Electricity can be said to be the greatest discovery in human history. It constitutes the foundation of all our modern life. Now the earth, even the instantaneous world power outage, its consequences are unimaginable. Therefore, with the increasing number of appliances Many places have been invented, and human demand for electricity is growing.
For this reason, humans have tried almost any method to generate electricity for power generation. Material burning, water energy, wind energy, solar energy and even nuclear energy, the total installed capacity has repeatedly exceeded the limit, and the annual power generation is also climbing. But even so There are still about 20% of the world's population without electricity available.
As a result, more and more people are exploring new ways to generate electricity, and to achieve the full use of all kinds of energy to generate electricity. For example, today we are going to discuss the topic: Human body power generation.
It will not only make you healthy, but also let you power
People move every day, no matter walking, working, exercising, as long as they move, there will be a slight power generation. The energy produced by one person is negligible, but the energy generated by the 7 billion people on the earth, even if they just walk, will It is a considerable amount of electricity. So, someone really came up with a way to use people to walk to generate electricity.
At present, a considerable part of the street lights on both sides of the road are powered by solar energy, but the lumbar intervertebral discs in the Boulder Square in Las Vegas are particularly prominent.
A company called engoplanet developed a clean energy streetlight that is connected to a pedal with three mini-generators. Every time someone walks on the pedal, it generates about 5 watts of electricity, and then It was delivered to the battery.
Las Vegas is not the primary location for this technology. In the past, the UK had already put this pedal into the supermarket. Imagine if the technology is very mature, the power for humans should be What a big contribution.
People can generate electricity when they walk lightly, so if they are placed in the field of sports competitions?
For example, the World Cup that has been opened, each piece of turf is loaded; the floor of all NBA stadiums is replaced with a power-generating floor. Not only can athletes run to generate electricity, but basketball can also generate electricity on the ground. Another example is the 100-meter sprint, everyone The focus of the track is to put a light bulb, the faster you run, the more the instantaneous power generation, the brighter the light bulb.
Therefore, naturally, some people have proposed to use sports to generate electricity. A gym in the United States uses the energy generated by people's fitness to provide all the power needed to illuminate the venue.
It is said that this kind of fitness generator can produce more than 300 kilowatts of electricity in one month if 20 people use it for 4 hours a day.
Moreover, while you are exercising, you can still see that the amount of electricity created by your fitness is growing little by little. Does the fitness fight become more and more vigorous? Environmentalists will love this invention very much.
Among the two ways of using human motion to generate electricity, fitness power generation is the most discussed. Because fitness is a content that releases the most energy and has a large group, and it is necessary to collect these energy. Not a big problem. However, it has not been widely used in reality.
The main reason for this should be the ratio of cost to return. According to 20 people generating 300 kilowatts of electricity a month, each machine will generate 15 kilowatts of electricity per month, if the electricity cost per kilowatt is 5 cents, one The monthly electricity is 7.5 yuan...and the actual enterprise is selling cheaper.
Then, when the enterprise really wants to go bankrupt, it will not be able to return.
Even if it is very environmentally friendly, it is profitable for the company. Therefore, it is used solely for power generation, unless the cost is low. But now more is provided to the B-end customer. For cost savings.
Since the value of external motor power generation is very limited, do you want to try blood?
A person with a fever may not do anything else, but the power generation line
Compared to running, walking and other visible power to generate electricity, using the internal organization of the human body to generate electricity is much more high-tech. Some people may not want to understand: the human body is tight and airy No, where is the power generation?
Scientists have a solution. Let's briefly introduce a few.
Blood power generation. Russia has a crazy artist Dmitry made a power generation device to provide the power needed for his concert. What is the power generation device driven by it? It is blood.
Dmitri took a total of 4.5 liters of blood from his body to keep the device running. But is this the blood power we want to say? Of course not.
There are two main ways of generating blood from the current bloodstream. One is to use the blood's own flow to generate electricity. Fudan University implants a fiber with a diameter of 0.8 mm into the blood vessels of the human body, and then extracts energy from the flowing blood.
It inserts the fiber into the nanotube and then connects a copper wire at both ends of the nanotube. It can generate electricity as the blood flows.
Unlike blood flow, Japanese scientists have adopted biochemical methods. They have developed a fuel cell that uses sugar in the blood to generate electricity. The battery is coated with an enzyme that decomposes glucose in the blood. Glucose is produced after it is broken down. Electron, which produces electricity.
The advantages of this type of battery are obvious, as long as people are alive, it always has electricity.
Muscle motor power generation. The maximum energy that the human body can produce comes from the muscles, so muscle power has naturally become the focus of attention. Scientists at the Karlsruhe Institute of Technology in Germany have developed two ways to use muscle to generate electricity.
One is to bind a generator to the lower limbs, which can generate electricity by using the inductance of the moving magnet and the coil. By sensing the change of the human body weight, the magnet constantly moves and then generates electricity.
Another way is to install a liquid cushion inside the shoe, which will continuously flow through the walking liquid, thereby forming a hydraulic pump in the hose. In repeated movements, electricity is generated.
Body heat power. There is a Zebeck effect in physics. Specifically, when two different metals are connected to form a closed loop, if the temperature of the two joints is different, a small voltage can be generated. The larger the temperature difference, The voltage generated is also larger.
People are warm-blooded animals. Under normal conditions, there will be a temperature difference between the human body and the air. Then, this temperature difference provides conditions for the generation of current. If a micro-generator is attached to the surface of the skin, the circuit will There will be current.
A body temperature flashlight called Lumen has been invented. The human body can generate 15 mA of current by touching Lumen, and this is enough to charge the LED bulb.
From this we can imagine that the human body generates more electricity in winter than in summer. The power generation on the mountain top is more than the foot of the mountain. People with fever have more power than normal people. If people have a fever, they don’t have to be sad. Maybe someone else’s mobile phone is dead. You can also give your phone more power because of a fever...
In addition, there are tear power generation, sweat power generation, urine power generation, hair power generation, eardrum power generation, etc. It can be said that in order to generate electricity, human beings have been touched all over the body.
But some people may ask: The power generated by these power generation methods may not be as much as a treadmill. Do they really need to be developed with great effort?
I have to give a positive answer: Yes.
What bike do you want? I want to do my own mobile power
The first problem that can be solved by using human power generation is the charging problem of implanted devices in the body.
At present, a microelectronic system for detecting human health is implanted in the human body, which can detect and report human physiology and case level all the time, and then issue corresponding instructions to provide early warning for people's diseases.
Then, the sublimation battery that uses blood to generate electricity can be said to perfectly solve the problem of electricity consumption of the electronic system.
Moreover, in the power supply of cardiac pacemakers, insulin pumps, and various implantable chips, it will also provide tremendous help. At least no need to open the knife.
Most importantly, these implanted devices are small in size and do not require much power to maintain operation. It is better to use the body's own power support.
Another possibility for human body power generation is to turn people into a living mobile charging treasure. Although a device generates very little power, if humans can overcome various difficulties, put various kinds without damaging their health. Power generation means are implanted into the human body, and it will certainly get a considerable sum of electricity.
These powers may solve the charging problem of your mobile phone, watch, e-cigarette, etc. From then on, the mobile charging treasure will be placed in the historical display case.
But both of these faces a common problem: Power transmission. How can we transfer electricity from the blood to a pacemaker or insulin pump? Does the current affect human health during this process?
For the second problem, if you want to transfer the body's power to the outside of the body, you can't insert a wire into the person to export it. It's a bit strange to look at it. Then, the wireless charging technology must implement one. It’s a big development.
It seems that human power generation seems to be a distant thing, but it really happened in this magical world. After being proved that these methods can indeed collect current and store it, we can say that we can Do it.
Just as human beings are moving from shackles to adults, human body power generation technology is just in the midst of shackles. Although the future is unknowable, it is always eternal enthusiasm for people to always trust technology.
After all, the current charging treasure is too heavy.
