平行流冷凝器在12 m客车空调中应用研究

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王铁军 江斌 刘向农 刘杰 韩丰云

(合肥工业大学 合肥 230009)

制冷学报 .-2008，29（5）.－24～27

摘 要：设计了平行流冷凝器，对12m客车空调的管片式冷凝器实现整体替代.在标准空调工况进行的焓差法对比性能实验表明：制冷量Q和能效比EER都略有提高，技术指标满足设计要求.替代后，冷凝器的质量减轻30 kg、尺寸减少40%，制冷剂R134a的充灌量减少16%，推进了客车空调系统的轻量小型化，成本效益显著.同时，发现平行流式冷凝器制冷剂侧流动阻力相对于管片式明显增大。

关键词：市政工程；客车空调；应用研究；平行流冷凝器

Application of parallel flow condenser in bus air conditioning

WANG Tie-jun, JIANG B, LIU X N et al

Hefei University of Technology, Hefei, 230009, China

Abstract A parallel flow condenser has been designed to replace the conventional finned-tube condenser for the bus air conditioning. The experiment was conducted using the enthalpy difference method under the standard conditions. The results show that the refrigerating capacity and the energy efficiency ratio of the system improved slightly. Compared with the finned-tube condenser, the weight, the size, and the refrigerant charge of the condenser assembly decreased by 30 kilogram, 40%, and 16%, respectively. However, the flow resistance of the refrigerant side increased obviously. 7Refs. In Chinese.

Keywords Municipal engineering; Bus air conditioning ; Application research; Parallel flow condenser