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Analysis of Medium-Scale Solar Thermal Systems and Their Potential in Lithuania

Author

Listed:
  • Rokas Valančius

    (Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Studentų str. 48, Kaunas LT-44029, Lithuania)

  • Andrius Jurelionis

    (Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Studentų str. 48, Kaunas LT-44029, Lithuania)

  • Rolandas Jonynas

    (Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentų str. 56, Kaunas LT-51424, Lithuania)

  • Vladislovas Katinas

    (Laboratory of Renewable Energy, Lithuanian Energy Institute, Breslaujos str. 3, Kaunas LT-44403, Lithuania)

  • Eugenijus Perednis

    (Laboratory of Renewable Energy, Lithuanian Energy Institute, Breslaujos str. 3, Kaunas LT-44403, Lithuania)

Abstract

Medium-scale solar hot water systems with a total solar panel area varying from 60 to 166 m 2 have been installed in Lithuania since 2002. However, the performance of these systems varies depending on the type of energy users, equipment and design of the systems, as well as their maintenance. The aim of this paper was to analyse operational SHW systems from the perspective of energy production and economic benefit as well as to outline the differences of their actual performance compared to the numerical simulation results. Three different medium-scale solar thermal systems in Lithuania were selected for the analysis varying in both equipment used (flat type solar collectors, evacuated tube collectors) and type of energy user (swimming pool building, domestic hot water heating, district heating). The results of the analysis showed that in the analysed cases the gap between measured and modelled data of heat energy produced by SHW systems was approx. 11%. From the economical perspective, the system with flat type solar collectors used for domestic hot water production was proved to be most efficient. However, calculation of Internal Rate of Return showed that a grant of 35% is required for this project to be fully profitable.

Suggested Citation

  • Rokas Valančius & Andrius Jurelionis & Rolandas Jonynas & Vladislovas Katinas & Eugenijus Perednis, 2015. "Analysis of Medium-Scale Solar Thermal Systems and Their Potential in Lithuania," Energies, MDPI, vol. 8(6), pages 1-13, June.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:6:p:5725-5737:d:51203
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    References listed on IDEAS

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    1. Alexandre Hugo & Radu Zmeureanu, 2012. "Residential Solar-Based Seasonal Thermal Storage Systems in Cold Climates: Building Envelope and Thermal Storage," Energies, MDPI, vol. 5(10), pages 1-14, October.
    2. Lauterbach, C. & Schmitt, B. & Jordan, U. & Vajen, K., 2012. "The potential of solar heat for industrial processes in Germany," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(7), pages 5121-5130.
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    Cited by:

    1. Esteban Zalamea-Leon & Edgar A. Barragán-Escandón & John Calle-Sigüencia & Mateo Astudillo-Flores & Diego Juela-Quintuña, 2021. "Residential Solar Thermal Performance Considering Self-Shading Incidence between Tubes in Evacuated Tube and Flat Plate Collectors," Sustainability, MDPI, vol. 13(24), pages 1-17, December.
    2. Paris A. Fokaides & Rasa Apanaviciene & Jurgita Černeckiene & Andrius Jurelionis & Egle Klumbyte & Vilma Kriauciunaite-Neklejonoviene & Darius Pupeikis & Donatas Rekus & Jolanta Sadauskiene & Lina Sed, 2020. "Research Challenges and Advancements in the field of Sustainable Energy Technologies in the Built Environment," Sustainability, MDPI, vol. 12(20), pages 1-20, October.
    3. Víctor Echarri-Iribarren & Carlos Rizo-Maestre & Fernando Echarri-Iribarren, 2018. "Healthy Climate and Energy Savings: Using Thermal Ceramic Panels and Solar Thermal Panels in Mediterranean Housing Blocks," Energies, MDPI, vol. 11(10), pages 1-32, October.

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