技术中心

【英文篇名】 Numerical simulation of refrigerant flow arrangement in condensers(1): developing and verifying of a mathematic model 【作者中文名】 邓斌; 陶文铨; 林澜; 【作者英文名】 By Deng Bin★; Tao Wenquan and Lin Lan ★Xi’an Jiaotong University; Xi’an; China; 【作者单位】 西安交通大学广东科龙电器股份有限公司; 西安交通大学; 广东科龙电器股份有限公司; 【文献出处】 暖通空调, Heating Ventilating 冷凝器; 流程布置; 数学模型; 模拟; 【英文关键词】 ε-NTU method; condenser; refrigerant flow arrangement; mathematic model; simulation; 【摘要】 基于传热单元数法,建立了冷凝器的数学模型,模拟了两种不同流路冷凝器的换热性能和阻力特性。对比结果表明,冷凝器沿管长的壁温分布与前人的实验结果较为一致,阻力计算结果与实验结果最大偏差为7%,该模型可以用来比较不同形式流路对冷凝器性能的影响。 【英文摘要】 Based on the ε-NTU method, develops a mathematic model of condenser and simulates the heat transfer performances and the resistance characteristics of two condensers with different refrigerant flow arrangements. The results show that the location tube-wall temperature distribution along the tube length agrees with experimental results recorded in previous literature, that the maximum total pressure error between the numerical simulation and the experimental values is 7%, and that the mathematic model can be...