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Optimisation of a Swedish district heating system with reduced heat demand due to energy efficiency measures in residential buildings

Åberg, M. ; Henning, D.

Energy policy, 2011-12, Vol.39 (12), p.7839-7852 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

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Título:
Optimisation of a Swedish district heating system with reduced heat demand due to energy efficiency measures in residential buildings
Autor: Åberg, M. ; Henning, D.
Assuntos: Applied sciences ; Building technical equipments ; Buildings ; Buildings. Public works ; carbon dioxide ; Carbon emissions ; Climate change ; coal ; Computational efficiency ; Computing time ; Demand ; District heating ; District heating and refrigerating ; Electric power ; Electricity ; Electricity generation ; Energy ; Energy consumption ; Energy economics ; Energy efficiency ; Energy efficiency measures ; Energy industry ; Energy management and energy conservation in building ; Energy market ; Energy policy ; Energy resources ; Energy. Thermal use of fuels ; Environmental engineering ; environmental impact ; Environmental impact analysis ; Europe ; Exact sciences and technology ; General. Economical aspects ; Green buildings ; greenhouse gas emissions ; heat ; Heating ; Heating and ventilation ; heating systems ; Heating, air conditioning and ventilation ; Housing market ; Industrial plant emissions ; Linkoping ; Low-energy residential buildings ; Optimization ; Power plants ; Production ; Reduction ; residential housing ; Space heating. Hot water ; Studies ; Sweden ; system optimization
É parte de: Energy policy, 2011-12, Vol.39 (12), p.7839-7852
Notas: http://dx.doi.org/10.1016/j.enpol.2011.09.031
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Descrição: The development towards more energy efficient buildings, as well as the expansion of district heating (DH) networks, is generally considered to reduce environmental impact. But the combined effect of these two progressions is more controversial. A reduced heat demand (HD) due to higher energy efficiency in buildings might hamper co-production of electricity and DH. In Sweden, co-produced electricity is normally considered to displace electricity from less efficient European condensing power plants. In this study, a potential HD reduction due to energy efficiency measures in the existing building stock in the Swedish city Linköping is calculated. The impact of HD reduction on heat and electricity production in the Linköping DH system is investigated by using the energy system optimisation model MODEST. Energy efficiency measures in buildings reduce seasonal HD variations. Model results show that HD reductions primarily decrease heat-only production. The electricity-to-heat output ratio for the system is increased for HD reductions up to 30%. Local and global CO 2 emissions are reduced. If co-produced electricity replaces electricity from coal-fired condensing power plants, a 20% HD reduction is optimal for decreasing global CO 2 emissions in the analysed DH system. ► A MODEST optimisation model of the Linköping district heating system is used. ► The impact of heat demand reduction on heat and electricity production is examined. ► Model results show that heat demand reductions decrease heat-only production. ► Local and global CO 2 emissions are reduced. ► The system electricity-to-heat output increases for reduced heat demand up to 30%.
Editor: Kidlington: Elsevier Ltd
Idioma: Inglês

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Optimisation of a Swedish district heating system with reduced heat demand due to energy efficiency measures in residential buildings

Åberg, M. ; Henning, D.

Kidlington: Elsevier Ltd

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