Air Requirements for Coal Combustion

What volume of air is necessary, per minute, to burn one pound of anthracite in one hour?

0-1 gallons per minute
5
19%
1-3 gallons per minute
2
8%
4-6 gallons per minute
4
15%
7-10 gallons per minute
5
19%
11-15 gallons per minute
2
8%
16-20 gallons per minute
3
12%
21-30 gallons per minute
1
4%
31-40 gallons per minute
0
No votes
41-50 gallons per minute
1
4%
51-75 gallons per minute
3
12%
 
Total votes : 26

Re: Air Requirements for Coal Combustion

PostBy: vfw3439 On: Fri Sep 27, 2013 10:58 pm

I found this information in an old book

Steam : its generation and use (1922)
Author: Babcock & Wilcox Company

Chad
vfw3439
 
Hand Fed Coal Stove: Fuller & Warren No. 4
Baseburners & Antiques: Glenwood Base Heater No. 8, Crawford Tropic 112, Fuller & Warren No. 4
Coal Size/Type: Stove/Egg Size Anthracite Coal
Stove/Furnace Make: Glenwood Base Heater No. 8
Stove/Furnace Model: Crawford Tropic 112

Re: Air Requirements for Coal Combustion

PostBy: Rigar On: Sat Sep 28, 2013 5:32 pm

Lightning wrote:So according to this table, one pound of Anthracite Coal needs 11.7 pounds of air for combustion..

My basement is roughly 15ft x 15ft x 7ft cube = 1575 cubic feet..

SO if this is all correct then my furnace uses one full volume of the basement in combustion air every 5 and half hours..

And that doesn't count what the baro is sucking up the chimney which I would think is grossly more than combustion. :lol:



....the amount of air turnover...by volume...in most of our homes is pretty staggering- most ppl dont believe the math
Rigar
 
Hot Air Coal Stoker Furnace: Keystoker A 150
Coal Size/Type: anthracite rice
Stove/Furnace Make: Keystoker
Stove/Furnace Model: A 150 warm air furnace

Re: Air Requirements for Coal Combustion

PostBy: Pacowy On: Sat Sep 28, 2013 7:30 pm

When you're heating your house most of the mass you're heating is the house itself - walls, floors, etc., - not the air in it. It doesn't take a lot of btu's to heat just the air, so some amount of turnover of air is not a big problem. If anything, turnover of air is needed to maintain the quality of the air in the house.

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Visit Hitzer Stoves

Re: Air Requirements for Coal Combustion

PostBy: Rigar On: Sat Sep 28, 2013 8:01 pm

Pacowy wrote:When you're heating your house most of the mass you're heating is the house itself - walls, floors, etc., - not the air in it. It doesn't take a lot of btu's to heat just the air, so some amount of turnover of air is not a big problem. If anything, turnover of air is needed to maintain the quality of the air in the house.

Mike


I totally agree...

but some ppl just cant believe how much "air " the average home turnsover in a day....even when you show them !

EXAMPLE: in Lightnings scenario above... the typical electric household CLOTHES DRYER would evacuate his basement in about 11 minutes....as compared to his stove ( 5 1/2 hrs)
...
Rigar
 
Hot Air Coal Stoker Furnace: Keystoker A 150
Coal Size/Type: anthracite rice
Stove/Furnace Make: Keystoker
Stove/Furnace Model: A 150 warm air furnace

Visit Hitzer Stoves