in compression in a Brayton cycle inter cooling is used to reduce the specific volume ,...
in compression in a brayton cycle, intercooling is used to reduce the specific volume, what happens to specific volume in reheat and is this desirable? explain
13. Consider an air-standard Brayton cycle having 3 stages of compression with intercooling, a regenerator, and 3 stages of expansion with reheat. Draw a T-s diagram assuming isentropic compression and expansion, perfect regeneration, inlet temperatures to the 3 compressors equal to the low temperature sink, and inlet temperatures to the 3 turbines equal to the high temperature source. Now consider the limit of infinite stages of compression with intercooling, perfect regeneration, and infinite stages of expansion with reheat. Draw a...
please solve by exact analysis Problem 1 A Brayton-cycle power plant takes in air at 100 kPa and 26.7°C. Compression in two stages with intercooling, and each stage has a pressure ratio of 2.38 and an efficiency of 84%, with intercooling to 26.7°C The maximum temperature of the cycle is 676.7°C Turbine efficiency is 82%. The turbine and compressor are assumed adiabatic. A regenerator heats the compressed air to 326.7°C before sending it to the combustor. Calculate (a) the back...
A simple ideal Brayton cycle without regenera- tion is modified to incorporate multistage compression with intercooling and multistage expansion with reheating, without changing the pressure or temperature limits of the cycle. As a result of these two modifications, (a) Does the net work output increase, decrease, or remain the same? (b) Does the back work ratio increase, decrease, or remain the same? (c) Does the thermal efficiency increase, decrease, or remain the same? (d) Does the heat rejected increase, decrease,...
Combined cycle power plants are common because of their high efficiency and scalability. They typically combine a gas turbine cycle (the Brayton Cycle) with a steam turbine cycle (the Rankine Cycle) [1]. The goal of this project is to determine the operating efficiency and profitability of a realistic combined cycle power plant. The power plant is as follows: 1. A natural gas-fired Brayton cycle with mÛ air,Br = 1.25 kg s−1 . (a) Ambient air at 1 bar and 300...
Process Combuster Compressor ip Compressor Turbine 10 Intercooler Figure 1 shows a typical Brayton power cycle with inter-cooling Air enters the compressor at 98 kPa and 24 °C. Compression is done in two stages with inter-cooling between the stages. The compressor has an isentropic efficiency of 87% The gas exits the combustor at 490 kPa and 850 °C. The turbine has an isentropic efficiency of 95%. A gas stream with a temperature of 950 "C, recovered from another process, is...
Thermodynamics 2 Brayton Cycle neering History Watch Gotham (201 Watch The walking Watch House ofCar 01Cabral.p 錯 °Keeffe-and-Phan Group Solving Problem A two stage compressor with intercooling between the stages is used to compress air from 1 bar and 150C to 9 bar in a Gas-Turbine cycle . The high pressure turbine drives the compressor whereas low pressure turbine is coupled with an electrical generator. The compresson and turbine efficiencies are 85%; 75%, respectively Heat is added to the compressed...
in Problem II: The Brayton cycle is an idealized gas turbine power cycle that can be modeled through the four reversible steady flow devices shown in the diagram. Use air as the working fluid with variable specific heats. Heat If the thermal source is at 700°C, and the thermal sink is at 35℃ what is the maximum thermal efficiency for a cycle operating between these two thermal reservoirs? (5 pts) A. CompressorTurbine B. In the real cycle, air enters the...
A 10-kJ/s cooling load is to be served by operating an ideal vapor-compression refrigeration cycle with its'evaporator at 0.4 MPa and its condenser at 0.8 MPa. Calculate the refrigerant mass flow rate and the compressor power requirement when refrigerant-134a is used.
An aircraft engine operates on a simple ideal Brayton cycle with a pressure ratio of 12. The temperature of the air at the beginning of the compression process is 0°C. Heat is added to the cycle at a rate of 500 KW and air passes through the engine at a rate of 1 kg/s. Determine the net power produced by this engine, in kW. (Apply cold-air-standard assumptions: constant specific heat)