Hint, find enthalpy, entropy at each state As a scoping calculation for a PWR design, you are trying to determine the approximate range ofconversion efficiencies of the secondary side as a function of condenser pressure. The primary side ofthe system provides water to the steam generator at 315°C and it exits at 285°C. Its flow rate on theprimary side is 1.95x10 kg/s and the pressure is 15.5 MPa. The average specific heat for the primarykjwater is 5.54 (5 points total)kg °C°a) Determine the power and heat added at the steam generator.b) The pressure of the steam generator secondary side is 7.75 MPa. Provide a table and a plotfor the following items as the condenser pressure varies from 0.005 MPa to 0.25 MPaa. Cycle efficiency (b. Secondary mass flow rateC.Electric generation.c) What general conclusion(s) can be drawn from the results? (1

Answered: Image /qna-images/answer/4ee7556c-6c12-4cf7-aa21-dd6cbac6fa1e.jpg

Answered: As a scoping calculation for a PWR…

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

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The capacity of a refrigeration plant is 60 kW and its design parameters are: -Evaporation temperature: Tev = -40 °C, with DT_evaporator = 8 °C. -Condensing temperature Tcd = 35 °C. -The condenser is cooled by water, which enters at 27°C and leaves at 30°C. The subcooling ∆T it is 5°C. The refrigerant used is R717. - The ∆T of superheating is 5 °C at the outlet of the evaporator and 15 °C in the pipe of aspiration. The pressure loss in the suction pipe is 1°C while the loss of pressure in the pipe on the evaporation coil is 6°C. It is requested: a) Show the scheme of principle suitable for the indicated conditions and draw t he cycle diagram. B) Calculate the theoretical power of the compressor in kW C) Determine the COP and the efficiency of the system.
A direct contact condenser of the spry type receives 60 kg/s of 925 quality steam at 0.06bar. A dry cooling tower system cools the feedwater to 15 oC. calculate the condensatepump volume flow rate , and the pump power input if the pressure losses in the dry coolingtower system are 2 bar and the pump efficiency is 0.7.
saturated liquid from condenser Pcond = 900 kPa mcond =0.05 kg/s mcomp refrigerant to compressor ank- 500 kPa 3 rim mup Başka yönergeler almak için tıklayın Figure illustrates a vapor separator that is part of a refrigeration system. Saturated liquid R134a leaves the condenser at State 1 with a mass flow rate of 0.05 kg/s and pressure of 900 kPa. This refrigerant enters the vapor separator (a large, insulated tank) through a valve. The pressure in the tank is 500 kPa. There is no pressure drop due to flow through the tank (i.e., the pressure at States 2, 3, and 5 are all the same). The flow at State 2 is two-phase. The liquid portion of this flow falls to the bottom of the tank due to gravity while the vapor portion remains at the top. The saturated liquid is drawn from the bottom of the tank (at State 3). The saturated vapor is drawn off of the top of the tank at State 5 and fed to a compressor. Assume that the vapor separator is adiabatic, rigid, and operating at steady state. a) The…
Q4/ Cold storage uses R134a, the evaporator temperature is -7°C and the condenser temperature is 32°C. The cooling load is 5.3×10³ kJ/min. The cycle is ideal. Determine: 1. Mass flowrate of the refrigerant. 2. Coefficient of Performance (COP). If the water condenser is used that enter at 24°C and exit at 30°C. determine the water flowrate.
1st Step: Evaluate the performance of the Refrigerator 1.Refrigerator 1 operates as a reverse Carnot cycle using R-717 as the refrigerant at aflow of 1.8 kg/s. The condensing and evaporating temperatures are 25 °C and -5 °C, respectively.To evaluate the performance of Chiller 1, you must determine the following performance parameters:project:a) Rate of heat elimination in the condenser (Q );b) The power of the compressor;c) The COP of the cycle.For the energy balance, make the following considerations:- Permanent regime;- Variation of kinetic energy and potentials are negligible;- Compressor and turbine operate adiabatically;- Evaporation and condensation steps do not involve work. Please, make it typeable, written in virtual text, do not do it by hand and do not take a photo, it interferes with the understanding of the lyrics.
subject (thermo 2) pls show full steps with clear handwriting pls answer me in 20 mins sir
In a Refrigerant 11 system ,one evaporator is to provide 210 kw of refrigerant at 0 0C and another evaporator is to provide 224 kw at -200C . The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 400C . Given that, h2=389kJ/kg, h4=416kJ/kg Compute the following: a.) mass flow rate at low stage compressor (m1)ANSWER: 1.25377 kg/s b.) mass flow rate at high stage compressor (m3)ANSWER: 2.90255 kg/s c.) low stage compressor workANSWER: 12.96406 kw d.) high stage compressor workANSWER: 78.68819 kw e.) total compressor workANSWER: 91.65226 kw f.) COPANSWER: 4.73528 g.) heat rejected in the condenserANSWER: 525.65226 kw
Cold storage uses R134a, the evaporator temperature is -7C and the condenser temperature is 32C. The cooling load is 5.3103 kJ/min. The cycle is ideal. Determine: 1. Mass flowrate of the refrigerant. 2. Coefficient of Performance (COP). - If the water condenser is used that enter at 24C and exit at 30C. determine the water flowrate.
In a system one evaporator is to provide 180 kW of refrigeration at -30C and another evaporator is to provide 200 kW at 5C. the condenser temperature is 40C. The system uses 2 – stage compression with intercooling and is arranged as in figure. Calculate the power required by the compressors.
2. A cascade refrigeration system uses R22 in the low temp unit and R12 in the high temp unit. The system develops 28 kW of refrigeration at -45°C. The R12 system operates at -12°C evaporating temp and 40°C condensing temp. There is a 10° overlap of temperatures in the cascade condenser. Calculate the (a) mass flow rate of R22, (b) mass flow rate of R12
Problem 4 In an ammonia system one evaporator is to provide 180 kW of refrigeration at -30°C and another evaporator is to provide 200 kW at 5°C. The system uses two stage compression with intercooling and flash gas removal as shown below. The condensing temperature is 40°C. Calculate the power requirement and COP of the system. Condenser 40°C High-stage compressor Evaporator 5°C 6. 200 kW Intercooler and flash tank Evaporator -30°C 180 kW 8 Low-stage compressor
A manufacturer conducted an experiment for an evaporator capacity 507 kW cooling and designed for high COP of 1.8 when using lithium bromide plus water in an absorption refrigeration system. The evaporator operates 20 C, condenser 40 C & absorber 45 C supplying 1.4 kg/s of water plus lithium bromide solution to the generator. For a condenser size of 694 kW, determine: Heat provided by the generator & absorber capacity in kW

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