The issue of lower calorific value
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I’m just starting to learn about this topic, and I have a question for the experts on this forum. I hope you can help me out. How is the LHV of a mixed gas or mixed liquid generally calculated? Only some gases have their LHV listed online or in relevant materials; but for most substances, what are the ways to obtain data on their lower heating value? Also, based on theoretical calculations – those using CHO and similar methods – it seems that the errors are quite large. I hope those who know more about this can provide some guidance?
Calculated using the DULONG formula, based on the mass percentage of CHONS and H2O. 81C+342.5(H-O/8)+22.5S-5.85(9H+W)
There are now mature calorimeters available, and I think using them for measurements yields quite accurate results