Dynamic thermal performance of conventional and alternative building wall envelopes

Balaji, Nallaval Chinnaswamy; Mani, Monto; Reddy, B. V. Venkatarama

doi:10.1016/j.jobe.2018.11.002

Cited by 49 publications

(19 citation statements)

References 26 publications

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“…To evaluate the thermal performance of the material, the hot box, which consists of highand low-temperature chambers divided by the envelope material is used; it accurately determines the thermal transmittance under both steady-state and dynamic conditions [9]. The opaque material used to construct walls and roofs has many different thermal properties depending on composition [10]. Thus, it is up to the architect and the engineer to select the suitable building envelope for each building.…”

Section: Literature Reviewmentioning

confidence: 99%

Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code

Chiradeja

Ngaopitakkul

2019

Sustainability

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The building envelope has a direct impact on the overall energy consumption of a building. Thus, an improvement in the building envelope using energy-efficient material can yield the desired energy performance. This study is based on the materials and compositions used in building envelopes in compliance with the building energy code of Thailand. The building under study is an educational building located in Bangkok, Thailand. Both the energy and the economic aspects of retrofitted building envelopes are discussed in this study. The energy performance was evaluated by calculating the thermal transfer value and whole building energy consumption using the building energy code (BEC) software. The simulation was done under the assumption that the building envelope in the case study building was retrofitted with different materials and compositions. The study determines the feasibility of retrofitting buildings using energy-efficient material by utilizing the discounted payback period and internal rate of return (IRR) as indicators. The results show that retrofitted building envelopes in every case can reduce the whole building energy consumption. In the best envelope configuration, energy consumption can decrease by 65%. In addition, the economic potential is also high, with an IRR value of approximately 15% and a payback period of 23 less than nine years. These finding indicate that a building envelope made with energy-efficient material can achieve good results for both energy performance and economic feasibility.

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Section: Literature Reviewmentioning

confidence: 99%

Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code

Chiradeja

Ngaopitakkul

2019

Sustainability

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“…The flowchart of the procedures used in this work comprising: initial performance measurement, simulation of intervention solutions based on the use of the BIM model are described in Figure 1. The characterization from the thermal point of view of the components of the building envelope, of which there is often no IOP Publishing doi:10.1088/1742-6596/2177/1/012029 2 information, and subsequently developing intervention solutions can be considered a reverse engineering problem as shown for numerous themes [8][9][10][11] . Energy design is among the digital procedures and the verification of dynamic energy parameters, it is fundamental to the realization of nZEB buildings.…”

Section: Introductionmentioning

confidence: 99%

Computational Model For The Estimation Of Thermo-Energetic Properties In Dynamic Regime Of Existing Building Components

Mastino

Ricciu

Baccoli

et al. 2022

J. Phys.: Conf. Ser.

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The guidelines of the European community towards a low-carbon economic society identify one of the most important scenarios in the energy efficiency of existing buildings. The discrepancy between the requirement and availability of free heat (endogenous heat, solar radiation) in certain hours of the day and operating conditions, makes the steady-state hypothesis generally inappropriate. In particular, the oscillating component of the transmitted flow, compared to the average temperature difference, is regressive in winter and dominant in summer. From this it follows the reliability of the stationary forecast models in winter and the need for dynamic forecast models in summer. The dominance of the continental climate in the EU, compared to the Mediterranean one, led to the actual delay in the development of dynamic models, especially at a regulatory level. In this paper, a methodology for assessing the dynamic properties of a building component is evaluated. The methodology, based on heat transmission equations implements a numerical model for existing building components whose input data can be obtained from experimental measurements. The developed model has been used to estimate the energetic and thermal behaviour of a building envelope subjected to energy efficiency measures.

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“…The study suggested that constructions built with heavy weight materials such as concrete had a higher energetic impact over their full life-cycle than comparable structures built of wood, which has been often used as a structural material in lightweight buildings. Balaji et al 17 investigated the thermal performance parameters of the building envelope by adopting admittance method and finite difference methods. The effects of various wall configurations on time lag and decrement factor, interior surface instantaneous thermal load and influence of exterior surface heat transfer coefficient on the time lag and the decrement factors were studied.…”

Section: Introductionmentioning

confidence: 99%

Analysis of dynamic thermal performance of the walls in residential buildings in Serbia

Kalinović

Djoković

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this paper, analysis of dynamic thermal performance of multilayer insulation wall in residential buildings in Serbia is performed. Considering that the final goal is to build a residential structure with the highest level of efficiency, that is, with the lowest energy consumption for heating and cooling, it is necessary to determine good thermal characteristics of a multilayer wall. The first type of walls, which were analyzed had the same structure with different thicknesses of individual layers. The second type of analyzed walls had the same structure, but the thermo-insulating layers occupied different positions. The third type of walls had different structures, but the same total thickness. Based on the results presented in the paper, it can be concluded that in walls with similar structures, the same total thickness and different thicknesses of individual layers, there are differences in the external temperature variation shift. The position of the thermal insulation layer for the same wall structure does not significantly affect the change in temperature oscillation caused by the change in the outside temperature. Changing the wall structure, however, has significant influence on the thermal capacity. This analysis offers the possibility to choose the optimal solution for the wall structure with the highest energy efficiency.

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Dynamic thermal performance of conventional and alternative building wall envelopes

Cited by 49 publications

References 26 publications

Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code

Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code

Computational Model For The Estimation Of Thermo-Energetic Properties In Dynamic Regime Of Existing Building Components

Analysis of dynamic thermal performance of the walls in residential buildings in Serbia

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