A numerical model describing the heat transfer between combustion products and ventilation system duct walls

Conference · Fri Jul 01 00:00:00 EDT 1983 · HTD (Publ.) (Am. Soc. Mech. Eng.); (United States)

OSTI ID:5333003

Bolstad, J W; Foster, R D; Gregory, W S

A package of physical models simulating the heat transfer processes occurring between combustion gases and ducts in ventilation systems is described. The purpose of the numerical model is to predict how the combustion gas in a system heats up or cools down as it flows through the ducts in a ventilation system under fire conditions. The model treats a duct with (forced convection) combustion gases flowing on the inside and stagnant ambient air on the outside. The model is composed of five submodels of heat transfer processes along with a numerical solution procedure to evaluate them. Each of these quantities is evaluated independently using standard correlations based on experimental data. The details of the physical assumptions, simplifications, and ranges of applicability of the correlations are described. A typical application of this model to a full-scale fire test is discussed, and model predictions are compared with selected experimental data.

• Research Organization: Los Alamos National Laboratory, Los Alamos, NM
• OSTI ID: 5333003
• Report Number(s): CONF-830702-
• Journal Information: HTD (Publ.) (Am. Soc. Mech. Eng.); (United States), Vol. HTD-VOL-25; Conference: 21. ASME/AIChE national heat transfer conference, Seattle, WA, USA, 24 Jul 1983
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COMBUSTION PRODUCTS
HEAT TRANSFER
DUCTS
VENTILATION SYSTEMS
COOLING
CORRELATIONS
FORCED CONVECTION
GASES
HEATING
MATHEMATICAL MODELS
RESEARCH PROGRAMS
TESTING
WALLS
CONVECTION
ENERGY TRANSFER
FLUIDS
420400* - Engineering- Heat Transfer & Fluid Flow
400800 - Combustion
Pyrolysis
& High-Temperature Chemistry