For the binary cycle shown, the enthalpies are h1 - 3,185 kJ/kg: h2-2,206 kJ/kg; h3 - 178 kJ/kg: h4 - 184 kJ/kg: ha - 358 kJ/kg: hb 274 kJ/kg: hc-112 kJ/kg: and hd 113 kJ/kg. The mass flow rate in the topping cycle is 2.8 kg/s. What is the heat transfer in the condenser? Express your answer in kW.

For the binary cycle shown, the enthalpies are h1 - 3,185 kJ/kg: h2-2,206 kJ/kg; h3 - 178 kJ/kg: h4 - 184 kJ/kg: ha - 358 kJ/kg: hb 274 kJ/kg: hc-112 kJ/kg: and hd 113 kJ/kg. The mass flow rate in the topping cycle is 2.8 kg/s. What is the heat transfer in the condenser? Express your answer in kW.

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

See similar textbooks

Similar questions

As a result of heat transfer to the surroundings during a constant-pressure process, 0.375 kg of steam ina frictionless piston-cylinder assembly experiences a decrease in entropy of 2.75 kJ/kgK. The initialtemperature and pressure of the steam are 700 C and 1.6 MPa, respectively, and the process isinternally reversible. Calculate the work and the heat transfer for this process and the total entropychange (Tsur. = 27 C).
2 kg of air as an ideal gas undergoes a Carnot refrigeration cycle as shown in the figure. The isothermal expansion occurs at 300K and isothermal compression occurs at 600K. The heat transfer to air during isothermal expansion is 125 kJ. Pressure at the end of isothermal expansion is 75 kPa. | 4 TH 3 1 Determine the entropy change at each step of the cycle. Determine the entropy change during the cycle Indicate which process (if any) is isentropic in this cycle.
A 50-Kg block of iron casting at 500K is thrown into a large lake that is at a temperature of 285K. The iron block eventually reaches thermal equilibrium with the lake water. Assuming an average specific heat of 0.45 kJ/Kg-K for the iron, the entropy generation during the process is: A. 12.65 kJ/K B. 16.97 kJ/K C. 4.32 kJ/K D. 29.62 kJ/K
A gas initially at 2000 L/kg is compressed polytropically in an Engine. During the process, the final temperature is 1.3 times initial temperature and the final pressure is 6 times the initial pressure. The compression ratio is, a 4.62 b 4.82 c 4.12 d 4.22 A gas initially at 850 mm Hg is compressed polytropically in an Engine. During the process, the final temperature is 1.5 times initial temperature and the final volume is one-third of initial volume. The final pressure is, a 5.03 b 6.03 c 4.03 d 7.03 0.45 kg gas is compressed polytropically in an Engine from 2 kg/cm2, 1 m3/kg to 5 kg/cm2 0.5 m3/kg. The nonflow work of compression is,
A scientist is observing a boiler wherein steam generated at 204.44 F using 11.02 lbs of water a 27°C. The operating pressure is vented to the atmosphere. Determine the change in entropy if the cp of steam is given by: cp = R (3.5+ 1.2T+0.14T²) J/kg-K a. 13.45 BTU/F b. 213.45 BTU/F c. 87.23 kJ/K d. 168.23 kJ/K
In a cycle, a 4kg ideal gas(MW=3g/mol and k=2.3) confined in a controlled mass system went through three processes.the gas was started at 20kPa and 310K in the first process, and it was isometrically increased by 30kPa. The gas subject to 400Kusing a process defined by PV^3=C.It returns to its original state polytropically.Calculate the entropy change for each process.
Air (Rair = 0.287 ) as an ideal gas flows through the turbine and heat exchanger arrangement kg-K, shown below. Steady-state data are given on the figure. Stray heat transfer and kinetic and potential energy effects can be ignored. Sketch a T - s diagram of processes 1-4 and determine: (a) The entropy production of turbine 1 [3.2 kW /K] (b) The isentropic efficiency of turbine 1 [75%] (c) The exit temperature of turbine 2 if its isentropic efficiency is nr, = 0.85 [960 K] (d) The entropy production within the intermediate heat exchanger [3.2 kW/K] W1 = 10,000 kW Wn= ? Turbine Turbine P3= 4.5 bar T3 = ? T = 1100 K P2=5 bar P4 = 1 bar Air wwww www 2 4 T = 1400 K Pi = 20 bar Ts = 1480 K 5 Ps = 1.35 bar ms = 1200 kg/min Heat exchanger V T = 1200 K P6 =1 bar %3D Air in
18. 1.34 kg gas (R = 0.189 kJ/kg K, k = 1.288) in a Tank initially at 70°C is stirred by a paddle. During constant volume process, there is 102 kJ of heat rejected and there is increase in entropy of 0.66 kJ/K. The paddle work is, a - 438 b 445 C 438 d-445
Steam at 4 MPa and 400?C is throttled adiabatically through a partially open valve to a pressure of 1 MPa. If changes in kinetic energy and potential energy are negligible, the specific volume of the steam after throttling will be: 0.3749 m3/kg O0.5165 m3/kg 0.2327 m3/kg O0.2952 m3/kg O0.3066 m3/kg
Methane (k = 1.321) is compressed adiabatically in a two-stage, double acting reciprocating compressor which is driven by a motor at 165 rpm. The Low-pressure cylinder (30.5 cm x 35.5 cm) receives 6.86 m /min at 96.53 kPa, 43.3•C, and the High-pressure cylinder (20.3 cm x 35.5 cm) discharges methane at 717.06 kPa. The mechanical efficiency is 78%. Find the Kw of motor
Exafmple 8.4. Heat flows from a hot reservoir at 800 K to another reservoir at 250 K. If entre chánge of the hot reservoir is- 4 kJ/K, determine the entropy change of the cold reservor
Air goes through a Brayton cycle gas turbine, entering the compressor at 11 °C and 108 kPa. When it reaches the turbine inlet, the air is at 1,061 °C and 1.23 MPa. What is the net change in specific enthalpy of the working fluid after going through the compressor and heat addition processes? You may assume that the specific heat capacity c, is a constant 1.005 --1. kJ-kg 1.K1 throughout the whole cycle. Give your answer in kJ-kg1 to one decimal place.