Chapter 9, Problem 9.31P

Steam is supplied to a turbine at 600 psia  with 200 F superheated and exhausts to the condenser at 0.7 psia  . Assume the process to be isentropic and use the steam table to find :  a.) The entropy and enthalpy at inlet. b.) The enthalpy and moisture content at exhaust.

C. the steam fiow rate is plant. Kg/hr, find the net power output of the 3. Steam is supplied to a two-stage turbine at 170 bar and 600°C. It expands isentropic ally until it is zero percent moisture. Then it is reheated to 500°C at constant pressure and expanded in the second-stage turbine to the condenser pressure of 0.2 bar. If the isentropic efficiency of the second stage is 80%, calculate the specific steam consumption and thermal efficiency.

A reheat steam cycle has 13500 kPa throttle pressure at the turbine inlet and 2800 kPa reheat pressure. The throttle and reheat temperature of the steam is 540°C. The condenser pressure is 3.4 kPa. Find the cycle thermal efficiency in %. Note: At 13.5 MPa, tsat = 333.88 deg C, s, 3.5921 kJ/kg-K, Sg 5.4022 kJ/kg-K.

regenerative steam turbine has a throttle pressure of 3.8 MPa at 380 °C and a condenser pressure of 0.1 MPa. Steam are extracted at the following ponts: 2 MPa, 1 MPa, and at 0.2 MPa. For the ideal cycle, find the thermal efficiency.

Find the COP of the simple vapor compression refrigeration cycle R-134a. The evaporation temperature is -5 ° C and the condenser temperature is 30 ° C. COP ?

9.86 A refrigeration cycle runs with R-134a having low pressure of 200 kPa and high pressure of 1000 kPa. It cools a cold space at -5°C with a rate of 750 W and the whole system sits in a 27°C room. Find the COP for the cycle and specify all the entropy gen- eration terms by location and rates.

A thermal power plant operates such that the steam exits boiler at 4 MPa, 400C and the condenser pressure is 10 kPa. The efficiency of the turbine and pump is 85% and 90% respectively. a. Draw the plant PFD (Process Flow Disgram) and the process Ts diagram and calculate quality of steam discharge from the turbine as well as the plant's thermal efficiency. b. If the plant produces 300MW of net power, - What is the steam flowrates in kg/hr? - If the plant uses natural gas as a fuel, determine the flowrate of NG in MMSCMD. State the reference for your data. - If the plant uses coal as a fuel, determine the amount of coal required (tonne per annum). State the reference for your data and all your assumptions. c. How much power required by the pump in kW? Is this the real power required by the pump? Explain d. Find the heat rejected in the condenser and evaluate the thermal efficiency using this value. e. The heat rejected to surrounding is through a cooling water system from a nearby ocean.…

A turbine is supplied with steam at 25 BAR, 42C and exhaust into a condenser at 55 KPa. Find the thermal efficiency of the cycle. Draw the schematic and T-S diagrams with corresponding labels. (Clear handwritten and step by step solution)

A reheat steam cycle has 13500 kPa throttle pressure at the turbine inlet and 2800 kPa reheat pressure. The throttle and reheat temperature of the steam is 540°C. The condenser pressure is 3.4 kPa. Find the cycle thermal efficiency in %. Note: At 13.5 MPa, tsat 333.88 deg C, sf = 3.5921 kJ/kg-K, Sg = 5.4022 kJ/kg-K. If the steam table is needed, please use the green book entitled "Thermodynamics Properties of Water Including Vapor, Liquid, and Solid Phases" by Keenan, Keyes, Hill, and Moore.