The Trane CenTraVac™ centrifugal chiller, for example, is one of the more reliable, efficient, low-emission and relatively quiet centrifugal chillers on the market today.

Air conditioning fan coil circulating cold (hot) air system, generally installed in the corridor within the decorative ceiling, and is divided into organized return air system and unorganized (using the ceiling space) return air system.

First, the refrigeration system pressure and temperature detection

(1) Refrigeration system pressure concept

Refrigeration system in operation can be divided into two parts of high and low pressure; high-pressure section from the compressor exhaust port to the throttle valve, this section is known as high-pressure; compressor suction port pressure is called suction pressure, suction pressure is close to the evaporating pressure, the difference between the two is the flow resistance of the pipeline; the pressure loss is generally limited to 0.018Mpa or less. Refrigeration system evaporating pressure and condensing pressure are in the compressor suction and discharge port detection. That is usually called the compressor suction and discharge pressure.

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On October 26, 2021, the State Council issued the Action Plan for Carbon Peak by 2030, stating that it should innovate talent training modes, encourage higher education institutions to accelerate the construction of disciplines and talent training in new energy, energy storage, hydrogen energy, carbon emission reduction, carbon sinks, carbon emission right trading, etc., and build a batch of colleges of future technology in the field of green and low carbon, modern industry colleges and demonstrative energy colleges.

On June 27-28, 2024, the 18th China Refrigeration and Air Conditioning Industry Student Science and Technology Competition "BITZER Cup" was successfully held in Beijing.