!Required informationNOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.A3-3rigid tank initially contains saturated water vapor at 300°F. The tank is connected by a valve to a supply line thatcarries steam at 200 psia and 400°F. Now the valve is opened, and steam is allowed to enter the tank. Heat transfer takesplace with the surroundings such that the temperature in the tank remains constant at 300°F at all times. The valve isclosed when it is observed that one-half of the volume of the tank is occupied by liquid water. The properties of water are-6.4663 ft³/lbm, u 1099.8 Btu/lbm, v 0.01745 ft3/lbm, vg-6.4663 ft3/lbm, up 269.51 Btu/lbm, ug=1099.8=Btu/lbm, and h;= 1210.9 Btu/lbm.Determine the final pressure in the tank. (You must provide an answer before moving on to the next part.)The final pressure in the tank is 85.98 psia.HANDWRITTEN FORMAT ALLOWED, PLEASE FOLLOW IT:

Given DataInitial state: The tank contains saturated vapor at 300°F.The tank volume is 3 cubic…

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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! Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A piston-cylinder device contains 0.95 kg of refrigerant-134a at -10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now, heat is transferred to refrigerant-134a until the temperature is 15°C. Use data from the tables. R-134a -10°C Determine the change in the volume of the cylinder of the refrigerant-134a if the specific volume and enthalpy of R-134a at the initial state of 90.4 kPa and -10°C and at the final state of 90.4 kPa and 15°C are as follows: 3 v₁ = 0.2418 m²/kg, h₁ = 247.77 kJ/kg 3 v2 = 0.2670 m³/kg, and h2 = 268.18 kJ/kg The change in the volume of the cylinder is m³. W 0.0252 m
! Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A piston-cylinder device initially contains 1 kg saturated liquid water at 200°C. Now heat is transferred to the water until the volume quadruples and the cylinder contains saturated vapor only. The saturated liquid properties of water at 200°C 3 are vf= 0.001157 m³/kg and uf- 850.46 kJ/kg (Table A-4). Water mkg 200°C Q Determine the final temperature and pressure. (You must provide an answer before moving to the next part) The final temperature is The final pressure is °C. kPa.
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2. The actual specific evaporation of a certain boiler is 10. Factor of evaporation is 1.05. If the heating value of fuel is 30,000 kJ/kg, find the boiler efficiency. 3. Two boilers are operating steadily on 91000 kg of coal contained in a bunker. One boiler is producing 1591 kg of steam per hour at 1.2 factor of evaporation and an efficiency of 65% and another boiler produces 1364 kg of steam per hour at 1.15 factor for evaporation and efficiency of 60%. How many hours will coal in the bunker run the boilers if the heating value of coal is 7590 kcal/kg?
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It is a hot day in Atlanta and you and your friends bought an ice cream maker. The unit consists of a bowl and a base that rotates the bowl around a stationary mixing paddle. The walls of the bowl contain an unknown mixture that absorbs heat from the ice cream. The bowl must be frozen (-20°C) before use. Unfortunately, your friends have lost the instructions and can't remember how long to operate the unit. You tell them not to worry since you have mastered energy conservation problems and can calculate the amount of time required to freeze the ice cream. Looking at the box, you find the specifications for the unit: a) Inner surface area of freezing bowl: 600 cm2; b) Heat transfer coefficient for bowl:h = 0.025 J / (cm2 s .°C); c) Power required to stir the bowl (100% efficiency):25 W; d) Amount of ice cream mixture added: 1 kg; e) The rate of heat transfer is between the bowl and the milk. You know that solutes lower the freezing point of water. Assume that the freezing point is…
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a rigid 3ft ^3 vessel contains R-134 a originally at -20 F and 27.7 percent quality. The refrigerant is then heated until its temperture is 100 F. Calcuate the heat transfer required to do this. Use data from the refrigerant tables. The heat transfer required to heat the refrigerant is _____ Btu.
! Required information Refrigerant-134a enters the condenser of a steady-flow Carnot refrigerator as a saturated vapor at 65.0 psia, and it leaves with a quality of 0.05. The heat absorption from the refrigerated space takes place at a pressure of 30 psia. Determine the quality at the beginning of the heat-absorption process. (Round the final answer to three decimal places.) The quality at the beginning of the heat-absorption process is
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1) A 10 Liter pressure cooker has an operating pressure of 400 kPa. Initially, % of the volume is filled with saturated water and the rest is saturated vapor. What temperature is the vessel? After heating for 5 hours, the pressure cooker ran dry. What was the average rate of heat transfer?
Refrigerant-134a is in an insulated canister with temperature 25 C. There is a partition in the canister so the refrigerant is a saturated liquid and takes up 1/100 of the volume of the canister. The rest of the volume is evacuated. When the canister is activated by squeezing (no work done activating) the partition breaks and the refrigerant fills the total volume. Final pressure is 100 kPa. a.) What are two assumptions needed for the problem? What properties are needed to solve part b.) and c.) b.) What is the change in specific enthalpy within the canister? c.) What is the final quality of the refrigerant within the canister?

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