Gas-dynamics characteristics of wave energy exchanger as high-temperature preheater-compressor

Conference · Thu Dec 01 00:00:00 EST 1983 · Alternative Energy Sources; (United States)

OSTI ID:6891146

Zubatov, N

In the magnetohydrodynamic (MHD) energy conversion and high-temperature steel production technological processes the air preheater is an essential component. It preheats the air used in fuel combustion, so that the flame temperature can reach the high levels required by the process. Many studies have indicated that air preheat temperature significantly affects MHD plant efficiency and blast-furnace performance. Combustion air preheating can be accomplished by either of two methods. One method (MHD power plant) utilizes the heat energy of the MHD generator exhaust gas directly. In this case, the preheater, classified as directly-fired, is located in the MHD generator exhaust gas stream as part of the bottoming plant. The alternate method of preheating the combustion air (blast-furnace systems) utilizes a separate heat source and fires the preheater with a clean fuel. This type of preheater is classified as indirectly-fired. The regenerative heat exchangers are used for both methods to achieve the high air preheat temperature required for combustion. Such heat exchangers operate on the principle of transferring heat through a separating medium that is heated for a time by a hot fluid, then cooled by a fluid of lower temperature. The preheater system requires several regenerators, arranged in parallel and with switchover valves, in order to deliver a continuous flow of preheated air.

• Research Organization: Purdue Univ., Calumet Hammond, IN
• OSTI ID: 6891146
• Report Number(s): CONF-831205-
• Journal Information: Alternative Energy Sources; (United States), Conference: 6. Miami international conference on alternative energy sources, Miami Beach, FL, USA, 12 Dec 1983
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR HEATERS
DESIGN
BLAST FURNACES
MHD GENERATORS
AIR
AIR FLOW
EFFICIENCY
HEAT EXCHANGERS
HEAT RECOVERY
HEAT TRANSFER
HEAT TRANSFER FLUIDS
MHD POWER PLANTS
PRODUCTION
STEELS
ALLOYS
DIRECT ENERGY CONVERTERS
ENERGY RECOVERY
ENERGY TRANSFER
FLUID FLOW
FLUIDS
FURNACES
GAS FLOW
GASES
HEATERS
IRON ALLOYS
IRON BASE ALLOYS
POWER PLANTS
RECOVERY
300103* - MHD Generators- Materials
Components
& Auxiliaries
320303 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes