Thermodynamic sustainability assessment for residential building heating comparing different energy sources

Gojak, Milan; Bajc, Tamara

doi:10.1080/23744731.2021.1908043

Cited by 4 publications

(4 citation statements)

References 33 publications

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“…EU member states have provided long-term renovation strategies to facilitate this [1,2]. A transition from fossil fuels to renewable energy is an important issue to be addressed [3]. One potential measure to contribute to EPBD targets is the replacement of fossil fuel-based oil heating in buildings [4,5].…”

Section: Introductionmentioning

confidence: 99%

Renovation Results of Finnish Single-Family Renovation Subsidies: Oil Boiler Replacement with Heat Pumps

et al. 2022

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Finland has approximately 150,000 oil-heated private homes. In 2020, the Finnish government launched subsidies for private homeowner energy renovations. In this study, we examine the impact of two new energy renovation subsidies, the ELY grant and the ARA grant, from an energy efficiency point of view. Data from these subsidies reveal that a typical energy renovation case is a building from the 1970s where the oil boiler is replaced with an air-to-water heat pump. With additional data from the Finnish Energy certificate registry, a reference 1970s house is constructed and modelled in the building simulation programme, IDA ICE 4.8. Combinations of several renovation measures are simulated: air-to-water heat pump, ground-source heat pump, ventilation heat recovery and improved insulation. We found that resorting mainly to air-to-water heat pumps is not the most energy-effective solution. Ground-source heat pumps deliver a more significant reduction in delivered energy, especially with additional measures on insulation and heat recovery. Ground-source heat pumps also demand slightly less power than air-to-water heat pumps. Onsite solar PV generation helps supplement part of the power needed for heat pump solutions. Subsidy policies should emphasize deep renovation, ventilation heat recovery and onsite electricity generation.

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Section: Introductionmentioning

confidence: 99%

Renovation Results of Finnish Single-Family Renovation Subsidies: Oil Boiler Replacement with Heat Pumps

et al. 2022

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“…Since we have not a direct source on the thermal energy needs of the residential building stock in Rome, the study was based on data relating to the primary energy needs of the residential building stock in Rome divided by construction period [24]. In particular, starting from the study in [8] on the morphological characteristics and thermal transmittance of each portion of the building envelope, based on the construction period, we show in table 1, for the different periods, the specific energy requirement index of primary energy for winter heating (EPi) and that of global primary energy for winter heating and DHW production (EPgl). It should be noted that the overall heating energy requirement in 2009, just over 9600 GWh / year, almost 80% is attributable to buildings built before 1976, with an evident disproportion between the number of these buildings and the related needs; in particular, compared to the current standard of less than 40 kWh / m 2 year, values close to 130 kWh / m 2 year are recorded for less efficient buildings.…”

Section: Energy Characterization Of the Residential Building Stock In...mentioning

confidence: 99%

The heat pumps for better urban air quality✰

Carella

D’Orazio

2021

Sustainable Cities and Society

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“…The energy-saving effect can also be obtained by using heat recovery from domestic hot water [13][14][15][16], but it is easier to achieve it in mechanical ventilation systems [17]. It should be emphasized that thermal comfort is also affected by factors other than ventilation, such as the radiation temperature of the surrounding surfaces, which is easily obtained using surface heating [16,18,19], radiators [20] or wall panels with heat pipes [21] and others [22,23], as well as outdoor sources [24,25].…”

Section: Introductionmentioning

confidence: 99%

Recent Achievements in Research on Thermal Comfort and Ventilation in the Aspect of Providing People with Appropriate Conditions in Different Types of Buildings—Semi-Systematic Review

Ratajczak,

Amanowicz,

Pałaszyńska

et al. 2023

Energies

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Ventilation systems are mainly responsible for maintaining the quality of indoor air. Together with thermal comfort maintenance systems, they create appropriate conditions for living, working, learning, sleeping, etc., depending on the type of building. This explains the high popularity of research in this area. This paper presents a review of articles published in the years 2020–2023, which are indexed in the Scopus database and found with keywords “ventilation” and “thermal comfort” in conjunction with the type of building or predominant activity. Finally, 88 selected works for five types of buildings were discussed, namely offices, schools, hospitals, bedrooms, and atriums. Data on publications are summarized in the tables, taking into account the publishing year, country of origin of the authors, and keywords. In this way, the latest directions in research were presented, and research groups dealing with this subject were highlighted. For each type of building, synthetic conclusions were presented, summarizing the results of the analyzed research. This review paper would be helpful for scientists and practitioners in the field of ventilation in order to organize knowledge and in a short time be up to date with the latest research showing how ventilation affects the quality of use of buildings by their users.

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Thermodynamic sustainability assessment for residential building heating comparing different energy sources

Cited by 4 publications

References 33 publications

Renovation Results of Finnish Single-Family Renovation Subsidies: Oil Boiler Replacement with Heat Pumps

Renovation Results of Finnish Single-Family Renovation Subsidies: Oil Boiler Replacement with Heat Pumps

The heat pumps for better urban air quality✰

Recent Achievements in Research on Thermal Comfort and Ventilation in the Aspect of Providing People with Appropriate Conditions in Different Types of Buildings—Semi-Systematic Review

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