Determine Thermal Efficiency, Work ratio, Pressure ratio of Gas Turbine Power Plant

I will solve Some problems of simple gas turbine power plant with the students during this power plant engineering lecture. This lecture on Gas Turbine Power Plant includes:
1) Calculation of thermal efficiency in gas turbine power plant
2) Calculation of work ratio of gas turbine power plant
3) Calculation of pressure ratio in gas turbine power plant

Condition of Maximum Work done in Brayton Cycle, Maximum Efficiency, work Ratio and Air Rate for simple gas Turbine

 

In this lecture on Power Plant engineering you will Learn: (1) Condition of maximum work (2) Joule cycle Maximum Thermal Efficiency derivation (3) Work Ratio of Gas Turbine: It is the ratio of net work produced by the plant to the turbine work. The work ratio represents the amount of net work generated by the gas turbine plant per unit turbine work output. The work ratio increases with an increase in turbine inlet temperature, a decrease in compressor inlet temperature, and a decrease in the pressure ratio of the cycle. the compressor inlet temperature is always atmospheric temperature particularly in the open cycle and turbine inlet temperature is limited by metallurgical consideration. The highest temperature ever used for a gas turbine power plant is about 1000 k. (4) Air rate: The size of the gas turbine plant is dependent upon the rate of air flow in relation to net output work. Compact gas turbine plant has a lower value of air rate. Air rate is expressed as kg of air per kWhr.
(1) Condition of maximum work
(2) Joule cycle Maximum Thermal Efficiency derivation
(3) Work Ratio of Gas Turbine: It is the ratio of net work produced by the plant to the turbine work. The work ratio represents the amount of net work generated by the gas turbine plant per unit turbine work output. The work ratio increases with an increase in turbine inlet temperature, a decrease in compressor inlet temperature, and a decrease in the pressure ratio of the cycle. the compressor inlet temperature is always atmospheric temperature particularly in the open cycle and turbine inlet temperature is limited by metallurgical consideration. The highest temperature ever used for a gas turbine power plant is about 1000 k. (4) Air rate: The size of the gas turbine plant is dependent upon the rate of air flow in relation to net output work. Compact gas turbine plant has a lower value of air rate. Air rate is expressed as kg of air per kWhr.