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dh_more [2014/01/15 14:48] – [District heating network] codina | dh_more [2023/11/16 15:21] (current) – external edit 127.0.0.1 | ||
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+ | ===== District heating network ===== | ||
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+ | The implementation of a district heating system depends on the heat demand density [kWh/ | ||
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+ | | ^Not suitable ^Limited ^Optimal ^ | ||
+ | ^Heat demand density [kWh/ | ||
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+ | The city of Genève has been selected as a model for calculating the environmental impact and cost of a district heating network. The information regarding the heat demand density [kWh/ | ||
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+ | ^Heat demand density [kWh/ | ||
+ | ^Area [km< | ||
+ | ^Number of buildings|378| | ||
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+ | Girardin [[# | ||
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+ | $L_{dn}=2(n_b-1)K\sqrt[]{ \frac{S_z}{n_b}}$ | ||
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+ | The estimated network length for the area in Genève would be 380 km. So taking into account the area, the heat demand density and the network length, it is possible to calculate the required meters of network per unit of heat: 118.3 m/ | ||
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+ | Olivier-Solà et al. [[# | ||
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+ | ^IPCC07-100a [kg CO< | ||
+ | ^Deposited waste [UBP]|21038| | ||
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+ | The life time of the static elements (pipes, trench and insulation) is assumed to be 50 years, while the life time for the pumps is 25 years. | ||
+ | ===== Sources ===== | ||
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+ | [1] [[http:// | ||
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+ | [2] J. Olivier-Solà, | ||
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+ | [3] L. Girardin, //A GIS-based Methodology for the Evaluation of Integrated Energy Systems in Urban Area//. PhD thesis, Ecole Polytechnique Federale de Lausanne, Switzerland, | ||
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+ | [4] S. Fazlollahi, G. Becker and F. Maréchal. Multi-Objectives, | ||
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+ | [5] [[http:// | ||