Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)
- Volume 14 Issue 5
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- Pages.1330-1336
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- 1990
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- 1225-5963(pISSN)
DOI QR Code
An Experimental Study on the Atomization Characteristics of Coal-Water-Mxture
CWM의 미립화특성에 대한 실험적 연구
Abstract
The factors to act on atomization of liquid fuel are viscosity, geometric shape of nozzle, atomizing pressure, etc. Most of high viscous liquid fuels show decrease in viscosity by raising the preheat temperature, but the viscosity of liquid fuel like CWM does not readily change with fuel temperature. As an experimental study to investigate the atomizing characteristics of CWM, CWM fuel is atomizing with a twin-fluid atomizer, and the effects of the geometric shape of spray nozzle on atomization are investigated by measuring the Sauter`s Mean Diameter (SMD) of CWM. The summarized results obtained in this study are as follows ; (1) As the ratio of the mass flows of atomizing air to that of fuel (W