The temperature variation in various zones (preheating, drying,
pyrolysis, oxidation and reduction zones) of the gasifier was
measured by using S-type thermocouples (Procon make thermocouple,
range: 0e1500 C; element: Pt/Pt Rh, 10% simplex; element
dia.: 0.45 mm; outer sheath: ceramic OD ID 15 mm 11 mm:
inner sheath: OD ID 8 mm 5 mm). The thermocouples were
specially manufactured for various lengths and stainless steel was
used as holding tube