Answer / nilkanth patni

operation at which only physical changes occurs isknown as
the unit operation.
eg, distillation, drying, filtration etc....

Answer / guest

NO CHEMICAL REACTION INVOLVED

Answer / priyank sompura

distilation , drying ,absorption etc.................... are
unit operation

Answer / faiz khan

Suppose we are synthesizing aspirin in the lab then there are a number of operation we have to perform like mixing, heating, evaporating the solvent or filtering the solid and then drying to get the final product (aspirin). This is a unit process(synthesis of aspirin) in which a number of unit operations are involved.

Answer / manish

Drying,crystallisation,extration,and many heat transfer cofficient all process in unit operation
No chemical reaction involved in process

Answer / hm

Unit operation is part of chemical process industries to raw material convert in product only involves physical changes.
Ex. Mass transfer , crystallisation , fluid flow operation , mass operation , gas absorption etc

Answer / sharief

mixersettlers,distillation coloumns,driers,......

Answer / vibha porwal

unit operation is just like telling us about the procedure
for any equipment to operate.

Why in a continuous plant for a Hot standby screw pump system the interlock for auto starting of the other pump ( when the running pump stopped suddenly) is given with header pressure only? why not with flow rate or current of the pump?

0 Answers   Haldia,

Dear guys we adding hypo at climax plant and that water is inlet to DM plant so with hypo water that can affect my resins of cation and anion. if it is affect life of my anion and cation so what kind of steps should be take.

0 Answers   Hindustan Unilever Limited,

what is the symbol of sodiumj

2 Answers   HCL,

how much type question asking sulfuric acid plat interview. if not maintain acid temp. and conc. what will happen

1 Answers  

QUANTUM BIOLOGY - EXAMPLE 33.7 : (a) In a DNA of a living cell, the quantum information available in the bases guanine (G) and thymine (T) are | G > = | 110 > and | T > = | 010 > respectively. Calculate | G > - | T >. (b) In a living biological cell, the step time for random walk of an electron is t. The localization time of an electron is T. If i is the geometric average of T and t, find log T as a function of t and i.

1 Answers  

AS PER IS(INDIAN STANDARD)RULES, IS INSTRUMENT EARTHING REQUIRE FOR INSRTUMENT WHICH IS ONLY 24V DC POWERED?

1 Answers  

HOw to derive reynolds equation?

1 Answers  

Question 73 - (a) A dryer reduces the moisture content of 100 kg of a potato product from 80 % to 10 % moisture. Find the mass of the water removed in such drying process. (b) During the drying process, the air is cooled from 80°C to 71°C in passing through the dryer. If the latent heat of vaporization corresponding to a saturation temperature of 71°C is 2331 kJ / kg for water, find the heat energy required to evaporate the water only. (c) Assume potato enters at 24°C, which is also the ambient air temperature, and leaves at the same temperature as the exit air. The specific heat of potato is 3.43 kJ / (kg °C). Find the minimum heat energy required to raise the temperature of the potatoes. (d) 250 kg of steam at 70 kPa gauge is used to heat 49,800 cubic metre of air to 80°C, and the air is cooled to 71°C in passing through the dryer. If the latent heat of steam at 70 kPa gauge is 2283 kJ / kg, find the heat energy in steam. (e) Calculate the efficiency of the dryer based heat input and output, in drying air. Use the formula (Ti - To)/(Ti - Ta) where Ti is the inlet (high) air temperature into the dryer, To is the outlet air temperature from the dryer, and Ta is the ambient air temperature.

1 Answers  

Explain the functioning of a three-way catalytic converter.

0 Answers  

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.4 : A university is enrolling new students of biochemical engineering degree. A long queue is formed during registration. Let L = rate of newcomers to a queue, m = number of clients served at a certain time, T = time in system. In M / M / 1 queue, let T = time waiting in a queue + service time, L = 2 / second, m = 3 / second. (a) Find the service time, A = 1 / m. (b) Calculate time waiting in a queue, B = A (L / m) / (1 - L / m). (c) What is the value of T?

1 Answers  

Why does a fractionating column does not catch fire even though it operates at temperature greater than 400 degree C ?

5 Answers   ONGC,

What is are the main terms in Unit Operations? and what is its charecteristics?

8 Answers   HPCL,