Engineering, 05.05.2020 19:26, bob4059

A vapor‐compression refrigeration system circulates Refrigerant 134a at a rate of 0.2 kg/s. The refrigerant enters the compressor at ‐10 °C, 1 bar, and exits at 8 bar. The isentropic compressor efficiency is 70%. There are no appreciable pressure drops as the refrigerant flows through the condenser and evaporator. The refrigerant leaves the condenser at 8 bar, 30°C. Ignoring heat transfer between the compressor and its surroundings, determine: (a) the rate at which heat energy is removed from the refrigerated space, in kW. (b) the coefficient of performance.

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 14:10, cowgyrlup124

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Answers: 1

continue

Engineering, 04.07.2019 18:10, niyawilliams23

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Answers: 1

continue

Engineering, 04.07.2019 18:10, qwertylol12345

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Answers: 2

continue

Engineering, 04.07.2019 19:10, kimmy6973

What is creep? what is stress relaxation?

Answers: 1

continue

Do you know the correct answer?

A vapor‐compression refrigeration system circulates Refrigerant 134a at a rate of 0.2 kg/s. The refr...