A case study of achieving the reproduction and control of temperature and humidity environments below freezing in a large-scale vehicle testing chamber.
The winter heating of EVs (electric vehicles) relies on heat pump operation using outside air as the heat source, which has led to issues caused by frost on the outdoor unit. Therefore, the establishment of sub-zero humidification technology and temperature and humidity control technology, as well as the development of low-temperature humidification technology, has become urgent. As a result, a newly developed hot water pan humidification system has achieved high-precision humidity control. The guaranteed humidity range at sub-zero temperatures (0 to -20°C) has been expanded, and effectiveness measurements have demonstrated successful temperature and humidity control at sub-zero conditions in a real vehicle test chamber with a large space. [Case Overview] ■ Overview: Environmental test chamber, low-temperature humidification system ■ Completion: September 2020 ■ Room dimensions: 6.0m × 14.0m × 3.5mH ■ Room volume: 294.0m³ ■ Temperature: -20°C to +38°C DB ■ Humidity: 30 to 80% RH ■ Internal heat generation: 80kW *For more details, please refer to the PDF document or feel free to contact us.
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【System Features】 ■ High-precision humidity control ■ Stable humidity control during continuous operation ■ Achieves continuous operation at -20℃±0.5℃DB/90±5%RH for 24 hours ■ Anti-icing measures for temperature and humidity sensors *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Our company is a business that integrates large air conditioning equipment (development, manufacturing, sales, and service) and Daikin Plant Co., Ltd., which has a proven track record and experience in air conditioning and refrigeration engineering since 1969, to respond to more advanced social needs. We utilize our accumulated know-how in "engineering," incorporate diverse technologies to develop "products," and provide "services" by engineers who are well-versed in the equipment. By leveraging these three strengths, we support every aspect of the lifecycle of our customers' equipment. Please feel free to contact us if you have any requests.