scholarly journals Analysis of the differences in energy simulation results between Building Information Modeling (BIM)-based simulation method and the detailed simulation method

2011 ◽  
Author(s):  
Seongchan Kim ◽  
Jeong-Han Woo
Keyword(s):  
Building Information Modeling ◽  
Simulation Method ◽  
Energy Simulation ◽  
Information Modeling ◽  
Building Information ◽  
Detailed Simulation ◽  
Simulation Results

scholarly journals Method for Building Information Modeling Supported Project Control of Nearly Zero-Energy Building Delivery

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5519
Author(s):  
Sanjin Gumbarević ◽  
Ivana Burcar Dunović ◽  
Bojan Milovanović ◽  
Mergim Gaši
Keyword(s):  
Building Information Modeling ◽  
Control Method ◽  
Energy Simulation ◽  
Energy Modeling ◽  
Information Modeling ◽  
Project Delivery ◽  
Control Procedure ◽  
Project Control ◽  
Zero Energy ◽  
Building Information

With the increasing number of nearly zero-energy buildings (NZEB) due to increase of global awareness on climate change, the new concepts of design and control must be developed because of great NZEB dependency on detailing and multidisciplinary approach. This paper proposes a three-level gateway control method for NZEB project delivery by using digital representation of the building in building information modeling (BIM) environment. These controls (C1, C2 and C3) are introduced before three main phases of any project delivery—design phase, construction phase and handover. The proposed project control procedure uses black-box building energy modeling within the BIM environment, so the paper explores the reliability of one tool for direct energy modeling within the BIM-authoring software. The paper shows two types of validation tests with satisfactory results. This leads to conclusion that analyzed tool for energy simulation within BIM environment can be used in a way that is described in a proposed project control procedure. For further research it is proposed to explore reliability of tools for energy simulation connected to other BIM-authoring software, so this project control procedure could be independent of BIM-authoring software used in the paper.

Exploring and verifying BIM-based energy simulation for building operations

2020 ◽  
Vol 27 (8) ◽  
pp. 1679-1702
Author(s):  
Hong Xian Li ◽  
Zhiliang Ma ◽  
Hexu Liu ◽  
Jun Wang ◽  
Mohamed Al-Hussein ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Building Energy ◽  
Energy Performance ◽  
Energy Simulation ◽  
Information Modeling ◽  
Building Energy Simulation ◽  
Content Type ◽  
Simulation Tools ◽  
Building Information ◽  
Simulation Results

PurposeThe operational phase of a building's lifecycle is receiving increasing attention, as it consumes an enormous amount of energy and results in tremendous detrimental impacts on the environment. While energy simulation can be applied as a tool to evaluate the energy performance of a building in operation, the emergence of Building Information Modeling (BIM) technology is expected to facilitate the evaluation process with predefined and enriched building information. However, such an approach has been confronted by the challenge of interoperability issues among the related application software, including the BIM tools and energy simulation tools, and the results of simulation have been seldom verified due to the unavailability of corresponding experimental data. This study aims to explore the interoperability between the commonly used energy simulation and BIM tools and verifies the simulation approach by undertaking a case study.Design/methodology/approachWith Autodesk Revit and EnergyPlus selected as the commonly used BIM and energy simulation tools, respectively, a valid technical framework of transferring building information between two tools is proposed, and the interoperability issues that occur during the data transfer are studied. The proposed framework is then employed to simulate the energy consumption of a single-family house, and sensitivity analysis and analysis on such parameters as schedule are conducted for building operations to showcase its applicability.FindingsThe simulation results are compared with monitored data and the results from another simulation tool, HOT2000; the comparison reveals that EnergyPlus and HOT2000 predict the total energy consumption with a difference from the monitoring data of 8.0 and 7.1%, respectively.Practical implicationsThis research shows how to efficiently use BIM to support building energy simulation. Relevant stakeholders can learn from this research to avoid data loss during BIM model transformation.Originality/valueThis research explores the application of BIM for building energy simulation, compares the simulation results among different tools and validates simulation results using monitored data.

scholarly journals Investigating building information model to building energy model data transfer integrity and simulation results

2021 ◽  
Author(s):  
Xi (Stacy) Sun
Keyword(s):  
Data Transfer ◽  
Green Building ◽  
Building Design ◽  
Building Energy ◽  
Energy Model ◽  
Energy Simulation ◽  
Information Modeling ◽  
Test Reliability ◽  
Building Information ◽  
Simulation Results

Traditional energy modeling methods are usually time-consuming and labour-intensive, so energy simulation is rarely performed early in building design. If a Building Energy Model (BEM) can be seamlessly generated from a Building Information Modeling (BIM) model, the energy simulation process can be much more efficient and better integrated in design. The concerns about BIM to BEM data transfer integrity and the reliability of simulation results are preventing wider adoption of BIM-based energy simulation. This study aimed to address these two obstacles and increase energy modelers’ confidence in using BIM for energy analysis. Green Building Studio (GBS) was used to simulate energy use and generate eQuest and EnergyPlus input files. Two building types were modeled in Revit with various iterations and BEM input files downloaded from GBS were compared line by line to identify and classify discrepancies. Simulation results from BIM-based and traditional modeling were compared to test reliability and showed unexpectedly good agreement across methods.

Building information modeling utilization for optimizing milling quantity and hot mix asphalt pavement overlay quality

2016 ◽  
Vol 43 (10) ◽  
pp. 886-896 ◽  
Author(s):  
Abraham Bae ◽  
David Lee ◽  
ByoungYck Park
Keyword(s):  
Building Information Modeling ◽  
Hot Mix Asphalt ◽  
Concrete Slab ◽  
Asphalt Pavement ◽  
Information Modeling ◽  
Coefficients Of Variation ◽  
Building Information ◽  
Pavement Overlay ◽  
Simulation Results ◽  
The Cost

An approach to a practice paving technique using building information modeling (BIM) was developed. When planning hot mix asphalt (HMA) overlay on a concrete slab, in-advance paving simulations can help to preemptively evaluate pavement quality, such as HMA thickness, and prevent excessive HMA quantity. The BIM technique has the capabilities of ‘in-advance simulation’, ‘3-D visualization’, ‘interference identification’, and ‘quantification’. Building information modeling could be successfully implemented to optimize milling quantity and improve HMA pavement quality in an actual paving project. Based on the established BIM model, alternative paving levels were derived and paving sequences were simulated. Through 3-D visualized images, locations where HMA thickness was inadequate could be effectively identified. Quantified information for simulation results enabled optimization of milling and paving options. Milling was selectively conducted for the identified undulations. The cost was reduced by approximately 12%. Paving thickness and density had coefficients of variation (CV) of approximately 15% and 0.2%, respectively.

scholarly journals Investigating building information model to building energy model data transfer integrity and simulation results

2021 ◽  
Author(s):  
Xi (Stacy) Sun
Keyword(s):  
Data Transfer ◽  
Green Building ◽  
Building Design ◽  
Building Energy ◽  
Energy Model ◽  
Energy Simulation ◽  
Information Modeling ◽  
Test Reliability ◽  
Building Information ◽  
Simulation Results

Traditional energy modeling methods are usually time-consuming and labour-intensive, so energy simulation is rarely performed early in building design. If a Building Energy Model (BEM) can be seamlessly generated from a Building Information Modeling (BIM) model, the energy simulation process can be much more efficient and better integrated in design. The concerns about BIM to BEM data transfer integrity and the reliability of simulation results are preventing wider adoption of BIM-based energy simulation. This study aimed to address these two obstacles and increase energy modelers’ confidence in using BIM for energy analysis. Green Building Studio (GBS) was used to simulate energy use and generate eQuest and EnergyPlus input files. Two building types were modeled in Revit with various iterations and BEM input files downloaded from GBS were compared line by line to identify and classify discrepancies. Simulation results from BIM-based and traditional modeling were compared to test reliability and showed unexpectedly good agreement across methods.

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