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1.发明申请公开(公告)号：US20190323752A1
公开(公告)日：2019-10-24
申请号：US16071139
申请日：2017-02-03
发明人： Kristian Fredslund , Frede Schmidt , Jan Prins
摘要： A method for controlling a fan (6) of a vapour compression system (1) is disclosed, the fan (6) being arranged to provide a secondary fluid flow across a heat rejecting heat exchanger (3). A temperature difference, ΔT=Tout−Tamb, between a temperature, Tout, of refrigerant leaving the heat rejecting heat exchanger (3) and a temperature, Tamb, of ambient air of the heat rejecting heat exchanger (3) is established. A setpoint value, ΔTsetp, for the temperature difference, ΔT, is obtained, the setpoint value, ΔTsetp, being dependent on the fan speed of the fan (6) in such a manner that the setpoint value, ΔTsetp, increases as the fan speed increases. The fan speed of the fan (6) is controlled in order to control the temperature difference, ΔT, in accordance with the obtained setpoint value, ΔTsetp.
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公开(公告)号：US10724778B2
公开(公告)日：2020-07-28
申请号：US16071139
申请日：2017-02-03
发明人： Kristian Fredslund , Frede Schmidt , Jan Prins
IPC分类号： F25B49/02 , F24F11/77 , F24F140/20
摘要： A method for controlling a fan (6) of a vapour compression system (1) is disclosed, the fan (6) being arranged to provide a secondary fluid flow across a heat rejecting heat exchanger (3). A temperature difference, ΔT=Tout−Tamb, between a temperature, Tout, of refrigerant leaving the heat rejecting heat exchanger (3) and a temperature, Tamb, of ambient air of the heat rejecting heat exchanger (3) is established. A setpoint value, ΔTsetp, for the temperature difference, ΔT, is obtained, the setpoint value, ΔTsetp, being dependent on the fan speed of the fan (6) in such a manner that the setpoint value, ΔTsetp, increases as the fan speed increases. The fan speed of the fan (6) is controlled in order to control the temperature difference, ΔT, in accordance with the obtained setpoint value, ΔTsetp.
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