The Importance of Heat Pump COP in the Economics of 5th Generation District Heating and Cooling Networks

Conference paper

Revesz, A., Roscoe Papini Lagoeiro, H., De Almeida Marques, A., Jones, P., Dunham, C. and Maidment, G. (2023). The Importance of Heat Pump COP in the Economics of 5th Generation District Heating and Cooling Networks . 2023 ASHRAE winter conference. Atlanta, Georgia, USA 04 - 08 Feb 2023 American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).
AuthorsRevesz, A., Roscoe Papini Lagoeiro, H., De Almeida Marques, A., Jones, P., Dunham, C. and Maidment, G.
TypeConference paper
Abstract

This paper describes the investigation of heat pumps for GreenSCIES, a 5th Generation heat network in Islington, London. The paper describes the GreenSCIES concept integrating Mobility, Power and Heat into a local energy system. At the heart of the system is a 5th generation heat network, which utilises an ambient heat network to capture secondary heat and share heat between different applications. The GreenSCIES network, technology utilised and buildings connected are described. Heat pumps are used to amplify the temperature of the ambient loop to deliver heat at the required temperature in connected buildings. A number of different heat pumps using different refrigerants and configurations were appraised in this study. This considered the performance, safety, environmental impact, operational and capital expenditure point of view. The study shows the importance of heat pump COP on the economics of operating the system and suggests innovative series arrangements in order to improve performance and economics.

KeywordsCOP
Year2023
JournalASHRAE Transactions
PublisherAmerican Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
Journal citation129 (1), pp. 275-282
ISSN0001-2505
Accepted author manuscript
License
File Access Level
Open
Publication dates
Online08 Feb 2023
Publication process dates
Accepted31 Jan 2023
Deposited30 Sep 2023
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Evans, JA, Maidment, GG, Brown, T, Hammond, E and Foster, A (2016). Carbon reduction opportunities for supermarkets. 4th IIR International Conference on Sustainability and the Cold Chain. Auckland, New Zealand 07 - 09 Apr 2016 IIR. https://doi.org/10.18462/iir.iccc.2016.0042
The Value of hybrid heat pumps
Yebiyo, M and Maidment, GG (2016). The Value of hybrid heat pumps. CIBSE journal. 2016 (Aug).
Large scale cooling using mains water
Davies, G., Maidment, GG, Paurine, A, Rutter, P, Evans, T and Tozer, R (2016). Large scale cooling using mains water. 12th Institute of Refrigeration Gustav Lorentzen Natural Working Fluids Conference. Edinburgh, UK 21 - 24 Aug 2016
Simulation of the heat recovery use of R744 systems in a supermarket
Colombo, I, Maidment, GG, Chaer, I and Paurine, A (2016). Simulation of the heat recovery use of R744 systems in a supermarket. 12th IIR Gustav Lorentzen Natural Working Fluids Conference. Edinburgh, UK 21 - 24 Aug 2016 IIR. https://doi.org/10.18462/iir.gl.2016.1180
Solar assisted heat pumps
Godbold, R, Paurine, A and Maidment, GG (2016). Solar assisted heat pumps. 12th Gustav Lorentzen Natural Working Fluids conference. Edinburgh 20 - 22 Aug 2016
Carbon reduction opportunities for supermarkets
Evans, J, Maidment, GG, Brown, T, Hammond, E and Foster, A (2016). Carbon reduction opportunities for supermarkets. IRHACE journal.
An investigation of refrigerant leakage in commercial refrigeration
Francis, C., Maidment, GG and Davies, G. (2016). An investigation of refrigerant leakage in commercial refrigeration. International Journal of Refrigeration. 74 (Feb), pp. 10-19. https://doi.org/10.1016/j.ijrefrig.2016.10.009
Life Cycle Assessment of salmon cold chains: Comparison between chilling and superchilling technologies
Hoang, HM, Leducq, D, Brown, T, Maidment, GG, Indergård, E and Alvarez, G (2015). Life Cycle Assessment of salmon cold chains: Comparison between chilling and superchilling technologies. Proceedings of the 24th IIR International Congress of Refrigeration. Yokohama, Japan 16 - 22 Aug 2015 International Institute of Refrigeration. pp. 4574-4581 https://doi.org/10.18462/iir.icr.2015.0440
Modelling and development of sustainable Refrigerated road transport systems
Francis, C, Davies, G., Evans, J, Maughan, P, Sherwood, J and Maidment, GG (2015). Modelling and development of sustainable Refrigerated road transport systems. Refrigeration Science and Technology. https://doi.org/10.18462/iir.icr.2015.0324
Minimising product moisture loss in professional service cabinets
Marques, C., Hammond, E and Wood, I (2015). Minimising product moisture loss in professional service cabinets. The 24th IIR International Congress of Refrigeration - Improving Quality of Life, Preserving the Earth. Yokohama, Japan 16 - 22 Aug 2015 https://doi.org/10.18462/iir.icr.2015.0525
Ground source heat pumps and their interactions with underground railway tunnels in an urban environment: A review
Revesz, A, Chaer, I, Thompson, J, Mavroulidou, M, Gunn, MJ and Maidment, GG (2015). Ground source heat pumps and their interactions with underground railway tunnels in an urban environment: A review. Applied Thermal Engineering. 93, pp. 147 - 154. https://doi.org/10.1016/j.applthermaleng.2015.09.011
Application of Vacuum Insulated Panels in Commercial Service Cabinets
Hammond, E. and Marques, C. (2014). Application of Vacuum Insulated Panels in Commercial Service Cabinets. 3rd IIR International Conference on Sustainability and the Cold Chain. St Mary’s University, Twickenham, London 23 - 26 Jun 2014 International Institute of Refrigeration.
Estimation of Cooling Energy Demand and Carbon Emissions from Urban Buildings using a Quasi-dynamic Model
Cowan, D, Maidment, GG and Chaer, I (2014). Estimation of Cooling Energy Demand and Carbon Emissions from Urban Buildings using a Quasi-dynamic Model. ASHRAE 2014 Winter Conference. New York city, USA 18 - 22 Jan 2014 London South Bank University.
A Carbon Footprint Study and a Life Cycle Assessment of an identical Refrigerated Display Cabinet: comparative analysis of the respective ratios of embodied and operational impacts
Bibalou, D, Andrews, D, Chaer, I, Maidment, GG and Longhurst, M (2014). A Carbon Footprint Study and a Life Cycle Assessment of an identical Refrigerated Display Cabinet: comparative analysis of the respective ratios of embodied and operational impacts. 4th International Conference on Life Cycle Approaches. Lille, France 05 - 06 Nov 2014 Forum for Sustainability Through Life Cycle Innovation.
Noise reduction in commercial refrigerators - a practical approach
Marques, A. C., Gomez-Agustina, L., Dance, S., Hammond, E. and Wood I. (2013). Noise reduction in commercial refrigerators - a practical approach . 20th International Congress on Sound and Vibration. Bangkok, Thailand 07 - 11 Jul 2013
Theoretical modelling and experimental investigation of a thermal energy storage refrigerator
Marques, C., Davies, G., Evans, JA, Maidment, GG and Wood, ID (2013). Theoretical modelling and experimental investigation of a thermal energy storage refrigerator. Energy. 55, pp. 457-465. https://doi.org/10.1016/j.energy.2013.03.091
The use of phase change materials in domestic refrigerator applications
Evans, J, Marques, C., Davies, G, Maidment, GG and Wood, ID (2013). The use of phase change materials in domestic refrigerator applications. Proceedings of the Institute of Refrigeration 2013-2014. London, UK 07 Nov 2013 Institute of Refrigeration.
Novel design and performance enhancement of domestic refrigerators with thermal storage
Marques, C., Davies, G., Maidment, GG, Evans, JA and Wood, ID (2013). Novel design and performance enhancement of domestic refrigerators with thermal storage. Applied Thermal Engineering. 63 (2), pp. 511-519. https://doi.org/10.1016/j.applthermaleng.2013.11.043
Potential life cycle carbon savings with low emissivity packaging for refrigerated food on display
Davies, G., Man, CMD, Andrews, D, Paurine, A, Hutchins, MG and Maidment, GG (2012). Potential life cycle carbon savings with low emissivity packaging for refrigerated food on display. Journal of Food Engineering. 109 (2), pp. 202-208. https://doi.org/10.1016/j.jfoodeng.2011.10.018
Description and validation of a computer based refrigeration system simulator
Eames, IW, Brown, T, Evans, JA and Maidment, GG (2012). Description and validation of a computer based refrigeration system simulator. Computers and Electronics in Agriculture. 85, pp. 53-63. https://doi.org/10.1016/j.compag.2012.03.010
Carbon dioxide refrigeration with heat recovery for supermarkets
Colombo, I, Maidment, GG, Chaer, I and Missenden, JM (2012). Carbon dioxide refrigeration with heat recovery for supermarkets. International Journal of Low-Carbon Technologies. 9 (1), pp. 38-44. https://doi.org/10.1093/ijlct/cts040
Modelling of a thermal storage refrigerator
Marques, C., Davies, G., Evans, J., Maidment, G. and Wood I. (2011). Modelling of a thermal storage refrigerator. The 23rd IIR International Congress of Refrigeration. Prague, Czech Republic 01 - 01 Aug 2011 International Institute of Refrigeration.
REAL Zero – Reducing refrigerant emissions & leakage- feedback from the IOR Project
Cowan, D, Gartshore, J, Christina, F, Chaer, I and Maidment, GG (2011). REAL Zero – Reducing refrigerant emissions & leakage- feedback from the IOR Project. Proceedings of the Institute of Refrigeration.
Novel Design and Performance of Domestic Refrigerators
Marques, C., Evans, J., Davies, G., Maidment, G. and Wood I. (2010). Novel Design and Performance of Domestic Refrigerators. 1st IIR International Cold Chain Conference. UK, Cambridge 29 - 31 Mar 2010 International Institute of Refrigeration.
Application of Phase Change Materials to Domestic Refrigerators
Marques, C., Davies, G., Maidment, G., Evans, J. and Wood I. (2010). Application of Phase Change Materials to Domestic Refrigerators. 9th IIR Conference on Phase Change Materials and Slurries for Refrigeration and Air-Conditioning. Sofia, Bulgaria 29 Sep 210 - 01 Oct 2010 International Institute of Refrigeration.
Influence of Propagation Conditions on the Start-up Phase of Immobilised Yeast Reactors
Marques, A. C., Ludwig A. and Vicente I. (2005). Influence of Propagation Conditions on the Start-up Phase of Immobilised Yeast Reactors. 7th Conference on Food Chemistry . 13 - 16 Apr 2005