Influence of the building shape on the energy performance of timber-glass buildings in different climatic conditions

Premrov, Miroslav; Leskovar, Vesna Žegarac; Mihalič, Klara

doi:10.1016/j.energy.2015.05.027

Cited by 57 publications

(30 citation statements)

References 22 publications

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“…With the heated volume and the ground floor area remaining constant, the total annual energy demand for heating and cooling increases with the shape factor due to the enlarged size of the external envelope and the glass areas [23]. In addition, the shape factors of rectangle and square are lower than other building shape [23]. For this purpose, a typical representative rural building has been established, which is a three-storey building, as shown in Figure 1.…”

Section: Simulation Modelmentioning

confidence: 99%

Research on Energy-Saving Optimization for the Performance Parameters of Rural-Building Shape and Envelope by TRNSYS-GenOpt in Hot Summer and Cold Winter Zone of China

Tang

et al. 2017

Sustainability

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Abstract:The aim of this paper is to optimize the building shape parameters and envelope parameters influencing the rural building energy consumption in cold winter and hot summer climate. Several typical models are established and optimized by integrated TRNSYS and GenOpt. Single-objective optimization has provided guidance to the multi-dimensional optimization. Building shape and envelope parameters are considered simultaneously by multi-dimensional optimization. Results of the optimization showed significant reduction in terms of EC (energy consumption). When O (building orientation) was SW (south by west) 10 • , LWR (length-width ratio) was 1.1, WWRS (window-wall ratio in south) with the range of 0.6-0.8, ITE (insulation thickness of exterior wall) and ITR (insulation thickness of roof) was 0.05 m and 0.08 m respectively, the building had minimal energy consumption. The results also indicated that the optimal EWT (exterior window type) was plastic single-frame Low-E insulating glazing filled with inert gas, and the optimal shape of building is Re (rectangle). An effective method was provided to optimize the design of the rural building for the purpose of reducing building energy consumption in cold winter and hot summer climate.

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Section: Simulation Modelmentioning

confidence: 99%

Research on Energy-Saving Optimization for the Performance Parameters of Rural-Building Shape and Envelope by TRNSYS-GenOpt in Hot Summer and Cold Winter Zone of China

Tang

et al. 2017

Sustainability

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show abstract

“…Premrov et al . assessed the building shape impact on heating and cooling consumption of building showing that the energy consumption of the building depends heavily on its shape in cold climates . Furthermore, in another study, Premrov et al .…”

Section: Introductionmentioning

confidence: 99%

Impact of building design parameters precision on heating and cooling load calculations

Abasnezhad

Soltani

Markarian

et al. 2018

Env Prog and Sustain Energy

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Energy efficiency of buildings is of paramount importance due to limited fossil resources, environmental issues, and increasing energy demand. Thus, in recent years building energy analysis using various programs has experienced a rapid growth. However, these programs are expensive and time consuming. In this study, mechanical engineering building of Tabriz University located in northwest of Iran is analyzed to attain a simplified building model that can reduce the computational time and effort. Therefore, 10 models are considered with distinctive design accuracies. EnergyPlus software has been employed to perform energy analysis of the building. The findings show that building materials, internal walls and zoning of the building are determining factors in thermal loads of the building. However, shadings, number of occupants, and electrical appliances have negligible impact. Thus, it can be concluded that the model in which a detailed envelope design is considered and interior walls, shades, electrical appliances, and duration of occupancy are omitted, has the optimum performance in terms of time saving and accuracy of load calculation. Moreover, to gain more reliable results, it is recommended to consider zones in model No.5. The difference between natural gas and electricity consumption of the first and last models is 20,302 m3 (2200$) and 1157 kWh (90$) that indicates the significance of proper HAVC sizing. It is worth mentioning that all monetary units are presented in 2018 U.S. dollar. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 741–749, 2019

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“…The value of r in Equation (7) can be infl uenced also by the building geometry. In the early design stage, when determining the building geometry which can be either compact (square, rectangular) or dynamic (L, U, T-shape), it is important to consider direct solar penetration through the glazing in the south façade which signifi cantly depends also on the so-called self-shading, parametrically analysed in [17]. In the presented research the study from [20] was extended and upgraded in [17] where it was concluded that the value of AGAW = 35% is the optimal size of glazing placed in the south façade of the passive type of timber-glass buildings in basically every climate condition considered (Ljubljana, Munich and Helsinki) and any shape of the building.…”

Section: Miroslav Premrov -Infl Uence Of the Building Geometry On Enementioning

confidence: 99%

“…The study was furthermore extended for rectangular building shapes in warm climate conditions (Athens, Madrid) which were not analysed in [17]. The fi ndings from the presented study can result in optimal design solutions for single and two storey timber-glass houses with a constant fl oor area and a varying building aspect ratio in six different European locations with cold, moderate and warm climates.…”

mentioning

confidence: 99%

“…The submitted paper is a systematic upgrade of the numerical study [17] where a parametric analysis is carried out for eight different building shapes, i. for each storey, in addition to the analysis of single-storey houses with A = 162 m 2 in order to compare the energy behaviour of two-storey residential buildings with single-storey ones having the same total fl oor area. The study was furthermore extended for rectangular building shapes in warm climate conditions (Athens, Madrid) which were not analysed in [17].…”

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Influence of the building geometry on energy efficiency of timber-glass buildings for different climatic regions

Premrov¹,

Žigart²,

Zegarac-Leskovar³

2017

Istrazivanja I Projektovanja Za Privredu

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Influence of the building shape on the energy performance of timber-glass buildings in different climatic conditions

Cited by 57 publications

References 22 publications

Research on Energy-Saving Optimization for the Performance Parameters of Rural-Building Shape and Envelope by TRNSYS-GenOpt in Hot Summer and Cold Winter Zone of China

Research on Energy-Saving Optimization for the Performance Parameters of Rural-Building Shape and Envelope by TRNSYS-GenOpt in Hot Summer and Cold Winter Zone of China

Impact of building design parameters precision on heating and cooling load calculations

Influence of the building geometry on energy efficiency of timber-glass buildings for different climatic regions

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