Now showing 1 - 5 of 5
  • Publication
    Specification and Implementation of IFC Based Performance Metrics to Support Building Life Cycle Assessment of Hybrid Energy Systems
    Minimising building life cycle energy consumption is becoming of paramount importance. Performance metrics tracking offers a clear and concise manner of relating design intent in a quantitative form. A methodology is discussed for storage and utilisation of these performance metrics through an Industry Foundation Classes (IFC) instantiated Building Information Model (BIM). The paper focuses on storage of three sets of performance data from three distinct sources. An example of a performance metrics programming hierarchy is displayed for a heat pump and a solar array. Utilising the sets of performance data, two discrete performance effectiveness ratios may be computed, thus offering an accurate method of quantitatively assessing building performance.
  • Publication
    Specification of an Information Delivery Tool to Support Optimal Holistic Environmental and Energy Management in Buildings
    Building performance assessment for the operational phase of a building’s life cycle is heuristic, typicallywork- ing from available historical metered data and focusing on bulk energy assessment. Building Management Systems are used in the operational phase of the building to con- trol the building’s internal environment according to the design criteria outlined during the design phase. Recent developments in mechanisms that communicate building performance such as standardised building per- formance objectives and metrics enable the use of the out- put from whole building energy simulation tools by non- technical personnel and all project stakeholders. This paper proposes to specify and demonstrate the utilisation of an Information Delivery Tool that supports optimum holistic environmental and energy analysis aimed at an established profile of building managers utilising standardised performance objectives and metrics
  • Publication
    BuildingPI: A Future Tool for Building Life Cycle Analysis
    Traditionally building simulation tools are used at the design phase of the building project. These models are used to optimise various design alternatives, reduce energy consumption and cost. Building performance assessment for the operational phase of a buildings life cycle is sporadic, typically working from historical metered data and focusing on bulk energy assessment. Building Management Systems (BMS) do not explicitly incorporate feedback to the design phase or account for any changes, which have been made to building layout or fabric during construction. This paper discuses a proposal to develop an Industry Foundation Classes (IFC) compliant data visualisation tool Building Performance Indicator (BuildingPI) for performance metric and performance effectiveness ratio evaluation.
  • Publication
    Scenario modelling: A holistic environmental and energy management method for building operation optimisation
    Building managers have specific duties and certain outputs that are required of them. Without the necessary data, information, tools, and time, they are unable to adequately meet their organisational goals. Scenario modelling enables explicit and unambiguous coupling of building functions with other pivotal aspects of building operation in a method that specifically considers the education and technical expertise of building managers. This new method captures, transforms, and communicates the complex interdependencies of environmental and energy management in buildings through an easily navigable, holistic, and reproducible checking mechanism that compares actual performance with predicted performance and completes the “plan-do-check-act” cycle for building managers. Most important, the structured nature of this method caters to the diverse profile of building managers, making it applicable for widespread deployment. This paper demonstrates the benefit of using the new method by examining its application to a performance analysis of two existing buildings.
    Scopus© Citations 20  1137
  • Publication
    A performance assessment ontology for the environmental and energy management of buildings
    Narrowing the performance deficit between design intent and the real-time environmental and energy performance of buildings is a complex and involved task, impacting on all building stakeholders. Buildings are designed, built and operated with increasingly complex technologies. Throughout their life-cycle, they produce vast quantities of data. However, many commercial buildings do not perform as originally intended. This paper presents a semantic web based approach to the performance gap problem, describing how heterogeneous building data sources can be transformed into semantically enriched information. A performance assessment ontology and performance framework (software tool) are introduced, which use this heterogeneous data as a service for a structured performance analysis. The demonstrator illustrates how heterogeneous data can be published semantically and then interpreted using a life-cycle performance framework approach.
      1800Scopus© Citations 87