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.

What type of heat exchangers are most commonly used for a large-scale plant-cooling loop using seawater as the utility?

0 Answers  

ENGINEERING PHYSICS - EXAMPLE 30.3 : (a) The quantum number m is given by m = -s, -s + 1. If s = 0.5, find the values of m. (b) | T > = (cos T) | V > + (sin T) | H >. The V and H states form a basis for all polarizations. Let cos T = 0.8. (i) If (sin T)(sin T) + (cos T)(cos T) = 1, find the value of sin T. (ii) For | T > = a | V > + b | H >, where a x a represents the probability of | V > and b x b represents the probability of | H >. Which one is more abundant, | V > or | H >? (iii) Find the value of T without using any mathematical tools.

1 Answers  

why transmission lines using 220KV.

2 Answers  

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.6 : In a random walk, a stochastic process starts off with a score of A. This is a score for a chemical engineering test. At each discrete event, there is probability p chance you will increase your score by B and a (1 - p) chance you will decrease your score by C. The event happens T times. Let D = expected value of score. (a) Form an equation of D as a function of A, B, C, T and p. (b) Find the value of D if A = 60, B = 1, C = -1, T = 50, p = 0.5.

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Question 86 - (a) Male with genotype GGmm and phenotype gray wingless mates with female with genotype ggMM and phenotype black winged in fruit flies. G is dominant to g in color. M is dominant to m in wing shape. If the actual distribution of the second generation of the fruit flies was as follow : 890 gray wingless, 900 black winged, 115 gray winged, 95 black wingless, calculate the recombination frequency betwen the two genes and distance in recombination units. Let 1 map unit = 1 % recombination. (b) A DNA molecule has 180 base pairs and 20 % adenine. How many cytosine nucleotides are present in this molecule of DNA?

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Question 29 – For a Vernier scale that consists of 0.11 cm per section, estimate the length on actual standard ruler of 0.1 cm per section for 2.39 m and 0.91 m.

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QUANTUM BIOLOGY - EXAMPLE 33.9 : (a) Let ^ be the symbol of power where 10 ^ 1 = 10, 10 ^ 2 = 100, 10 ^ 3 = 1000 etc. Total energy consumption of the brain is about 25 Watts, whereas a Blue Gene computer requires 1.5 Mega Watts. Blue Gene computer performs at 1 petaflop. In a human body, there are approximately 10 ^ 16 synapse operations per second i. e. at least 10 petaflops. Prove by calculations that a human brain is more energy efficient than a Blue Gene computer. (b) Quantum effects and quantum entanglement in the brain are identical to quantum gravity and string theory. If one is true, the other is true. What conclusion can be made if quantum effects in the brain and quantum gravity are true?

1 Answers  

When using a pumping loop to mix two miscible fluids in a tank, when can the content are considered well mixed?

0 Answers  

DIFFERENTIAL EQUATIONS - EXAMPLE 20.1 : By using Excel program either on laptop or desktop PC, solve the differential equation dy / dx = -2y + x + 4 with h = 0.005, initial values : x = 0, y = 1. The 4th order Runge-Kutta method provides : y(N + 1) = y(N) + (1/6) (k1 + 2k2 +2k3 + k4), k1 = h [ -2y(N) + x(N) + 4 ], k2 = h { -2 [ y(N) + k1 / 2 ] + x(N) + h / 2 + 4 }, k3 = h { -2 [ y(N) + k2 / 2 ] + x(N) + h / 2 + 4 }, k4 = h { -2 [ y(N) + k3 ] + x(N) + h + 4 }. What is the value of y at x = 0.5?

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hello everyone do anyone have interview questions for any chemical industry please email me at

0 Answers   ONGC,

distillation types (vacuum, azeotropic, steam, extractive)

1 Answers  

why sphericle shaped vessele used for storage of petrol?

3 Answers