Chapter 7, Problem 7.148EP

Cogeneration is often used where a steam supply is needed for industrial process energy. Assume a supply of 5 kg/s steam at 0.5 MPa is needed. Rather than generating this from a pump and boiler, the setup in below. is used so the supply is extracted from the high-pressure turbine. Find the power the turbine now cogenerates in this process. 2 3 HP LP

2.A steam throttling valve with inlet conditions of 2MPA and 400C is connected to the inlet of the turbine. The turbine has 200kW power output and heat abstracted of 100kW. If the mass flow rate is 1kg/s and the exit temperature of steam is 300C, find the exit turbine pressure.

In the open-circuit steam plant, boiler feed water at atmospheric pressure 1 bar and 35oC is pumped into an oil-fired boiler which produces dry-saturated steam at 10 bar. This steam enters a steam turbine and is expanded isentropic ally to atmospheric pressure and freely discharged into the atmosphere. Find The thermal efficiency of the plant. The work ratio The specific steam consumption

At 10kPa pressure and dryness degree x=0.90, the steam coming out of the turbine goes to the pump with adiabatic efficiency of 0.85 after condensing in the condenser. The pump sends the condensed water to the steam boiler with a working pressure of 8MPa. a) Find the h.T values ​​of the inlet points of the condenser, pump and boiler  b) Since the flow rate of the condensed water is 9000 kg/h, find the load of the condenser  c) Find the power of the pump

An electric power plant operating on the Carnot cycle puts heat into a river with a water temperature of (15 °C), what must be the maximum temperature that the working material puts forward in the plant to be efficient (40%), and if it is required to produce a capacity (20MW), what is the quantity rejected and Additive heat per unit time.

9.13 A steam power plant should produce 10 MW net work. Steam flows at 5 MPa, 500°C to the turbine which has a condenser exit at 50°C. Find the mass flow rate of steam needed. 9.14 For the previous problem find all the specific work and heat transfer terms and the cycle efficiency.

Concentrating solar power plants are frequently located in desert areas where they can collect a lot of solar energy. If the power plant produces steam at a temperature of 1,016 oF and is cooled with ambient air at a temperature of 106 oF what is the maximum efficiency of the conversion of solar energy to electricity? Give your answer in percent (%).

A cortain diesel engine consume 100 liters for 262.5 kw - hr produced. ,echanical efficiency is 80% and generator efficiency is 93%. if the fuel oil used has a gravity of 25 apl. find the thermal efficiency based on indicated power

A certain power plant produces a net power output of 120 MW. The constant pressure condenser operates at 8 kPa and the constant pressure boiler operates at 1 MPa. The steam enters the turbine, which operates at 88% efficiency at 600°C, and the water leaving the condenser at 8kPa enters the 72% efficient pump. Find: a) mass flow rate in kg/hr of the working fluid, b) heat suplied to the boiler in kJ/hr, c) heat rejected to the condenser in kJ/hr;   I want a personalized answer so please do not copy from other's work. I need it ASAP