Ooh. I know this one. Parts of NYC still use a steam heating system that was first designed in the late 1800’s:
Thank you. There’s so many people responding with unhelpful answers.
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Wtf? Bad form, Peter Pan.
I’ve never been called a boomer before, I’m far from it. Let me exchange a free idea and information; you’re a fucking moron.
Sorry to have hurt your millennial feelings.
No feeling hurt here. Quite the opposite. Again, allow me express my “free exchange of information and ideas” and my somewhat amused feelings; You’re a fucking moron!
Don’t feed the troll, ignore and move on.
And you, sir, are an accomplished wordsmith! I mean, “fucking moron” twice? Brilliant! Thank you for you contributions!
You should tell this guy.
Imagine having two keyboards just to put your hands in each of them and, like play 4 keys from each… without moving your arms at all…
Wow that’s neat
No, that’s heat.
Yeet the heat or beat the meat
Yeet the meat not the heat.
It’s from the streamed clams they’re having.
It’s not steam. It’s smoke from wood fired pizza ovens for the turtle men that live there. There was a cartoon documentary about them on tv a few years back.
I never thought of them eating artisan pizzas. I always figured they’d get some shitty dominos.
Ew, gross. They live in a sewer, but they’re not animals.
They’re teenagers, taste doesn’t factor in much after cost and availability.
Have you never seen the movie? The only pizza they ate was from Domino’s.
And in every other piece of media, it isn’t?
They wouldn’t do dominos they’d probably get a variation of Rays famous near them
90s dominos also isn’t today’s dominos.
90s Dominos was trash. Even Dominos recognized old Dominos was trash.
Truth. Whatever they did 10-15 years ago made it tolerable. Not great, but tolerable.
I delivered for two locations shortly after they fixed the pizza. In both locations, shift leads and managers came up with so many excuses for house pizza. More than any other chain I worked for. I didn’t connect the dots until later. The pizza must have been much worse before.
I actually liked the crust after the change. It’s not great, but it was better than most other chains.
Product placement in a movie doesn’t count
They seem to have the only people willing to deliver to a drainage hole.
You know how when rockets take off in Florida there’s lots of smoke?
Yeah there’s a tunnel that goes from Florida to New York that the smoke goes through to help heat up the New York streets. So anytime you see smoke in New York it’s cause a rocket was recently shot up in Florida.
TechnologyInfrastructure is incredible!There’s a lot of things under the streets of New York, many of them cause heat. In order to cool them off the heat is vented outside and the warm moist air meets with the cool dry air and condensates into droplets that we see as steam. Same affect as breathing out on a cold day, you’re not creating steam but it looks that way because the warm moist air from your breath is condensing in the cool dry air.
Could you name one thing that would cause heat under streets? It’s kinda hard to believe tbh
Pipes transferring steam.
Subway brakes.
Ehhhhhhhh
When you take a hot shower where do you think that water is going?
Wouldn’t it cool off in the sewer, though?
Yes but hot water continues to flow in.
And it doesn’t need to stay very hot. It just needs to be warmer than the outside air temperature in order for vapor to form.
The ground and continuous hot water input keeps everything insulated.
But cold water is also continuously flowing in. And as someone said, it perhaps cools down quickly. Is that all and all enough for such a dense vapor cloud to appear as in pic?
More hot water than cold water is flowing in. It’s a simple thermodynamics problem
How so, or do you just wanna sound smart
If it is colder above ground, than the ambient temperature of the ground, IIRC that’s somewhere in the 50° F range, and less humid than the sewers, sure.
Yeah okay maybe. In the winter for sure
A new rat pope was elected.
I love how plausible this is
Praise Cheesus
Thank you, much a-brie-ciated.
New sewer pope
yo mama’s farts
There’s a really good explanation here:
Believe it or not. Very old infrastructure in the city. Still runs on steam power.
I swear I thought this answer was about as accurate as the one that said “dragons”.
How steampunk for probably the largest city in the world to use steam in this day and age? I love it…
I’m going to have to interject, NYC is the 11th [or 35th] largest city.
11th, OR 35th? Could you explain?
It depends on how you define the city, here’s my source: https://en.wikipedia.org/wiki/List_of_largest_cities
I don’t know why they include the surrounding areas as part of the city population. The 5 boroughs is roughly 8 million people. If you live in jersey city, you shouldn’t be counted as part of nyc population
I don’t know why they care about population https://en.m.wikipedia.org/wiki/List_of_largest_cities_by_area clearly land is more important because land votes not people.
That list is from 2018
NYC didn’t grow any more populous since.
https://www.nytimes.com/2024/03/14/nyregion/nyc-population-decline.html
Doesn’t mean other cities haven’t grown. Especially Chinese tech haven and trade hub cities are blowing up. If New York didn’t grow, it probably dropped several spots.
Or 3rd or 76th.
Some big cities originally heated their buildings by producing steam in one one centralized building and delivering it to large buildings thru pipes underground. The steam you see is from leaking pipes in this antiquated infrastructure. It’s a very inefficient method if you ask me. Cities should offer these buildings low interest loans so they can update and be independent but they never take my advice
Afaik it’s not inefficient if the heating is done via fossil fuels as big furnaces (especially in the past, especially turbo-fan super-fine grind coal ones) are much more efficient than smol ones for individual buildings (even if the buildings are giant).
It’s terribly inefficient. The efficiency is lost when the steam that condenses back into hot water is lost and none of it is returned to the boiler to be reheated. Rather than reheating this returning water which normally is at 120-160 degrees Fahrenheit, fresh water is used which in the winter here is around 56 degrees. Aside from this the cold water taken in contains impurities such as dissolved gasses which cause corrosion and dissolved minerals which can cause scaling that acts as an insulator raising the amount of energy needed to heat the water.
Oh, I didn’t know it was a one-way system in NY.
A weird decision, but I guess it lowered the initial cost a bit?I can’t speak for NY but that is the situation in Cleveland. I have a customer downtown on city steam. I watch hot water discharge to a drain at the rate of about 3 gallons a minute and there’s 1440 minutes in a day. When it was built I’m sure they reclaimed most of it (80% return is considered good) but over time the pipe corrodes and you have leaks.
The difficulty was drainage. Isolated steam systems in steam era construction were designed to use gravity for condensate collection. It’s one of the reasons boilers are always in the basement of old buildings.
Steam system engineering was a well-compensated profession. A well-designed system would accurately predict the rate of condensate flow for every part of the building, prior to construction, and reflect these predictions in the slope/grade and diameter of the steam pipes. Inaccurate predictions resulted in problems like pipe knock (aka steam hammer) which you can often hear when you or a nearby neighbor partially close the shut-off valve of a radiator.
Since construction in the city had many elevations and could not be predicted in advance, there was no equivalent solution to facilitate condensate collection. The system had to be one way. And yes, it’s inefficient compared to modern systems, but was innovative in its day.
District level heating is actually pretty efficient, some universities do the same thing on purpose to save on bills. Our relatively young city does it with the downtown skyscrapers for the same reason.
The other nice thing is that when you upgrade the heating system to be less carbon intensive, you can instantly have a ton of buildings all jump instantly to fewer emissions too.
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Why not just have the city mandate the upgrades and then implement them? It’s probably not that big of a problem for everyone involved.
If it were that simple everyone would have done it by now. This method of heating your building is very expensive. Long story short, I’m in the HVAC business and two of my customers have made themselves independent. One was a private property management company that gutted an empty building and was successful, the other is a federal building that hired a private company to convert over and got screwed.
I made the same suggestion you did, all I changed was that the city pay for and implement the changes instead of handing out money to random people in the form of loans that may or may not get anything done.
Hot. Moist. Air.
it’s steam not air
No it is Moist. Air.
You can’t see steam. It’s not visible to the naked eye.
Hundred plus year old infrastructure.
Volcano under the city
That isn’t steam, it’s smoke. Smoke from the smoked hams we’re having. Mmmm, smoked hams.
Surely you mean smoked clams?
I thought that was from the streets of Albany?
no, there it was the other way round, pay attention
Ah, so it was the streets of Utica.
