IDEALS Home University of Illinois at Urbana-Champaign logo The Alma Mater The Main Quad

Beyond arrows: energy performance of a new, naturally ventilated, double-skin facade configuration for a high-rise office building in Chicago

Show full item record

Bookmark or cite this item: http://hdl.handle.net/2142/17026

Files in this item

File Description Format
PDF Azarbayjani_Mona.pdf (8MB) (no description provided) PDF
Title: Beyond arrows: energy performance of a new, naturally ventilated, double-skin facade configuration for a high-rise office building in Chicago
Author(s): Azarbayjani, Mona
Director of Research: Anderson, James R.
Doctoral Committee Chair(s): Anderson, James R.
Doctoral Committee Member(s): Strand, Richard; Hammann, Ralph; Newell, Ty A.
Department / Program: Architecture
Discipline: Architecture
Degree Granting Institution: University of Illinois at Urbana-Champaign
Degree: Ph.D.
Genre: Dissertation
Subject(s): Double skin facade Computational Fluid Dynamics Thermal Comfort Energy Performance
Abstract: Designers tend to rely on their intuition when designing naturally ventilated buildings without detailed analyses for the long term. It may be argued that for many standard and smaller buildings, designing for natural ventilation is straightforward: a simple process of drawing diagrams to illustrate how air flows within the building, which can achieve satisfactory comfort conditions. However, there is a significant lack of information in the current literature to demonstrate the complexity and challenges in designing large, naturally ventilated buildings. This is especially true when the new double-skin facade (DSF) configuration is used as a means of conserving energy while providing superior thermal comfort. For these types of buildings, it is important to have the tools to evaluate a design’s predicted performance to achieve successful natural ventilation concepts. It has been learned that significant energy saving is possible by exploiting natural ventilation in a DSF configuration. To determine if a DSF configuration will provide a better thermal comfort through natural ventilation, this research uses building simulation tools (EnergyPlus) and Computational Fluid Dynamics (CFD) to analyze various thermal-comfort parameters through parametric studies in the facade. This thesis presents three significant contributions for the evaluation of natural ventilation in high rise office buildings with DSF configuration: • A methodology for assessing the performance of naturally ventilated DSF buildings through an airflow modeling was developed by three-dimensional analysis using gFluent. Buoyancy, wind, and combined ventilation strategies for a commercial office building with an open floor plan layout were evaluated using the k-ε model. • Models to simulate the specific DSF typology and couple the envelope-level results to a building simulation program. • A framework for comparing and evaluating the conventional facade solution with a new configuration of naturally ventilated DSF.
Issue Date: 2010-08-31
URI: http://hdl.handle.net/2142/17026
Rights Information: Copyright 2010 Mona Azarbayjani
Date Available in IDEALS: 2010-08-31
2012-09-07
Date Deposited: August 201
 

This item appears in the following Collection(s)

Show full item record

Item Statistics

  • Total Downloads: 1260
  • Downloads this Month: 77
  • Downloads Today: 2

Browse

My Account

Information

Access Key