Energy Savings through Liquid Pressure Amplification in Refrigeration Systems

Conference paper


Hadawey, A, Tassou, S and Ge, YT (2010). Energy Savings through Liquid Pressure Amplification in Refrigeration Systems. Sustainable Refrigeration and Heat Pump Technology Conference. Stockholm, Sweden 14 - 18 Jun 2010
AuthorsHadawey, A, Tassou, S and Ge, YT
TypeConference paper
Abstract

The Liquid Pressure Amplification (LPA) technology utilises a refrigerant pump in the liquid line after the receiver to maintain a high enough pressure differential across the expansion valve to compensate for the pressure drop in long liquid lines. This allows the condenser pressure to be varied in line with variations in the ambient temperature leading to lower discharge pressures during periods of low ambient temperatures and lower compressor power consumption. This paper considers the application of LPA to a vapour compression refrigeration system for a chilled cold store in a dairy plant. The analysis has shown that the use of LPA in conjunction with liquid injection can lead to in excess of 10% energy savings over and above the savings that can be achieved with floating head pressure alone.

Year2010
Accepted author manuscript
License
Publication dates
Print14 Jun 2010
Publication process dates
Deposited29 Nov 2018
Accepted03 May 2010
Permalink -

https://openresearch.lsbu.ac.uk/item/87q1q

Download files

  • 114
    total views
  • 62
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Export as

Related outputs

Optical properties of PVC composite modified during light exposure to give high absorption enhancement
Abed, Rasheed N., Yousif, E., Abed, A.R.N., Rashad, A., Hadawey, A. and Jawad, A. (2021). Optical properties of PVC composite modified during light exposure to give high absorption enhancement. Journal of Non-Crystalline Solids. 570, p. 120946. https://doi.org/10.1016/j.jnoncrysol.2021.120946
Assessing the Horizontal Homogeneity of the Atmospheric Boundary Layer (HHABL) Profile Using Different CFD Software
Abohela, I, Aristodemou, E, Hadawey, A and Sundararajan, R (2020). Assessing the Horizontal Homogeneity of the Atmospheric Boundary Layer (HHABL) Profile Using Different CFD Software. Atmosphere. 11 (10), pp. 1138-1138. https://doi.org/10.3390/atmos11101138
Determination of Display Shelf Life of Sandwich Components
Hadawey, A, Tassou, S and Datta, D (2005). Determination of Display Shelf Life of Sandwich Components. IIR International Conference. Commercial Refrigeration. Vicenza Italy 30 - 31 Aug 2005
Investigation of the performance characteristics of an ammonia-water absorption chiller in a tri-generation system arrangement
Hadawey, A, Tassou, S, Suamir, IN, Chaer, I and Marriott, D (2009). Investigation of the performance characteristics of an ammonia-water absorption chiller in a tri-generation system arrangement. 5th Heat Powered Cycles Conference. Berlin, Germany 07 Sep - 09 Nov 2009
Integration of CO2 refrigeration and tri-generation systems for supermarket Applications
Hadawey, A, Tassou, S, Suamir, IN and Marriott, D (2010). Integration of CO2 refrigeration and tri-generation systems for supermarket Applications. 1st IIR International Cold Chain Conference. UK, Cambridge 29 - 31 Mar 2010
Performance optimization of a secondary refrigerant display cabinet using tests and CFD modelling
Hadawey, A, Tassou, S, Jouhara, H and Suamir, IN (2010). Performance optimization of a secondary refrigerant display cabinet using tests and CFD modelling. 1st IIR International Cold Chain Conference. Cambridge, UK 29 - 31 Mar 2010
Liquid Pressure Amplification in Refrigeration Systems – Potential for Reducing Energy Consumption in Retrofit Applications
Hadawey, A, Tassou, S and Ge, YT (2010). Liquid Pressure Amplification in Refrigeration Systems – Potential for Reducing Energy Consumption in Retrofit Applications. SEEP 2010 Conference Proceedings. Bari, Italy 29 Jun - 02 Jul 2010
Experimental Study of a Light Commercial Refrigeration System Operating Under Frosting Conditions
Hadawey, A, Tassou, S and DA Silva, D (2011). Experimental Study of a Light Commercial Refrigeration System Operating Under Frosting Conditions. The 23rd IIR International Congress of Refrigeration. Prague, the Czech Republic 21 - 26 Aug 2011
Air Curtain Design Optimization of Refrigerated Vertical Display Cabinet using CFD
Hadawey, A, Jaber, T, Abdul Ghaffar, W and Hasan, A (2012). Air Curtain Design Optimization of Refrigerated Vertical Display Cabinet using CFD. International Journal of Engineering, Science and Technology. Volume (ISSN:).
Theoretical and experimental study of bubbly gas-water two phase flows through a Universal Venturi Tube (UVT)
Hadawey, A, Hasan, A, Al-Wahaibi, Y, Abdul-Karem, W and Al-Raheem, KF (2012). Theoretical and experimental study of bubbly gas-water two phase flows through a Universal Venturi Tube (UVT). International Journal of Information Science and Engineering. 2 (1), pp. 43-58.
Numerical Investigation into the Product’s Weight loss and Display Shelf life inside the Serve-over Cabinet
Hadawey, A (2018). Numerical Investigation into the Product’s Weight loss and Display Shelf life inside the Serve-over Cabinet. 2nd International Conference on Sustainable Energy and Resource Use in Food Chains, ICSEF 2018. Cyprus, Pahpos 17 - 19 Oct 2018
Unwrapped food product display shelf life assessment
Hadawey, A, Tassou, SA, Chaer, I and Sundararajan, R (2017). Unwrapped food product display shelf life assessment. Energy Procedia. 123, pp. 62-69. https://doi.org/10.1016/j.egypro.2017.07.233