Development of a vortex combustor (VC) for space/water heating applications (cold flow modeling)

Technical Report · Thu Mar 01 04:00:00 EST 1990

OSTI ID:5826465

Nieh, S

Research continued on the development of a vortex combustor (VC). A complete full-scale VC cold model test system has been established for systematic measurements of gas-particle flows. This system together with the developed particle instrumentation were found to be convenient and reliable for gas-particle flow study. Exploratory tests of particle entrainment and residence time were conducted in the exploratory and bench-scale VC models. The center tube height was shown to have a significant effect on particle behavior in the VC. The particle residence time was fairly long in the VC due to the strong centrifugal interaction. Measurements of particle mass flux and size distributions were conducted in the full-scale VC model. The tests have provided useful data for the VC design and development. The radiation heat transfer model was established and incorporated into the mathematical model for the VC processes. The associated computer program was developed and successfully coupled with the current programs for gas flow, particle flow, and gas combustion. 5 refs., 14 figs., 3 tabs.

• Research Organization: Catholic Univ. of America, Washington, DC (USA). Combustion and Multiphase Flows Lab.
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC22-87PC79661
• OSTI ID: 5826465
• Report Number(s): DOE/PC/79661-T8; ON: DE91013187
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTORS
DESIGN
DOCUMENT TYPES
ENERGY SOURCES
ENERGY TRANSFER
FLUID FLOW
FLUID MECHANICS
FOSSIL FUELS
FUELS
GAS FLOW
HEAT TRANSFER
HEATING
HYDRODYNAMICS
MATERIALS
MATHEMATICAL MODELS
MECHANICS
NOZZLES
OXIDATION
PROGRESS REPORT
RADIANT HEAT TRANSFER
SOLIDS FLOW
SPACE HEATING
THERMOCHEMICAL PROCESSES
WATER HEATING