Although it is already in the summer, but walking in the street during the day, people are still sweating. Fortunately, whether it is in the bus, in the office building, or in our own home, air conditioning brings a touch of coolness to the hot weather, but you have found that many people do not enjoy it at work, such as sanitation workers. Construction workers, etc.
Zhang Xinliang, a new energy professional teacher at Jiangsu Institute of Engineering and Technology, led several students to jointly develop an intelligent constant temperature air conditioner. If it can be promoted and applied in the future, many outdoor workers will wear "air conditioning" on the body.
Inspired by home air conditioning, this intelligent thermostat air conditioner has both cooling and cooling, but its design takes a completely different approach.
In the current research and development field, the air-conditioning-adjustable temperature "clothing" is only warm-type, and the development of "cooling" clothing is rarely involved. The household air conditioner generally adopts a mechanical compression type refrigerating device, and its working principle is that the liquid refrigerant enters the indoor unit of the air conditioner, absorbs a large amount of heat, makes the indoor unit become cold, and the fan then blows out the "inhaled" air through the indoor unit, so that It is cold wind. After that, the refrigerant that has become gaseous returns to the compressor for compression, and then is sent to the outdoor unit to dissipate heat and then becomes a liquid state, and then enters the indoor unit, and thus reciprocates. The compressor is like a beating heart, so that the blood-like refrigerant continuously flows in the air conditioner to adjust the temperature of the room. However, the mechanical compression refrigeration device is too bulky if worn on the body. .
Inspired by home air conditioning, this intelligent thermostat air conditioner has both cooling and cooling, but its design takes a completely different approach. Zhang Xinliang said that the core of the intelligent constant temperature service air conditioner is a special semiconductor material. After the semiconductor material is connected to the power supply, the temperature difference between the front and the back can reach several tens of degrees Celsius. "According to the performance of special semiconductors, the low temperature part is oriented to the human body, the high temperature part is "backward" to the human body, and the heat is dissipated at the high temperature position of the semiconductor material corresponding to the fabric. The temperature of the low temperature part of the semiconductor material can reach 20 to Between 30 degrees Celsius, it is a comfortable temperature range that the human body feels."
If you are wearing this smart thermostat air conditioner, after about 10 seconds of power on, you can reach the temperature you want in the clothes. Its "smart" feature is also reflected in the automatic opening and closing of the temperature range according to the user's needs.
In addition to the use of special semiconductor materials, this intelligent thermostat air conditioner is made of fire-resistant and heat-insulating fabric. “The intelligent thermostat air conditioner is about two kilograms, which is heavier than our ordinary clothes. This is because we consider it. To be worn by special staff, such as welding workers, if wearing ordinary fabric is easy to damage, so choose fire-proof insulation fabric, which can ensure the "air conditioning" normal operation, reduce air-conditioning loss, and protect the wearer's safety. Zhang Xinliang said.
The outermost layer of the intelligent thermostat air conditioner is a solar panel installed on the back of the human body. The panel can store solar energy in the lithium battery, so that a stable power supply can be obtained. “If it is the shipyard's staff, once it enters the cabin, it will not be exposed to sunlight. In order to ensure normal use, this intelligent thermostat air conditioner can also be connected to the mains. Just add a voltage converter and change the voltage of 220 volts. After pressing it, it can make it work normally." Zhang Xinliang said.
If you are wearing this smart thermostat air conditioner, after about 10 seconds of power on, you can reach the temperature you want in the clothes. In addition, its "smart" feature is also automatically turned on and off according to the temperature range of the user's demand. Zhang Xinliang said that in a special semiconductor, the heat insulation layer between the high temperature part and the low temperature part needs to completely block the heat transfer between the two. The choice of this heat insulation material is the difficulty and key to the development of this technology. There is also a need to find better insulation materials to further enhance the operation of this intelligent thermostat air conditioner," he said.
Our reporter Xiao Mingshu photo provided by Zhang Xinliang
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