Adjunct
to
ASTM
E
XXXX
Wood
Heater
Cordwood
Test
Method
Ͳ
May
10,
2017
Version
Cordwood
Fuel
Load
Calculators
Ͳ
12
lb/ft
3
Nominal
Load
Density
Core
45
Ͳ
65%
of
Total
Load
Weight,
Remainder
35
Ͳ
55%
of
Total
Load
Weight
Values
to
be
input
manually
For
Usable
Firebox
Volumes
up
to
3.0
ft
3
Ͳ
Low
and
Medium
Fire
Nominal
Required
Load
Density
(wet
basis)
12
lb/ft
3
Usable
Firebox
Volume
2.00 ft
3
Total
Nom.
Load
Wt.
Target
24 lb
Total
Load
Wt.
Allowable
Range
22.80
to
25.20
lb
Core
Target
Wt.
Allowable
Range
10.8
to
15.60
lb
Remainder
Load
Wt.
Allowable
Range
8.40
to
13.20
lb
Mid
Ͳ
Point
Core
Load
Fuel
Pc.
Wt.
Allowable
Range
3.60
to
6.00
lb
4.80
Remainder
Load
Pc.
Wt.
Allowable
Range
2.40
to
7.20
lb
4.80
Fuel
Piece
Moisture
Reading
(%
Ͳ
dry
basis)
Pc.
#
1
2
3
Ave.
Core
Load
Piece
Wt.
Actual
1
4.60 lb
In
Range
25.6
19.3
18.9
21.3
In
Range
3.79
lb
1.72
kg
2
4.40 lb
In
Range
23.1
18.3
18.5
20.0
In
Range
3.67
lb
1.66
kg
3
3.90 lb
In
Range
27.9
27.8
24.4
26.7
In
Range
3.08
lb
1.40
kg
Core
Load
Total.
Wt.
Actual
12.90 lb
In
Range
Pc.
#
Remainder
Load
Piece
Wt.
1
5.60 lb
In
Range
23.6
22
18.2
21.3
In
Range
4.62
lb
2.09
kg
(2
or
3
Pcs.)
2
3.10 lb
In
Range
23.4
22
19.7
21.7
In
Range
2.55
lb
1.16
kg
3
3.50 lb
In
Range
27.2
18.6
18.5
21.4
In
Range
2.88
lb
1.31
kg
Remainder
Load
Piece
Weight
Ratio
Ͳ
Small/Large
55%
In
Range
ч
67%
Total
Load
Ave.
MC
%
(dry
basis)
21.9
In
Range
Remainder
Load
Tot.
Wt.
Act
12.20 lb
In
Range
Total
Load
Ave.
MC
%
(wet
basis)
18.0
Total
Load
Wt.
Actual
25.10 lb
In
Range
Total
Test
Load
Weight
(dry
basis)
20.59
lb
9.34
kg
Core
%
of
Total
Wt.
51%
In
Range
45
Ͳ
65%
Total
Fuel
Weight
Burned
During
Test
Run
(dry
basis)
20.6
lb
9.34
kg
Remainder
%
of
Total
Wt.
49%
In
Range
35
Ͳ
55%
Actual
Load
%
of
Nominal
Target
105%
In
Range
95
Ͳ
105%
Actual
Fuel
Load
Density
12.6 lb/ft
3
Allowable
Charcoal
Bed
Wt.
Range
(lb)
2.6
to
5.0
Mid
Ͳ
Point
Actual
Charcoal
Bed
Wt.
2.6 lb
In
Range
3.8
Actual
Fuel
Load
Ending
Wt.
0.0 lb
Valid
Test
ш
90%
Total
Wt.
of
Fuel
Burned
During
Test
Run
lb.
25.1 lb
Pc.
Wt.
Dry
Basis
THIS DOCUMENT IS NOT AN ASTM STANDARD; IT IS UNDER CONSIDERATION WITHIN AN ASTM
TECHNICAL COMMITTEE BUT HAS NOT RECEIVED ALL APPROVALS REQUIRED TO BECOME AN ASTM STANDARD.
IT SHALL NOT BE REPRODUCED OR CIRCULATED OR QUOTED, IN WHOLE OR IN PART, OUTSIDE OF ASTM
COMMITTEE ACTIVITIES EXCEPT WITH THE APPROVAL OF THE CHAIRMAN OF THE COMMITTEE HAVING
JURISDICTION AND THE PRESIDENT OF THE SOCIETY.
COPYRIGHT ASTM, 100 BARR HARBOR DRIVE, WEST
CONSHOHOCKEN, PA 19428. ALL RIGHTS RESERVED
.
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