Energy Process Optimization of Compressed Air System Based on Global Process Integration Technology Ma Tianqi 1 Jia Zhenyuan 2 Li Hongqi 1 (1 School of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China; 2 Beijing Huayuan Yitong Heating Technology Development Co., Ltd., Beijing 100070) The global process integration technology is used to research and analyze the energy process optimization of the compressed air system. The single point energy saving for the air compressor is extended to the global energy saving at the energy process level for the entire compressed air system. The results were compared and analyzed. When the energy efficiency of the compressed air system was increased to a certain level, the significance of energy-saving optimization for the air compressor main unit (single unit) was gradually reduced, and the technical difficulty and cost increased significantly.
Theoretical and experimental research on condensing evaporator in automatic cascade refrigeration system 芮 Shengjun, Zhang Hua, Zhao Wei, Li Juanjuan (Institute of Refrigeration Technology, University of Shanghai for Science and Technology, Shanghai, 200093) The theoretical calculation of heat transfer in the generator has obtained three levels. Theoretical calculation data of heat transfer of two condensing evaporators in an automatic cascade refrigeration system,
Chromium carbide thermal spray powder is a type of coating material used in thermal spray processes. It is composed of chromium and carbon, with the chemical formula Cr3C2.
This powder is commonly used in applications where high wear resistance and hardness are required. It is often applied as a protective coating on surfaces that are subjected to abrasive or erosive environments, such as industrial equipment, cutting tools, and engine components.
The thermal spray process involves heating the powder to its melting point and then propelling it onto the surface to be coated using a high-velocity gas or plasma stream. Upon impact, the molten particles solidify and bond with the substrate, forming a dense and durable coating.
The chromium carbide coating provides excellent resistance against wear, corrosion, and oxidation. It also exhibits good adhesion to various substrates, including metals, ceramics, and composites. Additionally, it has a low coefficient of friction, making it suitable for applications where reduced friction and improved sliding properties are desired.
Overall, chromium carbide thermal spray powder is a versatile and effective coating material that offers superior protection and performance in demanding industrial applications.
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