Heat exchanging method and apparatus therefor

Abstract

Abstract PURPOSE: To heat or cool a hothouse, by forming doubled film material into a bag, depending it downward after bonding or fusing here and there, and thereby forming fluid passages extending from an upper pipe to a lower pipe. CONSTITUTION: Film material 3 having a required width, length, thickness and strength is superposed in double layers, and the doubled section is bonded or fused here and there, for instance, in a circular or linear form, in the manner that these bonded or fused portions are located with proper intervals from each other. At the top of film material 3, there is provided a pipe 1 having valves 2, and at the bottom of film material 3, there is provided a baglike drain pipe 6 forming therein a passage for liquid 4. Such a heat exchanger is placed in a hothouse for heating the air in the hothouse by feeding underground water 4 of 10W15°C and making it flow down through the inside of baglike film material 3 in case that the room temperature is lower than 5°C. In case that the temperature of air in the hothouse is high, on the other hand, hot air can be cooled without increasing its humidity by circulating cold underground water in the same way. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Tadahiro Yuki

Bibliographic Details