1800-150-456-789
FlagBACK
Flag Thermal Physics> A heat engine is used to drive a heat pum...
question mark

A heat engine is used to drive a heat pump. The heat transferred from the heat engine and from the heat pump is used to heat the water circulating through the radiator of a building. The efficiency of the heat engine is 37% and the cop of the heat pump is 6. Evaluate the ratio of the heat transfer to the circulating water to the heat transfer to the heat engine

Tamilmani , 7 Years ago
Grade 12th pass
anser 1 Answers
Arun

Last Activity: 7 Years ago

Let Q1 be heat entering the engine and Q2 and Q3 be the heat transfer to water.

To find: (Q2+Q3)/Q1 = k

Given: η = 0.37; COP =6

Solution: W = ηQ1 = 0.37Q1

Q2 = (1-η) Q1 = 0.63 Q1

Q3 = COP x W = 6 x 0.37 x Q1 = 2.22 Q1

K = (0.63 Q1 + 2.22 Q1)/Q1 = 2.85

Regards

Arun 

Provide a better Answer & Earn Cool Goodies

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Other Related Questions on thermal physics

question mark
A container filled with a sample of an Idea gas at the pressure of 1.5atm. the gas is compressed isothermal ly to one fourth of its original volume. What is the new pressure of the gas?
 
thermal physics
0 Answer Available

Last Activity: 2 Years ago

question mark
how do we know the electric field due to an electric dipole of dipole moment P at distance r from the centre of dipole is fiven by .. where theta is angle between p amd r vector..
thermal physics
0 Answer Available

Last Activity: 2 Years ago

question mark
A A mole of helium gas initially at stp undergoes an isovolumetric process in which its pressure falls to half its initial value. The work done by gas is
 
thermal physics
0 Answer Available

Last Activity: 3 Years ago

question mark
  1. 5000 J of heat are added to two moles of an ideal monatomic gas, initially at a temperature of 500 K, while the gas performs 7500 J of work. What is the final temperature of the gas? step by step please
thermal physics
1 Answer Available

Last Activity: 3 Years ago

question mark
Please help me with the  answer of this question  related to radiation graph
thermal physics
0 Answer Available

Last Activity: 3 Years ago