Answer / kamlesh dhatrak

Multigrade Sand Filter also consist of a vertical or
horizontal pressure vessel with a set of frontal pipe work
and valves, media consist of different sizes and grade mixed
and supported by layers of pebbles and gravels, a top
distributor to distribute the incoming water uniformly
throughout the cross section of the filter, and an under
drain system to collect filtered water.

This filter performs at a substantially higher specific flow
rate than conventional filters. The basic difference between
Pressure Sand Filter (PSF) and Multigrade Sand Filter (MGF)
are media used in vessel and velocity variation.

and
Dual media filter contain anthracite in combination with
sand supported by pebble and gravels. Theses filter consist
of a layer of anthracite (1.25-2.5mm) resting on a layer of
fine sand (1-1.5mm) Anthracite is coarse and has more dirt
holding capacity as compared to sand.

could any one plzz give me the placement tech papers taken by iocl,and bpcl in chemical stream..... my id is.... mishra.gaurang@gmail.com

0 Answers  

---

What is the working of vaccum distilation coloumn in a petroleum refinary?

4 Answers  

---

Question 106 - In a wavefunction, let P(x) = A cos kx + B sin kx. By using the boundary conditions of x = 0 and x = l, where P(0) = P(l) = 0, prove by mathematical calculation that P(x) = B sin (npx / l) where p = 22 / 7 approximately, n is a rounded number. A, B and k are constants.

1 Answers  

---

What are the uses of quicklime?

0 Answers  

---

we have 2 O2/Comb Analyzers Servomex Model 2700 in service for one of the furnaces in our chemical plant. It is giving High Temperature Alarm. Checked Temperature and found it to be 800 Deg C whereas Set Point is 700 Deg c. It is strange why is temperature not at SP. Also response is 23 % with 21 % Inst Air and with N2 reading is not coming down. please clarrify this issuses very urgent

1 Answers  

---

HEAT TRANSFER - EXAMPLE 5.3 : In a cylinder with a hollow, let a is outside radius and b is the inside radius. In a steady state temperature distribution with no heat generation, the differential equation is (d / dr) (r dT / dr) = 0 where r is for radius and T is for temperature. (a) Integrate the heat equation above into T(r) in term of r. (b) At r = a, T = c; at r = b, T = d. Find the heat equation of T(r) in term of r, a, b, c, d.

1 Answers  

---

What are the customization steps in sap?

0 Answers  

---

Question 47 - In a cylinder with a hollow, let a is outside radius and b is the inside radius. In a steady state temperature distribution with no heat generation, the differential equation is (d / dr) (r dT / dr) = 0 where r is for radius and T is for temperature. (a) Integrate the heat equation above into T(r) in term of r. (b) At r = a, T = c; at r = b, T = d. Find the heat equation of T(r) in term of r, a, b, c, d.

1 Answers  

---

What is some good advice for specifying allowable pressure drops in shell and tube exchangers for heavy hydrocarbons?

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  

---

What is the process of Scrubber ?

3 Answers  

---

Specific Heat of Bagasse at 50% moisture, 40% moisture and 25% moisture?

0 Answers  

---