Air flows through a refrigeration cycle consisting

Assignment Help Mechanical Engineering
Reference no: EM13718958

Air flows through a refrigeration cycle consisting of three processes: Process 1-2 is an isothermal expansion from a pressure of 6.25 bar; Process 2-3 is an adiabatic compression to a temperature of 550 K and a pressure of 6.25 bar; Process 3-1 is a constant pressure cooling. (a) Determine the temperature at state 1. (b) Determine the coefficient of performance of the cycle. Hint: Process 1-2 is the heat input from the cold state process for the cycle.

Reference no: EM13718958

Questions Cloud

Construct the phase diagram for hypothetical metals : Construct the phase diagram for hypothetical metals A and B, between 20°C (room temperature) and 700°C, given the following information: the maximum solubility of B in A is 4wt% B, occurring at 420°C; an intermetallic compound, AB, exists at 30wt%B; ..
Minimum entropy change of thermal energy reservoir supplying : A Rigid, 85-L steam cooker is arranged with a pressure relief valve set to release vapor and maintain the pressure once the pressure inside the cooker reaches 200 kPa. Initially, this cooker is filled with water at 200 kPa with a quality of 8 percent..
Feature differences between forged parts and casted parts : List the feature differences between forged parts and casted parts. Why is control of the volume of the blank important in closed-die forging? Why are there so many types of forging machines available? Describe the capabilities and limitations of eac..
Calculate the equivalent sand grain roughness of the pipe : An experimentalist measures a head loss of 331mm in a 2530 mm length of 35mm pipe. the average velocity is 1.760 m/s. calculate the friction factor. if the fluid is water at 50c, calculate the equivalent sand grain roughness of the pipe. Knowing that..
Air flows through a refrigeration cycle consisting : Air flows through a refrigeration cycle consisting of three processes: Process 1-2 is an isothermal expansion from a pressure of 6.25 bar; Process 2-3 is an adiabatic compression to a temperature of 550 K and a pressure of 6.25 bar;
Conducted through a smooth tube between two reservoirs : In a process, 10000 lb/hr of distilled water at 70F is conducted through a smooth tube between 2 reservoirs 30 ft apart and having a difference in elevation of 4 ft. What size tubing is needed?
Viscosity and specific weight : Assume that 2 cfs of oil (viscosity 0.16P and specific weight of 54 lb/ft3) is pumped through a 12 inch pipeline of cast iron. If each pump produces 80 psi, how far apart can they be placed?
Determine the temperature of refrigerant exiting compressor : Refrigerant R134a is compressed under steady conditions from a saturated vapour at 100 kPa to 500 kPa. The compressor’s isentropic efficiency is 85%. Heat losses from the compressor can be ignored, as can kinetic energy and potential energy effects.
Determine the heat required for the carnot engine : A reversed Carnot engine provides 200kw of heating at 350K while operating between 350K and 280K. A carnot engine operating between 900 K and 300 K provides the power for heating. Determine the heat required for the Carnot engine.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  A circular tube of outer diameter 5 cm and inner diameter 4

a circular tube of outer diameter 5 cm and inner diameter 4 cm is used to convey hot fluid. the inner surface of the

  It supplies heat to a room at a rate of 46000 btuhr in

a heat pump has a second law efficiency of of 74. it supplies heat to a room at a rate of 46000 btuhr in order to

  Determine the force exerted by the catapult

A steam powered catapult on an aircraft carrier sends a 60,000-lb aircraft 250 feet, from zero to 180 mph. Assuming that the acceleration is constant, A) determine the time for taxing. B) Determine the acceleration of the aircraft. C) Determine the f..

  Determine the weight of a part having the same modulus of

a titanium alloy with a modulus of elasticity of 16 x 106 psi is used to make a 1000 lb part for a manned space

  The heat transfer rate from the working fluid passing

a refrigeration system using r-22 as the working fluid has condenser and evaporator pressures of 250 psi and 30 psi

  A four cylinder 24 liter engine operates on a four stroke

a four cylinder 2.4 liter engine operates on a four stroke cycle at 3200 rpm. the compression ratio is 9.41 the

  Weight are removed so that the gas expands according to the

the cylinder-piston arrangement contains carbon dioxide at 300kpa and 200 degrees celsius and the volume 0.2m3. weight

  A 40kn axial load is applied to a short wooden post that is

a 40kn axial load is applied to a short wooden post that is supported by a concrete footing resting on undisturbed

  Calculate the flowrate throught this pipeline and nozzle

calculate the flowrate throught this pipeline and nozzle assuming no frictional energy losses i.e. ideal. calculate the

  The compressor to compress the gas

A compressor is employed to compress gas flowing steadily through it . The gas enters the compressor at a temperature of 16°C, a pressure of 100 kPa, and with an enthalpy of 391.2 kJ/kg. The gas leaves the compressor at a temperature of 245°C, a pres..

  Hypothetical element has an atomic weight

A hypothetical element has an atomic weight of 91.6 g/mol, a density of 9.60 g/cm3, and an atomic radius of 0.137 nm. Determine whether its crystal structure is FCC, BCC, or simple cubic.

  Determine the mass flow rate

(a) Draw and label a schematic of the system. (b) Determine the mass flow rate (kg/s) of water vapor neededand (c) the rate of exergy destruction (kW)

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