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Comparison of control strategies for efficient thermal energy storage to decarbonize residential buildings in cold climates: A focus on solar and biomass sources
Ontario Tech Univ, Dept Mech & Mfg Engn, Oshawa, ON, Canada..
KTH Royal Inst Technol, Dept Civil & Architectural Engn, Stockholm, Sweden..
Univ Pittsburgh Bradford, Engn Technol & Energy Programs, Div Phys & Computat Sci, Bradford, PA 16701 USA..
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH Royal Inst Technol, Dept Civil & Architectural Engn, Stockholm, Sweden.ORCID iD: 0000-0002-9361-1796
2024 (English)In: Renewable energy, ISSN 0960-1481, E-ISSN 1879-0682, Vol. 220, article id 119681Article in journal (Refereed) Published
Abstract [en]

This work presents novel energy production/storage/usage systems to reduce energy use and environmental effects, in order to address concerns about excessive heating demand/emissions in buildings. This focus is the design, control, and comparison of a biomass-fired model with a novel heater type and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump. The heater has an external boiler and shell and tube heat exchanger, providing enhanced control over the combustion process and increased efficiency. Another feature of the present work is establishing a rule-based automation framework to manage the energy storage/flow among the components/grid/building. This smart integration reduces the size of the components, eliminates the need for a battery, and allows the system to interact in both directions with the electricity grid. The practicality of both systems is assessed and compared via a code developed in TRNSYS-MATLAB, considering the specific conditions of Toronto, Canada, characterized by high heat demand in winter. According to the results, the proposed solar-based system has an acceptable energy cost (78.9 USD per MWh of heating and electricity) attributable to the developed controllers applied to thermal energy storage. The results show that the PVT-based system integrated with a heat pump is environmentally superior, with a reduction in CO2 emission of 7.2 tonnes over a year. However, the biomass-fired system is an excellent option from the aspect of efficiency, with a relatively high energy efficiency of 69 %. Also, it is observed that the night set-back of the supply temperature can reduce the annual primary energy use and emission up to 60.3 MWh and 21.1 t, respectively. While the system relies more on the heat pump in cold months, the solar energy system supplies the entire demand in summer, demonstrating the significance of PVT and heat pump integration to increase energy reliability throughout the year.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2024. Vol. 220, article id 119681
Keywords [en]
Biomass, PVT, TRNSYS, Emission mitigation, Smart building, Rule-based framework, Thermal energy storage
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-65233DOI: 10.1016/j.renene.2023.119681ISI: 001127103300001Scopus ID: 2-s2.0-85181748450OAI: oai:DiVA.org:mdh-65233DiVA, id: diva2:1823900
Available from: 2024-01-03 Created: 2024-01-03 Last updated: 2024-01-17Bibliographically approved

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Sadrizadeh, Sasan

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