Energy Performance Assessment of Envelopes From Organic Materials

Biks, Yuriy; Ratushnyak, G.; Ratushnyak, Olga

doi:10.21307/acee-2019-036

Cited by 4 publications

(6 citation statements)

References 6 publications

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“…To assess and compare the results of thermal performance by proposed techniques, the eight types of wall assemblies from eco-friendly materials were taken into consideration in this research after data analyzing [2], [17], [20], [23], [24]. Represented wall types are Wall type "A" (Hempcrete), Wall type "B" (Adobe), Wall type "C" (Strawbale panel), Wall type "D" (Earthbag), Wall type "E" (Cordwood), Wall type "F" (SIP plywood + ecofiber), Wall type "G" (Hempcrete + straw) and Wall type "H" (Compositional building thermo-block [22]) (see Figure 1).…”

Section: Materials and Research Methodologymentioning

confidence: 99%

“…The procedure of calculating according to the AHP methodology is commonly known and widely used [3], [4], [7], [15], [17].…”

Section: Fig 2 -Three-level Hierarchy For Assessment Of the Envelope'...mentioning

confidence: 99%

“…The MCDA process involves different criteria to be compared comprehensively. The variety of influence factors that could be taken into consideration in the DM problem model of thermal assessment are very broad and what is the "correct" one in the decision-making process is still a big issue [2], [17]. The most used factors in the specific research of energy supply, sustainable and energy-efficient problems are technical, economic, environmental, social ones [3].…”

Section: Introductionmentioning

confidence: 99%

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Thermal Performance Assessment of Wall Assemblies: Criteria Importance Theory and Ahp Approach

Biks

Ratushnyak

Lyalyuk

et al. 2022

CEJ

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The problem of the “best” choice in terms of the ecological, durable, cheap and energy-effective material of envelope construction has been considered in the paper. For the numerical assessment of the thermal performance, the MCDA techniques as Analytical Hierarchy Process (AHP) and Criteria Importance Theory (CIT) were used. There were proposed eight types of wall assemblies from a natural material, namely: Hempcrete, Adobe, Strawbale panel, Earthbag, Cordwood, SIP (plywood+ecofiber), Hempcrete+straw and Compositional building thermo-block. As a objective function for the search of the best alternative the integral index was proposed which consist of thermo-physical and economic criteria. As the thermo-physical criteria component of the index were taken the u-value of the envelope W/m2K, the dimensionless decrement factor of the envelope f and the internal areal heat capacity of the envelope k1, kJ/m2K according to ISO 13786:2017. As economic criteria of the integral index, the authors proposed the cost of the wall material Q, UAH/m2 and the mass of the wall m, kg/m2. The analysis of the conducted research has shown, that from the one hand there is no absolute “leader” in the ranking of the wall assemblies according to the proposed criteria and MCDA technique, but from the other hand by comparison of the results, there were revealed that the top three alternatives in both AHP and CIT technique are walls of “B”, “D” and “E” type with different point order, achieved in each MCDA calculation technique.

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Section: Materials and Research Methodologymentioning

confidence: 99%

“…The procedure of calculating according to the AHP methodology is commonly known and widely used [3], [4], [7], [15], [17].…”

Section: Fig 2 -Three-level Hierarchy For Assessment Of the Envelope'...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal Performance Assessment of Wall Assemblies: Criteria Importance Theory and Ahp Approach

Biks

Ratushnyak

Lyalyuk

et al. 2022

CEJ

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“…In summary, Computational Fluid Dynamics (CFD) simulation is a powerful tool for analyzing airflow, temperature distribution, and indoor air quality in built environments. By leveraging CFD techniques, designers can optimize building designs for improved occupant comfort, energy efficiency, and indoor environmental quality, ultimately creating healthier, more sustainable, and more comfortable indoor spaces [10].…”

Section: Computational Fluid Dynamics (Cfd) Simulationmentioning

confidence: 99%

Impact of Assembled Multi-Story Exterior Wall Structures on Interior Thermal Stability

2024

jmpd

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In the face of the challenges posed by global climate change, the construction industry is under immense pressure to transform, with a consensus emerging on the need for more energy-efficient construction methods. Prefabricated buildings, renowned for their green, environmentally friendly, and efficient characteristics, are gradually becoming the new darling of the construction industry. The multi-storey prefabricated faç ade, as a crucial component of prefabricated buildings, has attracted widespread attention due to its impact on indoor thermal stability. Through systematic research on multi-storey prefabricated faç ade structures, a theoretical basis can be provided for improving the design of prefabricated buildings and enhancing their indoor thermal comfort. Indoor thermal stability is closely related to energy consumption and directly affects the comfort and health of occupants. In prefabricated buildings, factors such as facade structure design, material selection, and assembly methods play a critical role in influencing the stability of the indoor thermal environment. Studying the impact of multi-storey prefabricated faç ade structures on indoor thermal stability aims to reveal the effects of different design solutions on temperature control, guiding the future design and construction of prefabricated buildings to achieve greater energy efficiency and livability.

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“…The authors propose a method of modelling the mechanism of energy-saving management in substantiating the choice of ecological and economic feasibility of materials for thermal modernization of the thermal insulation of buildings. The materials are recommended for the installation of thermal insulation shell by the Ukrainian Code of thermal insulation [5], do not fully justify the decision-making in the design and technological implementation of multilayered opaque structures from presented in Code thermal insulation materials of organic origin, for instance as [6,7,8,9,10]. This is also confirmed by studies presented in [11,12,13].…”

Section: Literary Analysis and Research Problem Statementmentioning

confidence: 99%

Energy Efficiency Assessment of Heat Insulation Building Products: Fuzzy-Probabilistic Approach

Biks

Lyalyuk

Ratushnyak

et al. 2021

Architecture, Civil Engineering, Environment

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The expediency of using heat-insulating construction products from a straw at the erecting of energy-efficient envelope constructions is considered in the paper. The hierarchical model in the form of an inference tree of the factors influencing the target function -reliability of energy efficiency of heat-insulating building products made of straw has resulted. A fuzzy matrix of knowledge is proposed which reflects the influence of thermophysical, physic-mechanical and durability parameters on the target function. The hierarchical connections between classified factors proceeded by apparatus of fuzzy logic and linguistic variables. A system of fuzzy logical equations which describes linguistic expressions of input variables according to the corresponding terms is proposed. In the research the expressions which describe the objective function -reliability of energy efficiency of heat-insulating construction products made of straw were obtained. It was made with the of membership functions following linguistic variables, by taking into account both qualitative as well as quantitative factors of influence. Represented in the paper model can be used as the design and engineering tool for the prediction of thermal performance of any multilayered wall assembly at the design stage of the project to assess complex energy efficiency parameters, which could be applied in practice during the decision-making process.

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Energy Performance Assessment of Envelopes From Organic Materials

Cited by 4 publications

References 6 publications

Thermal Performance Assessment of Wall Assemblies: Criteria Importance Theory and Ahp Approach

Thermal Performance Assessment of Wall Assemblies: Criteria Importance Theory and Ahp Approach

Impact of Assembled Multi-Story Exterior Wall Structures on Interior Thermal Stability

Energy Efficiency Assessment of Heat Insulation Building Products: Fuzzy-Probabilistic Approach

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