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Numerical Simulation and Experimental Verification of the Effect ofAir Duct Configuration on the Cold Storage Cabinet(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2019年02期
Page:
33-
Research Field:
能源与机械工程
Publishing date:

Info

Title:
Numerical Simulation and Experimental Verification of the Effect ofAir Duct Configuration on the Cold Storage Cabinet
Author(s):
Chen Zhiming1; Wang Qing2; Teng Fei2; Huang Hu1; Zhang Zhongbin1
(1.School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China)(2.Jiangsu Beiyang Cold-Chain Equipment Technology Co.,Ltd.,Taizhou 225300,China)
Keywords:
cold storage cabinet; static pressure space; angle of air supply plate; perforation ratio; evaluation index
PACS:
TB69
DOI:
10.3969/j.issn.1672-1292.2019.02.005
Abstract:
The compound effect of air duct configurations and static pressure space can noticeably improve the internal airflow distribution and optimize the thermal performance of the cold storage cabinet. This paper studies the cold storage cabinet with or not static pressure space mode of upper supply and upper return and changing the air duct configuration. Eleven numerical models are proposed and analyzed by changing the angle of the air supply plate(θ=0°,θ=1.5°,θ=3°)and perforation ratio of the air supply plate(φ=5%,φ=10%,φ=15%). The velocity,temperature field of the cold storage cabinet using the improved model and typical model are measured and compared. Furthermore,in order to evaluate the satisfaction degree of the thermal performance of the cold storage cabinet,evaluation index is proposed to evaluate the effect of static pressure space and air duct configuration. The optimal model is found after evaluate comparison,that is the airflow distribution and thermal performance are the best with the air supply static pressure space and the air supply plate angle θ at 1.5° and the perforation ratio of the air supply plate φ at 10%.

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Last Update: 2019-06-30