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Development on the Sub-Cooled Hybrid Condenser in Automotive Air-Conditioning System  

김경훈 (경희대학교 기계공학과)
장주섭 (경원전문대학 자동차과)
박종일 (동의대학교 건축설비공학과)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.11, no.5, 2003 , pp. 70-76 More about this Journal
Abstract
An experimental study was performed to understand the heat transfer and fluid dynamic characteristics of Sub-Cooled Hybrid Condenser (SCHC), which conventional condenser and receiver dryer are integrated into. SCHC also employs a sub-cooled refrigerant passages at the end of the condenser in order to supply perfect liquid refrigerant to the expansion unit. Throughout the present study, it was found that the developed SCHC increases in the degree of sub-cooling by 10~100% compared to conventional condenser. The excessive sub-cooling has improved the cooling performance by 10%, and that leads reduction in evaporator outlet air temperature by $1.5^{\circ}C$. Also found through the study is that the refrigerant pressure drop across SCHC is fairly increased due to insertion of the desiccant cartridge in the receiver tank which is composed of zeolite, filter and supporter plate.
Keywords
Sub-cooled hybrid condenser; Heat rejection rate; Degree of sub-cooling; Pressure drop; Cooling performance;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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