how FOULING effectd the heat transfer rate
Answers were Sorted based on User's Feedback
Answer / harry
as thermal conductivity of fouling is low so it decrease
the heat transfer rate
Is This Answer Correct ? | 42 Yes | 3 No |
Answer / praveen saurabh
due to fouling it add an extra heat resistance.as a result
it decrease the heat transfer rate.
Is This Answer Correct ? | 28 Yes | 4 No |
Answer / mb
As intensity of fouling increases the resistance to Heat
transfer is idecreses as rate of heat transfer is
inversaly proportional to thickness
Is This Answer Correct ? | 24 Yes | 9 No |
Answer / shravan kumar
Fouling increases the thickeness of the heat transfer
surface which results into a increased resistance to heat
transfer and hence the rate of heat transfer decreases.
Is This Answer Correct ? | 11 Yes | 2 No |
Fouling increases the thickness of the heat transfer
surface. It add an extra heat resistances a result
it decrease the heat transfer rate.
Since rate of heat transfer is inversely proportional to the
thickness of the heat transfer surface and fouling increases
the thickness, therefore fouling decreases the heat
transfer rate.
Is This Answer Correct ? | 5 Yes | 2 No |
Answer / rajasekhar
Fouling means accumilation of impurities in heat
exchangers,if fouling factor increases heat transfer rate
decreases.
Due to fouling tubes will corrode there won't be proper
heat exchange between hot and cold fluid.
Is This Answer Correct ? | 8 Yes | 6 No |
Answer / eswar
as every chem people know abot it..as thickness of layer
increses heat resisitance increases...heat transfer rate is
lowerd....it is more observed in boilers....some times it
leads boiler accidents....bcoz of dis caustic embrittlement
occured mostly in boilers
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / umesh medhavale
Fouling is inversely propotional to Heat transfer rate,
fouling means impurities settel inside and outside of tube,
thats effect on heat transfer rate
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / vikrant kumar
Fouling is dirt materials deposit on heat trasfer
surface.Since its heat resistance value is high,So Heat
transfer rate will reduce after formation of fouling.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / lokesh singh
h=k/d, where d is the thickness of wall across which heat
transfer takes place,if we increase d by anyway then
resistance to heat transfer is going to increase but i must
tell u one thing to you guys that i am a process design
engineer(basically chemical engineer) working since last 6-
7 year in the field of design, many time during heat
exchanger design, if we take fouling factor zero then we
get value of heat transfer coeficient less ( HTRI run) as
compaired to somewhat fouling surface, this means sometime
less fouling metal surface is giving added advantage of
heat transfer as compaired to smooth metal surface, this
reverse the above low about which everyone is talking(
inversly proportional), if any one have HTRI software then
he can run and cross check my point.
Is This Answer Correct ? | 0 Yes | 1 No |
what is the PH of earth? does earth is neutral like ph value 7 for water indicating water is neutral?
Explain how do you design a vapor-liquid separator or a flash drum?
ENGINEERING DRAWING - EXAMPLE 18.2 : 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.
Question 94 - The resolution of separation, Rs for chromatography is given by the formula Rs = (difference in retention time) / (average width at the base). In a chromatogram, 3 peaks a, b and c are found. Average widths W at the bases of the solutes are : Wa = 20 s, Wb = 40 s, Wc = 30 s. Resolutions of separation, Rs for solutes b and c in comparison to a are 2 and 4 respectively. The differences in retention times T for b and c in comparison to a are (Tb - Ta) and (Tc - Ta), Ta = Tc - Tb : (a) Form 2 equations involving Rs as a function of Wa, Wb, Wc, Ta, Tb and Tc. (b) Find the values of Ta, Tb and Tc.
What is an effective means of removing silicon from aluminum?
why Torispherical heads are used in pressure vessels?
I am currently doing my btech in computer science in Coimbatore.I had intererest to do btech in chemical enginerring but couldnt get a seat. Now what are my options ,scope and future if i take mtech in chemical enginerring? And can i apply for any deemed colleges for mtech chemical enginerring through gate taking my present state into consideration(btech in cse and mtech in chemical enginerring)
in what way biot number is differ from nusselt number?
ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.23 : An engineering company would like to produce 10000 units of control instruments. Let selling price per unit = $10, variable cost per unit = $2, overall fixed cost = $30000. (a) Calculate the income obtained when all units are sold out successfully. (b) Find the overall cost of production. (c) Calculate the percentage of gross profit obtained based on the answers in (a) and (b). (d) Find the minimum units that need to be sold out successfully in order to prevent losses. (e) How many minimum units of instruments that need to be produced in order to prevent losses, if all units produced are sold out successfully?
What is the maximum recommend pipe velocity for dry and wet gases?
COMPUTER PROGRAMMING FOR ENGINEERS - EXAMPLE 17.2 : There are 5 simultaneous equations with 5 unknowns as follow : 16 V - 4 X - Z = 36, 4 X - 4 W - Y + Z = 3, 8 V + 4 W - X + Y = 10, X - W = 1, V + W = 0. Find the values of V, W, X, Y and Z accurately within 15 minutes. State the computer program that you use to get the answers.
Under what circumstances are vortex flowmeters the most accurate?