No.36 Method for evaluating the standard enthalpy of formation of coal

Abstract

AIST expressed molecular formula of coal by CH_mO_n, and obtained the number of atomic bond such as C-C, C-H, C-O and O-H in it based on the data related to the chemical structure of coal, and estimated its standard enthalpy of formation (h_f). Gross heating values of 100 kinds of standard sample registered in Coal Bank of AIST calculated from h_f estimated by our method. Results of calculation agreed with those measured by calorimeter with accuracy better than around 3%.