Refrigerant for medium and low temperature refrigeration or air conditioner heat pump system
Title：
Refrigerant for medium and low temperature refrigeration or air conditioner heat pump system
Application Number：
 00121158
Application Date：
 2000/07/28
Announcement Date：
 2001/01/17
Pub. Date：
Publication Number：
 1280165
Announcement Number：
 1123617
Grant Date：
Granted Pub. Date：
 2003-10-8
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C09K 5/04
Applicant(s)：
 Qinghua Univ.
Inventor(s)：
 Zhu Mingshan, Shi Lin, Han Lizhong
Key Words：
 Refrigerant, medium and low temperature refrigeration, air conditioner heat pump system
Abstract：
 The refrigerant consists of three kinds of material including propane (R290), ethane pentafluoride (HFC-125) and methane difluoride (HFC-32). It is non-toxic and has excellent thermal property. Though ito GWP and COP is lower than that of available refrigerator R502, great specific refrigerating amount and other operation parameters, such as compression ratio and exhaust temperature are superior to R502, and no damage to ozone layer. When used to replace available refrigerant R502 as short-period, middle-period or long-period refrigerant, there is no need of altering main parts in equipment and production line.
Claim：
Priority：
PCT：
LegalStatus：

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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