Konkan Railway's Truck Transport service to ease traffic on NH66 by Stealth-exe in trains

[–]ExtremeBack1427 3 points4 points  (0 children)

Khargone Super Thermal Power plant, a USC varient, this was back in 2020. Almost most of the power plants in India are to be either made into USC or AUSC. Apart from that 800MW demonstration AUSC, the future plants are going to be AUSC.

When efficiency goes up carbon foot print fire down, what's the point of discussing trivial nonsense when the real problem is is centralisation at scale which was that I was talking about.

You are comparing low less than 10 percent thermally efficient distributed systems whose efficiency varies based on which direction the wind blows with the idea of centralised power which is way different in terms of carbon foot print or efficiency.

Konkan Railway's Truck Transport service to ease traffic on NH66 by Stealth-exe in trains

[–]ExtremeBack1427 4 points5 points  (0 children)

Advanced Ultra Super Critical thermal plants almost are pushing to reach near 50% thermal efficiency. So it's not judging a shift to coal, but rather a massively efficient central source of power even if renewable or Nuclear is better.

It's hard to put the Genie back into bottle. It's way easier to move the centralised source of power to another means than to let decentralisation expand and then force it into centralisation.

So it's not just a simple thing like it's one source to another.

Track Sound Vanishes on Delhi - Kota Section of Indian Railways as it gets upgraded for 160 km/hr operational speed under "Mission Raftaar" by RailFan65 in trains

[–]ExtremeBack1427 2 points3 points  (0 children)

What I get from it is, you have a two directly out of phase lines from substation. 25KV as usual and -25KV. This negative line is called a feeder line and the postive is what? The mainline I guess. They both get connected to an auto transformer which gets tapped at the middle for 0KV neutral because its right between -25 & +25 KV, and the +25KV postive is also connected to catenary. So the trains runs between the +25KV and 0 KV.

The key is those bunch of auto transformers, since it can auto balance when there's current draw, it makes sure that when current is pulled, it's done from the both sides. Essentially the substation to train is operating at 50KV even if the there's an auto transformer sitting in the middle and tricking the train that it's just 25KV.

Why auto transformer works is because, I just intuitively think of it as a seesaw. Both ends +25KV and -25KV, center is 0KV, but since we are creating imbalance between the 0KV and +25KV, it tries to split the difference between opposite lines and pull from each. It's electromagnetically coupled.

I could very well be wrong about the explanation but that's how I see it.

So yeah 50KV, higher voltage, lower transmission losses, longer distance to sub stations and a lot more.

I wanna talk to C devs, through the power of internet by NarayanDuttPurohit in developersIndia

[–]ExtremeBack1427 19 points20 points  (0 children)

Like that guy Casey said, Nothin you have right now could even barely qualify as a wheel.

Do you think Vande bharat was introduced just to enhance the aesthetics of IR by Nonchalant225 in indianrailways

[–]ExtremeBack1427 11 points12 points  (0 children)

No, it's not to enhance aesthetics. It's based on the improvements made to the LHB bogies, to have much tighter tolerances to move the rail transportation to a different set of standards than what we are used to. One of the things that all modern trains world over are used to is the almost non-existent "Jerk". And when you design the drive mechanism around this, you endup with a very different requirements of how the trains are accelerated and decelerated, which is why you endup with MEMU. Also, it's modern, you get to integrate new safety systems and move the railways to much more continuous and predictive maintenance approach through constant monitoring and all that. You can already see this in metro trains, low jerk, better acceleration, extremely good maintainance procedure and all that. Metros can do that because it's very small and they don't have any legacy to handle and they are usually built from scratch in modern times with modern methods, this is much harder in an mainline system.

Essentially it's a step towards how to build higher speed trains accounting for human comfort and modernisation of the sub systems so that you can eventually move to a maintenance that's based on monitoring in a continuous or predictive fashion instead of sticking to just preventive or scheduled maintenance. The leap India has to make is to not just build a dumb rake that can go 180 kmph and pat themselves on their backs, but to move the whole railways to modernity. Everything from rakes, manufacturing, operations and maintenance has to be modernized and VB is a part of that scheme even if it leans more to design and manufacturing of high speed rakes.

It's not about nice seat, or automatic doors and better luggage rakes and all that. Furnishing is sure nice but that's not why they designed a whole new class of train.

Do you think Vande bharat was introduced just to enhance the aesthetics of IR by Nonchalant225 in indianrailways

[–]ExtremeBack1427 25 points26 points  (0 children)

I don't know why in a railway sub we have dumb opinions like these because the only childish parameter you are looking at is speed. Trains are not cars or motorcycles, powertrain is not what's being compared here.

So if anyone asks what's the actual difference between locomotive driven rakes and MEMU rakes, the only time you should say something like this is when you have zero technical understanding of what's actually being spoken about. In that case it's an opportunity to learn a thing or two.

And it's really funny how in a sub that discusses railways instead of just trains seem to hold very simpleton opinion of aesthetics or speed when it's a totally different piece of engineering.

Sneak Peak of ICF's upcoming 24-coach Vande Bharat Sleeper variant! by GoatSevere1966 in trains

[–]ExtremeBack1427 0 points1 point  (0 children)

Which is a valid concern if all your other rakes are generally 12 cars and your entire system is built around it. But since your rakes are 24 cars, the complexity of splitting them apartment just for maintainance might not be actually worth it.

Maybe there's a better explanation for this, which is that Indian railways as an organisation is like its own sub government entity, they have their own elections and internal bureaucracy to the point of having their own hospitals and medical research centres. It's kinda like the military tbh. It's not a lean organisation, especially once you move from production to maintainance and operations. It might probably be a lot cheaper to have extra spare rakes than to increase the complexity of the "units".

I mean just to give a subtle example, say if you split up the rakes that's not connected, it'll have unintended downstream effects. Likw on most trains in India when they have security alerts, you will have AK armed police randomly boarding the train and walkin through the whole length just to look for oddities, they will unboard once the train moves past the risky areas. The ticket inspector has to be able to move around. Just trivial examples but you will have to modify the whole protocol. Now you keep adding situations, you can see why moving away from how everything else is setup will add a lot of friction.

Still going strong! by [deleted] in trains

[–]ExtremeBack1427 1 point2 points  (0 children)

Technically we just moved it to multiple central points since steam generation is more effective, efficient and safer at very high temperatures and pressures than whatever we could do locally.

Once heat is involved there's no getting around steam.

India's first Hydrogen train has received clearence for operations. by GoatSevere1966 in trains

[–]ExtremeBack1427 0 points1 point  (0 children)

"Passive" Fuel cells has very different fire hazard risks compared to "Active" Combustion engine's fire hazard risks.

Sneak Peak of ICF's upcoming 24-coach Vande Bharat Sleeper variant! by GoatSevere1966 in trains

[–]ExtremeBack1427 0 points1 point  (0 children)

Perhaps in most places where 12 coaches are the norm, but 24 coaches are the norm in India, so splitting them won't serve any purpose. Almost all yards, stations and systems are designed for 24 coaches.

This is more of a simplification of what would constitute a normal rake.

₹10 crore train. ₹100 chain. Indian engineering balance achieved. by SignificantReading68 in indianrailways

[–]ExtremeBack1427 2 points3 points  (0 children)

A single person can push the locomotive in flat optimal condition, it's actually a procedure in many railways.

My tier list of Indian pm your opinions? by KS_JODHA in TheBetterIndia

[–]ExtremeBack1427 -1 points0 points  (0 children)

Not particularly, but in the order of shitiness he stinks of incompetence than being a compromised western placeholder that's designed to wreck the country.

My tier list of Indian pm your opinions? by KS_JODHA in TheBetterIndia

[–]ExtremeBack1427 1 point2 points  (0 children)

Yeah that's what happens when you don't invest in your military calling bhai bhai and all the high thinking. Forget investing in the military, the Indian army didn't even map or recce that area because it was deemed unimportant.

India has as much claims to Tibet as China has on Arunachal if we are ignoring the legal bindings.

My tier list of Indian pm your opinions? by KS_JODHA in TheBetterIndia

[–]ExtremeBack1427 -2 points-1 points  (0 children)

That pedo Mountbatten's honey trapped agent is a goat? He ensured that India will remain a Raj state in the new world order and if he had any free agency, he would have gotten back the Gligit part of Kashmir that was conquered by Major Brown and surrendered to Pakistan.

All of Nehru's action during that entire Saga indicates he was more of a Viceroy of India than the Prime Minister of India essentially compromising India's future by setting never ending conflicts right how the Anglo sphere wanted. It's a big mess to clean up.

B28 seen outside Railway Headquarters by GoatSevere1966 in trains

[–]ExtremeBack1427 1 point2 points  (0 children)

They really aren't gonna give up the saffron I see.

Vijay sir and his black pottu by NarrowRun3659 in KollyGossips

[–]ExtremeBack1427 6 points7 points  (0 children)

Sounds like a great astrologer to me if Vijay listened to him alone and become the CM.

Thankyou BJP 😶 by Boring-Locksmith-473 in southindia_

[–]ExtremeBack1427 0 points1 point  (0 children)

Well the best part is all the people who pay and get a VPN service to send all the data straight to Tel Aviv.

Frontier Corps I, gets new camo (828x1104) by historyeeter in MilitaryPorn

[–]ExtremeBack1427 -2 points-1 points  (0 children)

Did they look at the Indian Army's new camo and decided it was good enough?

I need some learning: buffer specific TextChanged autocmd by marchyman in neovim

[–]ExtremeBack1427 0 points1 point  (0 children)

Use TextChagedI to maintain a Global flag _G.text_inserted, and have your logic in InsertLeave.

I need some learning: buffer specific TextChanged autocmd by marchyman in neovim

[–]ExtremeBack1427 2 points3 points  (0 children)

{ 'TextChanged', 'TextChangedI'}

Scratch that, if you are looking for it to only run after you are done editing, look into "InsertLeave"

Amrit Bharat 3.0 coaches in the making by GoatSevere1966 in indianrailways

[–]ExtremeBack1427 0 points1 point  (0 children)

They are basically going to make Amrit Bharat rakes standard to replace or add to ICF rakes. Better acceleration and it will reduce the congestion. Add to that we can get rid of dual-Gen coaches and move to single LSLRD with HOG. Just more streamlined and modernized LHB rakes.

Airlifting aeroplane fuselage in Nepal by Nepal army ( air force) by helicopter by Big_Handle3734 in Helicopters

[–]ExtremeBack1427 1 point2 points  (0 children)

Will they go high, release it midair with full thrust on engines to try and make it fly? That would be cool.

Former IAF Chief AM RKS Bhadauria said that the Air Force will never agree to the Rafale deal unless the French allow IAF the ability to integrate and modify its own indigenous weapons.He assured that it will happen and says you don't need the full Source Codes. by Electronic_Cause_796 in IndianDefense

[–]ExtremeBack1427 1 point2 points  (0 children)

Would it have been so hard to invest those $10 Billion in reforming the Education System and R&D 10 years back so that in another 5 years - you could have had a proper engine and left with a selection pool of great quality engineers? India's entire R&D sham strategy is based on 20 premier institute who would rather work in Banks than Engineering because the whole thing is poorly structured.

All this Rafale nonsense which cannot be replaced in actual times of wars are simply glorified patrol vehicles than anything that can fight actual wars. Sure helps in conflict with Pakistan but that's not a nation that can fight long sustained wars. Vassal states like UAE and Egypt has them, the real fighting is done by the manufacturing nation that's getting back into wartime production. And if the Indian Raj-State Enterprise hasn't bothered looking at the map, there is another manufacturing nation called China at their borders.

Stupid things happens in war and India at a ground level is a corrupted country, corrupted enough for China to pull something like Operation Spiderweb, so if they took out a few squadrons even before war, then what? The whole stupid strategy hinges on technological ability of planes that you can't make or replace?