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A house with energy coming out of it.

£1.6m grant to improve building façade technologies for better energy efficiency

A project to create new technologies to improve the energy efficiency of buildings is set to get underway as a group of researchers from Loughborough University, the University of Nottingham and University of Exeter have been awarded a £1.65m grant from the EPSRC (Engineering and Physical Sciences Research Council).

Professor Philip Eames, of the School of Mechanical, Electrical and Manufacturing Engineering, will develop low cost optical components that can be integrated into conventional double glazing to provide comfortable annual daylight levels in buildings and reduce their annual energy consumption from annual artificial lighting, heating and cooling by more than 30%.

Buildings currently account for over 40% of total UK energy consumption and a similar percentage of the UK CO2 emissions.

With this new technology, thermal resistance will be increased and solar heat gain better controlled, enabling windows to perform better than walls on a yearly basis in terms of their useful net energy balance.

Holistic approach

The project, which is being led by Nottingham’s Dr Yupeng Wu, will adopt a ‘holistic approach’ to developing advanced façade technologies to achieve building energy reduction goals.

Glazed façades play an important role in determining a building’s energy performance and perform a range of, sometimes conflicting, functions.

They regulate heat transfer to and from the external environment by radiation (solar and long wave), conduction and convection. They also allow natural daylight into the space and improve the way buildings look externally.

Improving the energy performance of windows and other openings in a building can make a significant contribution to reducing building energy loads.

The team’s target is for a typical commercial building incorporating the novel glazed façade systems to provide comfortable annual daylight levels while achieving over a 20% reduction in annual artificial lighting energy consumption, space heating reductions of over 30% in the heating season and cooling load reductions of 20% in summer.

Advanced glazing

Four types of advanced glazing are being developed with input from industry partners to ensure the solutions developed will be a viable option for commercial building designers.

The new products being developed would be suitable replacements for current transparent glazing systems, offering building energy reduction through enhanced thermal resistance and optimised daylight transmittance.

By recognising the range of functions played by different areas of the façade, it is possible to tailor strategies to match.

For example, those areas where view is less important can use active coatings that vary the transmission and scattering of light to direct daylight deeper into rooms, or integrate solar technologies to generate electricity or capture useful heat.

Professor Eames and Dr Wu will be working alongside Professor Tapas Mallick from Exeter University on the project.

Professor Eames commented: “It is great to be working with Dr Wu and Professor Mallick on this very important project. The ambitious goals are to develop a range of new façade systems that can contribute to reducing building end use energy demand.

“The project takes full advantage of the expertise and facilities at the three universities and includes a good mix of modelling, materials research, prototype system development and characterisation.”

Dr Wu added: “We’re delighted to receive this grant. The integration in a façade system of active solar energy technologies with better performing windows paves the way for commercial buildings to become net energy producers on an annual basis.”

Notes for editors

Press release reference number: 19/40

The industry partners on this project are: Couch Perry Wilkes: an environmental building services consultancy, Elementa: specialised in low energy building design, MDelta Ltd: thermal solutions, Brinell Vision: a designer/manufacturer of thin film optics.

Loughborough University

Loughborough University is equipped with a live in-house broadcast unit via the Globelynx network. To arrange an interview with one of our experts please contact the press office on 01509 223491. Bookings can be made online via www.globelynx.com

Loughborough is one of the country’s leading universities, with an international reputation for research that matters, excellence in teaching, strong links with industry, and unrivalled achievement in sport and its underpinning academic disciplines.

It has been awarded five stars in the independent QS Stars university rating scheme, named the best university in the world for sports-related subjects in the 2018 QS World University Rankings, top in the country for its student experience in the 2018 THE Student Experience Survey and named University of the Year by The Times and Sunday Times University Guide 2019 and the Whatuni Student Choice Awards 2018.

Loughborough is in the top 10 of every national league table, being ranked 4th in the Guardian University League Table 2019, 5th in the Times and Sunday Times Good University Guide 2019 and 7th in The UK Complete University Guide 2019. It was also named Sports University of the Year by The Times and Sunday Times Good University Guide 2017.

Loughborough is consistently ranked in the top twenty of UK universities in the Times Higher Education’s ‘table of tables’ and is in the top 10 in England for research intensity. In recognition of its contribution to the sector, Loughborough has been awarded seven Queen's Anniversary Prizes.

The Loughborough University London campus is based on the Queen Elizabeth Olympic Park and offers postgraduate and executive-level education, as well as research and enterprise opportunities.

It is home to influential thought leaders, pioneering researchers and creative innovators who provide students with the highest quality of teaching and the very latest in modern thinking.

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