Engineering
Engineering, 26.11.2019 03:31, itssergioa

At steady state, a reversible heat pump cycle discharges energy at the rate q˙h to a hot reservoir at temperature th, while receiving energy at the rate q˙c from a cold reservoir at temperature tc. (a) if th = 13°c and tc = 2°c, determine the coefficient of performance. (b) if q˙h= 15 kw, q˙c= 8.75 kw, and tc = 0°c, determine th, in °c. (c) if the coefficient of performance is 20 and th = 27°c, determine tc, in °c.

answer
Answers: 1

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, heidiburgos1own6c0
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
image
Engineering, 04.07.2019 18:10, skpdancer1605
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
image
Engineering, 06.07.2019 03:10, betru12315
How to convert a friction to decimal ?
Answers: 1
image
Engineering, 06.07.2019 03:10, netflixacc0107
Consider two concentric spheres forming an enclosure with diameters of 12 cm and 18 cm the spheres are maintained at uniform temperatures ti-50°c and t2 = 250°c and have emissivities .45 and .8, respectively. determine the net rate of radiation heat transfer between the two spheres per unit surface area.
Answers: 1
Do you know the correct answer?
At steady state, a reversible heat pump cycle discharges energy at the rate q˙h to a hot reservoir a...

Questions in other subjects:

Konu
Mathematics, 15.10.2020 05:01
Konu
History, 15.10.2020 05:01