QuestionA gas turbine engine operates on the simple Brayton cycle withregeneration, as shown in figure below. Air enters the compressor of thisunit at 100 kPa and 27 °C. The compressor pressure ratio is 6 and hotgases enters the turbine at 800 °C. The isentropic efficiencies of thecompressor and the turbine are 85% and 90%, respectively. Pressurelosses across the combustion chamber was found to be 0.1 bar. If themass flow rate of air is 100 kg/s and LCV of fuel is 42000 kJ/kg,determine the following:1- The power output (in MW);2- The regenerator effectiveness;3- A/F ratio;4- Thermal efficiency;5- The specific fuel consumption.k)Take: For air: Yair = 1.4 and Cpar = 1.005kg. K%3DFor gas: Ygas = 1.333 and CpakJ= 1.135kg. KHeat exchangerT-Ts 15 °CwwComb.CompressorTurbine©TT

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Answered: 1- The power output (in MW); 2- The…

Engineering

Mechanical Engineering

1- The power output (in MW); 2- The regenerator effectiveness; 3- A/F ratio;

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

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Steam enters the turbine of a vapor power plant at 600 lbf/in.², 1000°F and exits as a two-phase liquid-vapor mixture at 90°F. Condensate exits the condenser at 85°F and is pumped to 600 lbf/in.² The turbine and pump isentropic efficiencies are 90 and 80%, respectively. The net power developed is 1 MW. Determine: (a) the percent steam quality at the turbine exit. (b) the percent thermal efficiency. (c) the steam mass flow rate, in lb/h.
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