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Effect of pre-cooler on supply and return air of air curtain in display cabinet.

[In Chinese. / En chinois.]

Author(s) : ZHANG W., GONG Y., LU Y.

Type of article: Article

Summary

This study focused on a vertical open-type display cabinet with double air curtain, and investigated the effect of pre-cooler on
supply and return air of air curtain in display cabinet. The experimental investigation was undertaken in the test room with temperature of 25°C and relative humidity of 60%. The results showed that: the temperature of the supply air was not obviously elevated, and the return air temperature was reduced by 5°C ; the inner supply air and the return air relative humidity of air curtain changed little, the outer supply air relative humidity dropped from 69% to 60% ; and the enthalpy of outer supply air kept a fixed value, and the enthalpy of the return air decreased by 21.4%. The decreases of return air temperature and enthalpy could lead to significant decrease in the display cabinet load.

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Pages: 111-114

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