Determine the heat supplied to the air in the heat

Assignment Help Mechanical Engineering
Reference no: EM13643959

Air from inside a house enters a steady-flow heat exchanger with a volume flow rate of 200 m3/min at 15°C, 100kPa and eaves the heat exchanger at 35°C. This heat exchanger is located inside the air handler of a house heat pump system and receives heat from the heat pump. The heat pump receives heat from air outside the house that acts as a heat source at 10°C. Assume air has constant specific heats evaluated at 300K. (a) Determine the heat supplied to the air in the heat exchanger Q. H, in kW. (b) Assuming the air in the heat exchanger acts as a heat sink having an average temperature of 25°C, determine the minimum power supplied to the heat pump, in kW.

Reference no: EM13643959

Questions Cloud

At one instant of time the first particle with a charge of : two charged particles are moving with equal velocities of 8.70 ms in the x-direction. at one instant of time the first
In a chemcial analysis of a chromium alloy all of the : in a chemcial analysis of a chromium alloy all of the chromium is first converted to chromate ions. a 50ml sample of
You throw a ball horizontally off of a building with a : you throw a ball horizontally off of a building with a horizontal velocity of 5ms. what is the balls horizontal
As a 20-kg object moves from 2 i 5 jm to 6 i - 2 jm the : as a 2.0-kg object moves from 2 i 5 jm to 6 i - 2 jm the constant resultant force acting on it is equal to 4 i - 3 jn.
Determine the heat supplied to the air in the heat : air from inside a house enters a steady-flow heat exchanger with a volume flow rate of 200 m3min at 15degc 100kpa and
If the frequency of the siren relative to the polive car is : a truck moving at 80mihr passes a police car moving 100mihr headed in the opposite direction. if the frequency of the
Prove that the process is irreversible in modeling this : an egg initially at rest is dropped onto a concrete surface it breaks. prove that the process is irreversible. in
What is the rpm of the fan three seconds after it is turned : the angular acceleration of a fan blade once the fan is turned on is found to be 15 t12 for the first five seconds. a
A car approaches a stationary police car at 80mihr the : a car approaches a stationary police car at 80mihr. the frequency of the siren relative to the police car is 500 hz.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Determine the heat transfer through the rod

A steel rod 1 cm in diameter and 30 cm long protrudes from a steel surface at 150 C. The rod is surrounded by air at 10 C with a convective heat transfer coefficient of 10 W/m2 C. The thermal conductivity of steel is 114 W/m C. Determine the heat ..

  The surface area of the tubes is 45 m2 and the overall heat

steam in a counter flow condenser of a steam power plant is to be condensed at a temperature of 30c with cooling water

  Calculate the reynolds number for water dynamic viscosity

calculate the reynolds number for water dynamic viscosity of 7.98 10-4 nsm2 flowing through a rectangular pipe 4 cm

  A reversible power cycle receives enery qh from a hot

a reversible power cycle receives enery qh from a hot reservoir at th and rejects enerfy qc by heat transfer to a cold

  Calculate the energy of vacancy formation in silver given

calculate the energy of vacancy formation in silver given that the equilibrium number of vacancies at 800 degc 1073k is

  The prizes are all the same so the order in which the

at a certain event 16 people attend and 5 will be chosen at random to receive door prizes. the prizes are all the

  What is the water heat capacity 42 kjkg flow rate in order

a tube-and-shell heat exchanger with two shell passes and four tube passes the overall tea transfer coefficient is 700

  The pressure inside the cylinder is held constant at 300

a mass of 15 kg of air in a piston-cylinder device is heated from 25 to 77 degrees celcius by passing current through a

  The reynolds number for the flow is 40 determine the flow

fully developed laminar flow occurs between two horizantal parralel plates. the distance between the plates is 0.25

  Determine with the correct number of significant fiugres a

an engineering student measures an ambient lab pressure and temperature of 405.35 in. h2o and 70.5 f respectively and

  Monkey b is climbing up with a constant speed of 38 ftsec

three monkeys a b and c weighing 23 23 and 20 lb respectively are climbing up and down the rope suspended from d. at

  A furnace is shaped like along semicylindrical duct of

a furnace is shaped like along semicylindrical duct of diameter 15 ft. the base and the dome of the furnace have

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