Determine the electric power required by the heat pump

Assignment Help Mechanical Engineering
Reference no: EM13713245

A heat pump with a coefficient of performance of 3.8 provides energy at an average rate of 75,000 kJ/h to maintain a building at 21oC on a day when the outside temperature is 0oC. If electricity costs 8 cents per kW. h.

Determine the electric power required by the heat pump, in kJ/h.

Determine the daily cost of running the heat pump if the cost of electricity is $0.08 per kW · hr.

Determine the maximum coefficient of performance for the given temperatures.

Determine the minimum theoretical power required by the heat pump, in kJ/h.

Reference no: EM13713245

Questions Cloud

Air enters an automotive supercharger : Air enters an automotive supercharger at 100 kPa and 300 K and is compressed to 150 kPa. the efficiency is 70%. What is the required work input per kg of air?
Diamond shaped airfoil oriented to the oncoming stream : Consider a diamond shaped airfoil oriented to the oncoming stream. Approximate results since the inclination angles are small. All four faces are same length. Angle of attack is 10 deg. According to Newtonian hypersonic theory, Find the numerical val..
What is the electonic field at 9cm from the center : What is the E- field 9cm from the center along the symmetry axis of a charged ring with Q=25nC and R=12cm Let k= 9x109
Developed a power cycle rejecting heat into a cold reservoir : An inventor claims to have developed a power cycle rejecting heat into a cold reservoir at 300 K. If it is claimed that the thermal efficiency is 40%, evaluate the claim if the hot reservoir is at a) 800 K, b) 300 K and c) 600 K.
Determine the electric power required by the heat pump : A heat pump with a coefficient of performance of 3.8 provides energy at an average rate of 75,000 kJ/h to maintain a building at 21oC on a day when the outside temperature is 0oC. If electricity costs 8 cents per kW. h. Determine the electric power r..
Corresponding crank angles and transmission angles : A crank rocker linkage has 100 mm frame, 30 mm crank, 80 mm coupler and 90 mm rocker. Draw the linkage to scale and find the minimum and maximum values of the transmission angle. Also sketch both toggle positions and record the corresponding crank an..
How far from the surface must the other probe be placed : A very long insulating cylinder of charge of radius 2.80cm carries a uniform linear density of 13.0nC/m. If you put one probe of a voltmeter at the surface, how far from the surface must the other probe be placed so that the voltmeter reads 150V.
The modulus of elasticity : A square bar of side 20mm and length 2m is under a tensile load of 400N. Then the Normal stress is _____ MPa and the Maximum Shear stress is _____ Mpa. If the modulus of elasticity is 200GPa, then net deflection of the bar is ______m and the strain i..
Find the initial charge on each sphere : There is two identical, positively charged conducting spheres fixed in space. The spheres are 48.6 cm apart (center to center) and repel each other. find the initial charge on each sphere.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Package design

Package Design Brief: Assume you are the packaging engineer for a large consumer products company. In this company, the Packaging Design Briefs are initiated by the marketing group and forwarded to the Package Engineering group.

  Mechanical engineering questions

Define dynamic viscosity, Determine the centroid, Pressure due to the height of liquid, Advantage of changing the liquid, Calculate the total moment about the hinge of the seal gate.

  Automatic control

DOF system and Find the differential equation describing the system

  Write a paper on boyle''s law

Write a paper on Boyle's law and describe Compression and Combustion stroke . Also explain Charles's law and illustrate SI engine and CI engine.

  Verify the law for parallelogram of forces

To Verify the law for parallelogram of forces, law for triangle of forces and law of polygon of forces. These laws are very useful to calculate unknown forces in very short time.

  Discharge pressure of the compressor

What is the discharge revised discharge pressure of the compressor.

  The Case for Global Accounting Standards

The role of IFRS in both developing and developed capital markets.

  Wind turbine

Wind turbines are becoming more and more common as a method of energy production, wind turbines by their very nature are dynamic and are subject to and create their own internal and external kinematics and kinetics.

  Advanced design methodologies

8 x product engineering and design review (week 2 – 12), ~3 pages per item which must contain a brief description of the product then delve into concepts such as materials selection, manufacturing methods, life cycle analysis, recyclability and overa..

  Design of absorption column and the cooler

Design of absorption column and the cooler. Process design of other units should be completed along with pipe sizes.

  Determine the maximum total bending moment

Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.

  Force of the water on the gate

Determine the magnitude of the horizontal and vertical components of the force of the water on the gate.

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