Exhaust temperature reduction
Exhaust temperature reduction
(OP)
I am working on an industrial scrubber, which is operated by a three speed 0.97L diesel engine. The scrubber is made of rotomolded parts which are very sensitive to heat. Since the exhaust temperature of the engine is around 1200 deg F it is melting the rotomolded components (chassis) around it. Currently heat wraps are used to insulate the exhaust pipe but they are very expensive( over $600). We cannot use EGR as it is against the regulations. Is there a solution to bring down or safely dissipate the exhaust heat without damaging the plastic around it. Thanks!





RE: Exhaust temperature reduction
"Schiefgehen wird, was schiefgehen kann" - das Murphygesetz
RE: Exhaust temperature reduction
je suis charlie
RE: Exhaust temperature reduction
http://i144.photobucket.com/albums/r198/laserman22...
"Formal education is a weapon, whose effect depends on who holds it in his hands and at whom it is aimed." ~ Joseph Stalin
RE: Exhaust temperature reduction
RE: Exhaust temperature reduction
RE: Exhaust temperature reduction
Is the exhaust mounted to the rotomolded components (chassis), or vice versa, so conducted heat is a problem in addition to radiated heat? I'm guessing convection of air heated by the exhaust is not a big part of the problem, although I guess if the chassis is above the pipes it could be.
if there is room for a single or better yet double wall heat shield with an air space it can be pretty effective for radiated heat.
It is pretty common to use a double shield around the potentially VERY hot catalytic converter.
http://www.heeltoeauto.com/files/pitboard/tsxproje...
RE: Exhaust temperature reduction
RE: Exhaust temperature reduction
RE: Exhaust temperature reduction
"Formal education is a weapon, whose effect depends on who holds it in his hands and at whom it is aimed." ~ Joseph Stalin
RE: Exhaust temperature reduction
You could get a small radiator with a fan and a transfer pump to flow the coolant through it. Weld a box around the exhaust pipe that is water tight and put an inlet and outlet for coolant on opposite sides of it. It might be a fun project since it probably doesn't need to be perfect
"Formal education is a weapon, whose effect depends on who holds it in his hands and at whom it is aimed." ~ Joseph Stalin