Effects of different window configurations on energy consumption in building: Optimization and economic analysis

Heydari, Ali; Sadati, Seyed Esmaeil; Gharib, Mohammad Reza

doi:10.1016/j.jobe.2020.102099

Cited by 30 publications

(12 citation statements)

References 21 publications

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“…They are less intrusive and easy to install, enabling the user to mitigate the energy usage without compromising the benefits of natural light into the office room. When LEFs are installed, it should improve the insulating performance of windows that leads to an enhanced thermal comfort, especially in hot climates [26,27].…”

Section: Lefmentioning

confidence: 99%

Energy Performance Evaluation of Historical Building

2022

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Retrofitting measures in old buildings aimed at reducing energy usage have become important procedures meant to counteract the effects of climate change and greenhouse gas emissions. The aim of this study is to evaluate energy usage, thermal comfort, and CO2 emissions of an old building by changing parameters such as building orientation, shading systems, location, low energy film application, and alternative energy supply in the form of a geothermal heat pump. When evaluating the buildings in terms of geographical location with or without applying the low energy film, the results show that the city of Gävle in Sweden requires the most heating energy, 150.3 kWh/m2∙year (B0) compared to Jakarta (L0), which requires 23.8 kWh/m2∙year. When examining the thermal comfort, cases B4 and L4 demonstrate the best results in their respective categories (B0–B4 are cases without low energy film and L0–L4 are cases with applied low energy film). The results for the CO2 emissions levels for B0–B4 and L0–L4 indicate that B4 has the highest value, 400 kg CO2 eq/year higher than B0, and L1 has the lowest value, 731 kg CO2 eq/year lower than B0. The economic feasibility study illustrates that the installation of a geothermal heat pump with at least a coefficient of performance of 4.0 leads to a shorter payback period than solely applying LEF.

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Section: Lefmentioning

confidence: 99%

Energy Performance Evaluation of Historical Building

2022

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“…All over the world, an important role is given to energy saving in buildings, which is aimed at reducing the consumption of the country's fuel and energy resources [1][2][3][4][5][6][7]. The complex value of the characteristics of the energy saving level of a building is the maximum value of the heat transfer coefficient of individual building envelopes in European countries or the required resistance to heat transfer of external fences in Russian regulatory documents.…”

Section: Introductionmentioning

confidence: 99%

The required level of thermal protection of enclosing structures of administrative buildings in the transport infrastructure in Russia and European countries

Frolova

Petrov²,

Frolov³

et al. 2023

E3S Web Conf.

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Comparison of various standard values and calculation methods adopted in Russia and European countries has always aroused quite a lot of interest, and many works are devoted to this topic. However, the last comparisons were carried out quite a long time ago, and the purpose of this study is to compare the required level of thermal protection of the building envelopes of administrative buildings in the transport infrastructure in Russia and European countries according to the current regulatory documents to determine the ratio of these values to each other. The normalized values of the level of thermal protection of external enclosing structures are related to the degree-days of the heating period. Moreover, the definition of this value in Russia and the EU countries differ from each other. And it is possible to compare the level of thermal protection of enclosing structures in different countries only according to the same characteristic, that is, with the same (or very close) value of the degree-day of the heating period. Also, the level of required resistance to heat transfer of external enclosing structures in Russia is set taking into account heat-conducting inclusions in the enclosing structure, and in European countries without taking into account. That is, it is impossible to compare these two quantities in the original form - you need to take into account the design of the outer shell of the building.

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“…At first, the envelope of the building and its effect on energy consumption and work done in this field are studied. Heydari et al 1 investigated the effects of window configurations (gap between the panes, glass thickness, filled gas, and the number of panes) on energy consumption in a residential building in Semnan, Iran. They also obtained the best window configuration for two other climates in Iran.…”

Section: Introductionmentioning

confidence: 99%

The effect of materials used in office building envelope on the capacity and performance of a solar‐assisted cooling heating and power system

Heydari

Sadati

2023

Env Prog and Sustain Energy

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The calculation of heating and cooling loads to office buildings is different due to the presence of many people and also their activity at certain times of the day. In this research, a model office building is first simulated in Semnan, Iran using Design Builder software. After applying the necessary assumptions about the presence of people and building activation time, the heating and cooling loads of the base sample building are calculated with the specified envelope configuration. In the next step, some changes are applied to the thermal insulation of the envelope and the roof as well as the configuration of the windows. Then, for obtained heating and cooling loads for each case, hybrid solar‐assisted cooling heating and power (CCHP) system are designed. Thus, for different envelope configurations, the best case for the capacity of the power generation unit (PGU), the ratio of PGU‐generated energy to solar energy, and fuel consumption saving of the solar‐assisted CCHP system is determined. Results show that the use of appropriate window configuration and the suitable insulation of the walls and roof can save 24.8% of PGU capacity and 53.48% of fuel consumption in the solar‐assisted CCHP system.

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Effects of different window configurations on energy consumption in building: Optimization and economic analysis

Cited by 30 publications

References 21 publications

Energy Performance Evaluation of Historical Building

Energy Performance Evaluation of Historical Building

The required level of thermal protection of enclosing structures of administrative buildings in the transport infrastructure in Russia and European countries

The effect of materials used in office building envelope on the capacity and performance of a solar‐assisted cooling heating and power system

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