Chapter 6, Problem 6.71P

Q.34

2. thermodynamics

K2 please help with my reviewer. Provide me the full solution and answer thank you SN=40

1. A. Using the Steam Tables, determine the amount of cooling water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47 % moisture, mass flow rate= 7200+ (X/SN) kg/hr. Cooling water enters the condenser at 12 deg C and leaves at 21 deg C. Answer: B. Draw the schematic diagram of the condenser and process in the PV and TS diagrams below. Cp H20 = 4.187 KJ/(kg-K): Schematic diagram of heat exchanger =condenser S 2. Use only the MD below to solve this Item; use it by plotting data and process to determine items being asked. Steam enters a turbine at 117.4308 atmgage and 932 deg. F, and expands isentropicaly to 177.17 inches of Hg. For 2 + (X/SN) kg/sec of steam, what is (a) the ideal work done (KI/sec) if AKE = 0 and actual exhaust enthalpy is 2700 KI/kg. a)Ans: (b)ne =_ (c)Determine: (e) Actual steam temp ideal steam moisture at exhaust. Ans: at the exhaust. Ans. g) change in entropy during the actual process. Ans 3000 2500 2000…

Step by step solution and answer please thank youu

C4 1.

An air-conditioning system is shown in the figure below in which air flows over tubes carrying Refrigerant 134a. Air enters with a volumetric flow rate of (AV)1 = 190 m/min at 32°C, 1 bar, and exits at 22°C, 0.95 bar. Refrigerant enters the tubes at 5 bar with a quality of 20% and exits at 5 bar, 20°C. Air P1 = 1 bar T = 32°C = 305 K (AV), 3 Refrigerant 134a R-134a P3 = 5 bar X3 = 0.20 4 R-134a P4 = 5 bar T = 20°C Air 2+P2 = 0.95 bar T2 = 22°C = 295 K Ignoring heat transfer at the outer surface of the air conditioner, and neglecting kinetic and potential energy effects, determine at steady state: (a) the mass flow rate of the refrigerant, in kg/min. (b) the rate of heat transfer, in kJ/min, to the air from the refrigerant.

An AC with a heat transfer rate of 55000 BTU/HR from air @14.7 psia and 95 degrees F, with rate of 1500 ft3/min. Refrigerant 134a is used and evaporates at a constant pressure of 50 psia from compressed liquid conditions, 30F, to exit temperature of 50 F. For air, Cp=0.24 Btu/lbm-R and Rair=53.3 ft-lbf/lbm-R; Determine the mass-flow-rate of liquid refrigerant required and the exit temperature of the air. Sorry for the missing info

state T(C) P(bar) V(cm^3/g) H(KJ/Kg) S(KJ/kgK) 1(initial)           2(after throttle)           3(after cooling)           4(after compressor)           fill out the number in the table