2. IN ARANKINE CYCLE, SATURATED LIQUID WATER AT 1 BAR IS COMPRESSED ADIABATICALLY TO 150BAR. FIRST BY HEATING IN THE BOILER AND SUPERHEATING AT CONSTANT PRESSURE OF 150 BAR, THE WATER SUBSTANCE IS BROUGHT TO 750x. AFTER ADIABATIC REVERSIBLE EXPANSION IN A TURBINE TO 1 BAR, IT IS THEN COOLED IN A CONDENSER TO SATURATED LIQUID, WHAT IS THE THERMAL EFFICEINCY OF THE CYCLE?

3. 13 shown in the diagram, with state properties as specified in the table. Ignore kinetic and potential energy effects. a. 5 Sketch this cycle on a T-s diagram (label all states). b. Label each process (such as pump, condenser, etc.) on the T-s diagram. 5 Determine the work from the high- Consider a Rankine cycle with reheat as Reheat section Low-pressure turbine Žin High- pressure turbine с. pressure turbine per mass flow rate, in Btu/lb. Steam generator d.10] Determine the thermal efficiency of the cycle. Find the isentropic turbine efficiency for the high-pressure turbine. Oout Condenser е. Pump W, Pressure Temperature (°F) Enthalpy (Btu/lb) Entropy (Btu/lb-°R) State Quality (psi) Superheated 1 1400 1300 1669.6 1.7192 steam Superheated 100 600 1329.3 1.7582 steam Superheated 3 100 900 1480.5 1.8838 steam 1 1 101.7 1105.8 1.9779 1 101.7 69.74 0.1327 Compressed liquid 6. 1400 101.7 73.918 0.1327 4.

SU-2 A gas at 500K is in a cylinder with a frictionless piston. The gas goes thru a reversible cycle during which it absorbs 400J from a reservoir at 500K. During part of the cycle the gas rejects heat Q to a reseroir at 300K. Let the system be defined as the gas. a) What is the change in entropy for the system for one cycle of operation of the engine? Briefly explain your answer. b) Find the change in entropy for the universe for one cycle of operation of the engine. Briefly explain your answer. c) Find the change in entropy for the surroundings for one cycle of operation of the engine. Briefly explain your answer. d) Use your results from the previous parts to find how many joules of heat were rejected to the 300K reservoir during this process.

1. Steam at 10 MPa, 500°C has an ideal engine turbine that has one stage of reheat, K] exhaust is at 0.005 MPa and 85% quality. The work produced by the engine is 800 kg. Determine the thermal efficiency of the turbine.

A piston/cylinder arrangement initially contains air at 150 kPa, 400°C. The setup is allowed to cool to the ambient temperature of 20°C. a. Is the piston resting on the stops in the final state? What is the final pressure in the cylinder? b. What is the specific work done by the air during this process?

Find the following: a.Steam temperature in degree celsius b.entropy of steam at the turbine in exit in kJ/kg c. Entropy of saturated liquid at condenser temperature in kJ/kg d. Sfg in kJ/kgK at condenser temperature. e.hf at condenser temperature f. hfg at the condenser temperature g. Specific volume of the condensate h. Quality of the steam at the turbine exit

In an absorption type refrigerator, the heat is supplied to NH, generator by condensing steam at 2 bar and 90% dry. The temperature in the refrigerator is to be maintained at-5° C. Find the maximum C.O.P. possible. If the refrigeration load is 20 tonnes and actual C.O.P. is 70% of the maximum C.O.P.. find the mass of steam required per hour. Take temperature of the atmosphere as 30° C.

Thermodynamics Please clear writing! Take your time all I want is the correct answer

I have been working on this problem for a while but I need to figure out how to get the specific enthalpy when the refridgerant exits the system to find the mass flow rate of when the refridgerant exits the system but I don't know how to do this

3. A water-tube boiler having a heating surface of 325.23 m² evaporates 6349.21 kg of water in an hour from a feed temperature of 66 °C. Boiler pressure is at 1.04 MPaa and the steam quality at the boiler outlet is 99 %. What percent of its rated Bo. Hp was the boiler developing?