Analysis of raw wastewater heat recovery in the TRNSYS modeling environment
DOI: https://doi.org/10.3846/mla.2026.27156Abstract
The potential for thermal energy recovery from wastewater in the climatic conditions of Vilnius city is analyzed using the TRNSYS modeling tool. The article examines how much heat can be recovered from domestic wastewater and to what extent this energy can be effectively used, contributing to increasing energy efficiency and implementing sustainable solutions. The numerical model was calibrated using real data obtained in a public facility, when experimental measurements were performed under various climatic and energy consumption conditions. Parametric analysis was performed during the modeling, allowing to assess the influence of the initial climatic data on the obtained results and the sensitivity of the model to these factors.
Article in Lithuanian.
Nevalytų nuotekų šilumos atgavimo analizė TRNSYS modeliavimo aplinkoje
Santrauka
Analizuojamas šiluminės energijos išgavimo iš nuotekų potencialas Vilniaus miesto klimato sąlygomis taikant TRNSYS modeliavimo priemonę. Straipsnyje nagrinėjama, kiek šilumos galima atgauti iš buitinių nuotekų bei kokiu mastu ši energija gali būti veiksmingai panaudota, prisidedant prie energinio efektyvumo didinimo ir tvarių sprendimų įgyvendinimo. Skaitmeninis modelis buvo kalibruotas naudojant realius duomenis, gautus viešosios paskirties objekte atlikus eksperimentinius matavimus esant įvairioms klimato ir energijos suvartojimo sąlygoms. Modeliuojant atlikta parametrinė analizė, leidžianti įvertinti pradinių klimato duomenų įtaką gautiems rezultatams ir modelio jautrumą šiems veiksniams.
Reikšminiai žodžiai: modeliavimas, atsinaujinantys energijos ištekliai, energija, šilumos siurblys, nuotakynas, pastato nuotekų šulinys, TRNSYS.
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modeling, renewable energy resources, energy, heat pump, sewage system, domestic sewage well, TRNSYSHow to Cite
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Copyright (c) 2026 The Author(s). Published by Vilnius Gediminas Technical University.
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Copyright (c) 2026 The Author(s). Published by Vilnius Gediminas Technical University.
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This work is licensed under a Creative Commons Attribution 4.0 International License.