Experimental Evaluation of the Heat Balance of an Interactive Glass Wall in A Heating Season

Szyszka, Jerzy

doi:10.3390/en13030632

Cited by 12 publications

(5 citation statements)

References 27 publications

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“…The presented research aims at the development of a suitable spectrally selective surface technology that can be used in solar thermal applications in building envelopes (e.g., solar walls for passive heating, as in [36,37]). The paper describes the reasoning behind the development of the low-cost polymer-based foil solar absorber, analysis of its spectral optical parameters, and environmental assessment of its production.…”

Section: Discussionmentioning

confidence: 99%

“…Low emissivity barriers [34] and reflective foils [35] have been widely investigated in buildings when opaque building components are designed. However, although existing works (such as [36,37]) suggest that a solar selective absorber is a viable option for the reduction of heating energy consumption, a literature review did not identify an existing solar absorber foil that could be potentially integrated for innovative energy-efficient building-envelope applications.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of a Selective Polymer-Based Solar Absorber for Building Integration

2020

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Recent technological advances in solar absorber production may have created opportunities for new applications of these materials in buildings. A low-emissivity enhanced polymer-based absorber foil was developed and prototyped to demonstrate feasibility of the concept. This paper describes key development factors leading to a particular composition of the prototype and its testing, specifically spectroscopy measurements (both for shortwave and longwave regions) and environmental impact assessment of its production. It also provides comparison of the tested parameters with commercially available absorbers. The results show that the developed absorber has relatively good thermal emissivity (approx. 0.3), high solar absorption (0.95) and selectivity (3.2), and significantly lower (up to 98%) environmental impacts compared to the commercially available metal-based solar selective absorbers.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of a Selective Polymer-Based Solar Absorber for Building Integration

2020

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“…An interactive glass wall, the structure of which was analogous to the Trombe wall, has been tested under temperate climate conditions. On the basis of the results obtained, it was shown that, as a result of heat flow after sunset, there was a reduction in fluctuations in internal air temperature in the test chamber [19]. The concrete layer in the Trombe wall can also be replaced with PCM-modified ceramic elements.…”

Section: Application Of Pcm In Thermal Storage Wallmentioning

confidence: 99%

The Effects of Using a Trombe Wall Modified with a Phase Change Material, from the Perspective of a Building’s Life Cycle

Żelazna,

Lichołai,

Krasoń

et al. 2023

Energies

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The increasing costs related to the use of primary energy carriers, and greater social awareness related to the need for energy saving, necessitate the use of renewable energy sources, including solar radiation. The Trombe wall (thermal storage wall—TSW) is an indirect passive solar energy system solution, aimed at obtaining, storing, and transferring thermal energy into buildings. However, there is no comprehensive information on the impact of the use of such solutions on environmental performance in the life cycle of buildings, especially those located in temperate climates. The aim of this paper is therefore to determine the environmental impact of the construction of barriers using phase change materials (PCM) from the perspective of the life cycle of a model building conforming to the current Polish energy standard (EP < 70 kWh/(m2∙yr)). The subject of the research is the structure of a TSW using phase change materials and a reference wall with a maximum overall heat transfer coefficient of 0.2 W/m2K. A comprehensive computational model of a residential building located in Rzeszów, Poland, was created, taking into account the thermal parameters of the analyzed structure of the wall and its operation under real, specific climatic conditions, as well as the environmental characteristics. High-quality input data (based on real, long-term measurements) were used to conduct a Life Cycle Assessment of the analyzed variants. As a result, the energetic and environmental efficiency of the analyzed thermal storage wall, from the perspective of the whole building’s life cycle, were assessed. According to the analyzed data, a TSW modified with paraffin enables the reduction of the energy requirements for heating by 11.3%, and the payback period of the environmental load does not exceed 1 (GWP) and 5 (IMPACT2002+) years, which were lower than the monitored period of operation.

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“…The first was simulated in TRNSYS with a single air node (ground floor), whereas for the second one two air nodes (ground and first floor) have been used and connected to the same generation system [19]. Both the buildings have the same Window to Wall Ratio (WWR) on each exposure, equal to 13%, 10% and 4% for North/South, East and West [20]. Internal gains (332 W per floor, whose 50% is radiative) [21,22] and natural ventilation (0.5 air-change per hour) were set in accordance to Italian standards.…”

Section: Buildings Descriptionmentioning

confidence: 99%

The choice of appropriate generator systems to enhance the renewable energy share in buildings. A comparison between PV-assisted heat pumps and biomass boilers

et al. 2021

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Low-energy buildings are generally equipped with generation systems driven by renewable sources. Regarding heating and DHW production, two choices appear appropriate: PV assisted heat pumps and biomass boilers. In this paper, by means of TRNSYS dynamic simulations, the non-renewable primary energy was determined for two buildings located in different climatic contexts by varying the PV size to consider the actual self-consumed electricity of commercial devices. Results showed that in cold climates biomass boilers are more suggested, especially in unfavourable climatic zones, whereas the COP of air-water heat pumps is strongly penalized by the outdoor temperatures and in many cases the self-consumed PV electricity does not limit the grid intervention adequately. However, in building with limited thermal energy demands and in favorable climates, suitable PV sizes make heat pumps more performant than biomass boilers. The same calculations were conducted with the quasi-steady approach, in accordance with the Italian building energy certification procedure, observing a favorable scenario in a heating plant equipped with a PV assisted heat pump because it assumes the renewable electricity entirely absorbed, while the accounting of the actual self-consumed share produces a greater demand of non-renewable energy.

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Experimental Evaluation of the Heat Balance of an Interactive Glass Wall in A Heating Season

Cited by 12 publications

References 27 publications

Preparation and Characterization of a Selective Polymer-Based Solar Absorber for Building Integration

Preparation and Characterization of a Selective Polymer-Based Solar Absorber for Building Integration

The Effects of Using a Trombe Wall Modified with a Phase Change Material, from the Perspective of a Building’s Life Cycle

The choice of appropriate generator systems to enhance the renewable energy share in buildings. A comparison between PV-assisted heat pumps and biomass boilers

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