Thermal Environment Accuracy Investigation of Integrated Environmental Solutions-Virtual Environment (IES-VE) Software for Double-Story House Simulation in Malaysia

Oleiwi, Maryam Qays; Mohamed, Mohd Farid; Sulaiman, Mohd Khairul Azhar Mat; Che‐Ani, Adi Irfan; Raman, Sudharshan Naidu

doi:10.36478/jeasci.2019.3659.3665

Cited by 20 publications

(14 citation statements)

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“…Therefore, all the data conducted from the survey regarding the case study had to be assigned again in DesignBuilder and IES-ve to cope with the study objective of validating the energy analysis outcomes. • The two BIM-based model simulation outputs were very close to the actual measured data, they were all within the acceptable range of <10-20% (Maamari et al, 2006;Oleiwi et al, 2019).…”

Section: Resultssupporting

confidence: 52%

“…While the shape composed by IES-ve slightly shifted to the upper limits, with a deviation of 0.93%, this might be due to the 10% increase in the space volume compared to the original BIM model. Still, both BEM application outcomes were strongly correlated to the • IES-ve reassigned all the energy data according to its HVAC library based on the imported space type despite the fact that the type of information accompanied with this choice led to the false transition of data • All the data had to be reassigned in IES-ve measured ones and within an acceptable range of deviation since the percentage of differences was <10-20% (Maamari et al, 2006;Oleiwi et al, 2019). Both programs have been tested and validated by ANSI/ASHRAE Standard 140-2011 for building thermal envelope calculation and Fabric Load, in addition to the TM33 test for energy performance in the UK.…”

Section: Energy Performance Test Using the Bim-based Modelmentioning

confidence: 99%

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Building Information Modeling-Based Building Energy Modeling: Investigation of Interoperability and Simulation Results

Elnabawi

2020

Front. Built Environ.

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There is increasing need to apply building information modeling (BIM) to low energy buildings, this includes building energy modeling (BEM). If a building energy model can be flawlessly generated from a BIM model, the energy simulation process can be better integrated within the design, can be more competent, and timesaving. However, concerns about both the reliability and integrity of the data transfer process and the interoperability between the BIM and BEM prevent any implementation of BIM-based energy modeling on a large scale. This study addresses the accuracy and integrity of BIM-based energy modeling by investigating how well Autodesk's Revit (BIM), in conjunction with two of the most used energy modeling programs (BEM) known as DesignBuilder and Virtual Environment (IES-ve), were integrated in terms of interoperability, including location and weather files, geometry, construction and materials, thermal zones, occupancy operating schedules, and HVAC systems. All misrepresented data during the interoperability process were identified, followed by benchmarking between the BIM-based energy modeling simulation outcomes and the actual energy consumption of the case study, to assess the reliability of the process. The investigation has revealed a number of interoperability issues regarding the BIM data input and BEM data interpretation. Overall, BIM-based energy modeling proved to be a promising tool for sustainable and low energy building design, however, the BIM to BEM process is a non-standardized method of producing building energy models as it varies from one modeler to another, and the BIM to BEM process. All these might slow down any possible application for the process and might cause some uncertainties for the professionals in the field applying it.

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Section: Resultssupporting

confidence: 52%

Section: Energy Performance Test Using the Bim-based Modelmentioning

confidence: 99%

Building Information Modeling-Based Building Energy Modeling: Investigation of Interoperability and Simulation Results

Elnabawi

2020

Front. Built Environ.

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“…However, the model using the generated USWDs showed a smaller deviation from the energy bills recording a deviation of 6% compared to 15% for the energy model using the WMO weather file. Yet, both outcomes are strongly correlated to the measured consumption and within an acceptable range of deviation since the percentage of differences was <10-20% (Maamari et al,2006;Oleiwi et al, 2019).…”

Section: Iesve Outcomes Using the Generated Uswdsmentioning

confidence: 70%

A methodology for generating a synthetic local urban climate weather profile for building energy simulations in hot arid areas

Elnabawi¹,

Hamza²

2021

Building Simulation Conference Proceedings

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“…The annual consumption value of the three houses ranged between 31,403 kWh and 39,420 kWh, with an average of 34,194.33 kWh. Although DesignBuilder predicted an electrical consumption of 34,720.19 kWh/year, this still falls within the acceptable average range of <10-20% [64,65], as it recorded variations of 10.5%, 9.3% and 11.9% for houses 1-3, respectively. The simulated outcomes were plotted against the three houses' actual electricity consumption, as shown in Figure 7.…”

Section: Base Model Energy Performance and Validationmentioning

confidence: 79%

Evaluating the Impact of Energy Efficiency Building Codes for Residential Buildings in the GCC

Elnabawi¹

2021

Energies

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In arid climates, almost half of the urban peak load of energy demand is used to supply cooling and air-conditioning in the summertime. The pressure placed on energy resources to satisfy inhabitants’ indoor comfort requirements is mounting due to accelerated urbanisation rates in developing countries and has led countries such as those in the GCC (Gulf Cooperation Council) to establish sustainable building codes to enhance their environmental performance. Using the extensive parametric energy simulations provided by DesignBuilder, this study addresses the potential of applying different GCC energy efficiency measures to reduce annual energy consumption and carbon emissions in a typical residential dwelling in the Kingdom of Bahrain. To do so, first, a base case validation simulation model was generated, followed by four design scenarios addressing the minimum requirements for Bahrain’s Energy Conservation Code, Abu Dhabi’s ESTIDAMA 1, Saudi Arabia’s code, and Kuwait’s building code. Then, a feasibility study was conducted using the simple payback period (SPP) and lifecycle cost (LCC) analysis. Overall energy and carbon emission (CO2) reduction showed the potential for building sustainable codes to improve building environmental performance throughout the year. In terms of energy performance and CO2 reduction, Abu Dhabi’s ESTIDAMA 1 code recorded the best energy savings at a 24.4% and a 26.3% reduction in carbon emissions, followed by the Saudi code with a 14.6% annual energy savings and 12.3% less carbon emissions. Regarding the economic analysis, although the SPP indicates the Bahraini code offered payback in just under two years for subsidised energy and half a year for unsubsidised, the LCC analysis suggests that applying Abu Dhabi’s ESTIDAMA 1 code was the most feasible, followed by the Saudi building code. Consequently, the study suggests a comprehensive evaluation of the relationship between the sustainable building codes and their economic feasibility in order to enhance and promote the wide application in the GCC based on the code’s capabilities and their benefits for residential households and the overall economy.

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Thermal Environment Accuracy Investigation of Integrated Environmental Solutions-Virtual Environment (IES-VE) Software for Double-Story House Simulation in Malaysia

Cited by 20 publications

References 0 publications

Building Information Modeling-Based Building Energy Modeling: Investigation of Interoperability and Simulation Results

Building Information Modeling-Based Building Energy Modeling: Investigation of Interoperability and Simulation Results

A methodology for generating a synthetic local urban climate weather profile for building energy simulations in hot arid areas

Evaluating the Impact of Energy Efficiency Building Codes for Residential Buildings in the GCC

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