design a two stage cascade refrigreation system.

Design Problem

Design a two-stage cascade refrigeration system by determining the intermediate pressures (with T3 - T8 = 5 °C) required to maximize the COP of the cycle. The system operates between the pressure limits of 100 kPa and 1500 kPa. The isentropic efficiency of both compressors is taken as 65%. The system is required to provide a cooling capacity of 100 kW. Ignore pressure drops in the heat exchangers. Also, assume the fluid to be saturated vapor at the inlet to both the compressors and saturated liquid at the exit of both the condensers. Calculate the mass flow rate of the refrigerant through both the upper and lower cycles under different combinations.


Your report should include a schematic, the calculations procedure with relevant equations. An executive summary describing the highlights of your achievements should be provided. Be sure to state all assumptions clearly. A T-s and P-h diagrams for the cycle should be provided along with a table showing the pressure, temperature, entropy and enthalpy of all the states at the optimized operating condition.. Also, mention the rate of heat rejected from the refrigerant to the ambient as well as the total power input at the optimized point for the following fluid:

(a) R134a in both cycles,

(b) R-134a in the lower cycle (B), and R-22 in the upper cycle (A).

Also, discuss the use of cascade refrigeration systems for various applications in the industry. In this regard you may have to go through some Internet sites

Evner: Elektrisk Ingeniørarbejde, Ingeniørarbejde, Elektronik, Mekanisk Ingeniørarbejde, Kredsløbs Design

Om arbejdsgiveren:
( 0 bedømmelser ) Riyadh, Saudi Arabia

Projekt ID: #22689146

9 freelancere byder i gennemsnit $198 på dette job


السلام عليكم I’m Mohamad Saeed . Mechanical engineer with high experience. I have checked your job description and I’m ready to help you in your project

$555 USD in 2 dage
(48 bedømmelser)

I am mechanical engineer working in the area of refrigeration system I can design two stage cascade refrigeration system Please send details of work

$20 USD in 7 dage
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Hi, We are 2 master students of Politecnico di Milano which is a high-rank university in the world. We finished our bachelor's in Mechanical Engineering and We have a lot of experience in Thermodynamic and heat transf Flere

$250 USD in 4 dage
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Mechanical/Aerospace Ing , ML/AI Progammer , i am a Translator ( French and English Spanish ) ,Mechanical Engineer , Entrepreneur, with experience in product design and manufacturing , applied Mechanics , FEA , Machin Flere

$20 USD in 7 dage
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Hi I am an HVAC eexpert and I can solve this problem easily. I offer my services for this project. Cheers

$444 USD in 3 dage
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Dear, your model is already done on Redslibrary website at [login to view URL] Model link: [login to view URL] The model is considering Flere

$388 USD in 3 dage
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The Ph and Ts diagrams included the temperatures and pressures requested will be provided in the given time period.

$30 USD in 4 dage
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Hai I am naveen from India. I have good knowledge and analyzing skill in thermodynamics. I will finish your work as soon as possible. Thank you.

$40 USD in 5 dage
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Dear Sir, I am MEP Design Engineer. I am lead person of MEP Design in my consulting company. I have done lots of projects in MEP as Designer. Here i have quoted as low as i can because of now i am entering in freelance Flere

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