the gas LHV decreases from 13.8 MJ/Nm3(Thirteen point eight เมกะจูนbyนิวตันเมตร cubed) to 12 MJ/Nm3(เมกะจูนbyนิวตัน cubed)). This finding is attributed to the decreases in CH4(มีเทน) levels from 19.7%(nineteen point seven%) to 7.4%(seven point four%) and in CnHm levels from 3.6%(three point six%) to 1.2%(one point two%)