A POLYMERIC APPROACH TO COUNTERACT FROSTING IN AIR-TO-AIR HEAT-EXCHANGERS

被引：9

作者：

OSTIN, R

JOHANNESSON, G

机构：

[1] Dept of Applied Physics, University of Umeå

来源：

HEAT RECOVERY SYSTEMS & CHP | 1991年 / 11卷 / 05期

关键词：

D O I：

10.1016/0890-4332(91)90009-S

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper reports on studies of polymer coatings with the purpose of counteracting the problem of frost formation on heat exchanger surfaces. Both hydrophilic and hydrophobic polymers are investigated in a model heat exchanger. For the hydrophilic coating, the time during which the heat exchanger surface is free from frost is of the order of 3 h. This time is found to be dependent on thickness of the applied coating, water vapour uptake and temperature. Compared to an uncoated aluminium surface the hydrophobic polymers investigated showed no improvement for counteraction of frost formation.

引用

页码：415 / 421

页数：7

共 7 条

[1]

Loughborough, Haas, Reduction of the adhesion of ice to de-icer surfaces, Journal of the Aeronautical Sciences (Institute of the Aeronautical Sciences), pp. 126-134, (1946)

[2]

Eskin, Fontaine, Witzell, Strength characteristics office in contact with various kinds of surfaces, Ref. Eng., pp. 33-38, (1957)

[3]

Jellinek, Et al., Ice releasing block-copolymer coatings, Colloid and Polymer Sci., 256, pp. 544-551, (1978)

[4]

Oksanen, Friction and adhesion of ice, doctoral thesis, (1983)

[5]

Andrews, Lockington, The cohesive and adhesive strength of ice, J. Material Sci., 18, pp. 1455-1465, (1983)

[6]

Hakansson, Andersson, Backstrom, Improved hot-wire procedure for thermophysical measurements under pressure, Review of Scientific Instruments, 59, pp. 2269-2275, (1988)

[7]

Holmberg, Geringe vereisungsgefahr bei wärmeruckgewinnern mit rotierenden spechermassen, Tree Physiol, 34, pp. 242-246, (1983)

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