Paper 8: Volume 4 No.2 September 2005 Edition
Building Zonal Thermal
and Airflow Modelling – A Review
1Ahmed
Chérif Megri, 1Mark Snyder and 2Marjorie Musy
1Civil
and Architectural Engineering Department, Illinois Institute of
Technology,
Chicago
,
Illinois
,
USA
2Ecole d'Architecture de Nantes, Nantes, France
Abstract
The
amount of energy used to heat and cool buildings is a significant concern
that impacts on issues from national policies to personal desires of cost
and comfort. The key to achieving optimum performance is the control of
the energy flows in the building and its environment. Such control is
secured through monitoring and altering the driving sources to maintain
the desired thermal and air quality conditions in a space while external
and internal conditions (e.g. seasonal climate, indoor heat gains,
pollutants etc.) change over time. Thermal modelling tools are essential
for the energy efficient design of buildings and their associated control
systems. They are used for a wide range of tasks including policy making,
cost analysis and comfort evaluation.
This
paper reviews the evolution of zonal airflow and thermal models,
principally for single room analysis, used to design and control heating
and cooling in the built environment. Insight is offered into the problems
of modelling building energy flows and the results of various models are
compared with experimental measurement. Finally, current state-of-the-art
modelling is reviewed with emphasis on the development of models that
designers and engineers can use to obtain a more accurate evaluation of
building energy flows.
Key words: Zonal
models for single room analysis, temperature, airflow, contaminants,
heating and ventilating systems, room air distribution.
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IJV Volume 4 No 2
Contents
Paper
1: POWBAM0
Paper
2: Inlet Conditions
Paper
3: RANS Model
Paper
4: Functional Availability
Paper
5: Probability Design
Paper
6: Ventilation Performance
Paper
7: Air Movement
Paper
8: Zonal Modelling
|
