Who invented the solar water heater?

Archimedes. Use the gathered solar energy to destroy the Roman fleet. Legend has it that 2,000 years ago, a kingdom in ancient Greece was invaded by the Romans, who attacked from the sea by boat, but the kingdom only had old people, children and women, how could these old and weak women and children resist the powerful Roman fleet?

At this time, the gray-haired old scientist Archimedes stepped forward. The women were called upon to rise up to defend their country, and told them to take up their dressing mirrors and come to the shore together. The scorching sun hung high, the strong sunlight shone on the earth, and Archimedes stood on a high place and shouted:

Everyone uses their own vanity mirrors to reflect the sun on the sails! After saying that, he raised the mirror, only to see a ray of light reflected on a sail's **, reflecting a faint small speck. A woman understood what he meant, and hurriedly raised the mirror in her hand, reflecting the light on the sail as well, and the small spots of light brightened a little.

Then there was a mirror, two mirrors, ......All shot at that point on the sail. After a while, the sails caught fire, and the enemy fell into the water in fright. Many of Rome's ships were burned, but the Romans could not find the cause of the fire.

More than 900 years later, a scientist made a concave mirror according to Archimedes' method introduced in the history books, successfully lit the wood 45 meters away from the mirror, and burned the aluminum 42 meters away from the mirror. Therefore, many historians of science and technology usually regard Archimedes as the ancestor of human use of solar energy.

The world's first solar water heater was developed by Kemp in Maryland, USA in 1891, and has a history of more than 100 years. Resources.

It's me, I see that the sun is exerting so much heat, it's a pity to waste it. That's why the solar water heater was invented.

The inventions related to the sun are solar energy, solar cooker, solar watch, solar computer, solar calculator, solar panel, solar rice stove, etc.

Solar power generation, solar energy storage, solar cars, plant photosynthesis requires solar energy, as well as solar watches, solar computers, solar calculators, etc. Plants need solar energy for photosynthesis, which is supplied by absorbing solar energy through electronic panels.

Solar energy is a renewable energy source. It refers to the thermal radiation energy of the sun, and the main manifestation is often referred to as the sun's rays. In modern times, it is generally used to generate electricity or provide energy for water heaters.

Solar Pros:

Universal: The sun shines on the earth, there is no geographical limit, whether it is land or sea, whether it is high mountains or islands, it can be directly exploited and utilized, easy to collect, and does not need to be mined and transported.

Harmless: The development and utilization of solar energy will not pollute the environment, it is one of the most clean energy, and it is extremely valuable in today's increasingly serious environmental pollution.

Enormous: The amount of solar radiation reaching the Earth's surface is equivalent to about 130 trillion tons of coal every year, which is the largest energy source that can be exploited in the world today.

The above content reference: Encyclopedia - solar energy.

A historical review of solar energy utilization.

It has been recorded that humans have been using solar energy for more than 3,000 years.

The use of solar energy as an energy source and power source has only been around for more than 300 years.

It is recent that solar energy has been truly regarded as a "supplementary energy source that is urgently needed in the near future" and "the foundation of the future energy structure".

Since the 70s of the 20th century, solar energy technology has advanced by leaps and bounds, and the use of solar energy is changing with each passing day.

The history of solar energy utilization in modern times can be counted from the invention of the world's first solar-powered engine by French engineer Solomon de Cox in 1615.

The invention is a machine that uses solar energy to heat air to expand and pump water.

Between 1615 and 1900, a number of solar power plants and other solar power installations were developed in the world.

These power units almost all use the concentrating method to collect sunlight, the engine power is not large, the working fluid is mainly water vapor, ** expensive, the practical value is not large, most of them are the personal research and manufacture of solar energy Shentong enthusiasts.

In the 100 years of the 20th century, the history of solar energy technology development can be roughly divided into seven stages

Solar heart rhythm regulators, solar paints, etc.

The application of solar heating in China has developed rapidly, and the energy-saving effect is obvious. Around 75% of the energy in a building's energy consumption structure is used for building heating and hot water**. The combination of solar energy utilization and building energy-saving technology can reduce energy consumption and reduce environmental pollution caused by energy consumption, which is an important way to save energy in buildings.

A heat pump system that uses solar energy as a heat source for an evaporator is called a solar heat pump system. The main research areas of solar heat pump application are solar heat pump floor radiant heating system in winter and hot water supply system of solar heat pump in non-heating season.

Technical principle. Solar energy is produced by the fusion of hydrogen and helium in the sun's interior to release huge amounts of nuclear energy, radiant energy from the sun. The vast majority of the energy required by humans comes directly or indirectly from the sun.

Plants release oxygen, absorb carbon dioxide, and convert solar energy into chemical energy through photosynthesis for storage in plants.

Fossil fuels such as coal, oil, and natural gas are also primary energy sources that evolved over a long geological period from plants and animals buried in the ground in ancient times. The energy contained in the earth itself usually refers to the energy related to the thermal energy in the earth's interior and the energy related to the nuclear reactions.

Solar heart rhythm regulator.

What should I do if my phone or tablet is out of battery? It's a big deal to charge it and turn it on, but if an electronic medical device implanted in the human body, such as a heart rhythm regulator, runs out of power, the consequences are much more serious. However, the latest research has invented a new technology to implant solar cells into the human body** to charge medical devices in the body, and the replacement of heart rhythm regulator batteries in the future does not have to be so troublesome.

The Swiss research team has developed a wearable arm-mounted solar measuring device with a square centimeter-sized solar cell that is small enough to be implanted in the body and also measures the power output generated by the solar cell. On the solar cell, a filter is placed to simulate the characteristics of ** and its effect on the light source. At any time of the year, even the lowest amount of electricity produced by the solar cells returned by the experimenter could produce an average of 12 microwatts, which is more than the 5 to 10 microwatts required for a typical heart rhythm regulator.

Solar paint.

Hydrogen is one of the cleanest sources of energy, producing only water and no other harmful by-products when burned. Researchers in Australia have invented solar paints that use renewable solar energy to convert water vapor from the air into hydrogen fuel. It is unique in two key components:

Molybdenum sulfide and titanium oxide. The former is responsible for absorbing water and catalyzing water splitting, while the latter is responsible for absorbing solar energy and providing the energy needed for water splitting. This solar paint has many advantages, such as the fact that there is no need to artificially add clean or distilled water, and the system itself absorbs moisture from the air.

The existing ones are mostly collector solar water heaters, solar cells, solar heaters (solar cookers), solar drying ovens, etc. Among them, solar water heaters and solar cells are the most utilized.

Solar rocking chairs, solar-charged parking lots, solar-powered heart rhythm regulators.

The availability of sunlight and the energy content have made solar energy a part of people's lives. In addition to the solar panels that people see in their daily lives, it may also be more developed than you realize in other aspects.

1. Solar energy collection flat plate collector The solar devices that appeared in the early days of history were mainly solar power devices, most of which used concentrating collectors, and only a few used flat plate collectors.

Solar power generation, solar energy storage, solar cars, plant photosynthesis requires solar energy, as well as solar watches, solar computers, solar calculators, etc., all absorb solar energy through electronic panels. There are many things that can be done, basically photoelectric or photothermal conversion. Needless to say, photovoltaics, solar panels.

Light thermal: such as water heaters, solar rice stoves, etc. There are many things that can be done, basically photoelectric or photothermal conversion.

Solar power bank, solar water heater, solar tram, solar baffle.