Question

(Ans. 2.26] A circular tank 10 m long and 1.5 m diameter is used for oil storage. Calculate the number of days' oil supply the tank can hold for continuous operation at the following conditions: Steam flow, 2000 kg/h; Steam condition, 15 bar, dry saturated; Feedwater temperature, 110°C; Boiler efficiency, 75%, Specific gravity of fuel oil, 0.82; Calorific value of fuel oil, 42 MJ/kg. (Ans. 4.08 days) 12 The following readings, representine nercentage volume of the la

Answer 1

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The dia d = 18m, 1-10m volume 7 del = 7x15 X 10 = 17.67 m de mass of oil - volume x density - 17.678 0.82x1000 kg my mo m=14490.596.1). = Energy provided = mx Calorific value To - (14 490.59 GX 42 X 100 KT) Steam flow = 2000 kg/hr. let the number of days be ! then total steam supply - (2000) & W X 24 ) Ceday 24 hr heat required for steam Tm Albr 2000 he steams.) where = enthalpy of steam at exit x at day saturated, 15 bar 7 = 2791.01 KJ like be enthalpy of steam at inlet - 1100 - 462-35 KJ kg & = Soiler efficiency = 0.95 to = max mch) (14490-596) 242x10 - 200 by N824) h₂ h. 0.62 - 4.08 days 14490.596 x 42 x 10 x 0.35 2000 024 x Chr-hi) N =

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