Heat Exchanger - Aerotech BT 400-46 Installation And Operation Maintenance

2.7

Heat Exchanger

2.8 Fuel flowing from the nozzle is ignited in the combustor (see figure 2-2). The burning fuel
strikes a plate or target in the combustor and is diffused into the heat exchanger. Air from
the fan enters holes in the side of the combustor in a manner that will ensure proper fuel-air
mixture. The burning fuel flows through the heat exchanger in a spiral path between the
surfaces of the ventilating air tubes and is expelled through the exhaust opening at the top
of casing. Ventilating or heating air is forced through the parallel tubes and the space
between the heat exchanger shell and the casing. A damper control, which is locked by a
handwheel mounted in a slot above the discharge end of the heater, is used to reduce heat
output, by reducing the air volume without reducing the temperature. Volume can be set
between full and one-half or full volume.
Figure 2-2 • Sectional View of
• • • • • • • • • • • • • • • •
AEROTECH HERMAN NELSON INTERNATIONAL INC.
100 Eagle Drive, Winnipeg, Manitoba Canada R2R 1V5
Phone: 204-633-1999 (24 Hours) Fax: 204-694-1612 Email:
Check Out Our Web site
Nozzle & Combustor
4
www.hermannelson.com New Items Added Weekly
12.18.07 REVISION 1.02
Air4ce45@aol.com