is discharged and carried away, ultimately achieving continuous drying of the material.

Online systems are basically only driven by thermal energy, so they will not release any polluting gases. The author's research proposes that the thermoelectric coupling system is widely used in the study of calcium oxide/calcium hydroxide hydration/dehydration, reversible CaO/H2O/Ca (OH) 2 reaction during thermal storage, and high/low temperature thermal generation

Cheng. The efficiency of various CHPD systems was evaluated based on energy and energy consumption.

Emphasis is placed on thermal and mass transfer performance, and experimental research is conducted on batch drying using a heat enhanced thermoelectric system. The impact of heat exchange conditions, such as the design of heat exchangers, hot air production performance, and air flow rate. A single cylindrical reactor was initially constructed as a CHPD system for utilization

An important component of reversible reactions of calcium oxide/calcium hydroxide hydration/dehydration. This study involves heating air at approximately 100 ◦ C during the heat release step of a thermoelectric coupling. The temperature of the hydration reactor rises to over 300 ° C, while the temperature of the evaporator remains at 17 ° C. evaporation

The temperature of the device is at a reasonable level as it is obtained from the ambient air. However, at this level of operation, heat and mass transfer issues have been reported in previous studies. The experimental research results show that from the perspective of heat and mass transfer, the reactor enhances the storage/discharge of heat

Consider the characteristics of the dry and hot air generated based on the size and temperature level of the quantity.