Question 1- chapter 8 A rigid tank is divided into two equal parts by a partition. One part of the tank contains 3 kg of compressed liquid water at 300 kPa and 95°C and the other side is evacuated. Now the partition is removed, and the water expands to fill the entire tank. If the final pressure in the tank is 50 kPa, determine the exergy destroyed during this process. Assume the surroundings to be at 25°C and 100 kPa.
Question 1- chapter 8 A rigid tank is divided into two equal parts by a partition. One part of the tank contains 3 kg of compressed liquid water at 300 kPa and 95°C and the other side is evacuated. Now the partition is removed, and the water expands to fill the entire tank. If the final pressure in the tank is 50 kPa, determine the exergy destroyed during this process. Assume the surroundings to be at 25°C and 100 kPa.
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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Transcribed Image Text:Question 1- chapter 8
A rigid tank is divided into two equal parts by a partition. One part of the tank contains 3 kg of
compressed liquid water at 300 kPa and 95°C and the other side is evacuated. Now the partition is
removed, and the water expands to fill the entire tank. If the final pressure in the tank is 50 kPa,
determine the exergy destroyed during this process. Assume the surroundings to be at 25°C and
100 kPa.
Question 2 - chapter 9
1
The compression ratio of an ideal dual cycle is 18. Air is at 1 bar and 300 K at the beginning of
compression process and at 2050 K at the end of the heat-addition process. The maximum pressure
is 75 bar. Assume constant specific heats for air at room temperature.
Show the process on a P - v diagram and determine:
2.1
the heat transferred at constant volume,
2.2
the cut-off ration and
2.3
the thermal efficiency of the cycle.
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