ou are involved In the process to disinfect water by using chlorine gas, it is important to produce the gas within the company plant location. The process that is used to produce chlorine gas involves the electrolysis of NaCl to produce chlorine gas at the anode and hydrogen gas at the cathode, then the chlorine gas is used to disinfect the water while the hydrogen gas is vented to the atmosphere. The rate of hydrogen production is 10 m³/day, the calorific value of H2 is an industry to find solution of the following situation: 130000 kJ/kg, p=0.09 g/L. You are involved in investigating two alternatives: I. Hydrogen is collected, introduced to hydrogen engine to produce work. Then this work is used to produce electricity. II. Hydrogen is stored and used directly to produce electricity by hydrogen fuel cell Calculate the efficiency of the first alternative (conversion of heat to work) for energy absorption at the combustion temperature of 500 °C and energy rejection to the cold
ou are involved In the process to disinfect water by using chlorine gas, it is important to produce the gas within the company plant location. The process that is used to produce chlorine gas involves the electrolysis of NaCl to produce chlorine gas at the anode and hydrogen gas at the cathode, then the chlorine gas is used to disinfect the water while the hydrogen gas is vented to the atmosphere. The rate of hydrogen production is 10 m³/day, the calorific value of H2 is an industry to find solution of the following situation: 130000 kJ/kg, p=0.09 g/L. You are involved in investigating two alternatives: I. Hydrogen is collected, introduced to hydrogen engine to produce work. Then this work is used to produce electricity. II. Hydrogen is stored and used directly to produce electricity by hydrogen fuel cell Calculate the efficiency of the first alternative (conversion of heat to work) for energy absorption at the combustion temperature of 500 °C and energy rejection to the cold
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:1. You are involved in an industry to find solution of the following situation:
In the process to disinfect water by using chlorine gas, it is important to produce the gas
within the company plant location. The process that is used to produce chlorine gas involves
the electrolysis of NaCl to produce chlorine gas at the anode and hydrogen gas at the
cathode, then the chlorine gas is used to disinfect the water while the hydrogen gas is vented
to the atmosphere. The rate of hydrogen production is 10 m³/day, the calorific value of Hz, is
130000 kJ/kg, p=0.09 g/L.
You are involved in investigating two alternatives:
I. Hydrogen is collected, introduced to hydrogen engine to produce work. Then this work
is used to produce electricity.
II. Hydrogen is stored and used directly to produce electricity by hydrogen fuel cell
(a) Calculate the efficiency of the first alternative (conversion of heat to work) for energy
absorption at the combustion temperature of 500 °C and energy rejection to the cold
reservoir temperature at 150 °C.
(b) Calculate the amount of work generated by the first alternative (assume the conversion of
work to electricity is 100%)
(c) Obtain the efficiency of conversion of hydrogen to electricity by hydrogen fuel cell form any
reference
(d) Compare both efficiencies
(e) Recommend a process to the industry
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