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TableĀ 5 The calculation formula of energy parameter

From: Improvement of corn stover fuel properties via hydrothermal carbonization combined with surfactant

Term Equation
Solid recovery (%) \( \frac{{{\text{Mass}}\;{\text{of}}\;{\text{dried}}\;{\text{solid}}\;{\text{product}}}}{{{\text{Mass}}\;{\text{of}}\;{\text{dried}}\;{\text{initial CS}}}}\;*\;100 \)
Carbon recovery efficiency (%) \( \frac{{{\text{carbon }}\;\left( {\text{\% }} \right)\;{\text{in}}\;{\text{solid}}\;{\text{product}}\;*\;{\text{solid}}\;{\text{product}}\;{\text{weight}}}}{{{\text{carbon}}\;\left( {\text{\% }} \right)\;{\text{in}}\;{\text{CS}}\;*\;{\text{CS}}\;{\text{weight}}}}\;*\;100 \)
Fixed carbon recovery efficiency (%) \( \frac{{{\text{Fixed}}\;{\text{carbon}}\;\left( {\text{\% }} \right) \;{\text{in}}\;{\text{solid product}}\;*\;{\text{solid}}\;{\text{product}}\;{\text{weight}}}}{{{\text{Fixed}}\;{\text{carbon}}\;\left( \% \right) \;{\text{in}}\;{\text{CS}}\;*\;{\text{CS}}\;{\text{weight}}}}\;*\;100 \)
Energy densification efficiency (%) \( \frac{{{\text{calorific}}\;{\text{value}}\;{\text{of}}\;{\text{solid}}\;{\text{product}}}}{{{\text{calorific}}\;{\text{value}}\;{\text{of}}\;{\text{CS}}}}*100 \)
Energetic retention efficiency (%) \( \frac{{{\text{calorific}}\;{\text{value}}\;{\text{of}}\;{\text{solid}}\;{\text{product}}}}{{{\text{calorific}}\;{\text{value}}\;{\text{of}}\;{\text{CS}}}}\;*\;{\text{Solid}}\;{\text{recovery}} \)
HHV improvement (%) \( \frac{{{\text{HHV}}\;{\text{of}}\;{\text{solid}}\;{\text{product}} - {\text{HHV}}\;{\text{of}}\;{\text{CS}}}}{{{\text{HHV}}\;{\text{of}}\;{\text{CS}}}}\;\;*\;\;100 \)