Experimental house EB2020 – Research and experimental measurements of an energy roof

Kalús, Daniel; Janík, Peter; Kubica, Matej

doi:10.1016/j.enbuild.2021.111172

Cited by 9 publications

(7 citation statements)

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“…We have described the description and evaluation of the experimental measurements of the energy roof in paper [1] and of the ground storage tank in paper [2].…”

Section: Breakdown Of the Measurement Methodologymentioning

confidence: 99%

“…The implementation of the experimental house EB2020 was described in detail in papers [1,2], which focused on the description and evaluation of the experimental measurements of the energy roof and the ground heat storage. This section presents basic photo documentation of the construction and implementation of heat sources and energy systems.…”

Section: Project and Implementation Of The Experimental Family House ...mentioning

confidence: 99%

“…), heating, cooling, etc.). Our contribution to ESR and GHS research has already been presented in several papers but most extensively in the papers listed in the literature, such as [1,2].…”

Section: Introductionmentioning

confidence: 99%

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Contribution to Active Thermal Protection Research—Part 2 Verification by Experimental Measurement

et al. 2023

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This article is closely related to the oldest article titled Contribution to Active Thermal Protection Research—Part 1 Analysis of Energy Functions by Parametric Study. It is a continuation of research that focuses on verifying the energy potential and functions of so-called active thermal protection (ATP). As mentioned in the first part, the amount of thermal energy consumed for heating buildings is one of the main parameters that determine their future design, especially the technical equipment. The issue of reducing the consumption of this energy is implemented in various ways, such as passive thermal protection, i.e., by increasing the thermal insulation parameters of the individual materials of the building envelope or by optimizing the operation of the technical equipment of the buildings. On the other hand, there are also methods of active thermal protection that aim to reduce heat leakage through nontransparent parts of the building envelope. This methodology is based on the validation of the results of a parametric study of the dynamic thermal resistance (DTR) and the heat fluxes to the interior and exterior from the ATP for the investigated envelope of the experimental house EB2020 made of aerated concrete blocks, presented in the article “Contribution to the research on active thermal protection—Part 1, Analysis of energy functions by the parametric study”, by long-term experimental measurements. The novelty of the research lies in the involvement of variant-peak heat/cooling sources in combination with RES and in creating a new, original way of operating energy systems with the possibility of changing and combining the operating modes of the ATP. We have verified the operation of the experimental house in the energy functions of thermal barrier, heating/cooling with RES, and without RES and ATP. The energy saving when using RES and ATP is approximately 37%. Based on the synthesis and induction of analogous forms of the results of previous research into recommendations for the development of building envelopes with energy-active elements, we present further possible outcomes in the field of ATP, as well as already realized and upcoming prototypes of thermal insulation panels.

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“…We have described the description and evaluation of the experimental measurements of the energy roof in paper [1] and of the ground storage tank in paper [2].…”

Section: Breakdown Of the Measurement Methodologymentioning

confidence: 99%

Section: Project and Implementation Of The Experimental Family House ...mentioning

confidence: 99%

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Contribution to Active Thermal Protection Research—Part 2 Verification by Experimental Measurement

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“…According to the results of the study [1], the ATP function for this building envelope solution has a high potential for application as wall heating/cooling in addition to the thermal barrier and heat/cooling storage functions. We have described the experimental measurements and evaluation of the energy roo in [35] and of the ground-source heat storage in [33]. In this paper, we describe the analysi of a parametric study of the application of ATP as a thermal barrier in this type of buildin envelope.…”

Section: Fragment 3-a Wall Made Of Aerated Concrete Blocks With Therm...mentioning

confidence: 99%

Analysis of the Dynamic Thermal Barrier in Building Envelopes

et al. 2023

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This article focuses on the investigation of the dynamic thermal barrier (TB) and dynamic thermal resistance (DTR) of the building envelope. The aim is to analyze the DTR as a function of the temperature change of the heat transfer medium supplied to the dynamic TB layer and to determine the energy potential of several materially different fragments of the building envelope. The functions of TB and DTR depend on the uniform and continuous maintenance of temperature in a given layer of the building structure. The methodology is based on the analysis and synthesis of thermal resistance calculation, wall heating, and computer simulation. The research results show that the relatively low mean temperature of the heat transfer medium of approximately θm = 17 °C delivered to the TB layer represents RDTR = up to 30 ((m2·K)/W) for an equivalent dynamic thermal insulation thickness of 1000 mm for a required standard resistance of RSTANDARD = 6.50 ((m2·K)/W) of the individual fragments analyzed with static thermal insulation of 65 to 210 mm. The energy potential of a thermal barrier (TB) represents an increase of approximately 500% in the thermal resistance and up to 1500% in the thickness of the dynamic thermal insulation. Further research on the dynamic thermal barrier and verification of the results of the parametric study will continue with comprehensive computer simulations and experimental measurements on the test cell.

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“…Kalús, Janík and Kubica [24] conducted research on combined building-energy systems such as an energy roof, ground source heat storage and active thermal protection on the experimental house EB2020. They describe the theoretical procedure for calculating the efficiency of the energy roof, comparison with a classical solar collector, experimental measurements of the energy roof during one season and evaluation of the measured data.…”

Section: Description Of the Known State Of The Art And Contribution T...mentioning

confidence: 99%

Energy, Economic and Environmental Assessment of Thermal Barrier Application in Building Envelope Structures

2021

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Thermal engineering requirements for building structures are becoming more and more strict. Thermal barriers (TBs) are energy-active elements integrated into the building structure in which a heat transfer medium (water or air) flows. A survey of the scientific literature on the subject points to the fact that this is a very topical and promising area of research and, so far, most studies on TBs are based on calculations, computer simulations and experimental measurements. Few studies have focused on the economic and environmental aspects of TB use. Following the research results presented by authors from all over the world, as well as our contributions in this scientific field that are described in a European patent, three utility models and scientific articles, in this study we have focused on the evaluation of the TB in terms of energy performance, economic efficiency and environmental friendliness by comparing the use of a classical envelope wall with the required thickness of thermal insulation meeting the normative requirements for thermal resistance R ((m2K)/W) and a perimeter wall with an integrated TB significantly eliminating the thermal insulation thickness. We evaluate the use of the thermal barrier using: economic indicator one, where we compare the cost of heat delivered to the TB in a structure with significantly eliminated thermal insulation and the saved cost of thermal insulation at the standard thickness; economic indicator two, where we compare the cost of heat delivered to the TB in a structure with significantly eliminated thermal insulation with the potential gain from the sale of the useful area of the building gained compared to the area at the normative thickness of thermal insulation; and economic indicator three, where we compare the cost of heat delivered to the TB in a structure with significantly eliminated thermal insulation with the cost of grey energy at the normative thickness of thermal insulation. Based on a parametric study based on theoretical assumptions, it can be concluded that the thermal barrier shows a very promising and efficient solution in terms of the evaluation of economic indicators one to three, which are even more significant if we use heat for the TB from renewable energy sources (RES) or waste heat.

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Experimental house EB2020 – Research and experimental measurements of an energy roof

Cited by 9 publications

References 1 publication

Contribution to Active Thermal Protection Research—Part 2 Verification by Experimental Measurement

Contribution to Active Thermal Protection Research—Part 2 Verification by Experimental Measurement

Analysis of the Dynamic Thermal Barrier in Building Envelopes

Energy, Economic and Environmental Assessment of Thermal Barrier Application in Building Envelope Structures

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