** Note: As per the Chegg Answering Guidelines, I have solved the
first 4 sub-parts of the Question.
Please Re-post for the Rest
Combined Gas and Steam Power Plant The highest temperature at the inlet of a gas turbine...
A combined gas-steam power plant uses a simple gas turbine for the topping cycle and a simple Rankine cycle for the bottoming cycle. Atmospheric air enters the compressor at 101 kPa and 20 °C, and the maximum gas cycle temperature is 1100 °C. The compressor pressure ratio is 8. The gas stream leaves the heat exchanger at the saturation temperature of the steam flowing through the heat exchanger. Steam enters the heat exchanger at a pressure of 6 MPa and...
A combined cycle power plant consists of two gas turbines; cach produces a net power of 160 MW, and a 70 MW steam power cycle. The combustion of the fuel in the combustion chamber produces hot gases at 1400°C. The hot gases leaving the gas turbines are used to generate steam through the heat recovery steam generator (Boiler). The hot gases enter the heat recovery steam generator at 880°C and leaves at 660°C. Water enters the isentropic pump as saturated...
1. A combined gas-steam power cycle uses a single gas turbine cycle for the air cycle and a simple Rankine cycle for the water vapor cycle. Atmospheric air enters the compressor at a rate of 88.2 lbm / s, at 14.7 psia and 59 ° F, and the maximum gas cycle temperature is 1,742 ° F. The pressure ratio in the compressor is 7. The isentropic efficiency of both the compressor and the turbine is 80%. Gas exits the heat...
Question A.1 A schematic of a gas turbine combined cycle generating plant is shown in Figure A1.1 on the next page. Exhaust gas from the gas turbine generator pass througha heat recovery steam generator (HRSG) which generates steam to drive a steam turbine generator. The following data is provided for the plant: Gas turbine 18.9:1 Pressure ratio Compressor air inlet temperature Turbine inlet temperature 15°C t 273 288 1350°C +273- 1623 588 kg/s T, T3 Exhaust gas mass flow Isentropic...
power plant 3- A combined power plant consisting of a simple open cycle gas turbine unit, using air as the working fluid (neglect fuel mass flow rate), and a steam turbine is to be designed such that the heat rejected at the gas turbine unit is to be utilized to produce steam at the generator for the steam turbine. The exhaust air leaving the generator is at (200 C°). Draw a simple sketch for the plant and the (T-s) diagram...
A power plant using a Rankine power generation cycle and steam operates at a temperature of 80 oC in the condenser, a pressure of 2.5 MPa in the boiler, and a maximum boiler temperature of 700 oC. Draw the two cycles described below on a temperature-entropy diagram for steam, and answer the following questions. a) What is the efficiency of this power plant, assuming the pump and turbine operate adiabatically and reversibly? What is the temperature of the steam leaving...
Steam generated in a power plant at a pressure of 8,600 kPa and temperature of 600°C is fed to a turbine. Exhaust from the turbine enters a condenser at 10 kPa, where it is condensed to saturated liquid, which is then pumped to the boiler. The turbine and the pump in the Rankine cycle operate at 80% and 75% efficiency, respectively. a. Determine the rates of heat transfer in the boiler b.Determine the rate of heat transfer in the condenser...
Section B – combined cycles Overview: a combined gas – steam power cycle in Sweden provides electricity and hot water for heating duties for a small city. The gas turbine drives an electricity generator with an efficiency of 97%. A sub-critical coal fired boiler is used as a heat recovery steam generator, as well as providing additional steam from coal during the winter months. The steam turbine drives an electricity generator with an efficiency of 95%. The plant is located...
A combined cycle gas turbine/vapor power plant uses the turbine exhaust as the energy source for the boiler. Each power system uses a single turbine. The gas power system is modeled as an ideal air-standard Brayton cycle. The vapor power system is modeled as an ideal Rankine cycle. Given specific operating conditions determine the temperature and pressure at each state, the rate of heat transfer in the boiler, the power output of each turbine, and the overall efficiency. --Given Values--...
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...