Integration of Airflow and Energy Simulation using CONTAM and TRNSYS.
Integration of Airflow and Energy Simulation using
CONTAM and TRNSYS.
McDowell, T. P.; Emmerich, S. J.; Thornton, J. W.;
Walton, G. N.
ASHRAE Transactions 2003 Annual Meeting. Proceedings.
2003, Kansas City, MO, 1-14 pp, 2003.
ASHRAE Transactions, Vol. 109, No. 1,
Sponsor:Department of Energy, Washington, DC
air flow; simulation; infiltration; ventilation;
building energy use; commercial buildings; walls; roofs;
The impact of infiltration and ventilation flows on the
energy use in commercial buildings has received little
attention. One of the reasons for this lack of study is
that the commonly-used programs for estimating the
energy use of buildings do not incorporate the
inter-zonal air flow modeling techniques required to
adequately account for the effect of these factors on
energy usage. To remedy this issue and provide insigth
into the impact of these flows, the CONTAM airflow
modeling tool was incorporated into the TRNSYS energy
analysis program. This integrated approach was then used
to estimate the energy usage of 25 buildings
representing the U.S. core office building stock over a
range of infiltration and ventilation conditions. This
paper will discuss the process of modeling the buildings
in both programs, the integration of the two programs
into a cohesive simulation, and some initial results of