International Journal of Current Research and Review
ISSN: 2231-2196 (Print)ISSN: 0975-5241 (Online)
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IJCRR - Vol 03 Issue 09, September, 2011

Pages: 180-185

Date of Publication: 30-Nov--0001


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COMPARATIVE ANALYSIS OF VAPOUR JET REFRIGERATION SYSTEM WITH WORKING FLUID
R134A & R410A

Author: Sandeep Kashyap, R.C. Gupta

Category: Technology

Abstract:This paper discuss, the performance of vapor jet refrigeration system with working fluid R410a and
R134a.The analysis based on one dimensional mathematical model. A performance comparison is made
on various operating condition and ejector area ratio. These operating conditions are boiling temperature
(333 to 353K), Condenser temperature (300 to 313K) & evaporator temperature (268 to 278K) and area
ratio 4.0 & 5.67.The result shows that performance of jet refrigeration mainly depends on boiling
temperature and ejector geometry, the performance R134a is better than R410a.

Keywords: Ejector, simulation program, ejector geometry, performance

Full Text:

1) INTRODUCTION

At present, most of conventional refrigeration system based on vapours compression cycle which are driven by the high grade electrical energy. The most attractive feature of Vapour jet refrigeration system over the conventional refrigeration system that it can driven by the low grade thermal energy such as solar energy, waste industrial heat and geothermal energy. Compared to other renewable energy operated refrigeration system, ejector refrigeration system has more simplicity, reliable, long life, low initial and running cost. The main disadvantage of Vapour jet refrigeration system has lower COP compare to other refrigeration cycle such as absorption refrigeration cycle (1). The performance of ejector refrigeration system mainly depends on the thermodynamic property of working fluid. At initial stage ejector refrigeration cycles utilized the water as working fluid but other refrigerant may also provided the better performance for Vapour jet refrigeration cycle. In this study eco friendly refrigeration‘s are taken for different area ratio.

2) SYSTEM DESCRIPPTION

The Vapour jet refrigeration cycle is shown fig (1) which consists of boiler, condenser, evaporator, ejector, pump, expansion valve. Low pressure primary fluid enters into boiler where it absorbs low grade heat and converts into high pressure vapour. This high pressure saturated vapour moved into ejector where it expanded in the convergent- divergent nozzle and convert into high velocity stream, the pressure difference produce by primary fluid cause the suction of secondary saturated vaporized fluid from evaporator. Primary and secondary fluid mixed into the mixing chambered section and pressure increased due to shock waves by flow through the diffuser. High pressure fluid condensed into condenser by rejecting heat. A part of fluid pumped into boiler by the pump, remaining fluid entered into evaporated while passed though the expansion valve and produced the refrigeration effect.

 

 

5) CONCLUSION

Comparative analysis were made on Jet refrigeration cycles with working fluid R410a and R134a in same ejector geometry and same operating condition using one dimension modal. On based of study COP of ejector refrigeration cycle depends on ejector geometry, operation condition and property of working fluid. COP of system increased as boiler temperature increased while Cop is decreased when Compression ratio and condenser temperature increased. For different ejector ratio the performance of system are different but ejector ratio Ø= 564 at 353K have higher COP comparative other ejector ratio. For all area ratio and operating Condition the performance R134a is better than R410a.

 

 

References:

1. Kim DS. Infant Ferreia CA review- solar refrigeration option –a state of the art review (2008). 2.

K . Cizunga, A Mani, M. GRoll : Performance compression of vapour jet refrigeration system with environment friendly working fluids 2000).

3. A. selvaraju, A. Mani: Analysis of a vapour ejector refrigeration system with environment friendly refrigerants (2004).

4. Latra Boumaraf, Andre Lallemand: Modeling of an ejector refrigeration system operating in dimensioning and off dimensioning condition with the working fluids R142b and R600a (2008).

5. Jianlin Yu, Zhenxing Du: Theoretical study of a transcritical ejector cycle with refrigerant R143a.

6. JJ Henzier; Design of ejectors for single phase material system (1883).

7. J Fabri, R Siestrunk: Supersonic air ejector, 1998.

8. K Matsuo, K. Tasaki, K. Sasaguchi, H. Mochizuki: Investigate of supersonic air ejectors. Part 1: performance in the case of Zero secondary flow.

9. K Matsuo, K. tasaki, K. Sasaguch, H. Mochizuki: Investigate of supersonic air ejector. Part 2 Effect of throat area ratio in ejector performances.

10. L.T Lu, J. c Champoussin, E. Nahdi: Performance optimal et Utilisation Du systeme a ejecteur en production de froid.

11. H. P Schlag, Experimentelle und theoretische Untersuchungen Zur Berechung der Kennvon gasbetribenen Einphaseninjektoren und Gutaufgabeninjektoren.

12. B. J uang , et al, A 1-D analysis of ejector performance (1999)

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Best Article Award

A Study by Juna Byun et al. entitled "Study on Difference in Coronavirus-19 Related Anxiety between Face-to-face and Non-face-to-face Classes among University Students in South Korea" is awarded Best Article for Vol 12 issue 16
A Study by Sudha Ramachandra & Vinay Chavan entitled "Enhanced-Hybrid-Age Layered Population Structure (E-Hybrid-ALPS): A Genetic Algorithm with Adaptive Crossover for Molecular Docking Studies of Drug Discovery Process" is awarded Best article for Vol 12 issue 15
A Study by Varsha M. Shindhe et al. entitled "A Study on Effect of Smokeless Tobacco on Pulmonary Function Tests in Class IV Workers of USM-KLE (Universiti Sains Malaysia-Karnataka Lingayat Education Society) International Medical Programme, Belagavi" is awarded Best article of Vol 12 issue 14, July 2020
A study by Amruta Choudhary et al. entitled "Family Planning Knowledge, Attitude and Practice Among Women of Reproductive Age from Rural Area of Central India" is awarded Best Article for special issue "Modern Therapeutics Applications"
A study by Raunak Das entitled "Study of Cardiovascular Dysfunctions in Interstitial Lung Diseas epatients by Correlating the Levels of Serum NT PRO BNP and Microalbuminuria (Biomarkers of Cardiovascular Dysfunction) with Echocardiographic, Bronchoscopic and HighResolution Computed Tomography Findings of These ILD Patients" is awarded Best Article of Vol 12 issue 13 
A Study by Kannamani Ramasamy et al. entitled "COVID-19 Situation at Chennai City – Forecasting for the Better Pandemic Management" is awarded best article for  Vol 12 issue 12
A Study by Muhammet Lutfi SELCUK and Fatma COLAKOGLU entitled "Distinction of Gray and White Matter for Some Histological Staining Methods in New Zealand Rabbit's Brain" is awarded best article for  Vol 12 issue 11
A Study by Anamul Haq et al. entitled "Etiology of Abnormal Uterine Bleeding in Adolescents – Emphasis Upon Polycystic Ovarian Syndrome" is awarded best article for  Vol 12 issue 10
A Study by Arpita M. et al entitled "Estimation of Reference Interval of Serum Progesterone During Three Trimesters of Normal Pregnancy in a Tertiary Care Hospital of Kolkata" is awarded best article for  Vol 12 issue 09
A Study by Ilona Gracie De Souza & Pavan Kumar G. entitled "Effect of Releasing Myofascial Chain in Patients with Patellofemoral Pain Syndrome - A Randomized Clinical Trial" is awarded best article for  Vol 12 issue 08
A Study by Virendra Atam et. al. entitled "Clinical Profile and Short - Term Mortality Predictors in Acute Stroke with Emphasis on Stress Hyperglycemia and THRIVE Score : An Observational Study" is awarded best article for  Vol 12 issue 07
A Study by K. Krupashree et. al. entitled "Protective Effects of Picrorhizakurroa Against Fumonisin B1 Induced Hepatotoxicity in Mice" is awarded best article for issue Vol 10 issue 20
A study by Mithun K.P. et al "Larvicidal Activity of Crude Solanum Nigrum Leaf and Berries Extract Against Dengue Vector-Aedesaegypti" is awarded Best Article for Vol 10 issue 14 of IJCRR
A study by Asha Menon "Women in Child Care and Early Education: Truly Nontraditional Work" is awarded Best Article for Vol 10 issue 13
A study by Deep J. M. "Prevalence of Molar-Incisor Hypomineralization in 7-13 Years Old Children of Biratnagar, Nepal: A Cross Sectional Study" is awarded Best Article for Vol 10 issue 11 of IJCRR
A review by Chitra et al to analyse relation between Obesity and Type 2 diabetes is awarded 'Best Article' for Vol 10 issue 10 by IJCRR. 
A study by Karanpreet et al "Pregnancy Induced Hypertension: A Study on Its Multisystem Involvement" is given Best Paper Award for Vol 10 issue 09
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List of Awardees

Awardees of COVID-19 Research

Woman Researcher Award

A Study by Neha Garg et al. entitled "Optimization of the Response to nCOVID-19 Pandemic in Pregnant Women – An Urgent Appeal in Indian Scenario" published in Vol 12 issue 09

A Study by Sana Parveen and Shraddha Jain entitled "Pathophysiologic Enigma of COVID-19 Pandemic with Clinical Correlates" published in Vol 12 issue 13

A Study by Rashmi Jain et al. entitled "Current Consensus Review Article on Drugs and Biologics against nCOVID-19 – A Systematic Review" published in Vol 12 issue 09

Emerging Researcher Award

A Study by Madhan Jeyaraman et al. entitled "Vitamin-D: An Immune Shield Against nCOVID-19" published in Vol 12 issue 09


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