Accounting for variation of specific heats with temperature

Assignment Help Mechanical Engineering
Reference no: EM13704545

An air-standard Diesel cycle has a compression ratio of 18.2. Air is at 27°C and 100 kpa at the beginning of the compression process and at 1700 K at the end of the heat-addition process.

Accounting for the variation of specific heats with temperature, determine

(a) The cut off ratio,

(b) The heat rejection per unit mass, and

 

(c) The thermal efficiency

Reference no: EM13704545

Questions Cloud

Pitot-tube equation to determine the actual wind speed : A meteorologist uses a pitot -static tube to measure the wind speed in a tornado. Based on the damage caused by the storm, the tornado is rated as EF5 on the enhanced Fujita Scale. This means that the wind speed is estimated to be in the range of 261..
Compression processes in piston-cylinder devices : During some actual expansion and compression processes in piston-cylinder devices, the gases have been observed to satisfy the relationship PVn= C, where n and C are constants. Calculate the work done when a gas expands from 350 kPa and 0.03 m3 to a ..
Saturated water vapor : Five kilogram of saturated water vapor at 300 kPa is heated at constant pressure until its temperature reaches 200 oC. Calculate the work done by the steam during this process.
A cylindrical tank of diameter : A cylindrical tank of diameter 1 m has a well-rounded orifice of diameter 2 cm in its base. How long will it take an initial depth of acetone equal to 2 m to drain completely from the tank? How long would it take if the orifice were sharp-edged? If n..
Accounting for variation of specific heats with temperature : An air-standard Diesel cycle has a compression ratio of 18.2. Air is at 27°C and 100 kpa at the beginning of the compression process and at 1700 K at the end of the heat-addition process.
Consider an electric motor with shaft power output : Consider an electric motor with shaft power output of 20kW and an efficiency of 88%. Determine the rate at which the motor dissipates heat to the room it is in when the motor operates at full load. In winter, this room is normally heated by a 2-kW re..
Energy is required to melt cubic inch from room temperature : Given the melting point of steel to be approximately 1500 C, how much energy is required to melt a cubic inch from room temperature? How much water would this amount of energy raise by 10o C from room temperature?
Design a hollow steel shaft to transmit : Design a hollow steel shaft to transmit 225 kw of power at 80 rpm without exceeding a shearing stress of 60 MPa. Consider only torsion and assume that there are no stress concentrations. Make the ratio of the outside diameter to the inside diameter t..
Two-phase liquid-vapor mixture of refrigerant : A tank contains a two-phase liquid-vapor mixture of Refrigerant 22 at 10 bar. The mass of saturated liquid in the tank is 25 kg and the quality is 60%. Determine the volume of the tank, in m^3, and the fraction of the total volume occupied by saturat..

Reviews

Write a Review

 

Mechanical Engineering Questions & Answers

  Consider an ocean thermal energy conversion power plant in

consider an ocean thermal energy conversion power plant in hawaii designed to operate between temperature limits of

  Calculate adiabatic flame temperature butane burning

Calculate adiabatic flame temperature butane (C4H10) burning in air at 298 k and 1 atm, assuming complete combustion and constant specific heats.

  What decrease or increase in speed is required so that the

a small satellite is orbiting around the earth at altutude 300kma what is the tangential speed of the sattelite to

  Based on the above conditions determine the error when the

a pressure transducer that behaves as a second order system is used to monitor pressure fluctuations in a petrochemical

  You are considering two pipes to connect liquid leaving a

you are considering two pipes to connect liquid leaving a pump to the entrance to a reactor. for a given mass flowrate

  Saturated water vapor in a closed sysytem is condensed by

saturated water vapor in a closed sysytem is condensed by cooling it at constant pressure to a saturated liquid at

  Consider an accelerometer with a natural frequency of 800

consider an accelerometer with a natural frequency of 800 hz and a damping ratio of 0.6. determine the frequency range

  At the channel outlet the velocity distribution is given by

water enters a wide flat channel of height 2h with a uniform velocity of u 5 ms. at the channel outlet the velocity

  A column is made of a material with a yield stress of 50

a pinroller supports resist . rotation displacement rotation and displacement none of the aboveb inflection points

  Determine the amount of heat transfer q that must be done

a mass of m .24kg of steam is contained in a closed cylindrical container is compressed by a piston from initial

  The power output of a steam turbine is 30 mw determine the

the power output of a steam turbine is 30 mw. determine the rate of steam flow in the turbine for saturated steam

  The flash chamber operates adiabatically and kinetic and

consider a flash chamber operating at steady state as shown in the figure below. refrigerant 134a enters the chamber at

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