What is the best way to handle bend or turns in slurry piping systems?

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What is the pattern of interview questions and which field is of high importance viz., Mass Transfer, Heat Transfer, Petroleum Refining etc ?

2 Answers   Cairn, IOCL, Reliance,

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For what ration of Lengh/Dia. of tank (Jacketed tank), maximum heat transfer area is available?

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what is the difference between the heat exchanger and cooling tower???????????

10 Answers   BARC, Essar,

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pls send me model paper of NPCIL for executive trainee. and syllabus of executive trainee 2015.

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What factors go into designing the vapor space of kettle type reboiler?

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Explain how can one determine if a particular solid can be fluidized as in a fluidized bed?

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please send me Ongc Exam Previous Papers... To MU MAil Id: muyyaboina.kalyani@gmail.com

1 Answers  

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What do you understand by wet bulb globe temperature?

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A concentric, counter-current heat exchanger is used to cool lubricating oil. Water is used as the coolant. The mass flow rate of oil into the heat exchanger is 0.1 kg / s = FO. For oil, the inlet temperature TIO = 100 degree Celsius and the outlet temperature TOO = 55 degree Celsius. For water, the inlet temperature TIW = 35 degree Celsius and the outlet temperature TOW = 42 degree Celsius. What is the mass flow rate of water in kg / s, FW needed to maintain these operating conditions? Constant for heat capacity of oil is CO = 2131 J /(kg K) and for water is CW = 4178 J /(kg K). Use the equation (FO)(CO)(TIO – TOO) = (FW)(CW)(TOW – TIW).

1 Answers  

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PROCESS CONTROL - EXAMPLE 6.2 : A stream with volumetric flow rate Q enters a cylindrical tank and a stream with volumetric flow rate q exits the tank. The fluid has a constant heat capacity and density. There is no temperature change or chemical reaction occurring in the tank. Develop a model for determining the height of the tank, h. Let V is the volume, A is the cross sectional area, r is the density, m is the mass, where V and A are for the tank, r and m are for the fluid. The rate of mass of fluid accumulation, dm / dt = (Q - q) r. Prove the model to be dh / dt = (Q - q) / A.

1 Answers  

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How to calculate 40% of level in cylindrical vessel?

2 Answers  

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