Any value to combustion testing?

Any value to combustion testing?

PostBy: jpete On: Thu May 23, 2013 9:58 pm

I recently got a Bacharach combustion tester and it comes with various slide rules to calculate efficiency.

I was surprised to see both an anthracite and a bituminous chart so I started wondering if it would even be worth testing.

I don't know what I could do to increase the efficiency if it was low, but it might be interesting to know...
jpete
 
Hand Fed Coal Stove: Harman Mk II
Coal Size/Type: Stove, Nut, Pea
Other Heating: Dino juice

Re: Any value to combustion testing?

PostBy: wsherrick On: Thu May 23, 2013 10:02 pm

Gained knowledge is always of value. If not immediately apparent right away. It will certainly come in handy at some point. Plus the learning experience with the tester should be fun just to play around with.
wsherrick
 
Stoker Coal Boiler: None
Hand Fed Coal Boiler: None
Hot Air Coal Stoker Furnace: None
Hot Air Coal Stoker Stove: None
Hand Fed Coal Stove: Glenwood Base Heater, Crawford Base Heater
Hand Fed Coal Furnace: None
Baseburners & Antiques: Crawford Base Heater, Glenwood, Stanley Argand
Coal Size/Type: Chestnut, Stove Size

Re: Any value to combustion testing?

PostBy: stovepipemike On: Fri May 24, 2013 7:48 am

If this is the type analyzer that uses the red and blue liquids,safety glasses etc are a must if you ever add or change those fluids..Great piece of equipment. Mike
stovepipemike
 
Stove/Furnace Make: Keystoker
Stove/Furnace Model: KAA-2


Re: Any value to combustion testing?

PostBy: dll On: Fri May 24, 2013 9:28 am

What would be interesting is to take readings at different points of the burning cycle and stove temperatures.

Like taking samples:
When it's warm outside and the fire is at a minimum.
When it's cold outside and the fire is at a maximum.
A few minutes after a fresh stoking.
A few minutes just before shakedown and restoking.

Another interesting experiment would be taking the above readings on coal from different suppliers.
dll
 
Hand Fed Coal Stove: Harman MKII
Coal Size/Type: Nut/anthracite

Re: Any value to combustion testing?

PostBy: franco b On: Fri May 24, 2013 9:50 am

Difference in efficiency between loading in several layers versus one large batch.

Determining at just what firing rate combustion efficiency is highest and if that differs with highest overall efficiency point.

Measuring any changes after making changes in operation or maybe changes to the stove itself.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: Any value to combustion testing?

PostBy: Berlin On: Fri May 24, 2013 2:04 pm

with a stoker, it's valuable, w/ a hand-fired, not really.
Berlin
 
Hot Air Coal Stoker Furnace: Will-Burt Combustioneer 77B
Coal Size/Type: Ohio BITUMINOUS pea stoker coal

Re: Any value to combustion testing?

PostBy: jpete On: Fri May 24, 2013 5:49 pm

stovepipemike wrote:If this is the type analyzer that uses the red and blue liquids,safety glasses etc are a must if you ever add or change those fluids..Great piece of equipment. Mike


This one just has the red liquid to measure CO level. Blue liquid measures O2 and the two gases run opposite each other. I saw kits that had both but don't know why you'd need them.

The kit comes with the CO gauge, a thermometer, a smoke tester and a draft gauge. All for the low, low price of $600! :)

I bought it to install an outside air intake on my oil burner and to see if I could squeeze a little more efficiency out of it. And hopefully to earn the cost of the tool back too.

Image
jpete
 
Hand Fed Coal Stove: Harman Mk II
Coal Size/Type: Stove, Nut, Pea
Other Heating: Dino juice

Re: Any value to combustion testing?

PostBy: franco b On: Fri May 24, 2013 7:33 pm

Very little change in 50 years from the kit I had which I foolishly gave away. The case was steel then and the instrument only measured Co2. What it can't tell you is the exact pattern of the combination of the air from the burner in your particular chamber. There was a kit then that could also tell you that. A nozzle could be matched perfectly.

Before the Shell head and insulating fire brick a very good fire had a Co2 of 10 and a no. 2 smoke. A rotary burner could get close to 14 on Co2.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: Any value to combustion testing?

PostBy: jpete On: Fri May 24, 2013 8:10 pm

Now we are looking for 10-12% CO and ZERO smoke.
jpete
 
Hand Fed Coal Stove: Harman Mk II
Coal Size/Type: Stove, Nut, Pea
Other Heating: Dino juice

Re: Any value to combustion testing?

PostBy: Berlin On: Fri May 24, 2013 9:00 pm

jpete wrote:Now we are looking for 10-12% CO and ZERO smoke.


CO2 ;)

CO of 10-12 would give you just a touch more than zero smoke :P
Berlin
 
Hot Air Coal Stoker Furnace: Will-Burt Combustioneer 77B
Coal Size/Type: Ohio BITUMINOUS pea stoker coal

Re: Any value to combustion testing?

PostBy: SMITTY On: Fri May 24, 2013 10:59 pm

I always wanted a 3 or 4 gas analyzer for working on motorcycles. Those things are STUPID expensive, but you can dial in your jetting nearly perfect, especially if you have a dyno. I'd just have to tape the thing to my chest, since dynos are stupid expensive as well. :lol:

I almost jumped on one once, because I figured I could use it on the oil boiler too, which would justify the expense somewhat if I save 50 gallons of oil a year because of it. For the past 10 years I've been setting mine by eye, sound, & smell - not every scientific.

So, oil boilers use CO2 measurement? On bikes that would only tell you combustion temps. High CO2 meant the thing was melting down almost. CO & HC would tell you how well everything's burning. If you had low HC and 8% CO, that meant that engine was running REAL strong, as HC is partially burnt fuel, & CO is a measurement of burnt fuel (meaning it's very efficient, using every bit of it). The 4 gas ones also had an o2 measurement which combined with the CO & HC readings would give an better overall picture of what was happening in the engine. High o2 would indicate an air leak or an extremely lean mixture, if I remember correctly. It's been 12 years since I've touched one! That went by fast .... :shock:
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler