Tuesday, January 31, 2017: 11:15 AM-12:45 PM
Building Operation and Performance
Chair:
Joshua New, Ph.D., ONRL
Technical Committee: 1.5 Computer Applications
Sponsor: TC4.7 - Energy Calculations
Development of urban-scale building energy models is becoming of increased interest for many applications including city-wide energy supply/demand strategies, urban development planning, electrical grid stability and urban resilience. This seminar has assembled several researchers with capabilities in the field of urban-scale energy models to discuss an overview of the field as well as the data, algorithms, workflow and practical challenges addressed in their applications involving creation of useful models of individual buildings at the scale of a city, urban or metropolitan area.
1 Urban Microclimate for Building Energy Models
In anticipation of both climate change and global urbanization, we conduct research of microclimate impacts on energy systems. Researchers analyze and quantify the relationships among modeled and measured climatic conditions, urban morphology, land cover and energy use; and use these relationships to inform energy-efficient urban development and planning. Researchers apply i) neighborhood resolution modeling and simulation of urban micrometeorological processes; ii) projections informed by microclimate for future energy use under different urbanization and climate change scenarios; to produce iii) analysis and visualization tools to help planners optimally use these projections to identify best strategies for energy-efficient urban morphological development.
2 Urban-Scale Building Energy Modeling: Why Working at Scale Matters
Geographic Information Science (GIS)-based modeling has provided the opportunity to incorporate large data sets into mapping platforms with analytical capabilities. CityGML provides a widely accepted platform for integrating tools and data sets through a Service-Oriented Architecture (SOA). Examples are discussed for geographically specified utility networks (local distribution); aggregate impacts of technologies by building type; interactive effects between clustered sets of buildings, streetscapes, meteorological boundary conditions and microclimates; dynamic load sharing in community-level energy systems (eg – district heating and/or cogeneration) and electrical provisioning for low-carbon targets. Visualizations make analytical outcomes readily accessible to public stakeholders and policy decision-makers.
3 Application of Building Energy Modeling for Utility Analytics
While building energy modeling (BEM) is most widely used for building design, there are several other important applications of BEM. These include building energy code development, energy efficiency policy development, utility integrated resource planning and demand side management modeling, design, and implementation support. This seminar presents case studies of application of BEM, specifically Urban Building Energy Modeling (UBEM), for utility analytics.
4 Virtual UBEM: Visualizing, Analyzing and Reporting
With the advent of easily created urban scale reality models, creating Urban Building Energy Models (UBEM) has never been easier. This presentation demonstrates how an UBEM can be used to visualize and report on building energy consumption at urban scale. By combining building energy benchmark data with an urban scale reality mesh, users can quickly classify, visualize and report urban building energy consumption. This virtual navigation of the City of Philadelphia demonstrates how UBEM can be used to measure, analyze and report readily available benchmark data.