Exam 2 MECE 3336 Example2

Provide a complete given and computation. Include all the decimals.   Consider a water-ammonia binary vapor cycle consisting. In the steam cycle, superheated vapor enters the turbine at 7 MPa, 450oC, and saturated liquid exits the condenser at 55oC. The heat rejected from the steam cycle is provided to the ammonia cycle, producing saturated vapor at 45oC, which enters the ammonia turbine. Saturated liquid leaves the ammonia condenser at 1 MPa. For a net power output of 24 MW from the binary cycle, determine  (a) the rate of heat addition to the binary cycle, in MW, and  (b) the thermal efficiency of the binary vapor cycle.

Questions: 1. b. As the power plant engineer, you are asked by the power plant manager to design a new steam-based power plant with a net power output target of 200 MW with a thermal efficiency of 40%. Thermodynamics calculation should be conducted for the known condition illustrated in Figure 1. Boiler P₁ = 8.0 MPa Saturated vapor Condenser Pump Turbine of Vapor and Gas] Cooling water 8.0 MPa 0.008 MPa tw. Saturated liquid at 0.008 MPa Figure 1. Illustration of steam turbine system and its T-S diagram a. Calculate the back work ratio, the system's mass flow rate, and the cooling water's mass flow rate. What kind of efforts should be conducted if the plant manager asks you to increase the system's efficiency to 50% ? Explain and provide proof in the form of calculation! VIOL

Find the rated boiler horsepower, heat added to the boiler, factor of evaporation, developed horsepower, and percentage boiler rating for a water-tube boiler with the following specifications: Heating surface: 18,000 ft?. • Steam produced by boiler: 75,000 lb/hr. • Pressure: 150 psia. • Heat contained in 150 psia steam: 1,194.1 Btu/lb. • Feed-water temperature: 180°F.

Please just solve the questions 4-7   1. 192.8 2. 3181.8 3. 589.1

please anwser task 2

her فرع واحد : he / توك سؤال / Q1/Write a notes on heat balance sheet, draw that on the energy flow and enhance your answers with equations. 2:2 Q2/An indicator diagram taken from a single cylinder four stroke, compression ignition engine has a length of 100/mm and an area of 2045 mm². The indicator pointer deflects a distance of 10 mm for a pressure increment of 2 bar in the cylinder. If the bore and stroke of the engine cylinder are both 100 mm and the engine speed is 900 rev/min, calculate the mean effective pressure and the indicated power. If the mechanical efficiency is 0.75, what is the brake power developed. Draw the indicator diagram. lp or bie 03/A diesel engine develops 5kW. Its indicated thermal efficiency is 0.3 and mechanical efficiency 0.75. Estimate the fuel consumption of engine in (a) Kg/hr (b) liters/hr (c) indicated specific fuel consumption and (d) brake specific fuel consumption. Take heat value of fuel 42000 kJ/Kg and density of fuel 0.87 Kg/liter. n Quiz/(a) A…

Exercise 5 We wan to regulate the temperature of the water heater of a bungalow (ive keep it fixed) at T₂ -333K using the site where it is located: hot outside air at engine pump T₁ = 310k and cold water from A reversible dithermal is used for this purpose, operating between the outside air and the lake, supplying the energy required for a reversible heat operating between the water heater of the bungalow and the lake. Calling Or, the heat transfer received by the engine from the outside air and Q2, the heat transfer actually received by the water heater of the bungalow, determine the thermal efficiency of Such a device! e = 9₂ PH Please answer the above question step-wise, showing detailed Eveverse 6. explanations with diagrons Thanks in advance !!!! If necessar a lake at T3 2 285K. ecessory.

QUESTION 4 How much heat was removed in the condenser? Round your answer to the nearest whole number. QUESTION 5 What is the net work produced, in kJ/kg. Round your answer to the nearest whole number. QUESTION 6 What is the thermal efficiency of the cycle as a percentage (number between 0 and 100). Report your answer to one decimal place using rounding.