A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Waste heat and renewable energy integration in buildings
Highlights Pinch method modification overcomes time mismatch for thermal sources and sinks. Test building: multi-family residential, hydronic floor heating, air conditioning. Seasonal pinch temperature varies: 27.5 °C (Oct. to May), 47.5 °C (June to Sept.). Solutions: greywater separation, groundwater, thermal solar, heat pumping, storage. Economic and energy design analyses for test building; strategies for any building.
Abstract Buildings consume roughly a quarter of the annual global energy supply. Pinch analysis has been successfully applied to industrial processes, and more recently to locally integrated energy sectors. Pinch analysis minimizes the amount of energy that must be supplied to a process to achieve the desired outcome: products in the case of industries; occupant comfort and domestic hot water use in the case of buildings. For the first time pinch analysis is applied in an all-inclusive way to an individual building, integrating waste heat (e.g. greywater) and renewable energy (e.g. solar). A methodological novelty is added to the pinch analysis method to include both continuous and time dependent thermal sources and sinks. The usual hot stream to cold stream heat transfer is replaced as follows: hot stream reserve; hot stream to cold stream heat transfer; cold stream reserve. For a test building, the pinch temperature changes with time: 27.5 °C from October to May, 47.5 °C from June to September. The pinch temperature and its relationship to solar heating and heat pumping are discussed. Innovative design solutions and economic analyses are presented. Depending on the chosen design solution, primary energy (i.e. electricity) consumption can be reduced by 50%.
Graphical abstract Display Omitted
Waste heat and renewable energy integration in buildings
Highlights Pinch method modification overcomes time mismatch for thermal sources and sinks. Test building: multi-family residential, hydronic floor heating, air conditioning. Seasonal pinch temperature varies: 27.5 °C (Oct. to May), 47.5 °C (June to Sept.). Solutions: greywater separation, groundwater, thermal solar, heat pumping, storage. Economic and energy design analyses for test building; strategies for any building.
Abstract Buildings consume roughly a quarter of the annual global energy supply. Pinch analysis has been successfully applied to industrial processes, and more recently to locally integrated energy sectors. Pinch analysis minimizes the amount of energy that must be supplied to a process to achieve the desired outcome: products in the case of industries; occupant comfort and domestic hot water use in the case of buildings. For the first time pinch analysis is applied in an all-inclusive way to an individual building, integrating waste heat (e.g. greywater) and renewable energy (e.g. solar). A methodological novelty is added to the pinch analysis method to include both continuous and time dependent thermal sources and sinks. The usual hot stream to cold stream heat transfer is replaced as follows: hot stream reserve; hot stream to cold stream heat transfer; cold stream reserve. For a test building, the pinch temperature changes with time: 27.5 °C from October to May, 47.5 °C from June to September. The pinch temperature and its relationship to solar heating and heat pumping are discussed. Innovative design solutions and economic analyses are presented. Depending on the chosen design solution, primary energy (i.e. electricity) consumption can be reduced by 50%.
Graphical abstract Display Omitted
Waste heat and renewable energy integration in buildings
Reddick, Christopher (author) / Sorin, Mikhail (author) / Bonhivers, Jean-Christophe (author) / Laperle, Dominic (author)
Energy and Buildings ; 211
2020-01-18
Article (Journal)
Electronic Resource
English
Buildings , Solar , Heat pump , Greywater , Waste heat , Pinch analysis , Integration
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