A vapor-compression heat pump uses R 12 and provides 30000 Btu/hr of heating. The evaporator pressure is 33 psia, and the refrigerant enters the compressor at 25 F. The compressor's isentropic efficiency is 84%, and the condenser pressure is 130 psia. The electricity to drive the compressor comes from a power plant with an efficiency of 40%. Determine (a) the compressor power; (b) (b) the ratio of heat used in the power plant to produce the electricity to the heat output of the heat pump.

A vapor-compression heat pump uses R 12 and provides 30000 Btu/hr of heating. The evaporator pressure is 33 psia, and the refrigerant enters the compressor at 25 F. The compressor's isentropic efficiency is 84%, and the condenser pressure is 130 psia. The electricity to drive the compressor comes from a power plant with an efficiency of 40%. Determine (a) the compressor power; (b) (b) the ratio of heat used in the power plant to produce the electricity to the heat output of the heat pump.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

1. Why do we require Latitudes and Longitudes? What are the major latitudinal belts? 2. What are Time Zones? 3. How many total time zones are there on the planet earth? 4. How many time zones are there for USA (not just the continental US) and then compare the times of all different time zones of USA with respect to 9:00 a.m. in Atlanta, GA.
Please answer fast
I need the answer as soon as possible
Question 20 of 20 < A Water Balloon Battle. You are launching water balloons at a rival team using a large slingshot. The other team is set up on the opposite side of a flat-topped building that is 30.0 ft tall and 50.0 ft wide. Your reconnaissance team has reported that the opposition is set up 10.0 m from the wall of the building. Your balloon launcher is calibrated for launch speeds that can reach as high as 100 mph at angles between 0 and 85.0° from the horizontal. Since a direct shot is not possible (the opposing team is on the opposite side of the building), you plan to splash the other team by making a balloon explode on the ground near them. If your launcher is located 55.0 m from the building (opposite side as the opposing team), what should your launch velocity be ((a) magnitude and (b) direction) to land a balloon 5.0 meters beyond the opposing team with maximum impact (i.e. maximum vertical speed)? (a) Number i (b) Number i Units Units UNITS CHOICES: no units, degrees, s,…
use even matric number
I am attaching both questions for 4 and 5 with the question in the image. thank you. NOTE : So the last person answered this question WITHOUT refencing the answer for whether question 4 or 5 answeres were given, so i am asking for question 5(or the answer for the question that was NOT solved because it was not referenced.) These were the following answers given to me from the last person on bartleby who answered my question without referencing whether it was the answer for question 4 or 5. 1 pass 2 fail 3 fail 4 pass
I need these three parts answered, if you are unable to answer all three parts please leave it for another tutor to answer, thank you.
Please solve carefully , Important.
HANDWRITTEN. answer 4 5 6 then box the final answers
ıf u solve this Can u solve full please Define the following: Mechanical properties of materials: Strength of material: Ultimate strength: Yield strength: Ductility: Toughness: ıf u solve this Can u solve full please
Question 27 3 7 9 -1 7 8 6 A = 1 9. -1 2 3 | -5 6. 4 -7 3 -2 -3 8. Solve for the determinant of A. Tommo
Choice the correct answer of the following statements: 1. The power transmitted of two pulleys connected by an open belt or crossed belt is a) directly proportional to their diameters; b) inversely proportional to their diameters; proportional to the square of their diameters; c) directly d) inversely proportional to the square of their diameters. 2. Two pulleys of diameters d1 and d2 and at distance x apart are connected by means of an open belt drive. The length of the belt is: a) π/2 (d: + d₂) 2x + (d: + dz)/4x; b) n/2 (d₁-dz) 2x + (di-dz)/4x; c) n/2 (d: +d₂) 2x + (di-d₂}/4x; d) π/2 (d₁-də) 2x + (d: +d₂)²/4x. 3. In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then: a) open belt drive is recommended; b) cross belt drive is recommended; c) both open belt drive and cross belt drive are recommended; d) the drive is recommended depending upon the torque transmitted. 4. Due to not slip of the belt, the power transmitted of the belt drive:…