Car

Hydrogen Engine – Technology of the Future

Contrary to the popular belief that a hydrogen engine is something new in the energy sector and is able to force oil out of the market, it’s not true.

The car manufacturers started to use hydrogen as fuel back in the 60s of the XX century, but they ended up producing prototypes only. Indeed, the use of hydrogen has always been unprofitable because in order to extract hydrogen from the air it is necessary to use a lot of electricity. As a result, a liter of hydrogen is 2 times more expensive than a liter of gasoline, and the car itself costs hundreds of thousands of dollars. That’s why a lot of people would rather tend to purchase bmw 5 whichconsumes gas.

Hydrogen cars have nothing to do with the technology of the future such as thermonuclear synthesis, they are only a variation of an electro mobile.

The principle of hydrogen engine operation is relatively simple. There are fuel cells which are installed between the cylinder with hydrogen and the engine. Inside these fuel cells there is a membrane, an anode and a cathode. The hydrogen is fed to the anode, and oxygen to the cathode (from the air), and by means of the catalyst integrated into the membrane, hydrogen is divided into protons and electrons. In the process of partition, there is a difference in potentials – electricity. On the cathode side, hydrogen protons are oxidized by oxygen and water vapor is obtained, which is the only car exhaust.

A balloon for hydrogen can withstand even a bullet hit of 12.7-mm diameter and if an accident happens, there isn’t any explosion.

The Japanese manufacturers, who have recently launched the production of cars with a hydrogen engine, the Toyota Mirai model, managed to reduce the cost to $50 thousand. But it’s still too expensive to talk about the beginning of the hydrogen era. The ecological value of such vehicles is also questionable: when producing hydrogen, there are as many harmful emissions as in the combustion of oil fuels are emitted, so this model is not yet easy to describe as a promising project.

There are two tanks for storing hydrogen under a pressure of 70 MPaunder the hood of the car. The maximum distance of a trip at one gas station is 650 kilometers, and the maximum speed of a car reaches 175 km / h. Time of full refueling of two cylinders is only 3 minutes. The cylinders are made of composite materials and are protected from damage during an accident.

Demand for hydrogen cars exceeded expectations

A month later, after the presentation of a hydrogen car, Toyota received 1,500 orders for this model, which is 2.5 times higher than expected. Interestingly, the other day the Japanese giant announced that it would promote the development of the industry of such cars.

If you think that it’s too early to invest in new technologies, you can check Toyota Camry or Nissan Rogue prices on the Internet and buy a traditional car.

Use of car odograph For Your Needs

The first thing we associate with an odometer is the odometer of our vehicle and therefore we think that it is a device invented in the 20th century. However, the odometer or topometer is so old that, for some researchers, its origins go back to times before the Christian era. To know how to choose Car odograph, this article will help you out.

Vehicle odometer

In fact, the vehicles (from motorcycles to trucks and large buses) have two instruments in a single sphere: the speedometer and the odometer, which work together.To understand how this set works, let’s see the schematic representation of speedometer + odometer that shows the following figure. morans

Cutting of an Odometer

The vehicle’s gearbox transmits the movement of the vehicle to the speedometer by means of a flexible cable attached to the rear of the instrument panel. Said movement rotates the permanent magnet “I” which is inside the drum “T”, to which the needle “A” is attached, which moves along the graduated scale of the speedometer dial, while the spring “M” “Opposes the movement of the drum” T “. It is clear that the higher the speed of the vehicle, the faster the magnet will turn, the greater the drag of the drum produced by the magnetic field of the magnet, and therefore the greater the displacement of the needle.

As this mechanism only measures the speed, the drum drive system is used to arrange a series of gears that receive the movement transmitted by the flexible cable or speedometer casing through an auger and relay it to another drum. This drum, in turn, moves graded wheels interconnected, marking, successively, the distance traveled every 100 meters, one kilometer, tens, hundreds and thousands of kilometers, as shown in the following figure.

Manual odometer

These odometers, also known as measuring wheels, do not differ much from the home example that we mentioned at the beginning, except that they use gears. The most common have a single wheel, but there are also two wheels. Some work with the mechanical principle, such as the vehicle odometer. Others are electronic and have a wide reading screen. Its function in surveying, geology, topography and even agriculture is complemented by tape measures and distance meters, tachymeter, pedometers (or step meters), telemeters (measure inclined distances) and even more sophisticated devices such as levels, theodolites and stations.

Types of manual Odometers

The advantage of manual odometers is that they are economic, lightweight, easy to use and transport (they are generally foldable), they can count forward and backward distances in ranges from 0 to 9,999.99 meters, they work perfectly to measure curved and they can even measure areas with some precision.

To use manual odographin measuring a distance between two points, we simply have to fix the wheel on the starting point, press the start button and walk to the end point. The distance traveled will appear directly on the bookmark or on the electronic screen.

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