Carbon dioxide enters a compressor at T;=276 K and P1=100 kPa with a mass flow rate of 0.37 kg/s. The pressure ratio and the isentropic efficiency of the compressor is 6.1 and 91%, respectively. As shown in figure, carbon dioxide leaving the compressor is cooled to T3=342 K by a liquid water in a heat exchanger. If the inlet and outlet temperatures of the cooling water are T4=20°C and T3=29°C respectively, calculate the required mass flow rate of cooling water, in kg/s. Properties of CO2: Cy=0.895 kJ/(kgK), C,=0.706 kJ/(kgK), R=0.1889 kJ/(kgK), k=1.268 Properties of water: C,=4.178 kJ/(kg°C) Cooling water CO2 of Heat exchanger Compressor

Carbon dioxide enters a compressor at T;=276 K and P1=100 kPa with a mass flow rate of 0.37 kg/s. The pressure ratio and the isentropic efficiency of the compressor is 6.1 and 91%, respectively. As shown in figure, carbon dioxide leaving the compressor is cooled to T3=342 K by a liquid water in a heat exchanger. If the inlet and outlet temperatures of the cooling water are T4=20°C and T3=29°C respectively, calculate the required mass flow rate of cooling water, in kg/s. Properties of CO2: Cy=0.895 kJ/(kgK), C,=0.706 kJ/(kgK), R=0.1889 kJ/(kgK), k=1.268 Properties of water: C,=4.178 kJ/(kg°C) Cooling water CO2 of Heat exchanger Compressor

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

1. thermodynamics
Explain the concept of system reliability and its significance in engineering applications.
Please answer these 2 questions
* Your answer is incorrect. A piston-cylinder assembly contains 0.7 lb of propane. The propane expands from an initial state where p₁ = 60 lbf/in.² and T₁ = 70°F to a final state where p₂ = 10 lbf/in.² During the process, the pressure and specific volume are related by pv² = constant. Determine the energy transfer by work, in Btu. W = i 3.123 Btu
Each of the following statements describes a way of coping with temperature variation. Which scenario most likely includes positive heat transfer through convection? That is, in which scenario does Hconvection most likely have a positive (+) sign? Hanimal = +SR + IRin – IRout +/- Hconvection +/- Hconduction - Hevaporation + Hmetabolic Select one: a. A rabbit basking in the sun early in the morning. b. A lizard resting in the shade in a hot desert in the middle of the day. c. A bumblebee vibrating its flight muscles before flight. d. A ground squirrel hibernating in the winter. e. A bird fluffing its feathers on a cold day.
QUESTION 51 The following processes occurs in a reversible thermodynamic cycle: 1-2: Reversible polytropic compression at pressure 0.6 bar at volume 0.09 m to a pressure 11.1 bar and specific volume 0.3 m/kg. The index of compression may be taken as n. 2-3: Reversibly expansion with expansion index of 2 to pressure 1.6 bar. 3-1: Reversible cooling at constant volume to the initial state. Calculate the work for the compression in the process to 2 decimal places. Not in kilo or mega.
When you add heat to a system, by how much does its temperature change?
Temperature is an extensive property. True or False? Explain.
Some unknown gas undergoes a polytropic process, pV^1.5 = constant, the initial pressure, p1, is 1 bar, and the initialvolume, V1, is 1 m3. We also know the final volume, V2, is 4 m3. Please determine 1) the final pressure of the gas, p2, inbar; and the total work done by the gas, W, in kJ; 2) judge the direction of energy flow for the work: into the system or outof the system.
* Thermodynamic as a science dealing with the concept of work Ture O O False
what is the term that refers to the total energy content of a system in the topic of Thermodynamics?
(c) Define what is the Zeroth Law of Thermodynamics. Briefly explain your answer by stating ONE (1) situation that happens around you.