Explore BrainMass
Share

Explore BrainMass

    Energy Analysis Of Closed Piston Systems

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    A mass of 15 kg of air in a piston-cylinder device is heated from 25 to 77 degrees Celsius by passing current through a resistance heater inside the cylinder. The pressure inside the cylinder is held constant at 300 kPa during the process, and a heat loss of 1.0 kJ occurs. Determine the electric energy supplied, in kWh.

    Answer: 0.235 kWh.

    See attachment for diagram.

    © BrainMass Inc. brainmass.com October 9, 2019, 6:43 pm ad1c9bdddf
    https://brainmass.com/engineering/mechanical-engineering/95820

    Attachments

    Solution Summary

    This solution contains step-by-step calculations to determine electric energy supplied using the heat used in heating the air, constant pressure, and heat lost. All equations and workings are shown.

    $2.19