After re-examining the hot helium balloon, it was found that the furnace was made of a thin aluminum alloy because of the hot air flowing in the exhaust duct. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

The temperature inside the pipe is very high, and the air temperature outside is very low, and the temperature difference between the inside and outside reaches 70 or 80 degrees, and this temperature difference can drive at least two kinds of power generation equipment.

One is the Stirling engine, which is a unique heat engine, and its actual efficiency is almost equal to the theoretical maximum efficiency.

The Stirling engine is powered by the expansion of gas by heat and cold compression, and is an external combustion engine that burns the fuel continuously, and the evaporated expanded hydrogen or helium is used as the power gas to make the piston move, and the expansion gas is cooled in the cold chamber, and this cycle process is carried out repeatedly.

In order for the Stirling engine to run, it is necessary to maintain the temperature difference between the hot and cold chambers, and this condition has been reached on the pipes of Wei Minsheng's hot helium balloon.

Anyway, the heat lost from the pipes is superfluous, so Wei Minsheng can accept the disadvantage that its heat loss is two to three times that of the internal combustion engine, but the equipment of the Stirling engine is heavier, which is still a bit more than worth the loss for a platform in the air.

The other is the use of semiconductors to generate electricity, which some computer players have played for a long time, that is, semiconductor refrigeration sheets.

By using the Peltier effect of semiconductor materials, when direct current passes through a galvanic couple formed by two different semiconductor materials in series, heat can be absorbed and released at both ends of the galvanic material, respectively, and the purpose of cooling can be realized.

But there is also a reverse application of this kind of thing, that is, power generation, which uses the Siebok effect, which is the opposite of the Peltier effect, as long as there is a certain temperature difference between the two sides of the semiconductor cooling sheet, it can generate a stable voltage and current at both ends of the galvanic couple, which is a very good temperature difference generator.

This new type of electronic device has the characteristics of no noise, no pollution, small size, light weight, long life, fast starting speed, and efficient energy conversion, and can use waste steam heat, waste water heat, waste heat heat, solar heat, etc., it is simply a universal power generation equipment, but under the current conditions of the same power generation, the price is really a little high, so it affects the popularity.

Although ordinary semiconductor refrigeration sheets can also be used to generate electricity, the power generated is not high because the influence of high temperature is not considered during production, and it cannot withstand excessive temperatures.

Although the special semiconductor power generation sheet looks exactly the same as the refrigeration chip on the surface, it can withstand the high temperature of one or two hundred degrees.

As long as the temperature on both sides of the generator can be maintained at about 60 degrees, each square generator with a side length of four centimeters can output a voltage of about 3 volts and a current of about 0.5 amps, which is equivalent to 1 to 2 watts of power.

Although the higher the temperature difference, the higher the power, Wei Minsheng only uses waste heat to generate electricity, and there is no need to waste more energy to increase the temperature difference between inside and outside the pipeline.

If the power is small, install more power generation units, anyway, this thing does not occupy much area, a square area can install nearly 600 power generation sheets, if the pipe is full, even if there is some impact, it is not very difficult to obtain thousands of watts of power.

At present, Wei Minsheng only has one wifi base station installed on the electrical equipment installed on it, and the maximum power generally does not exceed 100 watts, and only needs to paste more than 100 pieces of power generation to meet the needs, and the investment of thousands of yuan is not much for Wei Minsheng now.

If you need to install more electrical equipment on this observation platform in the future, you only need to increase the number of power generators, and it is also very convenient to expand the capacity.

The current generated by the more than 100 generators is charged by a special controller for the solar power system, which charges the four batteries connected in series.

Why connect four batteries in series? Because Wei Minsheng also wants to save a UPS uninterruptible power supply, not because of its price, but because of the weight of the platform.

This high-power wifi base station uses a 48-volt power supply, if according to the usual design, the electric energy stored in the battery should be converted into 220 volts of alternating current through inverter equipment such as UPS, and then converted into a 48-volt DC power supply through the special switching power supply used by the wifi base station.

DC to AC, AC to DC, not only in the process of two conversions, there is not only energy loss, but also UPS and switching power supply, which is purely redundant.

Therefore, the output voltage of the special controller of the solar power generation system selected by Wei Minsheng is 48 volts, which directly connects the power socket of the wifi base station with the battery pack that has been connected in series into 48 volts in parallel.

In this way, when the lookout platform is floating in the air, the pipe temperature is high, the power generation power is also high, and the wifi base station is stored with a battery if it is not used up;

When the lookout platform is ready to descend to the next liftoff, when the temperature of the pipeline is low and the power generation is insufficient, the electric energy in the battery can be directly used to provide a stable DC power supply for the base station.