Search

Your search keyword '"Dunham, Chris"' showing total 3 results
Start Over Author "Dunham, Chris" Topic carbon emissions
3 results on '"Dunham, Chris"'

1. A holistic design approach for 5th generation smart local energy systems: Project GreenSCIES.

Author

Revesz, Akos, Dunham, Chris, Jones, Phil, Bond, Carole, Fenner, Russell, Mody, Sagar, Nijjhar, Rajvant, Marques, Catarina, and Maidment, Graeme

Subjects
*SMART cities, *HEAT storage, *WASTE heat, *INTERNAL rate of return, *HEATING from central stations, *BUILDING-integrated photovoltaic systems, *HEAT pumps, *CARBON emissions
Abstract

This paper introduces a project called GreenSCIES; an InnovateUK funded detailed design project to develop a Smart Local Energy System (SLES) delivering a significant carbon saving for local residents, schools and businesses. The SLES is centred around a 5th Generation District Heating and Cooling (5DHC) network in the London Borough of Islington. The local energy system will deliver low carbon heating, cooling, power and e-mobility charging powered by renewable energy and waste heat, sourced from the local area. The proposed SLES will manage and balance the supply, storage (both thermal and electrical) and use of local energy across mobility, power and heat vectors. It will do so using smart control technologies, bringing significant energy efficiency and security as well as social, environmental and economic benefits to Islington. The paper introduces the holistic SLES design approach developed by the GreenSCIES consortium, building upon an initial feasibility study previously published by the authors. The design methodology described takes technical and commercial aspects of a SLES design into account, whilst also explaining the importance of effective stakeholder engagement and co-design with local communities. The paper also provides a technical overview around the intended operation of ambient loop and heat pumps alongside long and short term thermal energy storage. A technical approach selected for integrating electric vehicles (EVs) and solar photovoltaic (PV) is also discussed in detail, alongside the control system architecture developed for the integrated SLES. The paper subsequently moves into demonstrating the benefits of the integrated SLES through a focused scheme design called New River, demonstrating integrated SLES performance compared to conventional systems in a real setting, through a comprehensive energy model. The results presented from a techno-economic analysis demonstrate that significant carbon savings and an attractive internal rate of return of (10%) can be achieved. The results presented show that even the smaller constructible "New River" scheme will save more 5000 tons of CO 2 e annually. This is a reduction in carbon emissions by 80% over conventional systems and, therefore a major decarbonisation solution in large cities across the world. The GreenSCIES approach presented in this paper is replicable worldwide and could become a central part of delivering nations' net zero carbon strategy. • Ambient loops integrated with EV and PV could help decarbonise urban areas. • Aquifer Thermal Energy Storage provides a novel way of balancing the system. • The Behind the Meter electrical connection approach is cost-effective. • Significant carbon savings and an attractive internal rate of return. • The holistic SLES design approach is replicable and it can be used as a guide. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

2. Meeting Net Zero Carbon Emission Targets: A case study tailored to local industry.

Author

Marques, Catarina, Turnell, Helen, Jones, Phil, Dunham, Chris, Fox, Matthew, Revesz, Akos, and Maidment, Graeme

Subjects
*CARBON emissions, *HEATING from central stations, *HEAT storage, *NATURAL resources, *MINE water, *HEAT recovery, *SOLAR power plants, *OFFSHORE wind power plants
Abstract

This paper demonstrates the opportunity for UK local authorities to utilise waste heat from local industry to accelerate their success with meeting net zero emissions targets. It presents the results of a feasibility study for an urban area in Yorkshire, UK aimed at driving clean growth and decarbonisation in local industry together with investment in low carbon energy systems. This is an ambient loop district heating network design with sharing of heating between buildings and heat recovery from a local industry source, including mine water. This adapts the GreenSCIES concept developed initially for Islington, London, tailored to local council demands and local industry energy sources. The scheme would be based on a low temperature heat network with large, decentralised heat pumps to raise temperatures to that required in the connected buildings/dwellings. The heat source is low-grade waste-heat from a local glassworks which is readily accessible with minimal disruption to 24/7 operations. The scheme considered thermal storage and the integration of a 20MW solar PV farm and a 10MW windfarm. The results show that that it is possible to decarbonise large parts of the borough including their social housing stock. In addition, using old mine workings as a means of storing and recovering heat, allows seasonal storage of heat to act both as back-up and top-up to the heat available from the glassworks. This novel approach uses natural resources and builds on local industry to accelerate economic regeneration paving the way to net zero carbon emissions. [ABSTRACT FROM AUTHOR]

Published
2023

3. Driving Success Towards Zero Carbon Energy Targets for UK's Local Authorities.

Author

Turnell, Helen, Marques, Cat, Jones, Phil, Dunham, Chris, Revesz, Akos, and Maidment, Graeme

Subjects
*WASTE heat, *ELECTRIC charge, *HEAT storage, *SERVER farms (Computer network management), *CARBON emissions, *HEAT recovery, *HOMESITES
Abstract

This paper draws on three recent case studies which have shown encouraging economic results in meeting net-zero carbon emissions targets through Smart Local Energy Systems (SLES) in different localities across England, based on the GreenSCIES model. The blueprint for the GreenSCIES SLES was developed in Islington, London, and consists of a 5th generation ambient loop district heat network using heat from a large data centre, also including electric vehicle charging, storage and solar PV. This allows for heat sharing between buildings and applications for heat recovery from local sources. In Sandwell, Birmingham, where the heating demand is nearly ten times higher than the cooling demand the design is based on a 4th generation heat network with waste heat from a local metal foundry and some cooling supply and heat storage in the aquifer. The design for a study in Barnsley, Sheffield, explored waste heat from a local glass factory and considered old mine workings as a means of storing and recovering heat, providing seasonal storage of heat for resilience to a single source industry. With additional work, the Barnsley scheme could be further expanded, increasing the available carbon emissions savings. These examples provide practical, feasible and economic SLES projects which demonstrate the importance of collaboration between researchers, local government and industry. They also illustrate how the original GreenSCIES concept can be adapted successfully to provide a pathway towards netzero carbon for a diverse range of urban locations with different housing density and waste heat sources. [ABSTRACT FROM AUTHOR]

Published
2023

Catalog

Books, media, physical & digital resources
See catalog results