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A steam power plant employs two adiabatic turbines in series. Steam enters the first turbine at 923.15 K (650°C) and 7000 kPa and discharges from the second turbine at 20 kPa. The system is designed for equal power outputs from the two turbines, based on a turbine efficiency of 78% for each turbine. Determine the temperature and pressure of the steam in its intermediate state between the two turbines. What is the overall efficiency of the two turbines together with respect to isentropic expansion of the steam from the initial to the final state?
A standard vapor compression cycle uses tetrafluoroethane as the refrigerant. The refrigerant at the exit of the condenser is saturated liquid at 90 °F; at the exit of the evaporator it is saturated vapor at 0 °F. The cycle is powered by a compres..
Question - 22 25 tons of caustic solution having 10 % concentration was fed to an evaporator . the concentrated liquor leaving the evaporator contains 50% NaOH , 2 % Nacl and 48 % H2O .
It should be noted that none of those who dismiss MM are experts in the field. They may work in chemistry, biotechnology, or other nanoscale sciences or technologies, but are not sufficiently familiar with MM theory to critique it meaningfully.
Calculate the concentration of all ions present in each of the following solutions of strong electrolytes. a. 0.0200 mol of sodium phosphate in 10.0 mL of solution b. 0.300 mol of barium nitrate in 600.0 mL of solution
1 kg of liquid water, initially at 40 °C, 2 bar, is heated under constant pressure. If the amount of heat added is 1200 kJ, determine the final temperature and the phase of the system in the final state (if vapor-liquid mixture, report the mass fr..
A condenser is required to condense n-propanol vapour leaving the top of adistillation column. The n-propanol is essentially pure, and is a saturated vapourat a pressure of 2.1 bara. The condensate needs to be sub-cooled to 45ŽC.Design a horizonta..
Problem Statement: Derive the equation for S* for competitive product inhibiton. Definition of variables:
The resistance of a ther mistor with a ß = 5500 measured at 188C is equal to 250 V. Find the temperature of the thermistor when the resistance is doubled.
What is the maximum possible power that could be produced by a plant given the temperatures of the furnace and the river?
A polymer is produced by the emulsion polymerization of acrylonitrile and methyl methacrylate in a stirred vessel. The monomers and an aqueous solution of catalyst are fed to the polymerization reactor continuously. The product is withdrawn from t..
Use the masses given in the following table to calculate the change in energy when 1 mol of 232Pu nuclei and 1 mol of 231Pa nuclei are each formed from their respective number of protons and neutrons.
Determine the energy and entropy balances and compare the efficiency of this process to the simple vapor-compression cycle without recirculation.
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