[Stoves] [Possible SPAM] Box-1 Fuel

[Law, Steven (MOECC)]

Hi Frank,

Please consider keeping the wood fuel hydrogen (dry basis) number included, since it is necessary to properly do the engineering calculations for HHV and LHV. We need to calculate the H2O in the wet flue gas using this number, along with the moisture content of the wood fuel.

Although hydrogen does not change much within wood species (usually around 6% dry), if you want to analyze different types of biomass the H value can vary, but of course not nearly as much as moisture content which is a much more important parameter.

Glad to know you found this information helpful.

Best regards, Steven

From: Frank Shields [mailto:franke at cruzio.com]
Sent: December 19, 2017 11:41 AM
To: Law, Steven (MOECC); Discussion of biomass cooking stoves; MHAtech at yahoogroups.com
Cc: John Ackerly; Sauve, Terrence (OMAFRA); Crispin Pemberton-Pigott; Norbert Senf
Subject: Re: [Possible SPAM] Box-1 Fuel


Hi Steven,

I like this. All of it. I would add the particle density and length to width ratio. Good to add the moisture - I forgot and left off my list. I like the hydrogen but thinking of keeping the cost of equipment down so left that out.

You must have a TGA and CHN analyzer?

Now people just need to send you a sample of their fuel. Use their fuel to cook a meal using a specific stove and record the:

Box-2) Rate and amount fuel was added.

Box-3) name of stove

Box-4) utensils used

Box-5) process of cooking (stirring, flipping, covered)

Box-6) Quality of finished task and time it took

and any helpful notes along the way. You add your fuel data and we have the first of many reports.



Well done.

Regards



Frank

Frank Shields









On 12/19/17 7:17 AM, Law, Steven (MOECC) wrote:
Hello all,

For discussion purposes, please see below a summary of the wood chip laboratory test parameters we did back in 2015 for our research study. Of interest is the moisture content, as we did multiple rounds of tests on the same samples in different labs and we found that the longer the samples sat around before testing the more moisture was lost and the same sample had lower numbers due to evaporation.

Wood Chip Laboratory Test Parameters

·         Moisture content (wet basis) - must account for potential moisture loss from the sample collection in the field to when the sample is run at the lab

·         Bulk density (wet basis, kilograms per cubic metre, kg/m³)

·         High heating value (dry basis, kJ/kg)

·         Proximate analysis (dry basis, %) for volatile matter, fixed carbon, ash

·         Ultimate analysis (dry basis, %) for carbon, hydrogen, oxygen, nitrogen, sulphur

·         Chlorine (dry basis, microgram per gram, µg/g)

·         Particle size distribution (wet basis, example shown below for illustrative purposes as not all labs will have the same screen sizes)

o    Less than 3 millimetres (mm), %

o    Above 3 mm, %

o    Above 5 mm, %

o    Above 10 mm, %

o    Above 30 mm, %

Best regards, Steven

From: Frank Shields [mailto:franke at cruzio.com]
Sent: December 18, 2017 8:25 PM
To: Discussion of biomass cooking stoves; MHAtech at yahoogroups.com<mailto:MHAtech at yahoogroups.com>; Law, Steven (MOECC)
Cc: John Ackerly; Sauve, Terrence (OMAFRA)
Subject: [Possible SPAM] Box-1 Fuel

Stovers,
Box-1 Fuel test package
I am thinking the following are the properties of biomass that effect the small stove combustion process. And that the constituents listed cross all biomass boundaries. No need to say ‘oak’ or ‘pine-cones etc. It covers the range from Richards briquettes, rice burners, dung, stick wood and chips.  Although the test methods may not perform to ASTM procedures they are designed to be easily performed in any small backyard lab and results in the working range of biomass. The list is as follows:


1)    Particle size distribution

2)    Width to length ratio

3)    Volatile matter (DAF)

4)    Fixed matter (DAF)

5)    Ash (dw)

6)    Solvent extracted (resins etc.)

7)    Water extracted (sugars & starches etc.)

8)    Particle density (using free flowing sand)

9)    Bulk density

10) %  void space (from 8 and 9)

11)   electrical Conductivity (determine soluble salts)

12) Moisture



Extra tests added where needed like toxic metals, durability, carbonates, acid soluble ash, neutralizing value and more..



Regards



Frank
Frank Shields
Gabilan Laboratory




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