Determine the change in temperature of the air

Assignment Help Mechanical Engineering
Reference no: EM13719373

A water cooled compressor with air flowing at 0.1 kg/s enters at a temperature of 27C. The compressor work is 5 kW and the heat transfer rate to the water is 2kW. Use air as an ideal gas (Cp = 1.006 kJ/kg-K). Ignore changes in KE and PE.

(c) Write down the first law for the air in the compressor (4 pts).

(d) Determine the change in temperature of the air, in C (7 pts).

(e) If the change in temperature of the water is 10 C and there is no change in the water pressure, determine the flow rate of the water in kg/s., and water as incompressible (Cp = 4.2 kJ/kg-K) (7 pts).

Reference no: EM13719373

Questions Cloud

Discuss symmetric and asymmetric key encryption : A short introduction to SSH, explaining why it is the preferredway of logging into a remotemachine-this explanation will need to discuss symmetric and asymmetric key encryption.
What is the growth rate : Submit a 4- to 5-page paper that addresses the following questions. Be sure to use references within the paper to support your answers. Show work for all calculations. 1. (a.) Suppose real GDP was $13.1 trillion in 2013 and $13.3 in 2014, what..
State the first law and indicate what terms will drop out : Water with a specific volume of 0.001 m3/kg flows through a pipe at 5 kg/sec entering the pipe with an initial velocity of 100 m/sec and exiting at 50 m/sec. The exit of the pipe is 100 m above the inlet. The pipe is well insulated and the power requ..
Explain how it affects the purchase process : Describe the model of consumer buyer behavior. Providing a list of the steps or a graphic of the model is not adequate, as you must explain how the process works in the real world using your own words.
Determine the change in temperature of the air : A water cooled compressor with air flowing at 0.1 kg/s enters at a temperature of 27C. The compressor work is 5 kW and the heat transfer rate to the water is 2kW. Use air as an ideal gas (Cp = 1.006 kJ/kg-K). Ignore changes in KE and PE.
Determine exit temperature of air-rate of entropy production : Air enters the evaporator section of an air-conditioner at 100 kPa, 27oC with a volumetric flow rate of 6 m3 /min. R-134a enters the evaporator at 120 kPa with a quality of 0.3 and rate of 2 kg/min and it leaves as a saturated vapor at the same press..
Determine the axial loads : Determine the axial loads in the stiffeners and the shear flow in each of the skin panels
Graphically demonstrate the inefficiency : Graphically demonstrate the inefficiency that occurs when sports teams produce external benefits. How will a subsidy remedy this problem?
Evaluate the potential for benchmarking of energy : Identify background information of why you chose the particular organisation as it relates to your understanding of managing energy sources

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Imagine a thin cylinder of initial internal diameter do

1. imagine a thin cylinder of initial internal diameter do initial wall thickness to and initial fixed length

  It heat is supplied continuously during the process in

dry saturated steam at 7 bar expands reversibly in a cylinder behind a piston until the pressure is 0.1 bar. it heat is

  Small angular oscillations of bar about the vertical axis

A uniform bar of length l and weight w is suspended symmetrically by two strings, set up the differential equation of motion for small angular oscillations of the bar about the vertical axis, and determine its period.

  Determine the rate of heat transfer through the rod

Consider an aluminium (k = 380 W/m-K) cylindrical rod of 0.15-m-long and 0.05-m-diameter. The top and bottom surfaces of the rod are maintained at constant temperature of 20oC and 95oC, respectively, while the side surface is perfectly insulated. Det..

  Which of the two choices - air with an isentropic

you are to expand a gas adiabatically from 300 psia 400 of to 10 psia in a closed system. which of the two choices -

  A nonwetting metal surface that is at temperature ts -15

a small water droplet of diameter d100 micro meter and temperature tmp 0 deg c falls on a nonwetting metal surface

  What should be the total cross sectional area of the air

the bugatti veyron is the fastest street-legal production car in the world with a top-speed of 431 kmh at such high

  However the pump requires 60 w of parasitic power to

consider a l0-plate fuel cell stack at an anode stoichiometry of 1.2 with 20 a current generated in the stack and a

  The isentropic efficiencies of turbine and compressor are

question1a piston cylinder device contains 25 g of saturated water vapor that is maintained at constant pressure of 300

  Approximate location of the laminar turbulent transition

Find the approximate location of the laminar turbulent transition - what is the net heat removed by the air around the rod?

  Discharge energy by heat transfer to a kitchen at 65f what

an inventor claims to have devised a refrigeration cycle that at steady state requires a net power of .8 hp to remove

  The fluid density p the fluid viscosity u and the distance

the boundary layer thickness g on a smooth flat plate in a incompressible flow without pressure gradient depends on the

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