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nirvana33 [79]
3 years ago
12

A certain heat pump produces 200 kW of heating for a 293 K heated zone while only using 75 kW of power and a heat source at 273

K. Calculate the COP of this device as well as the theoretical maximum COP
Engineering
1 answer:
vodka [1.7K]3 years ago
8 0

Answer:

COP(heat pump) = 2.66

COP(Theoretical maximum) = 14.65

Explanation:

Given:

Q(h) = 200 KW

W = 75 KW

Temperature (T1) = 293 K

Temperature (T2) = 273 K

Find:

COP(heat pump)

COP(Theoretical maximum)

Computation:

COP(heat pump) = Q(h) / W

COP(heat pump) = 200 / 75

COP(heat pump) = 2.66

COP(Theoretical maximum) = T1 / (T1 - T2)

COP(Theoretical maximum) = 293 / (293 - 273)

COP(Theoretical maximum) = 293 / 20

COP(Theoretical maximum) = 14.65

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A 3.5-m3 rigid tank initially contains air whose density is 2 kg/m3 . The tank is connected to a high-pressure supply line throu
Mumz [18]

Answer:

Explanation:

First, we find the mass of the air originally in the tank.

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Density of air = 2 kg/m^3; Volume of the tank =  3.5 m^3

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The mass of the air initially in the tank is 7 kg.

After air is allowed to enter, the mass changes.

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The mass of air that entered the tank is 15.75 kg.

6 0
3 years ago
Brazing, Soldering and Adhesive Bonding are the types of • Liquid Solid System Welding Solid State Welding • Fusion Welding . No
olga_2 [115]

Answer: Solid state welding

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hoa [83]

Answer:

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Explanation:

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Aloiza [94]
B and D
hope this helped
4 0
3 years ago
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