3D and transient numerical modelling of door opening and closing processes and its influence on thermal performance of cold rooms

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• 作者：Rui Carneiro ; P.D. Gaspar ; ^dinis@ubi.pt ; P.D. Silva
• 关键词：Air infiltration ; Thermal performance ; Cold room ; Door&rsquo ; s typology ; Tracer gas ; Computational fluid dynamics
• 刊名：Applied Thermal Engineering
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：113
• 期：Complete
• 页码：585-600
• 全文大小：3805 K
• 卷排序：113

文摘

A 3D CFD modelling of opening/closing cycle of cold room’s doors is developed. The CFD simulation uses the tracer gas concentration decay experimental technique. Air infiltration rate through sliding door is 20% lower than through a hinged one. Air temperature inside cold room with sliding door is 17% lower than with hinged one. The developed model extends the analytical results for door opening/closing periods.