Q3: For system shown in Figure, Determine final temperature if R= 0.297 kPa-m' and ep = 1.04 kJkg-K. Nitogen 0.2A 2-20 Kpa 120 V Heat Lons -25 k
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Q: Q3: For system shown in Figure, Determine final temperature if R= 0.297 kPa m' and cp = 1.04…
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Q: Q3: For system shown in Figure, Determine final temperature if R= 0.297 kPa-m' and cp = 1.04 kJkg K.…
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- An electric windshield defroster is used to remove 0.25-in of ice from a windshield. The properties of the ice are Tsat = 328F, uif = hif = 144 Btu/lbm, and v = 0.01602 ft3/lbm. Determine the electrical energy required per square foot of windshield surface area to melt this ice and remove it as liquid water at 328F. What is the minimum temperature at which the defroster may be operated? Assume that no heat is transferred from the defroster or ice to the surroundings.determine the entr0py change 0f 1.5 moIes 0f amm0nia that is heated fr0m 180°Cto750°C. The system 0perates at an atmospheric pressure on a steady fIow process.Initial condition: T = 300CsaturatedProcess: IsothermalFinal condition: s = 6.3 KJ/Kg-K Required: Final pressure
- Q3: For sysem shown in Figure, Determine final temperature if R= 0297 KPam’ and cp = 1.04 Kikg:An assembly of piston cylinder system shown in Figure Q1 had 1 MPa pressure and 400°Ctemperature. The system is cooled to 250°C at a constant pressure and mass of the steam is 0.8 kg. (a) Determine the compression work. (b) If the stopper position is at 40% of the initial volume determine the temperature when thepiston immediately touches the stopper and discuss on the nature of the vapor.1. Moist air enters a refrigeration coil at 89 F dry-bulb temperature and 65 F thermodynamic wet bulb temperature at a rate of 14oo cu ft per min. The surface temperature of the coil is 55 F . If 3.5 tons of refrigeration are available, find the dry bulb and wet bulb temperatures of the air leaving the coil. Assume sea level pressure.
- A piston cylinder device is fitted with stops at the top. Initially.5lbs of R-134a is in the tank at 80F. A heater is turned on that delivers a total of 26.5248 Btus of energy to it. When it is done delivering that the pistons just hits the stops and is a saturated vapor. Further energy is added until the pressure doubles (round to nearest 100's). Determine the total heat transfer, initial volume and the final temperature of the refrigerant. For this question, I uploaded images of all the information related to Refrigerant R-134a in case you need them to answer the question. Thank you!Find the amount of ice (gram) at - 5.00 Celsius that is needed to cool a mixture of 0.200 kg substance A and 0.300 kg substance B from 18.0 Celsius to 12.0 CelsiusWhat refrigeration capacity in TOR is required to cool 2000 cfm of air from 85°F to 70°F? If the specific heat ratio (k) and specific gas constant (R) of air are 1.4 and 0.28708 kJ/kg-K, respectively.
- An office to be air conditioned for 50 staff when the outdoor conditions are 30°cDBT and 75% RH if the quantity of air supplied is 0.4m3/min/per find i) Capacity of cooling coil ii) capacity of heating coil iii) amount of water vapourremoved per hour. Assume that required air inlet conditions are 20°c DBT and 60% RH air is conditioned first by cooling and dehumidifying and by heating. Ifthe heating coil surface temperature is 25°c, find the bye pass factor of the heating coil.Initial condition: P = 0.7 MPaT = 250oCm = 5 kgProcess: IsobaricFinal condition: vapor = 3.5 kgRequired: HeatA piston-cylinder with 25 grams of saturated water within. Is kept at a pressure of 300 kpa. A heater inside supplies We,in =7.2kJ while the cylinder loses 3.7 kJ of heat. Show that the boundary Wb and the change in internal energy ∆U in this problem can be combined to form ∆H anf find the final temperatire in Celsius.