Boiler Actual Beef Tallow Biopellet Chemical Engineering Design Drying air velocity Fossil energy H2O heat in air Kimia Level and Temperature Microhydro power generation Steam air fuel ratio bentonit catalyst biogas biomethane catalytic cracking catalytic pirolicion chemical and energy engineering crackers crossflow turbine discharge drying energy evaporated H2O mass exergy flow direction fossil energy generator set head potential hot air kimia liquid fuel moisture content moisture content and biopelet calorific value plastic waste pressure pyrolysis raw material variation steam quality temperature zeolite