Leaves at the inlet pressure as saturated vapor

Assignment Help Other Subject
Reference no: EM13300890

A heat pump with R-134a as the working fluid is used to keep a space at 25 deg C by absorbing heat from geothermal water that enters the evaporator at 50 deg C at a rate of 0.065 kg/s and leaves at 40 deg C. The refrigerant enters the evaporator at 20 deg C with a quality of 23 percent and leaves at the inlet pressure as saturated vapor. The refrigerant loses 300 W of heat to the surroundings as it flows through the

compressor and the refrigerant leaves the compressor at 1.4 MPa at the same entropy as the inlet.

Determine

a. the degrees of subcooling of the refrigerant in the condenser,

b. the mass flow rate of the refrigerant,

c. the heating load and the COP of the heat pump, and

d. the theoretical minimum power input to the compressor for the same heating load.

Reference no: EM13300890

Questions Cloud

Ideal vapor-compression refrigeration cycle : A refrigerator uses refrigerant-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. The refrigerant enters the evaporator at 120 kPa with a quality of 30 percent and leaves the..
Customers buying decision process. : Discuss the way Arimountwill address your customers buying decision process.
Determine how much torque is required to stop the wheel : A ten pound car wheel has a moment of inertia of 0.52 kg m2. How much torque is required to stop the wheel in 43.21 s?
Compare and evaluate these different types of income : how would you use the information you have learned in this class to develop your own investment portfolio? What investments would you hold, in what proportions, and why? What is your level of risk aversion?
Leaves at the inlet pressure as saturated vapor : A heat pump with R-134a as the working fluid is used to keep a space at 25 deg C by absorbing heat from geothermal water that enters the evaporator at 50 deg C at a rate of 0.065 kg/s and leaves at 40 deg C. The refrigerant enters the evaporator at 2..
Would real estate investment trust or mortgage real estate : Also, Would real estate investment trust or mortgage real estate investment trusts be a better hedge against high inflation? Why or why not?
Compute the distance from the earth to the moon : a radar pulse travels from the earth to the moon and back in 2.6 seconds. Calculate the distance from the earth to the moon
Find the speed of the chair : A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, Find the speed of the chair
What is the speed of sound in the unkown liquid : A microphone is moving in air towards a stationary source of sound. The detected frequency is 106 Hz greater than the emitted frequency. What is the speed of sound in the unkown liquid

Reviews

Write a Review

Other Subject Questions & Answers

  Importation of any plant material in state-constitutionality

The senators of Delmarva would like to enact a statute banning the importation of any plant material into the state. Although the ban may be burdensome on interstate commerce, the state’s first concern is protecting their income-producing agricult..

  Staff develpoment in a hospital

For a nurse who plans to seek a job in education (staff develpoment in a hospital).

  What open-invoicing and which types businesses use

What is open-invoicing and which types of businesses would use it? Compare it with the balance-forward method. Why wouldn't one or the other suffice for all companies?

  Commonly found major micronutrients

Discuss one of the major micronutrients (vitamin or mineral) other than Carbohydrates, Lipids, Protein, and Fiber? In what foods is this micronutrient commonly found? What are the negative effects if you don't get enough? What if you get too much?

  Political and military policy

What was the United States political and military policy entering the Gulf War and how did these policies change during the course of the war to leave lasting implications?

  Functions of the frontal lobe-temporal lobe-occipital lobe

Describe the functions of the frontal lobe, temporal lobe, occipital lobe, and parietal lobe.  Also, briefly discuss the case of Phineas Gage in terms of which areas of his brain were damaged and the effects of that damage.

  Students work hard in school in order to attain high grades

Some students work hard in school in order to attain high grades. This best illustrates teh importnace of :

  Organizational culture is beneficial

Organizational culture is in many ways beneficial for an organization and its employees but can also be a liability. What do you think are the most significant ways that organizational culture is beneficial? A liability? Be sure to provide specific e..

  Define the elements of the crime of theft

Describe the types of laws that have been passed to assist business owners in dealing with the issues involved in shoplifting situations, and discuss whether or not theft against a retailer is worthy of a police officers time to investigate.

  Physical and philosophical one

Was the creation of the world a physical and/or philosophical one? Was the creation of the world a physical and/or philosophical one?

  Treatment of soft atherosclerotic plaques

Discuss a method which does not involve lasers in the treatment of soft atherosclerotic plaques. I think it has aspirin and lysis?

  Crime control v. due process models

Compare and contrast the U.S. and Englands - Applicable theoretical models, i.e., crime control v. due process models, consensus v. conflict models.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd