Skip to main content
SpringerLink
Log in

A comprehensive parametric and structural bond analysis of an actual vapor compression refrigeration system with dedicated mechanical subcooled system

  • Original Article
  • Published:
Journal of Mechanical Science and Technology Aims and scope Submit manuscript

Abstract

This study compares the performance of dedicated mechanical subcooled vapor compression refrigeration (DMS-VCR) system and actual vapor compression refrigeration (VCR) system of same capacity (100 kW), and evaluates them on the basis of energy, exergy, and coefficient of structural bond (CSB) configuration. Results indicate that DMS-VCR system outperforms VCR system at constant condenser temperature (Tcond = 40° C) with varying evaporator temperatures (Tevap = 0 °C, 5 °C and 10 °C).The most significant results occurs at 0 °C, resulting in a coefficient of performance (COP) 4.60 % higher than actual VCR system’s COP and exergetic efficiency 4.38 % higher than actual VCR system’s exergetic efficiency, making it a more favourable choice for water chilling applications. Additionally, the study investigates the potential of the CSB method in improving system efficiency by reducing irreversibility rate in a specific component. It finds that improving the efficiency of a component can significantly decrease the total irreversibility rate of the system. The CSB value of condenser-1 and evaporator are observerd to be highest (i.e. 1.96 and 2.27) and hence the performance of DMS-VCR system can be greatly improved by changing the efficiency parameter of evaporator and condenser-1 of the DMS-VCR system.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Abbreviations

CSB :

Coefficient of structural bonds

COP :

Coefficient of performance

Cp :

Specific-heat (kJ/kg.K)

C :

Thermal capacitance rate (kW/K)

DMS :

Dedicated mechanical subcooling

DOS :

Degree of subcooling

DOO :

Degree of overlap

H :

Enthalpy (specific, kJ/kg)

I :

Irreversibility (rate, kW)

ṁ :

Mass (flow rate, kg/s)

P :

State point pressure (kPa)

PR :

Pressure ratio

Q :

Rate of heat transfer (kW)

s :

Entropy (specific, kJ/kg.K)

S_gen :

Entropy generation rate (kW/K)

T :

Temperature (°C)

VCR :

Vapor compression refrigeration

W :

Power input rate (kW)

ϵ :

Effectiveness

η :

Efficiency

o :

Environment condition

dl :

Discharge line

comp :

Compressor

cond :

Condenser

EoS :

Element or subsystem

ef :

External fluid

ev :

Expansion valve

ex :

Exergetic

evap :

Evaporator

in :

Inlet condition

isen :

Isentropic

max :

Maximum

out :

Outlet condition

ol :

Overlap

ref :

Refrigerant

sc :

Subcooling

sup :

Superheating

sl :

Suction line

t :

Total

Z i :

System efficiency parameter

n :

Nth element of system

x :

Dryness fraction (quality)

1,2,3… :

State points

References

  1. B. A. Qureshi and S. M. Zubair, The effect of refrigerant combinations on performance of a vapor compression refrigeration system with dedicated mechanical sub-cooling, Int. J. Refrig., 35 (1) (2012) 47–57.

    Article  Google Scholar 

  2. B. A. Qureshi and S. M. Zubair, Mechanical sub-cooling vapor compression systems: current status and future directions, Int. J. Refrig., 36 (8) (2013) 2097–2110.

    Article  Google Scholar 

  3. B. A. Qureshi et al., Experimental energetic analysis of a vapor compression refrigeration system with dedicated mechanical sub-cooling, Appl. Energy, 102 (2013) 1035–1041.

    Article  Google Scholar 

  4. P. D’Agaro, M. A. Coppola and G. Cortella, Effect of dedicated mechanical subcooler size and gas cooler pressure control on transcritical CO2 booster systems, Appl. Therm. Eng., 182 (2021) 116145.

    Article  Google Scholar 

  5. M. H. Yang and R. H. Yeh, Performance and exergy destruction analyses of optimal subcooling for vapor-compression refrigeration systems, Int. J. Heat Mass Transf., 87 (2015) 1–10.

    Article  Google Scholar 

  6. G. B. Wang and X. R. Zhang, Thermoeconomic optimization and comparison of the simple single-stage transcritical carbon dioxide vapor compression cycle with different subcooling methods for district heating and cooling, Energy Convers. Manag., 185 (2019) 740–757.

    Article  Google Scholar 

  7. S. Agarwal, A. Arora and B. B. Arora, Exergy analysis of dedicated mechanically subcooled vapour compression refrigeration cycle using HFC-R134a, HFO-R1234ze and R1234yf, G. Zhang, N. Kaushika, S. Kaushik and R. Tomar (eds.), Advances in Energy and Built Environment. Lecture Notes in Civil Engineering, Springer, Singapore, 36 (2020).

    Google Scholar 

  8. D. Boer, M. Medrano and M. Nogués, Exergy and structural analysis of an absorption cooling cycle and the effect of efficiency parameters, ECOS 2005 - Proc. 18th Int. Conf. Effic. Cost, Optim. Simulation, Environ. Impact Energy Syst., 8 (4) (2005) 337–344.

    Google Scholar 

  9. T. Tekin and M. Bayramoǧlu, Exergy and structural analysis of raw juice production and steam-power units of a sugar production plant, Energy, 26 (3) (2001) 287–297.

    Article  Google Scholar 

  10. C. Nikolaidis and D. Probert, Exergy-method analysis of a two-stage vapour-compression refrigeration-plants performance, Appl. Energy, 60 (4) (1998) 241–256.

    Article  Google Scholar 

  11. R. D. Misra, P. K. Sahoo and A. Gupta, Thermoeconomic optimization of a LiBr/H2O absorption chiller using structural method, J. Energy Resour. Technol. Trans. ASME, 127 (2) (2005) 119–124.

    Article  Google Scholar 

  12. N. Solanki, A. Arora and R. K. Singh, Advance exergy and coefficient of structural bond analysis of dedicated mechanical subcooled vapor compression refrigeration system, Int. J. Refrig., 153 (2023) 266–280, DOI: https://doi.org/10.1016/j.ijrefrig.2023.06.008.

    Article  Google Scholar 

  13. S. A. Klein, Engineering Equation Solver, Professional Version 10.561, F-Chart Software, Madison, WI 53744 (2018).

    Google Scholar 

  14. P. K. Nag, Basic and Applied Thermodynamics, Tata McGraw-Hill, USA (2002) 781.

    Google Scholar 

  15. V. Jain, G. Sachdeva and S. S. Kachhwaha, NLP model based thermoeconomic optimization of vapor compression-absorption cascaded refrigeration system, Energy Convers. Manag., 93 (2015) 49–62.

    Article  Google Scholar 

  16. H. Sayyaadi and M. Nejatolahi, Multi-objective optimization of a cooling tower assisted vapor compression refrigeration system, Int. J. Refrig., 34 (1) (2011) 243–256.

    Article  Google Scholar 

  17. Ö. Kizilkan, A. Şencan and S. A. Kalogirou, Thermoeconomic optimization of a LiBr absorption refrigeration system, Chem. Eng. Process. Process Intensif., 46 (12) (2007) 1376–1384.

    Article  Google Scholar 

  18. T. J. Kotas, The Exergy Method of Thermal Plant Analysis 2, Krieger Publishing Company (1995) 198.

  19. S. Agarwal, A. Arora and B. B. Arora, Thermodynamic performance analysis of dedicated mechanically subcooled vapour compression refrigeration system, J. Therm. Eng., 5 (4) (2019) 222–236.

    Article  Google Scholar 

  20. X. H. Han et al., Cycle performance studies on HFC-161 in a small-scale refrigeration system as an alternative refrigerant to HFC-410A, Energy Build, 44 (1) (2012) 33–38.

    Article  Google Scholar 

  21. A. Arora and S. C. Kaushik, Theoretical analysis of a vapour compression refrigeration system with R502, R404A and R507A, Int. J. Refrig., 31 (6) (2008) 998–1005.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Maharaja Agrasen Institute of Technology, PSP Area Sector-22, Rohini, Delhi, 110086, India

    Naveen Solanki

  2. Department of Mechanical Engineering, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi, 110042, India

    Akhilesh Arora & Raj Kumar Singh

Authors
  1. Naveen Solanki
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Akhilesh Arora
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Raj Kumar Singh
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Naveen Solanki.

Additional information

Naveen Solanki is currently working as Assistant Professor in the Department of Mechanical Engineering at Maharaja Agrasen Institute of Technology affiliated to Guru Gobind Singh Indraprastha University, Delhi, India. He did his M.E. in thermal engineering from Delhi College of Engineering (DCE), Delhi University, Delhi, India in 2012. He is a research scholar from Delhi Technological University, formerly known as Delhi College of Engineering. His research area is refrigeration and air-conditioning; he has done a lot of work in this field. He has published papers in national and international journals and conferences.

Akhilesh Arora is currently working as a Professor in the Mechanical Engineering Department at Delhi Technological University, Delhi (India). He did his Master’s degree in Thermal Engineering from the Indian Institute of Technology (IIT) Delhi. He then went on to pursue his Ph.D. in the same field from the same institute. His research interests lie in the areas of refrigeration and air conditioning, thermal engineering, and energy management. He has published numerous research papers in national and international journals and has presented his work at various conferences and seminars.

Raj Kumar Singh is currently working as a Professor in the Mechanical Engineering Department at Delhi Technological University, Delhi (India). He did his Master’s degree in Mechanical and Ph.D. in the field of Fluid Mechanics. His research interests lie in the areas of fluid mechanics, fluid machines, computational fluid dynamics (CFD), biogas utilization, and digital learning. He has published several research papers in national and international journals and has presented his work at various conferences and seminars.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Solanki, N., Arora, A. & Singh, R.K. A comprehensive parametric and structural bond analysis of an actual vapor compression refrigeration system with dedicated mechanical subcooled system. J Mech Sci Technol 38, 439–452 (2024). https://doi.org/10.1007/s12206-023-1236-5

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12206-023-1236-5

Keywords

Search

Navigation