Plz if anybody has placement paper of HAL mail me i m Chemical engg my id er.kotnala@gmail.com

0 Answers   HAL, IOCL,

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Question 40 - 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.

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Explain some of the consequences of an undersized kettle type reboiler?

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Explain why is a vacuum breaker used on shell and tube heat exchangers that are utilizing steam as the heating utility?

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What is the Chemical Formula of Mineral Oil used in Transformer. It is Challenged for all Chemical Engineers.

6 Answers   Ambuja, Oil and Gas Jobs,

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A distillation column separates 10000 kg / hr of a mixture containing equal mass of benzene and toluene. The product D recovered from the condenser at the top of the column contains 95 % benzene, and the bottom W from the column contains 96 % toluene. The vapor V entering the condenser from the top of the column is 8000 kg / hr. A portion of the product from the condenser is returned to the column as reflux R, and the rest is withdrawn as the final product D. Assume that V, R, and D are identical in composition since V is condensed completely. Find the ratio of the amount refluxed R to the product withdrawn D. Hint : Solve the simultaneous equations as follow in order to find the answer (R / D) : 10000 = D + W; 10000 (0.5) = D (0.95) + W (0.04); 8000 = R + D.

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Explain why is post-weld heat treatment (stress relieving) sometimes necessary for welded vessels?

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Explain how can you determine the proper pipe thickness for a slurry line?

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Explain what are some common precipitating agents used to remove metals from aqueous waste streams?

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hi.i m student of chemical engg. and studying in 5 th sem.how can i improve my technical knowledge..can u sugest me a link like book or any website..?

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What type of flow measurement devices is best for slurries?

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Are carbon steel storage tanks appropriate for NaOH solutions?

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