Sunday, January 24, 2016: 9:45 AM-10:45 AM
International Design
Chair:
Peter Simmonds, Ph.D., Building and Systems Analytics LLC
Technical Committee: 09.12 Tall Buildings
Nearly all new tall, super tall and mega tall buildings are required to comply with Energy Codes and therefore the energy performance calculations become critical. This seminar looks at specifics associated with modeling of tall buildings and compliance with various energy codes. It also provides information on the Energy Use Index (EUI) of tall buildings and what the expectancies are when designing and modeling such intricate buildings and systems.
1 Benchmarking Energy Performance of Tall Buildings (OR-16-C007)
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Mehdi Jalayerian, P.E., ESD |
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Edna Lorenz, ESD |
The first part of this presentation explores the relationship between tall buildings and energy use by examining the publically available data from municipal energy benchmarking ordinances. The analysis of this data examines correlations between building size, age, utility profiles and energy consumption. The second portion of the presentation compares city benchmarking and CBECS data sets against a pool of newly designed/constructed tall building energy model simulations. The purpose of this analysis is to compare the simulated performance against actual consumption in order to better understand trends in new tall building design as well as assess if these simulations are reasonable representations of actual tall building performance.
2 Do Taller Buildings Require More Energy? (OR-16-C008)
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Stephen Ray, Ph.D., P.E., Skidmore, Owings & Merrill LLP |
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Luke Leung, P.E., Skidmore, Owings & Merrill LLP |
Do tall buildings consume more energy per square foot than typical buildings? According to the Council on Tall Buildings and Urban Habitat, more buildings exceeding 200 m in height were constructed in 2014 than ever before. Is this increase in height accompanied by an increased EUI? Energy benchmarking data from New York and Chicago, two of America’s tall-building giants, is used to approach the question from an empirical perspective. Full building energy simulations are presented to approach the question from a modeling perspective. Governing principles of heat transfer, fluid dynamics and building physics are presented to approach the question from a theoretical perspective. Lastly, the audience is engaged to debate and settle the question for good.