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2) In an oil-gas turbine installation, air is taken at pressure of 1 bar and 27°C and compressed to a pressure of 4 bar. The oil with a calorific value of 42,000 kJ/kg is burnt in the combustion chamber to raise the temperature of air to 550°C. If the air flows at the rate of 1.2 kg/s; find the net power of the installation. Also find the air-fuel ratio. Take Cp = 1.05 kJ/kg K.

2) In an oil-gas turbine installation, air is taken at pressure of 1 bar and 27°C and compressed to a pressure of 4 bar. The oil with a calorific value of 42,000 kJ/kg is burnt in the combustion chamber to raise the temperature of air to 550°C. If the air flows at the rate of 1.2 kg/s; find the net power of the installation. Also find the air-fuel ratio. Take Cp = 1.05 kJ/kg K.

Introduction to Chemical Engineering Thermodynamics
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
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In an oil turbine installation , air is taken at pressure of 1 bar and and 27 C and compressed to a pressure of 4 bar., The oil with a calorific value of 42000kg..

 

2) In an oil-gas turbine installation, air is taken at pressure of 1 bar and 27°C and compressed to a pressure of 4 bar. The oil with a calorific value of 42,000 kJ/kg is burnt in the combustion chamber to raise the temperature of air to 550°C. If the air flows at the rate of 1.2 kg/s; find the net power of the installation. Also find the air-fuel ratio. Take Cp = 1.05 kJ/kg K. [Hint: Determine the mass of fuel burnt by dividing the heat supplied to air by the calorific value of fuel. Air-fuel ratio is the ratio of mass of air to the mass of fuel. Mass of fuel burnt per second = (Heat supplied to air/ Calorific value of fuel) Air-fuel ratio = (Mass of air/ Mass of fuel)]
Transcribed Image Text:2) In an oil-gas turbine installation, air is taken at pressure of 1 bar and 27°C and compressed to a pressure of 4 bar. The oil with a calorific value of 42,000 kJ/kg is burnt in the combustion chamber to raise the temperature of air to 550°C. If the air flows at the rate of 1.2 kg/s; find the net power of the installation. Also find the air-fuel ratio. Take Cp = 1.05 kJ/kg K. [Hint: Determine the mass of fuel burnt by dividing the heat supplied to air by the calorific value of fuel. Air-fuel ratio is the ratio of mass of air to the mass of fuel. Mass of fuel burnt per second = (Heat supplied to air/ Calorific value of fuel) Air-fuel ratio = (Mass of air/ Mass of fuel)]
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