The coupled airflow and thermal analysis problem in building airflow system simulation

Conference · Sun Jan 01 04:00:00 EST 1989 · ASHRAE Transactions (American Society of Heating, Refrigerating and Air-Conditioning Engineers); (USA)

OSTI ID:5864353

Axley, J ^[1]; Grot, R ^[2]

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1. Dept. of Architecture, Massachusetts Inst. of Technology, Cambridge, MA (US)
2. Building Environment Div., National Inst. of Standards and Technology, Gaithersburg, MD (US)

The Indoor Air Quality and Ventilation Group at the National Institute for Standards and Technology (NIST, formerly the National Bureau of Standards) has developed a method of building airflow analysis, based upon element assembly techniques, that has been successfully applied to the determination of the macroscopic characteristics of infiltration, exfiltration, and interzonal airflows in complex building airflow systems driven by wind pressures, buoyant forces, and the building HVAC system. This analytical method was formulated to be compatible with a discrete thermal analysis method, also based on element assembly techniques and developed earlier, which may be applied to problems of building thermal analysis. This paper reviews the theoretical bases of these two related methods and presents a theoretical framework for integrating the flow with the thermal analysis methods to solve the coupled airflow and thermal analysis problem in building airflow system simulation. Formulation of the coupled airflow-thermal analysis problem is presented and numerical methods for the solution of this problem are outlined.

• OSTI ID: 5864353
• Report Number(s): CONF-890609--
• Conference Information: Journal Name: ASHRAE Transactions (American Society of Heating, Refrigerating and Air-Conditioning Engineers); (USA) Journal Volume: 95, Part 2
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
AIR FLOW
AIR POLLUTION
AIR QUALITY
BUILDINGS
ENERGY SYSTEMS
ENERGY TRANSFER
ENVIRONMENTAL QUALITY
FLOW MODELS
FLUID FLOW
GAS FLOW
HEAT TRANSFER
INDOOR AIR POLLUTION
MATHEMATICAL MODELS
POLLUTION
SPACE HVAC SYSTEMS
THERMAL ANALYSIS
VENTILATION