Effect of swirling vanes on performance of steam–water jet injector

The effect of water swirling vanes and steam swirling vanes on the steam–water jet injector with central water nozzle was experimentally investigated. The performance of the steam–water jet injector with water/steam swirling vanes was compared with that without swirling vanes. The exergy analysis wa...

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Veröffentlicht in:Applied thermal engineering 2010-05, Vol.30 (6), p.623-630
Hauptverfasser: Yan, JunJie, Chong, DaoTong, Wu, XinZhuang
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creator Yan, JunJie
Chong, DaoTong
Wu, XinZhuang
description The effect of water swirling vanes and steam swirling vanes on the steam–water jet injector with central water nozzle was experimentally investigated. The performance of the steam–water jet injector with water/steam swirling vanes was compared with that without swirling vanes. The exergy analysis was also carried out. According to the experimental results and analysis, the water swirling vanes could effectively enhance the performance of the jet injector, but the steam swirling vanes weakened the performance of the jet injector. When the water swirling vanes were equipped, the maximum amplitudes of increase in the entrainment ratio and exergy efficiency were 172% and 93%, respectively, and the highest inlet water temperature increased from 70 °C to 80 °C. The performance of steam–water jet injector with water swirling vanes was also investigated. The results showed that the entrainment ratio decreased with the increase of the inlet water pressure and temperature, and increased with the increase of inlet steam pressure. The resistance coefficients increased with the increase of the inlet water pressure and temperature, and decreased with the increase of inlet steam pressure.
doi_str_mv 10.1016/j.applthermaleng.2009.11.007
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The performance of the steam–water jet injector with water/steam swirling vanes was compared with that without swirling vanes. The exergy analysis was also carried out. According to the experimental results and analysis, the water swirling vanes could effectively enhance the performance of the jet injector, but the steam swirling vanes weakened the performance of the jet injector. When the water swirling vanes were equipped, the maximum amplitudes of increase in the entrainment ratio and exergy efficiency were 172% and 93%, respectively, and the highest inlet water temperature increased from 70 °C to 80 °C. The performance of steam–water jet injector with water swirling vanes was also investigated. The results showed that the entrainment ratio decreased with the increase of the inlet water pressure and temperature, and increased with the increase of inlet steam pressure. The resistance coefficients increased with the increase of the inlet water pressure and temperature, and decreased with the increase of inlet steam pressure.</description><identifier>ISSN: 1359-4311</identifier><identifier>DOI: 10.1016/j.applthermaleng.2009.11.007</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Energy ; Energy. Thermal use of fuels ; Entrainment ; Entrainment ratio ; Exact sciences and technology ; Exergy ; Exergy efficiency ; Heat transfer ; Injectors ; Inlets ; Nozzles ; Resistance coefficient ; Steam–water jet injector ; Swirling ; Swirling vanes ; Theoretical studies. Data and constants. 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The performance of the steam–water jet injector with water/steam swirling vanes was compared with that without swirling vanes. The exergy analysis was also carried out. According to the experimental results and analysis, the water swirling vanes could effectively enhance the performance of the jet injector, but the steam swirling vanes weakened the performance of the jet injector. When the water swirling vanes were equipped, the maximum amplitudes of increase in the entrainment ratio and exergy efficiency were 172% and 93%, respectively, and the highest inlet water temperature increased from 70 °C to 80 °C. The performance of steam–water jet injector with water swirling vanes was also investigated. The results showed that the entrainment ratio decreased with the increase of the inlet water pressure and temperature, and increased with the increase of inlet steam pressure. The resistance coefficients increased with the increase of the inlet water pressure and temperature, and decreased with the increase of inlet steam pressure.</description><subject>Applied sciences</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Entrainment</subject><subject>Entrainment ratio</subject><subject>Exact sciences and technology</subject><subject>Exergy</subject><subject>Exergy efficiency</subject><subject>Heat transfer</subject><subject>Injectors</subject><subject>Inlets</subject><subject>Nozzles</subject><subject>Resistance coefficient</subject><subject>Steam–water jet injector</subject><subject>Swirling</subject><subject>Swirling vanes</subject><subject>Theoretical studies. Data and constants. 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The performance of the steam–water jet injector with water/steam swirling vanes was compared with that without swirling vanes. The exergy analysis was also carried out. According to the experimental results and analysis, the water swirling vanes could effectively enhance the performance of the jet injector, but the steam swirling vanes weakened the performance of the jet injector. When the water swirling vanes were equipped, the maximum amplitudes of increase in the entrainment ratio and exergy efficiency were 172% and 93%, respectively, and the highest inlet water temperature increased from 70 °C to 80 °C. The performance of steam–water jet injector with water swirling vanes was also investigated. The results showed that the entrainment ratio decreased with the increase of the inlet water pressure and temperature, and increased with the increase of inlet steam pressure. The resistance coefficients increased with the increase of the inlet water pressure and temperature, and decreased with the increase of inlet steam pressure.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.applthermaleng.2009.11.007</doi><tpages>8</tpages></addata></record>
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subjects Applied sciences
Energy
Energy. Thermal use of fuels
Entrainment
Entrainment ratio
Exact sciences and technology
Exergy
Exergy efficiency
Heat transfer
Injectors
Inlets
Nozzles
Resistance coefficient
Steam–water jet injector
Swirling
Swirling vanes
Theoretical studies. Data and constants. Metering
Vanes
Water pressure
title Effect of swirling vanes on performance of steam–water jet injector
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