Heat transfer fluid comprising difluoromethane and carbon dioxide
    10.
    发明授权
    Heat transfer fluid comprising difluoromethane and carbon dioxide 有权
    包含二氟甲烷和二氧化碳的传热流体

    公开(公告)号:US07238299B2

    公开(公告)日:2007-07-03

    申请号:US10285934

    申请日:2002-11-01

    IPC分类号: C09K5/04

    CPC分类号: C09K5/045

    摘要: Disclosed are heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The heat transfer fluid comprise from about 30 to about 70 percent, on a molar basis, of carbon dioxide (CO2) and from about 30 to about 70 percent, on a molar basis, of hydrofluorocarbon (HFC), preferably HFC having one to two carbon atoms, and even more preferably difluoromethane (HFC-32). The preferred fluids of the present invention have a vapor pressure of at least about 100 psia at 40° F. and are also preferably not azeotropic.

    摘要翻译: 公开了具有非常理想和意想不到的性能组合的传热流体,以及基于这些流体的传热系统和方法。 传热流体基于摩尔计包含约30至约70%的二氧化碳(CO 2 CO 2)和约30至约70%的氢氟碳化合物(HFC ),优选具有一至二个碳原子的HFC,甚至更优选二氟甲烷(HFC-32)。 本发明的优选流体在40°F时蒸气压至少约为100psia,并且也优选不共沸。