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Excellent, thank you so much.

So useful, thank you for sharing.

thank you very much. It is quite informative.

Can you please provide Excel sheet for combustion calculations?

Dear Sir, I watched your video on RUclips, and it is very nice. In our gas plant ,we have Vertical Cylindrical natural draft fired gas heater. Tube design temp is 350 C, temp at the inlet of convection zone is 700 C Convection zone consist of 7 rows, first three rows from bottom to top is non-finned tubes. The rest from 4 to 7 are finned tubes. We have repeated failures in the convection zone, most tubes fails are at the fourth and fifth rows. The heater is working for regenerating the molecular sieve of the gas dryers, so it is working cyclic , 5 hours heating and then off 3 hours. At the end of heating the burners shut off and fuel cut off inside tubes at the same time while the temp at the inlet of convection tube is 700. The questions are : - Do you think the temp of the tube metal increase at moment of closing the valve of the gas inside the tubes while flue gases temp inside the heater is 700 C causing the tube failure? Is it a good idea to keep , the gas flowing inside tube after shutting off the burners to protect the tubes from flue gases high temp? - Why we have repeated failure at the first 2 rows at the finned tubes in the convection zone? Is because of the design ? Here is the design of finned tubes: Location First put in service Number of failures Fins Dimensions: Spacing (fins/m) Height (mm) Thickness (mm) MCX 2006 11 197 25.4 1.5 API560 : 197 (MAX) 25.4 (MAX) 1.3 (MIN)

Well done. Thanks

Thank you for useful information

Hello Sir, Thank you for sharing your knowledge. I have a question about the sag of an A-106 Gr B crude oil heater pipe. Can you help me understand what might cause it? Thank you.

Hi Ashutosh, I was EIL employee working in Process department and reporting to MK Joshi. I remember you were very well, You were a "GO TO PERSON" for any design issues of Heaters. Glad to see you online sharing your vast knowledge in the field of Heaters, Combustion equipment. Best of Luck. Hope to meet you one day.

Most beatiful video! which each software you draw this fired heater please?

excellent video.

Hello Sir, i just wanted to ask you how did you calculate the tube circle diameter ( D) (44:40)

Thank you for your great lecture. I hope this continues. from korea

Can we get help in design experemtal effective SMR catalyst cahmber?

Can you share some reference books???

Thank you so much for sharing your knowledge You are great Is there next sessions? Like convection?

Fabrication and erection procedure of fired heaters in refinery

How much manpower us required for fabrication of fired gas heaters at shop and manpowers for erection at site

How about doing cost estimation for design supply and erection of fired heaters sir

Highly be grateful to you Sir

Hi, I work at Santura Engineering in Mumbai and we have been manufacturing and exporting Metallic Anchors since 20 years. Can you plz give us insights on anchors relating to problems that might be faced during installation or with quality of anchors. We’d like to improve our quality.

@19:50, approach equilibrium, can I understand the exit gas temperature is the actual outlet temp?

How can we control the increasing CPR and coking rate We operating induced draft furnace for ethane and propane cracking??

One carbon can actually compress four hydrogen into methane which are very economical, and requires very little energy because they are usually, biologically and/or naturally formed on Earth.

I am very thankful for all your efforts. I have benefited a lot, may God bless you.

Do you made video for Ethane Cracker furnace ?? . Plz reply me

Gas Turbine exhaust mass flow has temperature above 400 deg C, can it be used instead of firing fuel ? Kindly advise

Dear Sir, do you advise Exhaust heat flow from Gas turbine can be use to get temperature

very informative for me

Why Quench oil is not used to quench the crack gas in the Ethane & Propane Recycle Furnace??

Thank you for the videos it was crystal clear for me and gave me brilliant insight at a summary level

Awaiting for session 4

Great work,please also share session 3 part 3.....

It's urgent

Respected sir... I have need complete knowledge of furnace installation in fertilizer plants with complete details drawing

What about structural design and any consideration

Sir could you please upload session 4 on radiant design part-2.

How does orientation of tubes decided? Vertical vs horizontal tubes.

Great....

Thank you so much for the insight. If you have a fuel gas fired heater (an auxiliary heater) where the intention is not to heat up another fluid but to generate a hot flue gas which is needed to increase the temperature of the stack, what are the most efficient measures one needs to apply to maximize the flue gas temperature (leaving the heater) while not excessively increasing emissions? The only means I can think of now is increasing the fuel gas and air supply, but this will also lead to increase in emissions. Thank you

How to get the lobo paper?

Wonderful Session

Dear Ashutosh, could you please confirm the aprox tube production capacity of 4500 scfh/tube?

Hamara ethylene cracking furnace he 800 c pe heat hota he

Hamra furnace 1998 ka model he pqe me cock nikal na bohat hard he

Vertical Thermal oil heaters

Great Work! Keep it up!!

It’s one of those amazing engineering videos which helped me sharpen my knowledge of Heaters, its design and erection all in a single run. Thanks a lot, Furnace Improvements for posting this video. I shall anxiously await further videos on the subject!