Answer / atul $onawane

The reduction in excess air means higher furnace temperature
which ultimately results in clinker formation,incomplete
combuton of fuel and results in higher operating cost.

Answer / anwar ashwak hussain

if we supply theoretical air it is not sufficient to
perform complete combustion. incomplete combustion leads to
co, so, NO formation which are hazardous to environment and
we also loose co which can be used as fuel. if we supply
higher or lower amount of excess air leads to decrease in
furnace efficiency. so we should optimize the excess air
where furnace efficiency is high.

Answer / sarav

Simply we can say to ensure the complete combustion of fuel.
Which will also reduce the toxic gas emission (CO) and also
results in effective fuel utilization which reduces the
operation cost.

Answer / vinayak m. desai

excess air give complete combustion of the fuelmeans we get
higher temp and economy operation

Answer / suraj chaudhari

To avoid smoke formation by burning fuel
completely, so rediction of particulate matter. Also
for obtaining high calorific value of fuel.

Answer / suraj chaudhari

To avoid smoke formation by burning fuel
completely, so rediction of particulate matter. Also
for obtaining high calorific value of fuel.

ENGINEERING DRAWING - EXAMPLE 18.3 : Autocad computer program is used to draw a pipe that is used to transport natural gases for processing. Actual length of the pipe is 10 metres. The pipe has cross sectional area of circle in shape with measured circumference of s = 3 metres. (a) If 10 units are used to represent the actual length of the pipe in computerised engineering drawing, find the diameter of the pipe, d that will be shown in the engineering drawing. (b) If one unit in the program equals to 1 centimetre, find the scale used in the computer program.

1 Answers  

Question 91 - In the application of Theory of Spectrometry in spectrophotometer, let n = N x C x V, V = A x t, e = a x N where n = number of molecules, N = Avogadro's number, V = volume of cuvette, A = area of cuvette, t = thickness of cuvette, C = concentration of fluid in the cuvette, e = extinction coefficient, a = effective area of molecule. (a) By using calculus in dI = -I x a x N x C x dt, prove that ln (I / Io) = -a x N x C x t, where dI is the small difference in I and dt is the small difference in t. I = intensity of light. Io = initial intensity of light. (b) Show by calculations that ln (Io / I) = e x C x t based on the answer in the previous question (a). (c) Find the equation of log (Io / I) as a function of e, C and t based on the answer in the previous question (b).

1 Answers  

how to reduce COD from plant waste water closed circulation system

1 Answers  

I want previous year question paper of ONGC for chemical engg.

0 Answers  

Question 104 - In photoelectrical effect analysis of quantum chemistry, let E = kinetic energy of electron, p = intensity of UV light, f = frequency of UV light. According to Classical Theory, E = c for all values of f, E = mp. According to Quantum Theory, E = c for all values of p, E = mf + c. In a graph, m and c are constants where m is slope and c is y intercept. If m = 2 and c = 3 with similar value of E : (a) find the value of p according to Classical Theory; (b) find the value of f according to Quantum Theory.

1 Answers  

ENGINEERING NUMERICAL METHODS - EXAMPLE 19.1 : Solve the simultaneous equation using simple Excel program : r + s - t = 7, 2r - s = 0, 3r + 2t = 15. Explain the use of functions of MINVERSE and MMULT together with the keyboard C (Ctrl) + S (Shift) + E (Enter).

1 Answers  

I am writing the chemical engineering subject test for Reliance India Limited. Could someone who has taken the test please list some of the questions from that paper?

2 Answers  

What are some characteristics of bulk solids that can affect their ability to flow properly?

0 Answers  

Is there a quick rule-of-thumb to estimate a gas side heat-transfer rate inside the tubes of a shell and tube heat exchanger?

0 Answers  

why relative humidity is different in different places

3 Answers  

Which part of oil creates smoke? ( aliphatic, aromatic, paraffin)

1 Answers  

i am a prefinal year student of polymer engineering .could you please send the latest question papers regarding entrace exam.

0 Answers   IOCL,