Methane is compressed in two-stage, double-acting compressor which is electrically driven at 165 rpm. The low pressure cylinder (30.5 x 35.5 cm) receives 6.86 cu m per minute of air at 96.53 kPa, 43.30C, and the high pressure cylinder (20.3 x 35.5 cm) discharges the methane at 717.06 kPa. The isothermal overall efficiency is 74%. Find n and the kW output of the motor.Ans: 80.02%, 90.86% 7. Methane is compressed in two-stage, double-acting compressor which is electrically driven at165 rpm. The low pressure cylinder (30.5 x 35.5 cm) receives 6.86 cu m per minute of air at96.53 kPa, 43.30C, and the high pressure cylinder (20.3 x 35.5 cm) discharges the methaneat 717.06 kPa. The isothermal overall efficiency is 74%. Find n and the kW output of themotor.ANS: 80.02%, 90.86%

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Answered: Methane is compressed in two-stage,…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Methane is compressed in two-stage, double-acting compressor which is electrically driven at 165 rpm. The low pressure cylinder (30.5 x 35.5 cm) receives 6.86 cu m per minute of air at 96.53 kPa, 43.30C, and the high pressure cylinder (20.3 x 35.5 cm) discharges the methane at 717.06 kPa. The isothermal overall efficiency is 74%. Find n and the kW output of the motor.

Ans: 80.02%, 90.86%

7. Methane is compressed in two-stage, double-acting compressor which is electrically driven at
165 rpm. The low pressure cylinder (30.5 x 35.5 cm) receives 6.86 cu m per minute of air at
96.53 kPa, 43.30C, and the high pressure cylinder (20.3 x 35.5 cm) discharges the methane
at 717.06 kPa. The isothermal overall efficiency is 74%. Find n and the kW output of the
motor.
ANS: 80.02%, 90.86%

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