A numerical study on the air-side heat transfer of perforated finned-tube heat exchangers with large

• 作 者: Xiaoqin Liu Jianlin Yu Gang Yan
• 机 构: DepartmentofRefrigeration&CryogenicEngineering,Xi'anJiaotongUniversity,Xi'an710049,China
• 出 处: 2016冷冻空调亚洲大会(8th Asian Conference on Refrigeration and Air-c
• 发表日期: 2016年8期

　　For a finned-tube heat exchanger(FHEXs)with large fin pitches,the enhancement of air-side heat transfer performance by using perforated fins has been numerically investigated in this paper.The effects of the perforation size and number on the air-side j factor and heat transfer rates of the FHEX are analyzed in detail at different large fin pitches.