Energies 2021 , 14 , 3203
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( a )
( b )
( c )
( d )
( e )
Figure 13. The decreases in measured values for C-440 corrugated cardboard in: ( a ) BNT; ( b ) SST; ( c ) TST; ( d ) ECTand ( e ) THK2. Table3. The coefficient of determination R 2 between crushing and normalized values.
Cardboard Index
THK2
ECT BNT-MD BNT-CD SST-MD SST-CD TST-MD TST-CD
B-285 B-410 C-340 C-440
0.154 0.001 0.111 0.000
0.481 0.596 0.016 0.452
0.928 0.986 0.517 0.967
0.705 0.687 0.861 0.841
0.995 1.000 0.719 0.855
0.964 0.992 1.000 0.999
0.914 0.535 0.542 0.290
0.932 0.988 0.993 0.968
( a )
( b )
( c ) ( d ) Figure 14. The decreases in measured values (average from two directions) for corrugated board with an index: ( a ) B-285; ( b ) B-410; ( c ) C-340 and ( d )C-440.
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