For corrosive applications, special designs and materials of construction are available. They are available in single- or multi-stage arrangements and can be operated with a wide variety of motive fluids. Steam Jet Ejectors are based on the ejector-venturi principle. This vast experience allows S & K to handle virtually any jet ejector applicationno matter how complex. Keywords: ejector, CFD, ejector refrigeration, air conditioning 1. These parameters will be used in the experimental test ring and validated in the near future. Unique Systems ejectors are designed and manufactured in compliance with HEI Standards. Steam Jet Ejectors Bulletin 5E-H Introduction Schutte & Koerting has a century of experience in designing and building efficient jet vacuum ejectors. angle of 2, divergent wall angle of 3, and ejector throat length of 137 mm. A steam ejector can therefore be considered a thermodynamic pump. The total mass of process gases and steam enters the convergent-divergent diffuser, where velocity energy is converted into pressure. With this contact, the steam imparts velocity energy to the process and is decelerated. At the nozzle discharge, the now high-velocity steam flows through an air chamber where it comes into contact with and entrains the process vapors to be evacuated. The steam propellant expands while traveling through a divergent nozzle, converting pressure energy into velocity energy. The operation of steam ejectors is based upon the mass-velocity (venturi) principle. Their simplicity allows them to be manufactured from almost any material that can be machined or welded. As they have no moving parts, ejectors can provide many years of trouble-free operation. Steam jet ejectors are the simplest and most reliable form of vacuum producing pumps or compressors.
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