Development of an internal air cooling sprayed oil injection technique for the energy saving in sliding vane rotary compressors through theoretical and experimental methodologies
| Autor: | Giuseppe Bianchi, Roberto Cipollone, Stefano Murgia, Giulio Contaldi |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Air cooling
Friction SVRC 020209 energy Mechanical Engineering Compressor Mechanical engineering Indicator diagram 02 engineering and technology Building and Construction 7. Clean energy Compressed air systems Sliding vane rotary compressor 020303 mechanical engineering & transports 0203 mechanical engineering Work (electrical) Pressure swirl nozzle 0202 electrical engineering electronic engineering information engineering Environmental science European commission Gas compressor Oil injection Energy (signal processing) Piezoelectric pressure transducer |
| Zdroj: | International Journal of Refrigeration. 52:11-20 |
| ISSN: | 0140-7007 |
| Popis: | The present work highlights the energy saving potential of the lubricant fluid supplied in Sliding Vane Rotary air Compressors. A Lagrangian theoretical model of a sprayed oil injection technology assessed the cooling effect of the lubricant due to the high surface to volume ratio of the oil droplets and predicted a reduction of the indicated power. The model validation was carried out through a test campaign on a mid-size sliding vane compressor equipped with a series of pressure swirl atomizers. The oil injections took place along the axial length of the compressor. The reconstruction of the indicator diagram and the direct measurement of the mechanical power revealed a reduction of the energy consumption close to 7% using an injection pressure of 20 bar. A parametric analysis on the injection pressure and temperature and on the cone spray angle was eventually carried out to identify an optimal set of operative injection parameters. The work has been done under the FP7 Project “Complete Vehicle Energy-Saving CONVENIENT” founded by the European Commission. |
| Databáze: | OpenAIRE |
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