%0 Report %D 2013 %T Transforming BIM to BEM: Generation of Building Geometry for the NASA Ames Sustainability Base BIM %A James O'Donnell %A Tobias Maile %A Cody Rose %A Natasa Mrazovic %A Elmer Morrissey %A Cynthia Regnier %A Kristen Parrish %A Vladimir Bazjanac %8 01/2013 %2 LBNL-6033E %0 Conference Paper %B SimBuild 2012 IBPSA Conference %D 2012 %T Mapping Hvac Systems for Simulation In EnergyPlus %A Tobias Maile %A Mangesh Basarkar %A James O'Donnell %A Philip Haves %A Kevin Settlemyre %X

For building energy simulation tools to be accessible to designers, tool interfaces should present a conventional view of HVAC systems to the user, and then map this view to the internal data model used in the tool. The paper outlines a process that enables design engineers to create HVAC system representations using industry standard terminology and system, icon and typological representations and convert that unified representation into the format required by the whole building energy simulation tool EnergyPlus. This paper describes each stage of the conversion process, which involves transformations between the following representations: 1) engineer's representation, 2) component connectivity representation, 3) representation in the internal data model used in the Simergy graphical user interface for EnergyPlus, and 4) EnergyPlus representation.

The paper also describes mappings between these representations and the development of a rule-based validation and assignment framework required to implement that mapping. In addition, the paper describes the implementation of this process in Simergy.

%B SimBuild 2012 IBPSA Conference %C Madison, WI, USA %8 07/2012 %2 LBNL-5565E %0 Conference Paper %B IBPSA Building Simulation 2011 %D 2011 %T An Assessment of the use of Building Energy Performance Simulation in Early Design %A Vladimir Bazjanac %A Tobias Maile %A Cody Rose %A James O'Donnell %A Natasa Mrazovic %A Elmer Morrissey %A Welle, Benjamin %B IBPSA Building Simulation 2011 %C Sydney, Australia %8 11/2011 %G eng %0 Journal Article %J Energy and Buildings %D 2011 %T Calibrating whole building energy models: An evidence-based methodology %A Paul Raferty %A Marcus Keane %A James O'Donnell %K calibration %K Methodology %K retrofit %K simulation %K Version control %K Whole building energy model %X

This paper reviews existing case studies and methods for calibrating whole building energy models to measured data. This research describes a systematic, evidence-based methodology for the calibration of these models. Under this methodology, parameter values in the final calibrated model reference the source of information used to make changes to the initial model. Thus, the final model is based solely on evidence. Version control software stores a complete record of the calibration process, and the evidence on which the final model is based. Future users can review the changes made throughout the calibration process along with the supporting evidence. In addition to the evidence-based methodology, this paper also describes a new zoning process that represents the real building more closely than the typical core and four perimeter zone approach. Though the methodology is intended to apply to detailed calibration studies with high resolution measured data, the primary aspects of the methodology (evidence-based approach, version control, and zone-typing) are independent of the available measured data.

%B Energy and Buildings %V 43 %P 2356-2364 %8 09/2011 %G eng %N 9 %& 2356 %R 10.1016/j.enbuild.2011.05.020 %0 Conference Paper %B CIB W078-W102 %D 2011 %T Data Enviroments and Processing in Sem-Automated Simulation with EnergyPlus %A Vladimir Bazjanac %A Tobias Maile %A James O'Donnell %A Cody Rose %A Natasa Mrazovic %B CIB W078-W102 %C Sophia Antipolis, France %G eng %0 Conference Paper %B IBPSA Building Simulation 2011 %D 2011 %T Development of a user interface for the EnergyPlus whole building energy simulation program %A Richard See %A Philip Haves %A Pramod Sreekanathan %A Mangesh Basarkar %A James O'Donnell %A Kevin Settlemyre %B IBPSA Building Simulation 2011 %C Sydney, Australia %8 11/2011 %G eng %0 Journal Article %J Simulation Modelling Practice and Theory %D 2011 %T Multi-Criteria Optimisation using Past, Real Time and Predictive Performance Benchmarks %A Torrens, J. Ignacio %A Marcus Keane %A Andrea Costa %A James O'Donnell %B Simulation Modelling Practice and Theory %V 19 %P 1258-1265 %8 04/2011 %G eng %N 4 %& 1258 %0 Conference Paper %B IBPSA Building Simulation 2011 %D 2011 %T SimModel: A domain data model for whole building energy simulation %A James O'Donnell %A Richard See %A Cody Rose %A Tobias Maile %A Vladimir Bazjanac %A Philip Haves %X

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.).

%B IBPSA Building Simulation 2011 %8 10/2011 %G eng %2 LBNL-5566E %0 Conference Paper %B IBPSA Building Simulation 2011 %D 2011 %T A software tool to compare measured and simulated building energy performance data %A Tobias Maile %A Vladimir Bazjanac %A James O'Donnell %A Matthew Garr %X

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.

%B IBPSA Building Simulation 2011 %C Sydney, Australia %8 11/2011 %2 LBNL-6184E %0 Conference Paper %B IBPSA Building Simulation 2011 %D 2011 %T Systematic Development of an Operational BIM Utilising Simulation and Performance Data in Building Operation %A Edward Corry %A Marcus Keane %A James O'Donnell %A Andrea Costa %B IBPSA Building Simulation 2011 %C Sydney, Australia %8 11/2011 %G eng %0 Report %D 2010 %T BuildWise Final Report %A Marcus Keane %A Andrea Costa %A James O'Donnell %A Karsten Menzel %A Dirk, Alan %G eng %9 Technical Report %0 Conference Paper %B Clima 2010 conference %D 2010 %T Energy Monitoring Systems value, issues and recommendations based on five case studies %A Paul Raferty %A Marcus Keane %A James O'Donnell %A Andrea Costa %B Clima 2010 conference %C Antalya, Turkey %G eng %0 Conference Paper %B Building Simulation 2009 %D 2009 %T Key Factors - Methodology for Enhancement and Support of Building Energy Performance %A Andrea Costa %A Marcus Keane %A Paul Raferty %A James O'Donnell %X

This paper presents the Key Factors methodology that supports energy managers in determining the optimal building operation strategy in relation to both energy consumption and thermal comfort. The methodology is supported by the utilisation of calibrated building energy simulation models that match measured data gathered by an extensive measurement framework. The paper outlines the proposed methodology defining the underpinning concepts and illustrating the performance metrics required to capture the effect of different building operation strategies. A brief case study is discussed to demonstrate the application of the methodology.

%B Building Simulation 2009 %C Glasgow, Scotland %G eng %U http://zuse.ucc.ie/iruse/papersNew/AndreaGlasgow.pdf %0 Conference Paper %B SEEP 2009: 3rd International Conference on Sustainable Energy & Environmental Protection %D 2009 %T Multi-criteria optimisation using past, historical, real time and predictive performance benchmarks %A Torrens, J. Ignacio %A Marcus Keane %A James O'Donnell %A Andrea Costa %B SEEP 2009: 3rd International Conference on Sustainable Energy & Environmental Protection %G eng %0 Conference Paper %B MUCS 2009: 6th IEEE International Workshop on Managing Ubiquitous Communications and Services %D 2009 %T Pervasive Knowledge-Based Networking for Maintenance Inspection in Smart Buildings %A Paul Mara %A Declan O'Sullivan %A Rob Brennan %A Marcus Keane %A Kris McGlinn %A James O'Donnell %B MUCS 2009: 6th IEEE International Workshop on Managing Ubiquitous Communications and Services %C Barcelona, Spain %G eng %0 Conference Paper %B 2008 IET 4th International Conference on Intelligent Environments %D 2008 %T Design of Underlying Network Infrastructure of Smart Buildings %A Alan McGibney %A Martin Klepal %A James O'Donnell %K design %K optimisation %K Wireless BMS %X

Wireless Building Management Systems (BMS) are an attractive option when it comes to building retrofitting due to the cost constraints introduced by wired systems. A crucial part of the wireless BMS is the initial planning stage, this process can be impossible for a designer to undertake, therefore highlighting the requirement for a software design tool to aid in this process.

%B 2008 IET 4th International Conference on Intelligent Environments %C Seattle, WA %8 07/2008 %@ 978-0-86341-894-5 %G eng %U http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4629790 %0 Conference Paper %B 12th International Conference on Computing in Civil and Building Engineering %D 2008 %T Integrating the Specification, Acquisition and Processing of Building Performance Information %A Martin Keller %A James O'Donnell %A Karsten Menzel %A Marcus Keane %A Ufuk Gökçe %B 12th International Conference on Computing in Civil and Building Engineering %C Beijing, China %8 10/2008 %G eng %0 Conference Paper %B SimBuild 2008 %D 2008 %T Specification of an Information Delivery Tool to Support Optimal Holistic Environmental and Energy Management in Buildings %A James O'Donnell %A Marcus Keane %A Vladimir Bazjanac %B SimBuild 2008 %C Berkeley, CA, USA %8 07/2008 %G eng %2 LBNL-918E %0 Conference Paper %B SimBuild 2008 %D 2008 %T Utilisation of Whole Building Energy Simulation Output to Provide Optimum Decision Support for Building Managers %A James O'Donnell %A Marcus Keane %A Vladimir Bazjanac %B SimBuild 2008 %C Berkeley, CA %G eng %0 Journal Article %J Energy and Buildings %D 2007 %T Using Indicators to Profile Energy Consumption and Inform Energy Policy in a University - A Case Study in Ireland %A Brian Ó Gallachóir %A Marcus Keane %A Elmer Morrissey %A James O'Donnell %K building energy performance %K Energy in services sector %K energy policy %K University %X

The services sector has the least amount of energy end use data available, which poses significant challenges to companies within the sector attempting to benchmark their energy performance and inform energy management decisions. This paper explores through a case study analysis the use of simple performance indicators and how additional data and new metrics can greatly enhance the understanding of energy trends and in particular the assessment of building energy performance. The country chosen for the analysis is Ireland, where the services sector has experienced high energy demand growth since 1990 (4.1% annually) compared with the EU-15 (1.5% annually). Despite this growth, the available energy data is poor, in particular for the public service sub-sectors. The case study chosen is an institution within the education sub-sector, University College Cork. The paper presents some simple energy performance indicators that have been used to date to inform energy policy. The paper then introduces new approaches and tools for assessing energy performance in buildings and how these may be utilised to improve the energy policy decision making and energy management. It discusses how these approaches are been implemented for buildings with separate functions, presents some initial results and discusses future planned work.

%B Energy and Buildings %V 39 %P 913-922 %8 08/2007 %G eng %N 8 %& 913 %R 10.1016/j.enbuild.2006.11.005 %0 Conference Paper %B IBPSA Building Simulation Conference 2005 %D 2005 %T Building Effectiveness Communication Ratios for Improved Building Life Cycle Management %A Elmer Morrissey %A Marcus Keane %A James O'Donnell %A John F. McCarthy %X

Many existing building energy performance assessment frameworks, quantifying and categorising buildings post occupancy, offer limited feedback on design decisions. An environment providing decision makers with pertinent information to assess the consequences of each design decision in a timely, cost effective and practical manner is required to promote viable low-energy solutions from the outset. This paper outlines a performance-based strategy utilising building effectiveness communication ratios stored in Building Information Models (BIM). Decision makers will be capable of rating the building's energy performance throughout its natural life cycle without imposing adverse penalties on facilities located in dissimilar climatic zones subjected to stringent building codes and regulations. With this advancement in building energy assessment in place, a progressive improvement in energy efficiency for the building stock is a feasible and realistic target.

%B IBPSA Building Simulation Conference 2005 %C Montréal, Canada %8 08/2005 %G eng %0 Conference Paper %B Building Simulation 2005 IBPSA International Conference %D 2005 %T Reducing Building Operational Cost Through Environmental Effectiveness Ratios %A James O'Donnell %A Elmer Morrissey %A Marcus Keane %A Brian Ó Gallachóir %B Building Simulation 2005 IBPSA International Conference %C Montreal, Canada %8 08/2005 %G eng %0 Conference Paper %B SimBuild 2004 1st International Conference of IBPSA-USA %D 2004 %T BuildingPI: A Future Tool for Building Life Cycle Analysis %A James O'Donnell %A Elmer Morrissey %A Marcus Keane %A Vladimir Bazjanac %B SimBuild 2004 1st International Conference of IBPSA-USA %C Boulder, Colorado, USA %8 08/2004 %G eng %2 LBNL-56071 %0 Conference Proceedings %B SimBuild 2004, Building Sustainability and Performance Through Simulation %D 2004 %T Specification and Implementation of IFC Based Performance Metrics to Support Building Life Cycle Assessment of Hybrid Energy Systems %A Elmer Morrissey %A James O'Donnell %A Marcus Keane %A Vladimir Bazjanac %B SimBuild 2004, Building Sustainability and Performance Through Simulation %C Boulder, Colorado, USA %8 08/2004 %G eng %0 Conference Paper %B SimBuild 2004: Building Sustainability and Performance Through Simulation %D 2004 %T Specification and Implementation of IFC Based Performance Metrics to Support Building Life Cycle Assessment of Hybrid Energy Systems %A Elmer Morrissey %A James O'Donnell %A Marcus Keane %A Vladimir Bazjanac %B SimBuild 2004: Building Sustainability and Performance Through Simulation %C Boulder, CO %8 08/2004 %G eng %L LBNL/PUB-906 %1

Simulation Research Group

%2 LBNL/PUB-906 %0 Conference Proceedings %B SimBuild 2004, Building Sustainability and Performance Through Simulation %D 2004 %T Specification and Implementation of IFC-Based Performance Metrics to Support Building Life Cycle Assessment of Hybrid Energy Systems %A Elmer Morrissey %A James O'Donnell %A Marcus Keane %A Vladimir Bazjanac %B SimBuild 2004, Building Sustainability and Performance Through Simulation %C Boulder, Colorado, USA %8 08/2004 %G eng %0 Conference Paper %B SimBuild 2004 1st International Conference of IBPSA-USA %D 2004 %T Specification of IFC Based Performance Metrics to Support Building Life Cycle Analysis of Hybrid Energy Systems %A Elmer Morrissey %A James O'Donnell %A Marcus Keane %A Vladimir Bazjanac %B SimBuild 2004 1st International Conference of IBPSA-USA %C Boulder, Colorado, USA %8 08/2004 %G eng