Decarbonizing District Heating in EU-27+UK: How Much Excess Heat Is Available from Industrial Sites?

被引:32
作者
Manz, Pia [1 ]
Kermeli, Katerina [2 ]
Persson, Urban [3 ]
Neuwirth, Marius [1 ]
Fleiter, Tobias [1 ]
Crijns-Graus, Wina [2 ]
机构
[1] Fraunhofer Inst Syst & Innovat Res, D-76139 Karlsruhe, Germany
[2] Univ Utrecht, Copernicus Inst Sustainable Dev, NL-3584 CS Utrecht, Netherlands
[3] Halmstad Univ, Sch Business Innovat & Sustainabil, S-30118 Halmstad, Sweden
基金
欧盟地平线“2020”;
关键词
Industrial excess heat; district heating; heat decarbonization; geographic information system; spatial analysis; ROADMAP EUROPE; WASTE; RECOVERY; ENERGY; RESOURCE; EU;
D O I
10.3390/su13031439
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Energy-intensive industries across the EU-28 release unused heat into the environment. This excess heat can be utilized for district heating systems. However, this is the exception today, and the potential contribution to the decarbonization of district heating is not well quantified. An estimation of excess heat, based on industrial processes, and spatial matching to district heating areas is necessary. We present a georeferenced industrial database with annual production and excess heat potentials at different temperature levels matched with current and possible district heating areas. Our results show a total potential of 960 PJ/a (267 TWh/a) of excess heat when the exhaust gases are cooled down to 25 degrees C, with 47% of the 1.608 studied industrial sites inside or within a 10 km distance of district heating areas. The calculated potentials reveal that currently 230 PJ/a (64 TWh/a) of excess heat is available for district heating areas, about 17% of today's demand of buildings for district heating. In the future, widespread and low-temperature district heating areas increase the available excess heat to 258 PJ/a (72 TWh/a) at 55 degrees C or 679 PJ/a (189 TWh/a) at 25 degrees C. We show that industrial excess heat can substantially contribute to decarbonize district heating, however, the major share of heat will need to be supplied by renewables.
引用
收藏
页码:1 / 31
页数:34
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