M30029 Advanced Thermodynamics and Fluid Mechanics Coursework Brief 2024-25 | UoP

M30029 Coursework Brief

The numerical values in this coursework are based on your student number. Your student number is a six- or seven-digit code UP QWERTYZ. In the assignment below, you should replace letters Q, W, E, R, T, Y, Z with digits from your student number. If any of the numbers are 0, please use the subsequent number in the QWERTYZ order. 

You are an energy engineer required to assess the performance of a combined cycle gas turbine (CCGT) system, shown in Figure 1 below, and offer recommendations on how the system can be upgraded and improved. 

CCGT Parameters 
The topping cycle is a simple gas turbine with a compression ratio of Q. 
The efficiency of the compressor is 8W %. 
Max temperature across the gas cycle is 1400 K. 
Efficiency of the gas turbine is 8Y% %. 

Exhaust from the gas turbine is directed to the heat recovery steam generator (HRSG) where it is used to heat the water to the superheated steam state. 

The mass flow rate of water is R0 kg/s, and the pinch point is 1E K. 

The calorific value of the fuel is 50 MJ/kg. 
The bottoming cycle is a simple Rankine cycle with the condenser pressure of 0.1 bar. 
Steam enters the high-pressure turbine at 7T bar and 4W0 °C. 
The efficiency of the steam turbine is 8R %. 
The efficiency of the water pump is 9E% %. 

The system is expected to deliver 1W0 MW of power. 

a)Evaluate the performance of the system. 
Find the mass flow rate of air, fuel and steam 
Clearly state the power output from gas and steam turbines, and the power required for the water pump and air compressor. 

b)Based on the analysis in part (a), offer recommendations on how the cycle performance can be improved by adjusting the cycle parameters. Evaluate the performance of the improved system. 

c)Consider changes in cycle design that could lead to further enhancement in performance. Design changes may include upgrades and the introduction of new components and processes in both topping and bottoming cycles. Suggest operational parameters of new components and evaluate the performance of the upgraded system. 

Note that the gas cycle, HRSG and steam cycle should be analysed holistically.