Mathematical model, and optimum design and control of solar driven ejector heat pum

• Project/Area Number: 24560242
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Waseda University
• Principal Investigator: SAITO Kiyoshi 早稲田大学, 理工学術院, 教授 (90287970)
• Co-Investigator(Kenkyū-buntansha): 鄭 宗秀 早稲田大学, 理工学術院, 准教授 (00409666) ; 山口 誠一 早稲田大学, 理工学術院, 助教 (70454030)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: エジェクター / 省エネルギー / ヒートポンプ / 数値解析 / 太陽熱

Outline of Final Research Achievements

This research focused on the ejector heat pump system in which the pressureized refrigerant vapor by solar thermal energy can drive the ejector that can be used instead of the compressor. This research revealed the mathematical model and design method of the solar driven ejector heat pump system.
The detailed performance of the ejector element was clarified with visualization and mathematical analysis. Using the unified analysis theory of the energy system the applicant had focused on for 15 years, the mathematical model of the jector heat pump was constructed and the system performance was revealed. This results contribute the development of new heat pump system that can be driven by low grade heat source and upgrading of the unified analysis theory of the thermal system.

Research Products

• [Remarks] 早稲田大学 基幹理工学部 機械科学・航空学科 齋藤研究室
  • URL: http://www.saito.mech.waseda.ac.jp/latest.html