Impact factors of air curtain performance in cold store

Nan Xiaohong; He Yuan; Liu Lijun

Volume 27 Issue 10

Oct. 2011

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Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2011 > 27(10): 334-338.

Nan Xiaohong, He Yuan, Liu Lijun. Impact factors of air curtain performance in cold store[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2011, 27(10): 334-338.

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Impact factors of air curtain performance in cold store

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Received Date: November 22, 2010
Revised Date: September 25, 2011
Published Date: October 30, 2011

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Abstract

Abstract

A coupled global model of fluid flow and heat transfer was developed for a cold store in use. The convective heat transfer in the springhouse, the jet flow of the air curtain installed at the entrance and the environmental flow outside the cold store were solved together in a coupled way. The effects of the outlet width, the jet velocity and the jet angle of the air curtain on its performance and efficiency were numerically studied respectively under the condition that the air curtain and store gate opened simultaneously. The results showed that there existed an optimal value for the jet velocity and the jet angle at which the air curtain had the best performance and the highest efficiency. A large outlet width does not necessitate for better performance of an air curtain if it exceeds the critical value.
- air curtains,
- cold storage,
- numerical simulation,
- energy saving of buildings,
- cold store

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