Engineering, 10.03.2020 02:06 desimond01
A heat pump with an ideal compressor operates between 0.2 MPa and 1 MPa. Refrigerant R134a flows through the system at a rate of 0.3 kg/s. The heat pump is used to heat a home that loses heat to the environment at a rate of 180,000 Btu/hr. Refrigerant leaves the condenser as a subcooled liquid.
Determine the mass flow rate of refrigerant.
Answers: 2
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
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Engineering, 03.07.2019 23:20
Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct
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Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
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A heat pump with an ideal compressor operates between 0.2 MPa and 1 MPa. Refrigerant R134a flows thr...
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