A heat pump receives 15 kW of heat from a cool space and uses 5 kW of power. Determine the coefficient of performance of the heat pump, and the heat delivered to the warm space.
Given: Q?C=15 kW; W?=?5 kW
What will be an ideal response?
For a cycle, Wcycle = Qcycle
There are two heat transfers and one power, so Q?cycle=Q?H+Q?C=W?
Therefore, Q?H= - 20 kW
For the heat pump: ?=|Q?H|/|W?| = 4.0
You might also like to view...
____ is the term used to define the up-and-down or side-to-side movement of a rotating tire.
A. Tread wear B. Runout C. Zerk fitting D. Feathered edge
Which of these is a high school program designed to train aspiring automotive technicians?
A) NATEF B) AYES C) ASE D) COBRA
Technician A says oil that pressure should be tested before installation of the engine in the vehicle. Technician B says that some cylinder heads use the torque-to-yield method, where the head bolts are tightened to a specified torque and then rotated an additional specified number of degrees. Who is right?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
A spray pond would be an example of a ____________________ draft cooling application.
Fill in the blank(s) with the appropriate word(s).