Calculate the net heat flow and the overall change

Assignment Help Mechanical Engineering
Reference no: EM13212564

1 kg of air is allowed to expand reversibly in a cylinder behind a piston in such a way that the temperature remains constant at 260 degree while the volume is doubled.The piston is then move in,and heat is rejected bt the air reversibly at constant pressure until the volume is the same as it was initially.Calculate the net heat flow and the overall change of entropy.sketch the process of p-V and T-s diagram.

Reference no: EM13212564

Questions Cloud

Determine the thermal efficiency : At the end of the isothermalexpansion, the pressure is 600 kPa and the volume is 0.4 m3. Assuming the ideal gas model for air, determine the thermal efficiency.
Calculate eco s current cost of preferred stock : Calculate Eco s current after-tax cost of long-term debt, calculate Eco s current cost of preferred stock
Determine the force required to pull the wedge out : A 9º wedge is inserted using a force of 1000 lbs. The static coefficient of friction between the wedge and the log is 0.50. Determine the force required to pull the wedge out.
Calculate the rocket power : rocket boosts the speed of a spacecraft from 7500 m/s to 10 500 m/s with a thrust of 890 kN. Calculate the rocket power.
Calculate the net heat flow and the overall change : The piston is then move in,and heat is rejected bt the air reversibly at constant pressure until the volume is the same as it was initially.Calculate the net heat flow and the overall change of entropy.sketch the process of p-V and T-s diagram.
Current market rate expressed on an annual basis : What should the per share value of the company's common stock be and what is the current market rate expressed on an annual basis?
Determine the initial discharge rate of water : The tank air pressure above the water level is 300kPa(absolute) while the atmospheric pressure is 100kPA. Neglecting frictional effects, determine the initial discharge rate of water from the tank.(Density of water=1000kg/m^3)
Determine the surface temperature of the component : A 0.4 W cylindrical electronic component with a diameter of 0.3 cm and length 1.8 cm is mounted horizontally on a circuit board. To cool the component air is flowing across the board at a velocity of 150 m/min. If the air temperature is T∞= 45°C, ..
Determine be naturak frequency of the system : A 0,5Kg mass attached linear spring suffress 01 N/m. Determine be naturak frequency of the system in hortz e reapert this calculation for a mass of 50Kg and a suffress of 10N/m and compare your result to that of part.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Determine the failure envelope and the non-failure region

Determine the failure envelope and the non-failure region in the sigma_y - tau_xy plane using Tsai-Hill theory for the following cases

  Probabilistic hough transform in big o notation

Probabilistic Hough transform in big O notation

  Explain aeronautical engineering module - mechanics

High school Yr 12 aeronautical Engineering Module - mechanics, PLease help- i seem to get the incorrect answer but didn't know where i have gone wrong?

  Pumps and heat recovery

Energy in the home, personal energy use and home energy efficiency. Efficient use of ‘waste' heat and renewable heat sources.

  Explain equation of an elastic curve

Equation of an elastic curve, Given the equation of the elastic curve for a simply supported beam, how would you obtain the slope in the beam, since the equations are related?

  A bullet is fired horizontally into a wood block resting

A bullet is fired horizontally into a wood block resting on a horizontal, frictionless surface. If the mass of the bullet is 0.02 Kg and the velocity is 600 m/s

  Determine the expressions for the principal stresses

A circular shaft is subjected to a torque Ta and a bending moment Ma. Assuming that the diameter of the shaft is d, determine the expressions for the principal stresses and maximum shear stress in terms of Ma, Ta and d.

  Find the compression ratio

Find the compression ratio, cutoff ratio, the thermal efficiency, the mean effective pressure, and the P -v and T-s diagrams clearly showing all corners.

  Explain an ideal vapor-compression refrigeration cycle

An ideal vapor-compression refrigeration cycle uses R-134a as the working fluid in an air-conditioning system. The refrigerant enters the compressor as a saturated vapor at 40 °F

  Carbon fibre reinforced polymers

Carbon fibre reinforced polymers (CFRP have been used extensively in aerospace applications due to their excellent strength to weight and stiffness to weight properties.

  Determine the heat transfer characteristics

To determine the heat transfer characteristics of a cylinder under cross flow conditions when the cylinder is isolated.

  Define the temperature of the water drops

The temperature of the water drops to 260 F as a result of heat transfer to the surroundings. Determine the final pressure in the tank?

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