H1. A stack gas containing 71.9% N2, 10% CO2 and 18.1% CO is passed through a turbine. This gas stream flows at 500 m3 STP/min and cools from 1000°C to 500°C. a. How much shaft work is done if the rate of heat removal from the turbine is 2000 kW? b. What was the flow rate of air (m3/s) to the combustor if the air was fed at 50°C and 6 atm? c. What is the theoretical amount (mol/s) of air required for the combustor? d. Generally excess air is used. Why?

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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H1. A stack gas containing 71.9% N2, 10% CO2 and 18.1% CO is passed through a turbine. This gas stream flows at 500 m3 STP/min and cools from 1000°C to 500°C. a. How much shaft work is done if the rate of heat removal from the turbine is 2000 kW? b. What was the flow rate of air (m3/s) to the combustor if the air was fed at 50°C and 6 atm? c. What is the theoretical amount (mol/s) of air required for the combustor? d. Generally excess air is used. Why?
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