Even though the entire submarine has air cooling facility, only two decks are air-conditioned. The temperature in the rest of the submarine is around 30-35 degrees and the crew works in sweltering heat.
The showers on a submarine are set up much like the ones in your home, well kind of. They have hot and cold water access with a recirculation pump so that the water stays hot so that you can use it quickly and efficiently by minimising water usage. Reducing water usage is a constant major driver for submariners.
Of course the water underneath the surface is moving too. This means that submarines cross storms by doing what they do best – sailing completely submerged. The deal is that the deeper you go, the less you can feel the waves. It is because waves are basically a bunch of water molecules rolling over each other.
So, submarines must be electrically heated to maintain a comfortable temperature for the crew. The electrical power for the heaters comes from the nuclear reactor, diesel engine, or batteries (emergency).
Nuclear submarines and aircraft carriers are powered by onboard nuclear reactors. Atoms in the nuclear reactor split, which releases energy as heat.
You are probably wondering why I would call this post such thing... Since Submarines remain submerged with a sealed atmosphere they rely on a chemical called Amine to remove the carbon dioxide. This chemical makes everything stink.
In conventional submarines, the renewal of the air occurs with the use of the snorkel or when it is in the sea surface. The cooling machinery consists of two identical plants, one either side of the ship's center line, working in conjunction with the direct-expansion coolers in the diverse air conditioning units.
For a recent deployment the Jefferson City loaded up with 9,800 pounds of flour, 1,200 pounds of chicken, 1,000 pounds of prime rib, 1,000 pounds of ground beef, 800 pounds of potatoes and 100 dozen eggs. In all, the submarine will typically carry about 15,000 pounds of food, or about 110 pounds per sailor per patrol.
In the enclosed atmosphere of the submarine, these pollutants can build up and pose a health risk. Therefore, aerosol cans (such as hair spray, shave cream, spray deodorant) are not authorized to be brought on board.
Aboard fast-attack submarines, two bathrooms - each with four toilets and two urinals - serve 100 crew members. Crew chiefs and officers use another three baths.
No, it will be fine. Pressure inside the submarine is well controlled and essentially the same as regular atmospheric pressure.
2. The ocean could be affected by high tsunami and/or pressure waves in the case of a large asteroid or comet impact. Most current submarines can survive at a depth of 400 m, so they might survive long pressure spikes created by the waves above them as high as 200–400 m, but not kilometer size waves.
There is a small gym onboard for exercise and alcohol is permitted, in limited quantities, although most abstain.
A submarine "day" lasts 18 hours and is split into three six-hour shifts. So a submariner may work for six hours and train, maintain equipment or sleep for 12 hours.
Submariners may be bearded, clean-shaven, or "patrol-bearded", growing a beard for the time of a patrol in reminiscence of the time of the diesel submarines whose cramped space allowed for rustic and minimal personal care.
Being on a submarine is very different to being on a boat. There is no rocking motion, as the submarine sits below the waves, and so people who get seasick on a boat will not do so on our submarine.
It is perhaps surprising to think that there is actually space in a submarine for a smoking room. Indeed, it seems somewhat alarming that smoking is permitted given that there must be some (albeit small) increased fire risk.
Modern submarines can stay underwater without coming to the surface for several days. This means crew members can breathe the same air for an unusually long time. Dr Aleksandra Sebastian and co-workers from Lund University, Sweden, have studied how the quality of air on submarines changes over eight days of submersion.
There is also the etiquette of shower time -- three to five minutes being what these sailors constitute as being considerate of others since it is all about the "water run time" and the cycling out of dirty water for clean water these sailors must do.
James Lind is remembered as the man who helped to conquer a killer disease. His reported experiment on board a naval ship in 1747 showed that oranges and lemons were a cure for scurvy.
In the 1980s, some 30 U.S. Navy submarines were damaged by cookiecutter shark bites, mostly to the rubber-sheathed electric cable leading to the sounding probe used to ensure safety when surfacing in shipping zones.
Even if the submarine dives to 300 meters (I'm picking something at random), you'll feel mostly the same. It will be just like enjoying a cup of tea in a windowless room at sea level. This is because the interior of the vessel is kept at an approximate pressure of 1 atmosphere, which is what you feel at the surface.
To supply this power, submarines are equipped with diesel engines that burn fuel and/or nuclear reactors that use nuclear fission. Submarines also have batteries to supply electrical power.
Any time the submarine sends a signal, it identifies its position, and loses the secrecy that is at the core of the crew's mission. There is only one washer and dryer on board, so clean clothes are a luxury. But submarines are famous for their good food, always topped off with a desert or two, including ice cream.