DUAL FUEL - MEGI - ETHANE FUEL - GAS ENGINES: Basic System on a Ethane Ship - Part 1
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- เผยแพร่เมื่อ 30 มิ.ย. 2022
- MEGI - INTRODUCTION to the basis dual fuel system. Ive tried to cover a simple set up from the cargo tanks which are also the fuel tanks right to the MAIN ENGINE where this gas fuel is injected. You need to have a basic engineering knowledge to get to know this system.. I will certainly get down to what other systems are involved in operating and maintaining the system in some time.. This is just the first part, in the next video I will show u actual components and the engine actually operating on GAS mode,
Thank you Chief for your high quality content videos which are very good explained.
ur welcome.. please do like and share
The biggest joke is, I became a Chief Engineer on the LNG Vessels, directly having zero experience and merely by watching your videos.
Of course I learn things from young chief engineers like you guys.
God Bless you buddy.
Love you from India.
Love you too Sir, thanks for ur dedication to this stream and i sincerely appreciate your comment.
yea and the engine on that vessel is already down)))
Very interesting, thank you Chief🙏🙏
Very welcome... DO LIKE N SHARE.. MORE DETAILS COMING SOON
Fantastic Ce , keep up yr noble contribution in Maritime Industries,,looking forward for more 😊Tqvm-
thank you Sir, appreciate your kind words.
Thank you so much for such a wonderful explaination Chief..
Thanks Karan, Do like share and subscribe.. please do watch the other videos for further info
Great video sir with clear explanation .🙏💪
Glad you liked it... do drop in queries as comments.,., and also pls share..
Thank you for the familiarization. Great video sir.....😊😊. Looking forward for many more to come.
thanks denzil.. do Like and share too
Thank you very much sir for such a great effort in sharing knowledge in a very understandable way.
Waiting for many more .
Keep watching & DO LIKE AND SHARE PLEASE.. SOME MROE VIDEOS COMING SOON
"I hope you understood , if you did I'm happy"
Yes buddy, I learn every day from your videos.
Senior Chief Engineer from India.
Thanks you sir, much appreciated comment,.
Very well explained thanks chief
thank you, much appreciated comment...please do like, share & subscribe.. btw i use instagram too #the deepseaman
Thanks for the basic idea 💡 dat was really helpful
Glad it was helpful!.. do watch the latest one n stay tuned regularly for more.. please do like share and subscribe
great explanation useful videos sir
Keep watching...thank u.. do like share & subscribe ... more content comin up.. need to find time to edit
Nicely explained
Thank you so much 🙂 IMRAN,,, DO LIKE N SHARE.. MORE DETAILS COMING SOON
Appreciate your aspireng vids chief
thank you, comments like these inspire me to do more.. do like, share/subscribe
Very nicely explained ! Thanks chief
Glad it helped,..
My pleasure! hope u liked the video.. and learnt something new too do like and share please.
watch the Part 2 & 3 too
@@Thedeepseaman Already watched
@@Thedeepseaman is it Seri Everest?
Cool hair style sir loved it 🔥😉
Thanks 😁.. chek my intragram,, about early may.. see my hair there..
Dear sir have some medication so that you can easily reduce your body temperature literally reduces heat boil on your forehead 😌
Good one thanks.
You're welcome!, please do like, share & subscribe
Thank you so much chief
Thank you too for watching and happy that u liked the video..Do like and share.. this will certainly keep my morale and spirits high..
explanation very helpful thx Sir.
Thanks, glad you liked it.. DO watch my other videos too.. Also please like, share & subscribe
nice video
Thank u
I am glad that I found this video. Thank you very much! Very useful! Subscribed. Respect from Russia.
Spaceba… do like and follow me on Instagram too.. same id #thedeepseaman
Another one will be released today as soon as it uploads
Do watch n share
Love you so much dear sir 😙
Thank you brother..
Nice
Thanks Franklyn... appreciate your comment.
thnk u.
ur welcome... do like, share/subscribe
Do we need separate Pilot fuel injectors on Main engines. and what about generator at what pressure Gas enters in generators.
Yes, the we do need pilot fuel injectors as Auto ignition temperature for GAs is very high, like your car engines using gas have spark plugs.... Incase of MEGI engines here, the pilot fuel injectors are as good any main fuel injectors (on normal ME Engines) for fuel to as these engines have a seamless switch to full fuel mode if the gas trip occurs without affecting engine power and performance. The only difference is the fuel quantity injected by the main fuel injectors when in gas mode.. (Gas Index: about 90 % while pilot fuel about10 %)
Generator engines till operate on the standard diesel engine cycle and are note dual fuel here.
Is it like normal bunkering procedure as we follow for HO
here we are consuming the cargo itself, there are deepwell pumps that deliver this liquid cargo to the vaporiser .. pls see the video again. thanks for the question,
Chief, so in normal sailing your using the fuel from the cargo tanks? Not regular diesel?
we have to use both... Diesel acts as your spark plug like in petrol engines, this is called as pilot fuel... Gas fuel is max 90-92% 8-10% is pilot fuel (diesel or VLSFO)... my engine consumes 35 tons ethane per day and 8 tons pilot fuel..
@@Thedeepseaman thanks Chief, looking forward to more videos.
Thank you Chief for sharing your knowledge.
what i fail to understand is why the PVU is placed before the vaporizer and why do they even need a PVU? And a reciprocating pump for liquid? Wouldn't it make sense if they had the reciprocating compressor placed after the vaporizer?🤔
they have tried that earlier on initial gen engines but it was a failure as the compressors required are 8 stage reciprocating type and had several operational issues and failure.. for the reciprocating/hydraulic driven PVU, this is MAN ES own concept and has proved much more effective than then previous gen compressors . the effective work done is lesser comparing the losses and spares involved. the size of the vaporizer is really very small and thus quantity of heating medium also required is lesser, so all in all its a great design improvement by MAN ES to have their own PVU. another key factor is the space requirement is lesser for the PVU unit over the compressors.. each engine has 3 PVU pumps, engine can operate comfortably even with 2..
Chief why can't we directly heat with steam instead of glycol ?
good question, glycol freezing point very low, glycol enters the vaporizer at 48.. the ethane enters at -80, this will freeze the steam if steam is used instead of glycol..
Sir we can use steam as heating
medium right then we want glycol to heat up then again use glycol as heating medium to fuel.
Why we want seperate glycol system
to avoid contamination in case of any leaks.
Hello Sir, How is that before and after Vaporizer, the pressure is same (~380 bar), even after adding heat?
pressure control valve and thus its the same, if the pressure goes higher, the stroke rate of the PVU pumps is reduced, flow is continuous on the engine side as this is consumed as fuel... if system trips, this will be vented out at the mast riser
@@2609488 there is no compression , just increase in temp, volume is allowed to expand as the other side fuel is being continuously consumed
Hi sir. Is is possible to explain the same service system structure in terms of methanol and lpg fuels if you are aware. Almost the concept remains same except few things like its just 10 bar supply pressure for methanol and 50 bars for lpg, FVT,s gas blocks and double walled pipings in common. Thanks..
HI Karthick, sorry i've not sailed with the Methanol and LPG, i have certainly read about those, but without first hand experience i would not share info as my info will not be accurate..
Sir, when and why are we using pilot fuel and when we use gas ?
pilot fuel is like ur spark plug in petrol engines, this is just diesel/fuel oil injected in minimum quantity to ignite the gas.... gas has a very high auto ignition temp and hence can't be ignited by the heat generated by just compressing air in the cylinder.. (diesel/fuel oil will ignite with just this)... when ever gas (dual fual) has to be burned in the engine, you need a pilot (spark) to ignite the gas .... look at your common LPG/CNG engines on cars/auto-mobiles.. they run on gas but have a spark plug..
hope u understood this concept.. do like, share and subscribe
380 bar is heavy , may be may not be uneasy to use, explain the new gas burning at about 7 /6 bar , heard injected from scavenge ports, possible if you can simplyfy
380 bar is the standard for ETHANE, MEGI- Concept... MEGI for LNG is a little lower at 300... this is the only way proven ethane can be used in the engine. this is based on the 2 stroke diesel cycle & hence pre-mix fuel is not injected here.
the other injection in the scav manifold, you are talking about is the other concept... the 4 stroke cycle...
advantage of the MEGI concept is the methane/gas slip is almost negligible compared to this principle of operation.
I have only read about this concept and hence cant give first hand explanation where as on the other hand, the megi-conept i am very familiar as i have been working on these engines for over a year now.
thanks for your comment, I sincerely appreciate it. Please do Share & subscribe if you like my videos.
I try to make more but time constraints on board.. I have good material, but compiling them is a time consumer.. thanks
........how the MOP panel has been significantly modified... probably all the tabs are not just shown by the author in this video?
yes, its certainly changing, i havent see the first gen of the MOPs myself so cant tell, but have seen various updates over the years.
@@Thedeepseaman Thanks , will be glad to discuss more . Pls provide some contacts if possible . Brgds
@@igortabulynsky2253 you can msg me on Instagram, I’m more frequent there.. #thedeepseaman
@@igortabulynsky2253 Do forget to like, share and subscribe
Can't you at least use a couple cuss words? How else would we know you're actually a ships engineer? Mfr
Good one brother.., but not professionally when sharing educational content, meet me at a bar with a pen and paper, we can have a whole new language...
Can you share your Instagram in the description so that we can follow you there 🤝
the same one kunal.. #thedeepseaman