| Title |
Comparative assessment of treated wastewater heat recovery into district heating system of the three Baltic capital cities / |
| Authors |
Ziemele, J ; Volkova, A ; Lotošov, E ; Murauskaitė, L ; Džiuvė, V |
| Full Text |
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| Is Part of |
ook of abstracts 17th Conference on sustainable development of energy, water and environment systems November 6-10 2022 Paphos, Cyprus.. Paphos. 2022, p. 348.. ISSN 2706-3690 |
| Abstract [eng] |
While all cities have great potential for sewage wastewater (WW) and treated WW, they are still an underutilised heat resource in many European cities, including the three Baltic capitals of Tallinn, Riga, and Vilnius. The aim of this study was to evaluate the integration of waste heat (WH) into a district heating (DH) system via absorption heat pumps. The study presents a threestep methodology that develops an innovative multi-dimensional approach to energy poverty analysis and includes the three main drivers of energy poverty: fuel prices, household income, and energy efficiency. The study shows that the integration of WH is economically feasible from the consumer's point of view and reduces energy poverty. It was concluded that the three capitals have a similar WW heat potential about 30 MW. Results show that the recovery of WH from treated WW by the introduction of an absorption heat pump increases the share of renewable energy sources (RES) in the fuel mix by 7.5%, 2.7%, and 9.4% for Tallinn, Riga, and Vilnius respectively, especially if natural gas combustion technologies are replaced. Riga has the lowest performance among the studied countries due to the considerable distance of the WW treatment plant from the main heating network of the DH system. |
| Published |
Paphos |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2022 |
