Ammonium perchlorate (AP) stands out as the predominant oxidizer in solid rocket propulsion systems, while sorbitol, frequently employed a fuel sounding rockets, is expected to generate non-hazardous gases during combustion. This study reports on effect of sorbitol potential organic green addition additive metals heat combustion, thermal properties and specific impulse for ammonium based propellant. The was measured using PROPEP 3.0 (Propellant evaluation program). Solid propellant...

Ammonium perchlorate (AP) stands out as the predominant oxidizer in solid rocket propulsion systems, while sorbitol, frequently employed a fuel sounding rockets, is expected to generate non-hazardous gases during combustion. This study reports on effect of sorbitol potential organic green addition additive metals heat combustion, thermal properties and specific impulse for ammonium based propellant. The was measured using PROPEP 3.0 (Propellant evaluation program). Solid propellant...

Liquid atomization is a process of changing the liquid into small droplets. There are many applications which related to including fuel injection in combustion systems and also agricultural sprays. In pressure swirl atomizer, injected atomizer through tangential port swirling motion formed inside chamber. At high strength motion, an air core will be visible atomizer. The then discharged from orifice form spray breaks up objective this paper report on effect inlet slot number (n) cone angle...

Liquid atomization is a process of changing the liquid into small droplets. There are many applications which related to including fuel injection in combustion systems and also agricultural sprays. In pressure swirl atomizer, injected atomizer through tangential port swirling motion formed inside chamber. high strength motion, an air core will be visible atomizer. The then discharged from orifice form spray breaks up objective this research investigate effect various geometries on diameter....

Lean Manufacturing System (LMS) is an important approach that could maximize customer value and reduce the amount of waste. The use LMS in Malaysia still lacking especially among Small Medium Enterprises (SME) rural areas. introduction Islamic values to existing expected improve awareness acceptance SME merging lean manufacturing tools leverage on culture locals. objective this study assess level practice systems management seven wastes. This a case automotive vendor. A field observation was...

In the application of sprays produced by an atomizer, spray angle is one key performance parameters. A larger often required in providing a better dispersion. Swirl effervescent atomizer existing atomizers with capability to produce large angle. The formation from this however hardly understood. newly-designed swirl was developed and tested different swirl-generating vane order understand intensity effect on Experiments were carried out based cold flow test approach using water as working...

A wider spray angle produced by an atomizer is often required in providing a better dispersion. The formation and wideness of the were reported to be affected changes geometrical parameters. In present study, effect interaction between two parameters (swirl-generating vane discharge orifice diameter) on swirl effervescent was studied. newly-designed developed with 30°, 45° 60° swirl-generating 1.5, 2.0 2.5mm diameter. performance tests carried out using water as working fluid nitrogen gas...

A swirl atomizer is a widely applied spray-generating device. The swirling motion of induced either by tangential inlet or swirl-generating vane. effect produces spray with wide angle which important in various applications such as gas cooling, diesel engine combustion, and automatic hand sanitizer. An intense mechanism was reported to significantly affect the angle. attempt made combining vane single embodiment create more effect. experiment conducted pipe flow transition turbulence...

The swirl effervescent injector has more desirable characteristics because it allows a system to run on low injection pressure and yet is still able achieve an efficient atomization. In previous studies other types of injectors, spray breakup length was reported as one the important since shorter tend provide earlier However, intensive are scarce. This paper intended describe geometrical design procedures performance assessments newly developed injector. designing injector, similitude...

Swirl effervescent atomizer consists of two atomization mechanisms, and swirl. For a swirl-related atomizer, the air/gas core diameter was reported to be one factors affecting widening spray angle. A wider angle is important provide better distribution. The characteristic gas in an inside-out swirl investigated as part study understanding mechanism this type atomization. interaction effects between three independent parameters (i.e. swirl-generating vane angle, flowrate discharge orifice...

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Mohd Syazwan Firdaus Mat Rashid, Ahmad Hussein Abdul Hamid, Zulkifli Ghaffar, Khairil Azizi Mohamad Zaki; An experimental investigation on spray characteristics emanating from liquid–liquid coaxial swirl atomizer. AIP Conf. Proc. 29 June 2012; 1440 (1): 591–594. https://doi.org/10.1063/1.4704267 Download...

Spray characteristics and internal flow structures of an atomizer are important parameters in indicating their performances. Both affected by the operating conditions geometries. This study investigates effect geometries on spray angle, breakup length gas core diameter swirl effervescent atomizer. work is conducted specifically to find most critical that will produce required structure. The performance tests were carried out using water as working fluid nitrogen atomizing agent. High-speed...

A widely distributed spray is an important feature for atomizer which required in various applications such as gas cooling, turbine combustion, and fluidized bed granulator. Pressure-swirl example of provides a wide angle through the swirling effect inside atomizer. One parameters affecting geometrical constant, K. Another parameter pressure-swirl discharge coefficient, Cd. Discharge coefficient describes throughput liquid flow. An experimental test-rig was constructed to conduct performance...

Air core is an important parameter in pressure swirl atomizer since formation of air determines the thickness discharged liquid sheet and effective flow area nozzle discharge. This consequently will affect coefficient discharge spray angle. study conducted for investigation relation between dimensionless numbers on diameter. Dimensionless are helpful aid quantification independent parameters involving design operating conditions simultaneously. Reynolds number, Re orifice-to-swirl chamber...

The interaction of a liquid with the surrounding air produces unstable waves that disintegrate into droplets, which is known as atomization. common internal flow atomization nozzle experiences single-phase but might turn multiphase existence cavitation. Cavitation in has gotten lot attention because positive and negative consequences it can have depending on application. One such advantageous result cavitation been used to promote jets by causing gas bubbles atmosphere collapse. Most past...

Issues of propellant atomizing, mixing and viscous loss become increasingly more important as the thrust chamber are reduced in size. The present investigation examines behavior resulting sprays emanating from swirl effervescent atomizers at various gas-to-liquid ratios (GLRs) aeration tube configurations. A series cold flow test has been conducted, where water nitrogen were used simulation fluids. Results show that injection atomizing gas tends to reduce spray angle discharge coefficient....