2011 Fiscal Year Final Research Report
The Building of a Refrigeration Cycle Simulation Method Applicable to Multi-refrigerants and Purpose
| Project/Area Number |
21560227
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Thermal engineering
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| Research Institution | Waseda University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 冷凍空調 / 伝熱機器 / 可視化 / 環境対応 / 省エネルギー / 冷媒 / 自然冷媒 |
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| Research Abstract |
A simulation method was completed for the air conditioning cycle for automobiles which takes into consideration such elements as heat transfer in tube of an evaporator and a condenser, air side heat transfer, the flow distribution of the refrigerant, and the influence of oil for HFO1234yf being expected as an attractive alternative refrigerant for R134a. Furthermore, the design optimization of a heat exchanger was attempted for the further deepening which provided guideline for better performance. As a typical example for natural refrigerant, ammonia was selected. Fundamental data corresponding to the practical conditions were obtained. These achievements are to be incorporated into the cycle simulation.
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