As shown in the figure below, a jacketed container is used to cool the process stream. Some information is given for this process; (i) The volume of liquid inside the tank, V and the volume of refrigerant in the jacket, VJ, are constant. The volumetric flow rate qF is constant. But qJ changes over time. (ii) the heat transfer coefficients through the jacketed container are negligible. (iii) the tank contents and jacket contents are well mixed and have significant heat capacitances. (iv) the thermal capacitances of the tank wall and jacket wall are negligible. (v) The overall heat transfer coefficient used for heat conduction between the tank liquid and the coolant varies with the coolant flow rate: U = K.qJ0,8 Here, U (Btu / hr.ft2.0F), qJ (ft3 / hr), K (constant)

The heat engine shown in the figure uses 2.0 mol of a monatomic gas as the working substance. (Figure 1) Figure p (kPa) 600 400 200 0 0 ہے۔ 0.025 0.050 -V (m³) 1 of 1 Part A Determine T₁, T2, and T3. Enter your answers numerically separated by commas. Express your answer using two significant figures. T₁, T₂, T3 = Submit Request Answer Part B 17 ΑΣΦ AEth: Ws, Q = Submit Determine AEth, Ws, and Q for 1-2. Enter your answers numerically separated by commas. Express your answer using two significant figures. [VD ΑΣΦ ? Request Answer K ? J

As shown in the figure below, Refrigerant 134a is contained in a piston-cylinder assembly, initially as saturated vapor. The refrigerant is slowly heated until its temperature is 155°C. During the process, the piston moves smoothly in the cylinder. For the refrigerant, evaluate the work, in kJ/kg. W/m = i kJ/kg. Patm = 1 bar Piston Refrigerant 134a imma - Weight=471.1 N D = 0.02 m Initial: Saturated vapor Final: T₂

Mc Graw Hill It is commonly recommended that hot foods be cooled first to room temperature by simply waiting a while before they are put into the refrigerator to save energy. Despite this commonsense recommendation, a person keeps cooking a large pan of stew three times a week and putting the pan into the refrigerator while it is still hot, thinking that the money saved is probably too little. But he says he can be convinced if you can show that the money saved is significant. The average mass of the pan and its contents is 5 kg. The average temperature of the kitchen is 23°C, and the average temperature of the food is 95°C when it is taken off the stove. The refrigerated space is maintained at 3°C, and the average specific heat of the food and the pan can be taken to be 3.9 kJ/kg-°C. If the refrigerator has a coefficient of performance of 1.5 and the cost of electricity is $0.165/kWh, determine how much this person will save a year by waiting for the food to cool to room temperature…

Evaluate and compare the work and heat transfer when 0.75 kg of air, at a pressure of 1.5 barand a temperature of 27 °C, expands in a closed thermodynamic system to three times itsinitial volume (i) according to Boyle’s law and (ii) according to Charles’ law.The characteristic gas constant for air is 287 Jkg-1K-1 and its specific heat capacity at constantvolume is 718 Jkg-1K-1.   Explain the differences in the answers to the two techniques.

Hot and cold liquid water are sent through a mixing chamber. The device is not insulated and the water exiting is warmer than the cold water entering. Which terms in the energy equation are not zero? (Click all that apply) Qin Win Qout Wout V Emi - Eme O APE O AKE O AEsys

Analyse an operational industrial thermodynamic system in terms of work done, from firstprincipals. Include a p-v diagram to aid in your explanation.

You are asked to assess the validity of a power-generating device. The device supposedly operates steadily by receiving 256 kW via heat transfer at 4.5 °C, receiving 370 kW via heat transfer at 115 °C, and rejecting 200 kW via heat transfer at -180 °C. The device generates electrical power in response to these various heat transfers. a. determine its electrical power output, in kW. b. Is the device feasible? Does it violate 1st and/or 2nd law of thermodynamics?

Explain the concept of specific heat capacity in thermodynamics and its significance in understanding heat transfer and temperature changes in engineering applications.

Please state the assumptions and tables.