Greenwood Frontier CX, Инструкция по установке и эксплуатации

Страница: 12 / 58

INTRODUCTION
Page 8 © 2013 Greenwood Clean Energy, Inc All Rights Reserved V1.9
Air Flow through the Furnace
1. Under-Fire Zone: Under-fire air entering through the pinhole grate combined with heat drives the
rate of pyrolysis (the release of gases from the wood fuel).
2. Combustion Zone: 750 lbs (340 kg) of refractory reflect energy back into combustion chamber
maintaining optimum combustion temperatures.
3. Crossfire Zone: Over-fire air is added following the separation of gases from the wood pile.
4. Burn-Out Zone: Combustion is completed in the burn-out zone where gas temperatures reach 2000
o
F (1100
o
C).
5. Heat Transfer Zone: Heat is transferred from the hot combustion gasses to the water-tube heat
exchanger in an isolated chamber. This is the only area where heat is transferred to water.
6. Exhaust Zone: Exhaust gases leave the boiler at temperatures of 200 – 450
o
F (93
o
C to 205
o
C)
depending on firing rate.
Side View of Air Flow through the Frontier CX