Is It Possible to Obtain More Energy from Solar DH Field? Interpretation of Solar DH System Data
Europe has a course to zero emissions by 2050, with a strong emphasis on energy sector. Due to climatic conditions in Latvia, district heating (DH) plays an important role in the energy sector. One of the solutions to achieve the set goals in DH is to introduce emission-free technology. Therefore, t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2021-01-01
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| Series: | Environmental and Climate Technologies |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/rtuect-2021-0097 |
| _version_ | 1819093656244584448 |
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| author | Kaķis Roberts Poļikarpova Ilze Pakere Ieva Blumberga Dagnija |
| author_facet | Kaķis Roberts Poļikarpova Ilze Pakere Ieva Blumberga Dagnija |
| author_sort | Kaķis Roberts |
| collection | DOAJ |
| description | Europe has a course to zero emissions by 2050, with a strong emphasis on energy sector. Due to climatic conditions in Latvia, district heating (DH) plays an important role in the energy sector. One of the solutions to achieve the set goals in DH is to introduce emission-free technology. Therefore, the popularity of installation of large-scale solar collector plants continues to increase in DH in Europe. The first large-scale solar collector field in the Baltic States was installed in 2019. Solar collector active area is 21 672 m2 with heat storage water tank 8000 m3. The article shows the first operation results of this system and evaluates influencing factors. The results of the analysis show that system productivity is mainly demanded by solar radiation, and the strongest correlation between these parameters were established in May. The highest correlation between ambient air temperature and produced thermal energy is reached when ambient air temperature is between 7 °C to 15 °C and production process has not been externally regulated. The temperature difference between flow and return temperatures of the heat carrier affect solar collector performance minimally and strong correlation was not observed. |
| first_indexed | 2024-12-21T23:14:59Z |
| format | Article |
| id | doaj.art-28e8fe376a6c45d5ad1af05dde8173e7 |
| institution | Directory Open Access Journal |
| issn | 2255-8837 |
| language | English |
| last_indexed | 2024-12-21T23:14:59Z |
| publishDate | 2021-01-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Environmental and Climate Technologies |
| spelling | doaj.art-28e8fe376a6c45d5ad1af05dde8173e72022-12-21T18:46:57ZengSciendoEnvironmental and Climate Technologies2255-88372021-01-012511284129210.2478/rtuect-2021-0097Is It Possible to Obtain More Energy from Solar DH Field? Interpretation of Solar DH System DataKaķis Roberts0Poļikarpova Ilze1Pakere Ieva2Blumberga Dagnija3Riga Technical University, Institute of Energy Systems and Environment, Azenes iela 12/1, Riga, LV-1050, LatviaRiga Technical University, Institute of Energy Systems and Environment, Azenes iela 12/1, Riga, LV-1050, LatviaRiga Technical University, Institute of Energy Systems and Environment, Azenes iela 12/1, Riga, LV-1050, LatviaRiga Technical University, Institute of Energy Systems and Environment, Azenes iela 12/1, Riga, LV-1050, LatviaEurope has a course to zero emissions by 2050, with a strong emphasis on energy sector. Due to climatic conditions in Latvia, district heating (DH) plays an important role in the energy sector. One of the solutions to achieve the set goals in DH is to introduce emission-free technology. Therefore, the popularity of installation of large-scale solar collector plants continues to increase in DH in Europe. The first large-scale solar collector field in the Baltic States was installed in 2019. Solar collector active area is 21 672 m2 with heat storage water tank 8000 m3. The article shows the first operation results of this system and evaluates influencing factors. The results of the analysis show that system productivity is mainly demanded by solar radiation, and the strongest correlation between these parameters were established in May. The highest correlation between ambient air temperature and produced thermal energy is reached when ambient air temperature is between 7 °C to 15 °C and production process has not been externally regulated. The temperature difference between flow and return temperatures of the heat carrier affect solar collector performance minimally and strong correlation was not observed.https://doi.org/10.2478/rtuect-2021-0097district heatinglarge scale solar collector fieldregression analyses |
| spellingShingle | Kaķis Roberts Poļikarpova Ilze Pakere Ieva Blumberga Dagnija Is It Possible to Obtain More Energy from Solar DH Field? Interpretation of Solar DH System Data Environmental and Climate Technologies district heating large scale solar collector field regression analyses |
| title | Is It Possible to Obtain More Energy from Solar DH Field? Interpretation of Solar DH System Data |
| title_full | Is It Possible to Obtain More Energy from Solar DH Field? Interpretation of Solar DH System Data |
| title_fullStr | Is It Possible to Obtain More Energy from Solar DH Field? Interpretation of Solar DH System Data |
| title_full_unstemmed | Is It Possible to Obtain More Energy from Solar DH Field? Interpretation of Solar DH System Data |
| title_short | Is It Possible to Obtain More Energy from Solar DH Field? Interpretation of Solar DH System Data |
| title_sort | is it possible to obtain more energy from solar dh field interpretation of solar dh system data |
| topic | district heating large scale solar collector field regression analyses |
| url | https://doi.org/10.2478/rtuect-2021-0097 |
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