Experimental Analysis of Main Characteristics Ejectors, Comparative Analysis of Experimental Data Calculatedly Characteristics
Journal Title: TEM JOURNAL - Year 2013, Vol 2, Issue 1
Abstract
Ejectors are used to lower the temperature of water in the district heating system at the level of system temperature 90/70°C. The basic advantages of the ejector, as a unit for mixing, the simplicity, safety and which has no moving parts. To work the ejector is necessary to have the terminal consumers significant difference in effort between supply and return water heat networks, at the expense of that is getting increased water velocity at the exit of the ejector nozzle, it is necessary to create the effect of injection (mixing). Therefore, the flow of water in the local heating system will change in direct proportion to the flow of water from the thermal network through the ejector nozzle. Serious deficiencies schemes with the absence of a ejector independent circulation of water in the local heating plant. When you cut the flow of water from the heat network in the ejector nozzle, for example, the exclusion of the thermal network fault, the interrupted water circulation in the installation of heating, which can lead to the freezing of water in service. When the account pressure drop in heating systems and 15,000 Pa usually applied ejector, and more pressure is used centrifugal pumps.
Authors and Affiliations
Sefik Bajmak, Dragica Milenkovic
Keywords
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