Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171

Project CALEBRE

  • Project CALEBRE

    CALEBRE is one of the largest national research projects to address the domestic refurbishment challenge

  • Project CALEBRE

    Solid walls mean over one third of the UK’s homes are hard to refurbish for energy efficiency

  • Project CALEBRE

    We need technological solutions that are appealing to householders and easy to retrofit

Introducing CALEBRE

"CALEBRE is an example of how we are connecting academic endeavour with
policy implementation at the very front line."

Steve Jones, Department of Energy and Climate Change

Over one third of the UK’s housing stock poses a challenge - its solid wall construction means it is classed as hard to treat. To further support refurbishment, we need technological solutions that appeal to householders and are easy to retrofit. These issues have been investigated in CALEBRE, one of the largest national research projects to address the domestic refurbishment challenge.

This website provides you with the opportunity to view presentations from the launch event, and download the CALEBRE Briefing Notes, a set of summary documents that present key findings on the following:

  • Householder perspectives (appetite for improvement, and tolerance for change)
  • Heat pumps for ease of retrofit
  • Achieving higher levels of airtightness in existing dwellings - how difficult is this?
  • Ventilation Heat Recovery systems and airtightness
  • Does the order of retrofit matter for energy and carbon reduction?

CALEBRE makes an invaluable contribution to the growing body of knowledge that can support UK Government and industry in achieving reduced energy demand by the UK housing stock. The research streams it initiated are continuing in order to commercialise the technologies investigated, and address wider questions related to building energy refurbishment.

About CALEBRE

About CALEBRE

Project CALEBRE (Consumer-Appealing Low Energy technologies for Building Retrofitting) is an E.ON / Research Councils UK-funded research project involving a partnership of six leading UK universities, led by Loughborough University.

Over 4.5 years (October 2008-April 2013), CALEBRE investigated a selection of technologies, specifically from the perspective of domestic refurbishment. These technologies range from the well-known (heat pumps and MVHR) through to new and emerging (vacuum glazing) and on to blue skies (advanced surface treatments). Alongside these, the project has gathered important insights into consumer perspectives surrounding refurbishment.

Launch event

On Friday 15 March 2013 in Westminster, key findings of Project CALEBRE were presented to a select audience to support refurbishment practices, policy and future research.

View the launch presentations below.

video

Welcome Hywell Davies
Technical Director
Chartered Institution of Building Services Engineers

video

Green Deal: Policy, Perspective and ImpactSteve Jones
Team Leader, Green Deal Measures and Installers
Department of Energy and Climate Changes

video

The Consumer PerspectivePeter Broad
Policy Manager (Energy)
Consumer Focus

video

Project CALEBREProfessor Dennis Loveday
Loughborough University

video

Responses from industry and research


Venue

Outputs

Outputs generated by Project CALEBRE to date.

Books and journal papers

Agyenim, F., Hewitt, N. (2010). The development of a finned phase change material (PCM) storage system to take advantage of off-peak electricity tariff for improvement in cost of heat pump operation, Energy and Buildings, Volume 42, Issue 9, September 2010, Pages 1552-1560

Banfill, P.F.G., Simpson, S.A., Haines, V.J. and Mallaband, R.A.L. (2012). Energy-led retrofitting of solid wall dwellings – technical and user perspectives on airtightness. Structural Survey, 30 (3) 267-279.

Fang, Yueping, Hyde, Trevor and Hewitt, Neil (2010). Predicted thermal performance of triple vacuum glazing. Solar Energy, 84 (12). pp. 2132-2139.

Gillott, M, (2011). Riqualificare o non riqualificare, questo e il problema. In: Davoli, P, ed., Il recupero energetic ambientale del costruito Maggioli Editore

Gillott, M., Rodrigues, L., Spataru C. (2010). Low Carbon Housing Design Informed by Research, Journal of Institution of Civil Engineers, (Special Issue: Engineering Sustainability) Proceedings of the Institution of Civil Engineers-Engineering Sustainablity Vol.163, Issue2, pages 77-87 June 2010.

Gillott, M., Spataru, C. (2009). Best practice in the refurbishment of existing buildings, in Hall, M.R. (Ed.), Materials for Energy Efficiency & Thermal Comfort in Buildings, Woodhead Publishing, Cambridge. pp. 649-680

Haines, V.J.A., Mitchell, V.A. and Mallaband, R.A.L. (2012). Merging a practice-orientated approach with an engineering-driven product development: A case study on home improvement. Journal of Design Research. Special issue on Design, Sustainability and Behaviour, 10 (1/2) 28-49

Hall, M.R. (Ed.) (2010). Materials for Energy Efficiency & Thermal Comfort in Buildings, Woodhead Publishing, Cambridge

Hall, M.R., Allinson D. (2010). Chapter 1: Heat & mass transport processes in building materials, in Hall, M.R. (Ed.), Materials for Energy Efficiency & Thermal Comfort in Buildings, Woodhead Publishing, Cambridge

Hall, M.R. (2010) Chapter 14: Hygrothermal materials for heat and moisture control in buildings, in Hall, M.R. (Ed.), Materials for Energy Efficiency & Thermal Comfort in Buildings, Woodhead Publishing, Cambridge

Hall, M.R., Tsang, S.C.E., Casey, S.P., Khan, M.A., Yang, H. (2012). Synthesis, characterization and hygrothermal behaviour of mesoporous silica high-performance desiccants for relative humidity buffering in closed environments, Acta Materialia, 60(1), January 2012, Pages 89-101.

Hewitt, N.J. (2010). Heat pumps and energy storage – The challenges of implementation, Applied Energy, 89(1), p.37-44.

Hewitt, N.J., Huang, M.J., Anderson, M., Quinn, M. (2011). Advanced air source heat pumps for UK and European domestic buildings, Applied Thermal Engineering, 31(17-18), p.3713-19

Spataru, C., Gillott, M., Hall, M. (2010). Domestic Energy and Occupancy – A Novel Post-Occupancy Evaluation Study, International Journal of Low Carbon Technologies, Vol. 5, pp. 148-157

Spataru, C., Gillott, M. (2010). The Use of Intelligent Systems for Monitoring Energy Use and Occupancy in Existing Homes, Springer Smart Innovation, Systems and Technologies series, ed. Robert J. Howlett and Lakhami C. Jain Heidelberg, 2010

Spataru, C. and Gillott, M. (2011). The Use of Intelligent Systems for Monitoring Energy Use and Occupancy in Existing Homes. In: Howlett, R.J., Jain, L.C. and Lee, S.H. (Eds), Sustainability in Energy and Buildings, Springer, 245-254

Spataru, C. and Gillott, M. (2011). The use of intelligent systems for monitoring energy use and occupancy in existing homes. Intelligent Buildings International. 3(1), 24-31

Spataru, C. and Gillott, M. (2012). Using a RTL system based on RFID technology for monitoring occupants domestic energy use and behaviour. In: M’Sirdi, N., Namaane, A., Howlett, R.J. and Jain, L.C., (Eds), Sustainability in Energy and Buildings. Springer Verlag

Vadodaria, K., Loveday, D.L., and Haines, V., Measured winter and spring-time indoor temperatures in UK homes over the period 1969 to 2010: a review and analysis. Energy Policy, accepted July 2013.

Conferences and seminars

Arya, F., Fang, Y. and Hyde, T., (2012). Fabrication and characterization of triple vacuum glazing at low temperature using an indium-based seal. In: Proceedings of the Energy and Material Research Conference, EMR, Malaga, June 2012. Florida: Brown Walker Press, pp. 521-524.

Banfill, P.F.G., Simpson, S.A., Gillott, M.C., White, J. (2011) Mechanical ventilation and heat recovery for low carbon retrofitting in dwellings, Proceedings of the World Renewable Energy Congress 2011, Linköping, Sweden.

Banfill, P.F.G., Simpson, S.A., Gillott, M.C., White, J. (2011) The potential for energy saving in existing solid wall dwellings through mechanical ventilation and heat recovery, Proceedings of ECEEE 2011 Summer Study on energy efficiency, France

Banfill, P.F.G., Simpson, S.A., Haines, V.J. and Mallaband, R.A.L. (2011). Energy-led retrofitting of solid wall dwellings – technical and user perspectives on airtightness, COBRA 2011, Proceedings of RICS Construction and Property Conference, University of Salford, (Ruddock, L., Chynoweth, P., editors) 430-440.

Burris, A., Mitchell, V., Haines, V.J.A. (2011) An Interdisciplinary Approach to Domestic Comfort, PRISM Conference, Gloucester, UK, 19-20 May 2011.

Burris, A., Mitchell, V. and Haines, V.J.A. (2012). Exploring Comfort in the Home: Towards an Interdisciplinary Framework for Domestic Comfort. IN: Proceedings of 7th Windsor Conference (Network for Comfort and Energy Use in Buildings) - The changing context of comfort in an unpredictable world, Windsor, UK, 12-15 April 2012. 13pp.

Critoph, R.E., Metcalf, S.J. (2009) Sorption Energy / UW Development of a Domestic Gas-fired Heat Pump, Heat Powered Cycles Conference 2009, TU Berlin, 7-9 September 2009.

Fang, Yueping, Hyde, Trevor and Hewitt, Neil (2010). The influence of emittance of low-emittance coating on the thermal performance of triple vacuum glazing. In: The second IASTED International conference on solar energy. IASTED. 8 pp.

Fang, Yueping, Hyde, Trevor and Hewitt, Neil (2011) The Influence of Insolation on the Thermal Performance of Triple Vacuum Glazing. In: Glass Performance Days (GPD) International Conference, Tampere Finland, 4 pp.

Critoph, R.E. (2010) A 4-bed Carbon-Ammonia Gas-Fired Heat Pump Concept – Technical Overview and Potential for Carbon Reduction, World Renewable Energy Congress XI, Abu Dhabi, UAE, 25-30 September 2010.

Critoph, R.E., Metcalf, S.J. (2011) Progress in the development of a carbon-ammonia adsorption gas-fired domestic heat pump, Proceedings of the Int. Sorption Heat Pump Conference, Padua, 5-7 April 2011.

Gillott, M., Spataru, C., Hall, M., (2009) Domestic Energy and Occupancy A Novel Post-Occupancy Evaluation Study, 8th International Conference on Sustainable Energy Technologies, Eurogress, Aachen, Germany, 31 August – 3 September 2009.

Haines, V.J.A. (2010) Invited presentation entitled “A user-centred approach to understanding energy behaviours” containing initial CALEBRE and other project findings. At Midlands Energy Graduate School event: Social sciences research for a low carbon future, University of Nottingham, 29 April 2010.

Haines, V.J.A., Mitchell, V.A. AND Mallaband, R.A.L. (2010) Using a Practice-Orientated Approach to Inform the Design of Energy Efficiency Measures for Older Homes. ERSCP-EMSU Conference, Delft, 25-28 October 2010. Pages 1-17.

Hewitt, N.J. (2010) Built Environment Energy Storage – The Challenges for Heat Pumps and Air-Conditioning, World Renewable Energy Congress XI, Abu Dhabi, UAE, 25-30 September 2010.

Hewitt, N.J. (2010) The necessary development of smart energy networks to maximise renewable energy integration, 9th International Conference on Sustainable Energy Technologies (SET2010), Shanghai Jiao Tong University, China, 24-27 August 2010.

Hewitt, N.J. (2010) Heat Pumps and Energy Storage – The Challenges of Implementation, Sustainable Thermal Energy Management Conference (SusTEM2010), Great North Museum, Newcastle upon Tyne, UK, 3 November 2010.

Hewitt, N.J., Critoph, R.E. (2011) The future of efficient heat pumps for home retrofits, CIBSE Technical Symposium, 2011, De Montfort University, Leicester, UK, 6-7 September 2011.

Hewitt, N.J., Colclough, S., Huang, M.J., Griffiths, P.W. (2011) High temperature lift retrofit heat pumps for upgrading district heating and seasonal thermal energy stores, 23rd IIR International Congress of Refrigeration, Prague, 21-26 August 2011.

Hewitt, N.J. (2010) Advanced Air Source Heat Pumps for UK and European Domestic Buildings, 9th International Conference on Sustainable Energy Technologies (SET2010), Shanghai Jiao Tong University, China, 24-27 August 2010.

Huang, M.J., Hewitt, N.J. (2011) Prediction of phase change material heat storage for air source heat pump application, 23rd IIR International Congress of Refrigeration, Prague, 21-26 August 2011.

Kouhestani M., Hewitt, N.J., Huang, M.J. (2011) Exergy analysis of a combined compressor expander heat pump, 23rd IIR International Congress of Refrigeration, Prague, 21-26 August 2011.

Kouhestani, M., Hewitt, N.J., Huang, M.J. (2011) Developing a combined compressor expander heat pump- experimental evaluation of the compressor and expander, 23rd IIR International Congress of Refrigeration, Prague, 21-26 August 2011.

Limbachiya, V., Vadodaria, K., Loveday, D. and Haines, V.J.A. (2012). Identifying a suitable method for studying thermal comfort in people’s homes. In: Proceedings of 7th Windsor Conference (Network for Comfort and Energy Use in Buildings) - The changing context of comfort in an unpredictable world, Windsor, UK, 12-15 April 2012. 15pp.

Loveday, D., Vadodaria, K., Haines, V., Hewitt, N.J., Hyde, T., Griffiths, P., Critoph, B., Eames, P., Banfill, P.F.G., Gillott, M., Darlington, R., Hall, M., Tsang, E. (2011) Refurbishing the UK’s ‘hard to treat’ dwelling stock: Understanding challenges and constraints – the work of Project CALEBRE, CIBSE Technical Symposium, 2011, De Montfort University, Leicester, UK, 6-7 September 2011.

Mallaband, R.A., Haines, V.J.A. and Mitchell, V.A. (2012). Barriers to domestic retrofit – learning from past home improvement experiences. Retrofit 2012. University of Salford, 24-26 January 2012.

Mallaband,B., Haines, V. and Mitchell, V. (2013). Exploring Past Home Improvement Experiences to Develop Future Energy Saving Technologies. Methods for Studying Technology in the Home Workshop, ACM SIGCHI Conference on Human Factors in Computing Systems (CHI), Paris, France 27th April – 2nd May 2013

Nagijew, E., Gillott, M., Wilson, R., (2013).  A Qualitative Comparison of Unobtrusive Domestic Occupancy Measurement Technologies. In:  Anne Hakansson, Mattias Höjer, Robert J. Howlett, Lakhmi C Jain eds. Sustainability in Energy and Buildings. Springer Verlag. Proceedings of the 4th International Conference in Sustainability in Energy and Buildings (SEB´12).  ISBN: 978-3-642-36644-4 (Print) 978-3-642-36645-1 (Online)

Quinn, M.V., Hewitt, N.J., Smyth, M. (2011) Comparison of the conventional and economised vapour injection refrigeration cycles utilising variable speed capacity control for domestic heat pump retrofit applications, 23rd IIR International Congress of Refrigeration, Prague, 21-26 August 2011.

Shahn, N., Hewitt, N.J., Huang, M.J. (2011) A review of diesel engine driven heat pumps (DEHPs) and the potential in the UK domestic sector, 23rd IIR International Congress of Refrigeration, Prague, 21-26 August 2011.

Spataru, C., Gillott, M. (2010) Restoring existing buildings and slowing climate change through a practical case study, SET Conference 2010, China, 24-27 August 2010.

Spataru, C., Gillott, M. (2010) Temperature Distribution and Comfort Responses as a Result of Climate Change Impacts on Buildings, Proceedings of the 3rd International Conference of Passive & Low Energy Cooling for the Built Environment (PALENC 2010) and the 5th European Conference on Energy Performance & Indoor climate in Buildings (EPIC 2010), Rhodes, Greece, 29 September – 1 October, 2010.

Spataru, C., Gillott, M., (2010) The Use of Intelligent Systems for Monitoring Energy Use and Occupancy in Existing Homes, Sustainability in Energy and Buildings 2010 Conference, Brighton, 5-7 May 2010.

Vadodaria, K., Loveday, D., Haines, V.J.A., Mitchell, V., Mallaband, B., Bayer, S. (2010) UK solid-wall dwellings – thermal comfort, energy efficiency refurbishment and the user perspective – some preliminary analysis from the CALEBRE project, Proceedings of Conference: Adapting to Change: New Thinking on Comfort, Cumberland Lodge, Windsor, UK, 9-11 April 2010. London: Network for Comfort and Energy Use in Buildings

Vadodaria, K., Loveday, D., Hodder, S., Gillott, M., Spataru, C. (2010) Energy efficient retrofit technologies for existing homes and its impact on thermal comfort – initial findings from the CALEBRE project, Proceedings of Conference: CLIMA 2010:10th Rehva World Congress – Sustainable Energy Use in Buildings, Antalya, Turkey, 9-12 May 2010.

CALEBRE in the media

'Ulster's 'Pamela' Is No Dummy': News release, 12 March 2010, University of Ulster

RIBA Sustainable Retrofitting Seminar, Brighton, Dec 2008

Green REFURB Symposium, University of Nottingham, Nov 2008

ECOBUILD 2009 (Retrofit seminar) and 2010 (CEH seminar)

BBC Radio Wales, BBC Radio Nottingham, Trent FM

BBC Breakfast

BBC News 24

BBC NEWS Website

ITV Central News

BBC East Midlands Today

Reuters News Channel

Contact

To find out more about Project CALEBRE, please contact

Professor Dennis Loveday
Loughborough University
T: +44 (0)1530 228736
E: D.L.Loveday@lboro.ac.uk

To order copies of the CALEBRE Briefing Notes, please complete the form below.

Fill out my online form.
Video