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2 years ago

4.2 A vapor compression refrigeration machine uses 30kW of electric power to produce 50 tons of cooling. What is

Engineering

1 answer:

stellarik [79]2 years ago

6 0

Answer:

5.833

Explanation:

Coefficient of Perfomance (COP) is the ratio of refrigeration effect to power input.

$COP=\frac {RE}{P}$ where RE is refrigeration effect and P is power input

Here, the power input is given as 30 kW

We also know that 1 ton cooling is equivalent to 3.5 kW hence for 50 tons, RE=50*3.5=175 kW

Now the $COP=\frac {175}{30}=5.833$

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Answer:

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2 years ago

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3 years ago

g Consider a thin opaque, horizontal plate with an electrical heater on its backside. The front end is exposed to ambient air th

xxTIMURxx [149]

Answer:

The electrical power is 96.5 W/m^2

Explanation:

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2 years ago

How do you build a engine best anwser will get marked as brainlist

marysya [2.9K]

Answer:

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1 year ago

The steam requirements of a manufacturing facility are being met by a boiler whose rated heat input is 5.5 x 106 Btu/h. The comb

Veronika [31]

Answer:

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3 years ago