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Experimental study on air flow resistance of an evaporative condenser with water distributed on every tube.

[In Chinese. / En chinois.]

Author(s) : LI T., OUYANG X.

Type of article: Article

Summary

There are a lot of advantages when water is distributed on every tube respectively. The influences of the spray water flow rate
and the air velocity on the air flow resistance of evaporative condenser with water distributed among the whole tube bundle structure were investigated, and conventional spraying water structure was compared with the new structure. The experiment was carried out on the condition that the water flow rate was 0.5 - 1.2 m3 / h and the air velocity was 0.5 - 4.0 m/s. The results show that the air flow resistance of this new structure decreases 11.5% at parallel-flow mode and 49.7% at counter-flow mode respectively. In addition , at counter-flow mode, the air flow resistance increases suddenly when the air velocity is 3.5 m/s, which is higher than that of traditional evaporative condenser. Energy-saving is about 2% , comparing with the conventional spray water structure when used in refrigeration system.

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