Hybrid Valve with Variable Performance Curves | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 58, Volume 15, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 15 – May 28 - 30, 2013, May 2013, Page 1-11 PDF (547.17 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.2013.22131 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| H. A. Heikal1; E. B. Shafik2; R. M. Abd El-Maksoud3 | ||||
| 1Professor, Dept. of Mech. Power Eng., Helwan University, Cairo, Egypt. | ||||
| 2Demonstrator, Dept. of Mech. Power Eng., Helwan University, Cairo, Egypt. | ||||
| 3Assistant professor, Dept. of Mech. Power Eng., Helwan University, Cairo, Egypt. | ||||
| Abstract | ||||
| Pipeline valves have been studied extensively to determine their inherent performance characteristics. However, some researchers introduced different internal designs for such valves to achieve the required characteristic. Consequently, this paper presents a new valve concept that consists of two identical portions of global type valves arranged in series configuration. The interaction between the two valve portions achieves an inherent flow coefficient range instead one performance curve. Experimental investigation is herein performed while studying the opening of the two valve portions, the variation of upstream pressure, Reynolds number and pressure loss coefficient. The investigation puts some global guidelines for valve performance and cavitation avoidance. | ||||
| Keywords | ||||
| valve; inherent performance characteristics; flow coefficient; pressure loss coefficient | ||||
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