In terms of refrigeration, we know or have heard more or less in our lives, such as common air conditioners, which use compression mechanisms to cool, while semi-conductive systems experience relatively little. However, thermal electricity cooling has increased over the years in the context of consumer-type applications and has slowly moved closer to ordinary people's horizons, such as mobile phone heaters, vehicle refrigerators for new energy vehicles, etc。
As the two dominant ways of cooling, we understand the workings of the two, and we understand the differences
Semi-directive cold
Compressor
Semiconductor cold system (parter effect) principles: when currents come into contact with n semiconductor material by type p, transport fluids to absorb heat (cold end) and release heat on the other side (heat end)
Compression mechanism cooling (vapour compression cycle) principles: the compressor drives the refrigerant (e. G. Freon) cycle, heat in the evaporation unit, heat in the condenser, and transports heat by phase。
Let's also compare the differences in the dimensions of refrigeration:
With their respective strengths and weaknesses, there are different applications
Precision temperature control needs
Medical equipment: pcrs, blood analysers, etc. Require ±0. 1°c accuracy and semiconductor second response characteristics meet stringent requirements。
Laboratory instruments: equipment sensitive to temperature fluctuations such as optical equipment, lasers, etc。
Special environmental adaptation
Space and deep-sea equipment: vibration resistant, vacuum resistant properties for satellite, submersible。
Closed space: no refrigerant leakage risk suitable for medical module, high altitude equipment。
• portfolio and silent scenes
Car-borne mini refrigerators: short-distance cold drinks (temperature difference of 10-15°c) with clear silent advantage。
Electronic dissipation: low power scenarios such as local cooling of cpus and small incubators。
:: in the area of light communications
Photoscopes: mini-refrigerant, small size, better integrated installation in to tube casings, good parallel flattening, light quality。
The core application scene of compression mechanism cold
Large capacity cryogenic storage
Domestic/commercial refrigerators: at temperatures below 18°c need to be maintained, compressors can efficiently freeze large capacity。
Refrigeration systems: industrial-grade cold storage (e. G. Logistics warehousing, food processing) relies on compressors to achieve -35°c to -18°c stable low temperatures。
High-temperature refrigeration: car-borne refrigerators can remain below 0°c at high summer temperatures and are suitable for long-distance transport。
High energy consumption ratio scenario
Equipment requiring continuous operation, such as air conditioners, central refrigeration systems, and high temperature differentials, compressors cop (2. 0-4. 0) are significantly better than semiconductors
Thus, the compression mechanism has an absolute advantage in a high-power, low-temperature scenario, while the semi-conductor cold is widely used in specific areas by precision temperature control, silence and adaptability. The selection needs to balance temperature needs, environmental conditions and costs. You know how to choose the right cooler? # semiconductor cold #
