| 摘要 |
A method for controlling the temperature and the humidity in storage spaces that tend to become warm and moist, in particular in vegetable and fruit warehouses. According to the method, the air in the storage space is circulated so that it passes across a cooling heat-exchange face, to which face the air delivers some of its heat. In order to keep the relative humidity of the air at its desired maximum value, in a way characteristic of the invention, the temperature of the cooling face is controlled substantially to a dewpoint temperature corresponding to the desired relative humidity, whereat any excess moisture is removed out of the air in the warehouse, but the air cannot become more dry than the desired value of humidity. The surface temperature of the heat exchanger can be brought to the said dewpoint temperature either by adjusting the surface temperature or, alternatively, by dimensioning the cooling apparatus, on the basis of empiric or experimental knowledge, in such a way relative the storage space that the heat exchanger assumes the said temperature in practice. |
