TY - RPRT T1 - Transforming BIM to BEM: Generation of Building Geometry for the NASA Ames Sustainability Base BIM Y1 - 2013 A1 - James O'Donnell A1 - Tobias Maile A1 - Cody Rose A1 - Natasa Mrazovic A1 - Elmer Morrissey A1 - Cynthia Regnier A1 - Kristen Parrish A1 - Vladimir Bazjanac U2 - LBNL-6033E ER - TY - CONF T1 - An Assessment of the use of Building Energy Performance Simulation in Early Design T2 - IBPSA Building Simulation 2011 Y1 - 2011 A1 - Vladimir Bazjanac A1 - Tobias Maile A1 - Cody Rose A1 - James O'Donnell A1 - Natasa Mrazovic A1 - Elmer Morrissey A1 - Welle, Benjamin JF - IBPSA Building Simulation 2011 CY - Sydney, Australia ER - TY - CONF T1 - Data Enviroments and Processing in Sem-Automated Simulation with EnergyPlus T2 - CIB W078-W102 Y1 - 2011 A1 - Vladimir Bazjanac A1 - Tobias Maile A1 - James O'Donnell A1 - Cody Rose A1 - Natasa Mrazovic JF - CIB W078-W102 CY - Sophia Antipolis, France ER - TY - CONF T1 - SimModel: A domain data model for whole building energy simulation T2 - IBPSA Building Simulation 2011 Y1 - 2011 A1 - James O'Donnell A1 - Richard See A1 - Cody Rose A1 - Tobias Maile A1 - Vladimir Bazjanac A1 - Philip Haves AB -

Many inadequacies exist within industry-standard data models as used by present-day whole-building energy simulation software. Tools such as EnergyPlus and DOE-2 use custom schema definitions (IDD and BDL respectively) as opposed to standardized schema definitions (defined in XSD, EXPRESS, etc.). Non-standard data modes lead to a requirement for application developers to develop bespoke interfaces. Such tools have proven to be error prone in their implementation – typically resulting in information loss.

This paper presents a Simulation Domain Model (SimModel) - a new interoperable XML-based data model for the building simulation domain. SimModel provides a consistent data model across all aspects of the building simulation process, thus preventing information loss. The model accounts for new simulation tool architectures, existing and future systems, components and features. In addition, it is a multi-representation model that enables integrated geometric and MEP simulation configuration data. The SimModel objects ontology moves away from tool-specific, non-standard nomenclature by implementing an industry-validated terminology aligned with Industry Foundation Classes (IFC).

The first implementation of SimModel supports translations from IDD, Open Studio IDD, gbXML and IFC. In addition, the EnergyPlus Graphic User Interface (GUI) employs SimModel as its internal data model. Ultimately, SimModel will form the basis for a new IFC Model View Definition (MVD) that will enable data exchange from HVAC Design applications to Energy Analysis applications. Extensions to SimModel could easily support other data formats and simulations (e.g. Radiance, COMFEN, etc.).

JF - IBPSA Building Simulation 2011 U2 - LBNL-5566E ER - TY - CONF T1 - A software tool to compare measured and simulated building energy performance data T2 - IBPSA Building Simulation 2011 Y1 - 2011 A1 - Tobias Maile A1 - Vladimir Bazjanac A1 - James O'Donnell A1 - Matthew Garr AB -

Building energy performance is often inadequate when compared to design goals. To link design goals to actual operation one can compare measured with simulated energy performance data. Our previously developed comparison approach is the Energy Performance Comparison Methodology (EPCM), which enables the identification of performance problems based on a comparison of measured and simulated performance data. In context of this method, we developed a software tool that provides graphing and data processing capabilities of the two performance data sets. The software tool called SEE IT (Stanford Energy Efficiency Information Tool) eliminates the need for manual generation of data plots and data reformatting. SEE IT makes the generation of time series, scatter and carpet plots independent of the source of data (measured or simulated) and provides a valuable tool for comparing measurements with simulation results. SEE IT also allows assigning data points on a predefined building object hierarchy and supports different versions of simulated performance data. This paper briefly introduces the EPCM, describes the SEE IT tool and illustrates its use in the context of a building case study.

JF - IBPSA Building Simulation 2011 CY - Sydney, Australia U2 - LBNL-6184E ER - TY - CONF T1 - IFC BIM-based Methodology for Semi-Automated Building Energy Performance Simulation T2 - CIB W78, Proc. 25th conf Y1 - 2008 A1 - Vladimir Bazjanac JF - CIB W78, Proc. 25th conf CY - Santiago, Chile U2 - LBNL-919E ER - TY - CONF T1 - Specification of an Information Delivery Tool to Support Optimal Holistic Environmental and Energy Management in Buildings T2 - SimBuild 2008 Y1 - 2008 A1 - James O'Donnell A1 - Marcus Keane A1 - Vladimir Bazjanac JF - SimBuild 2008 CY - Berkeley, CA, USA U2 - LBNL-918E ER - TY - CONF T1 - Utilisation of Whole Building Energy Simulation Output to Provide Optimum Decision Support for Building Managers T2 - SimBuild 2008 Y1 - 2008 A1 - James O'Donnell A1 - Marcus Keane A1 - Vladimir Bazjanac JF - SimBuild 2008 CY - Berkeley, CA ER - TY - JOUR T1 - Building energy performance simulation as part of interoperable software environments JF - Building and Environment Y1 - 2004 A1 - Vladimir Bazjanac VL - 39 U1 -

Simulation Research Group

U2 - LBNL/PUB-905 ER - TY - JOUR T1 - Building Energy Performance Simulation as Part of Interoperable Software Environments JF - Building and Environment Y1 - 2004 A1 - Vladimir Bazjanac VL - 39 ER - TY - CONF T1 - BuildingPI: A Future Tool for Building Life Cycle Analysis T2 - SimBuild 2004 1st International Conference of IBPSA-USA Y1 - 2004 A1 - James O'Donnell A1 - Elmer Morrissey A1 - Marcus Keane A1 - Vladimir Bazjanac JF - SimBuild 2004 1st International Conference of IBPSA-USA CY - Boulder, Colorado, USA U2 - LBNL-56071 ER - TY - Generic T1 - IFC HVAC Interface to EnergyPlus: A Case of Expanded Interoperability for Energy Simulation T2 - SimBuild 2004, Building Sustainability and Performance Through Simulation Y1 - 2004 A1 - Vladimir Bazjanac A1 - Tobias Maile JF - SimBuild 2004, Building Sustainability and Performance Through Simulation CY - Boulder, Colorado, USA ER - TY - CONF T1 - IFC HVAC interface to EnergyPlus - A case of expanded interoperability for energy simulation T2 - SimBuild 2004 Y1 - 2004 A1 - Vladimir Bazjanac A1 - Tobias Maile JF - SimBuild 2004 CY - Boulder, CO U1 -

Simulation Research Group

U2 - LBNL/PUB-907 ER - TY - Generic T1 - Specification and Implementation of IFC Based Performance Metrics to Support Building Life Cycle Assessment of Hybrid Energy Systems T2 - SimBuild 2004, Building Sustainability and Performance Through Simulation Y1 - 2004 A1 - Elmer Morrissey A1 - James O'Donnell A1 - Marcus Keane A1 - Vladimir Bazjanac JF - SimBuild 2004, Building Sustainability and Performance Through Simulation CY - Boulder, Colorado, USA ER - TY - CONF T1 - Specification and Implementation of IFC Based Performance Metrics to Support Building Life Cycle Assessment of Hybrid Energy Systems T2 - SimBuild 2004: Building Sustainability and Performance Through Simulation Y1 - 2004 A1 - Elmer Morrissey A1 - James O'Donnell A1 - Marcus Keane A1 - Vladimir Bazjanac JF - SimBuild 2004: Building Sustainability and Performance Through Simulation CY - Boulder, CO U1 -

Simulation Research Group

U2 - LBNL/PUB-906 ER - TY - Generic T1 - Specification and Implementation of IFC-Based Performance Metrics to Support Building Life Cycle Assessment of Hybrid Energy Systems T2 - SimBuild 2004, Building Sustainability and Performance Through Simulation Y1 - 2004 A1 - Elmer Morrissey A1 - James O'Donnell A1 - Marcus Keane A1 - Vladimir Bazjanac JF - SimBuild 2004, Building Sustainability and Performance Through Simulation CY - Boulder, Colorado, USA ER - TY - CONF T1 - Specification of IFC Based Performance Metrics to Support Building Life Cycle Analysis of Hybrid Energy Systems T2 - SimBuild 2004 1st International Conference of IBPSA-USA Y1 - 2004 A1 - Elmer Morrissey A1 - James O'Donnell A1 - Marcus Keane A1 - Vladimir Bazjanac JF - SimBuild 2004 1st International Conference of IBPSA-USA CY - Boulder, Colorado, USA ER - TY - CONF T1 - Virtual Building Environments - Applying Information Modeling to Buildings T2 - European Conference on Product and Process Modeling in the Building and Construction Industry (ECPPM) 2004 Y1 - 2004 A1 - Vladimir Bazjanac AB -

A Virtual Building Environment (VBE) is a place where building industry project staffs can get help in creating Building Information Models (BIM) and in the use of virtual buildings. It consists of a group of industry software that is operated by industry experts who are also experts in the use of that software. The purpose of a VBE is to facilitate expert use of appropriate software applications in conjunction with each other to efficiently support multidisciplinary work. This paper defines BIM and virtual buildings, and describes VBE objectives, set-up and characteristics of operation. It informs about the VBE Initiative and the benefits from a couple of early VBE projects.

JF - European Conference on Product and Process Modeling in the Building and Construction Industry (ECPPM) 2004 CY - Istanbul, Turkey U1 -

Simulation Research Group

U2 - LBNL-56072 ER - TY - CONF T1 - Improving building energy performance simulation with software interoperability T2 - Building Simulation 2003 Y1 - 2003 A1 - Vladimir Bazjanac JF - Building Simulation 2003 CY - Eindhoven, Netherlands VL - 1 U1 -

Simulation Research Group

U2 - LBNL/PUB-908 ER - TY - Generic T1 - HVAC Component Data Modeling Using Industry Foundation Classes T2 - System Simulation in Buildings ’02 Y1 - 2002 A1 - Vladimir Bazjanac A1 - James Forester A1 - Philip Haves A1 - Darko Sucic A1 - Peng Xu AB -

The Industry Foundation Classes (IFC) object data model of buildings is being developed by the International Alliance for Interoperability (IAI). The aim is to support data sharing and exchange in the building and construction industry across the life-cycle of a building.

This paper describes a number of aspects of a major extension of the HVAC part of the IFC data model. First is the introduction of a more generic approach for handling HVAC components. This includes type information, which corresponds to catalog data, occurrence information, which defines item-specific attributes such as location and connectivity, and performance history information, which documents the actual performance of the component instance over time. Other IFC model enhancements include an extension of the connectivity model used to specify how components forming a system can be traversed and the introduction of time-based data streams.

This paper includes examples of models of particular types of HVAC components, such as boilers and actuators, with all attributes included in the definitions. The paper concludes by describing the on-going process of model testing, implementation and integration into the complete IFC model and how the model can be used by software developers to support interoperability between HVAC-oriented design and analysis tools.

JF - System Simulation in Buildings ’02 CY - Liège, Belgium U2 - LBNL-51365 ER -