Sheikh Khaleduzzaman Shah A Seasonal Thermal Energy Storage System for Space heating PhD, Year 2 Department of Infrastructure Engineering ORCID ID: 0000-0001-8806-2529

Introduction Summer research gap: Sun Cold water Hot water The International Energy Agency (IEA) 2016 reported that, with existing policy, energy demand would be increased rapidly by 70 % from 2013 to 2050. Cold water Research gap Outdoor in summer Hot water Fulfilling the high demand for space heating at residential buildings in cold climate zones. Solar collector Ground Boreholes Heat store at ground Research Aim To develop a seasonal thermal energy storage system for space heating in cold climate zones. Heat storage at vertical boreholes Water pump Water tank

Outcomes Winter research gap: Hot air Cold air Hot water Cold water A detach house in winter Outcomes Optimised design options which have minimum life cycle cost and minimum greenhouse gas emission. Outdoor temperature -5 °C (degree Celsius) Hot air Outdoor in winter Cold air Ground Boreholes Heat store at ground Hot water Cold water Heat extract from vertical boreholes Heat pump

Experimental setup at Burnley campus, The University of Melbourne Solar collector Experimental setup at Burnley campus, The University of Melbourne Outdoor temperature -5 °C (degree Celsius) 18 °C Hot air line Heat pump Power board Cold air line Heating of building Hot water tank Ground Valves board Water tank Cold air/water Hot air/water Borehole tubes Water pump Heating to building in winter Heat pump

Reference: IEA 2016, Energy Technology Perspectives 2016, access on 12 Aug 2017, https://www.iea.org/publications/freepublications/publication/EnergyTechnologyPerspectives2016_ExecutiveSummary_EnglishVersion.pdf Media Citations : Slide 2: Image: ‘Outdoor in summer’ in the Public Domain (CC0), accessed on 12 Aug 2017, https://pixabay.com/en/seasons-four-seasons-tree-nature-158601/ Image: ‘Sun’ in the Public Domain (CC0), accessed on 12 Aug 2017, https://pixabay.com/en/sun-mt-fuji-japan-landscape-2297961/ Image: ‘Solar collector’ in the Public Domain (CC0), accessed on 12 Aug 2017, https://pixabay.com/en/solar-water-heater-solar-water-331316/ Image: ‘Water pump’ in the Public Domain (CC0 ), accessed on 12 Aug 2017, https://pixabay.com/en/water-pump-industrial-industry-pump-835344/ Image: ‘Heat storage at vertical boreholes’, by author (student) Image: ‘Water tank’, by author (student) Slide 3:Image: ‘Outdoor in winter’ in the Public Domain (CC0), accessed on 12 Aug 2017, https://pixabay.com/en/seasons-four-seasons-tree-nature-158601/ Image: ‘A detach house in winter’, by Wayne stadler, 7 Feb 2015, Licensed under Creative Commons, CC BY-NC-ND 2.0, accessed on 12 Aug 2017, https://www.flickr.com/photos/waynerd/16170744893/ Image: ‘Heat extract from vertical boreholes’, by author (student) Image: ‘Heat pump’, by author (student ) Slide 4: Image: ‘heating to building in winter’, by author (student) Image: ‘Experimental setup at Burnley campus’, by author (student), 25 Jan 2017 Acknowledgements: With thanks to: A/Prof. Lu Aye, and Dr Behzad Rismanchi, Renewable Energy and Energy Efficiency Group, Department of Infrastructure Engineering, Melbourne school of Engineering, The University of Melbourne.