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2.3. MegaMacs’ Heat Exchanger Heating efficiency 1,26 million kcal/hour on diesel. Brush flame long – (1,83 - 2,13) m. Brush flame diameter – 457 mm. Air flow to combustion chamber – 1542 m3/hour. Flue gas temperature – 5380С. Flame temperature– 19000С. Heat-exchange surface – 31,1 m2. Coil material – АSТМ А 106 Grade B. Heat exchanger housing diameter - 864 mm, material API 5L Grade B. Thermo isolation installed under ASME SA-515-70 cover. Cover diameter -914 mm.Heated liquid flow though heat exchanger coil – 68 m 3/hour.Automatic control of heat exchanger operation with emergency shutdown: - no extraction liquid flow through coil of heat exchanger, - low air pressure to fuel low air pressure for extraction liquid spraying, - low fuel feeding pressure, - extraction liquid overheating.   |