1. ANALYSIS OF CASCADE REFRIGERATION SYSTEM
INTRODUCTION
Cascade system is a series of refrigerants with progressively lower boiling points are used in a series of
single stage units. The condenser of lower stage system is coupled to the evaporator of the next higher
stage system. The component where heat of condensation of lower stage refrigerant is supplied for
vaporizationof nextlevel refrigerantiscalledascascade condenser.
OBJECTIVE
1. Designof Cascade RefrigerationSystem
2. AnalysisonCascade RefrigerationSystem
3. DeterminigCoefficientOf Performance
METHODOLOGY
1. Literature survey
2. Problem Formulation
3. Selection of Refrigerant & compressors
4. Design using as per the model of system
5. Analysis of pressure
6. Calculation of COP
ADVANTAGES OF CASCADESYSTEMS:
1. Since eachcascade usesa differentrefrigerant,itispossible toselectarefrigerantthatisbest
suitedforthat particulartemperature range.Veryhighorverylow pressurescanbe avoided
2. Migrationof lubricatingoil fromone compressortothe otherisprevented
Sumittedby:
AJAY SENGAR (1112240012)
AJEET KUMAR (1112240014)
ANKITPRATAPSINGH(1112240029)
Under the guidence of :
ASST.PROF.MR AMIT PRAKSH
(M.E. DEPTT.)
2. COMPLETE SYSTEM
REFRENCES
1. Performance Studyof Cascade-refrigeration-system
Gulshan Sachdeva, Vaibhav Jain, S. S. Kachhwaha
2. The Comparative Analysis of R22 and R134a Cascade Refrigeration System
SCIENCE.NET
OBSERVATION TABLE
Pressureat suction of
compressor(R-134a)
P= H=
Pressureat discharge of
compressor(R-134a)
P= H=
Pressureat suction of
compressor(R-22)
P= H=
Pressureat discharge of
compressor(R-22)
P= H=
Mass flow rate
3. DESIGN SPECIFICATION
1. Size of capillary(expansionvalve forR-22)= 304 mm
2. Size of capillary(expansionvalve forR-134a)=608 mm
RESULT
The COP of the systemis :
