Where do the highest energy losses .3 take place in power plants using gas and steam turbines? (multiple choice, one answer) In the combustion boiler or chamber, because of combustion inefficiency Everywhere through mechanical losses due to friction In the air compressor and water O pumps In the turbine itself when gas or O steam energy is converted to rotor movement

A steam turbine installation of 60 MW capacity has steam entering turbine at 7 MPa, 500oC with steam bleeding at 2 MPa and 0.2 MPa for feed heating. Remaining steam at 2 MPa is reheated upto 480oC. Steam finally leaves turbine at 36 mm Hg (absolute). Give layout, mass fraction of steam bled out per kg of steam generated, cycle efficiency and mass flow rate of steam entering turbine.

Can you please help me with question 3

iii) the exit area of the nozzle. Take Cp = 1.005 kJ/kg-K and R=287 J/kg-K Q.B3. A heat engine operates between two reservoirs at 400°C and 30°C. Half the power produced by the heat engine is used to drive a Carnot heat pump that removes heat from the cold surroundings at 2°C and transfers it to a house maintained at 27°C. The heat engine is absorbing heat at a rate of 5 kJ/s. i) Draw the complete schematic of the device ii) Determine the thermal efficiency of the heat engine iii) Determine the coefficient of performance of the heat pump iv) Determine the rate of heat loss from the house. v) Determine the minimum rate of heat extraction by the heat pump, and vi) the total rate of heat rejection.

Explain in detail why we need superheated steam in a power generating plant and use T-S diagrams to support your explanation.

Only solve last 2 parts ok Problem 2 – Heat Pump Thermodynamic Analysis Refrigerant-134a enters the condenser of a residential heat pump at 800 kPa and 50°C at a rate of 35 L/min and leaves at 750 kPa subcooled by 3°C. The refrigerant enters the compressor at 200 kPa superheated by 3°C. Neglecting changes in kinetic and potential energy and any stray heat transfer, please answer the following.a. Create a schematic of the cycle, use the same numbers used in your textbook for the inlet and exit states of each device, and include the energy exchanges between the cycle devices and the surroundings.b. Sketch the cycle processes on a T-s diagram.c. Determine the isentropic efficiency of the compressor.d. Compute the rate of heat supplied to the heated room.e. Determine the COP of the heat pump.

write legibly pls A simple gas-turbine operates with air as the working fluid, a pressure ratio of 18:1 and a maximum temperature of 700°C. The air enters the compressor at 100kPa and 20°C. Determine: a. Thermal Efficiency of the cycleb. The heat addedc. The state of the air exhausted by the turbine

High-P turbine Low-P turbine Reheater 4 Boiler P4 = P3 = Prcheat Pump Condenser The following data was given for a steam Click Save and Submit to save and submit. Click Save All Answers to save all answers. The following data was given for a steam power plant operating on the ideal reheat Rankine cycle. 3-4: Inlet steam at 17.5 MPa and 600 6-1: inlet steam at a pressure of 11.16 kPa at a wetness fraction of 0.1. At state 1, the specific volume is 0.00101 m³/kg 3 Find the dryness fraction of steam at state 6 to 1 decimal places.

Prob-2 In a Rankine cycle steam power plant 0.9 MW energy is taken out in the condenser, 0.63 MW power is taken out in the turbine, and the pump work is 0.03 MW. (a) Find the plant thermal efficiency. (b) if cycle is reversed, consider turbine is a compressor; condenser is an evaporator; find the COP of the air-conditioning system. QH QL WI

Power generation using steam is one of the most common method which can be found around the world. In these type of power plants, steam goes through a basic thermodynamic cycle called Rankine cycle which is shown in the following figure. Steam flow Boiler Qin Pump Wout Win Condenser •Qout For the proper operation of the cycle, water should be pumped to the boiler using pump which required work input (Wm) generate steam and then high pressure steam is fed to the turbine. By extracting the energy from high pressure steam, turbine is producing work output (Wout). Because of this, the steam pressure is reduced and low pressure steam is flowing into the condenser. Condenser removes heat energy from steam further (Qout) and steam is converted into liquid water. The liquid water can be pumped into the boiler again and the cycle continues. Performance of a Ranking cycle can be evaluated by using thermal efficiency (nth)which is determined from; the cycle. Heat energy should be supplied to the…