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...

The design of vortex promoters in a heated-wall duct is often limited by the considerations practicality, especially complex systems such as fusion blankets. present study investigates use current injection to invoke street vortices quasi-two-dimensional high transverse magnetic field magnetohydrodynamic flows enhance instability behind cylinder. intent generate intensive flow vorticity parallel downstream field-aligned Electric enters through an electrode embedded one Hartmann walls,...

This research reviews scissors lifts structure manufactured by AEREX, UMW Advantech Sdn. Bhd. that is used on a catering hi-lift using Finite Element Analysis (FEA). The one of the major and crucial components which mainly to hoist van body for aircraft servicing. ground support equipment commonly service commercial airliners. For design be approved Department Safety Health (DOSH) Malaysia under Hoisting Machine Design according DS-149 Standard, it must comply with specific engineering...

A vortex decay model for predicting spatial evolution of peak vorticity in a wake behind cylinder is presented. For vortices the stable region formation region, results have shown that presented has good capability within an advecting across 0.1 ≤ β 0.4, 500 H 5000, and 1500 ReL 8250. The also generalized to predict behaviour class quasi-two-dimensional magnetohydrodynamic duct flows. Comparison with published data demonstrates remarkable consistency.

This paper presents an experimental investigation carried out to compare specific wear rate and surface morphology between two types of natural fibres namely kenaf oil palm empty fruit bunch (OPEFB). Kenaf were received in long fiber size OPEFB different sizes (100, 125, 180 250 μm). Both materials mixed with the epoxy resin produce composites. Wear tests using Abrasion Resistance Tester dry sliding condition. These performed at room temperature for loads a constant velocity 1.4m/s. Based on...

ABSTRACT : Fuel injector for liquid rocket is a very critical component since that small difference in its design can dramatically affect the combustion efficiency. The primary function of to break fuel up into droplets. smaller droplets are necessary fast quiet ignition and establish flame front close head, thus shorter chamber possible be utilized. This paper presents an experimetal investigation mono-propellant hollow cone swirl injector. Several injectors with different configuration...

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....

The fluid dynamics and heat transfer characteristics of magnetohydrodynamic duct flow often degrade the laminarization caused by magnetic field. present work evaluates performance a system featuring alternating current injection from point electrode as vortex promoter for enhancement thermal-hydraulic characteristics. It is found that vortices generated alone generally induce greater with significantly smaller additional pressure loss than configurations physical obstacle. A maximum overall...

An experimental work to investigate the swirl spray characteristics that emanates from hollow–cone and solid–cone simplex atomizers is presented. Main objective of research characteristics, i.e. breakup length, discharge coefficient cone angle at different nozzle orifice diameter injection pressure. Discharge almost uninfluenced by operating Reynolds number. This test also reveals both length increases as increased. Higher pressure leads shorter wider angle.

Louver's design are play important role in designing an air intake system. On a gas turbine power plant application, this louver will redirect the flow path into compressor and for system's internal cooling. However, shape of louvers influence performance turbine. Disturbed airflow across may cause pressure drop air, which leads to reduction work output. In research, effect varying angle attack on airfoil flat investigated. Airfoil were based symmetrical 4-digit NACA shape, with its maximum...

Flow over bluff bodies produces vortex shedding in their wake regions, leading to structural failure from the flow-induced forces. In this study, a passive flow control method was explored suppress circular cylinder that causes many problems engineering applications. Perforated shrouds were used of at Reynolds number, Re = 200. The non-uniform and uniform holes with 67% porosity. spacing gap ratio between shroud set 1.2, 1.5, 2, 2.2. analysis conducted using ANSYS Fluent viscous laminar...

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...

The fusion reactor is anticipated to be a new source of clean energy. Magnetohydrodynamic flow in the blanket expected cause highly stable, causing heat transfer poor. Passive vortex promoter such as bluff body one methods found has great potential optimizing transfer. In this study, two circular cylinders staggered arrangement are introduced promote vortices enhance convection from heated wall using an electrically conducting fluid under constant magnetic field. effect Hartmann friction...

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...

Two people are required to operate current superbike paddock stands in order elevate the superbike.Lifting alone using design of stand may be impractical and inconvenient for users.To overcome this limitation, a new was conceived that could operated by single user.CAD CAE tools CATIA V5R18 software were utilised designing stand.A 3D CAD model developed analysed through finite element analysis (FEA) prototype fabricated verification testing design.The use saved much time work gave researchers...

Since the introduction of concept insensitive weapons, rocket motor designers must now ensure that their vulnerability is as low possible. One inherent characteristics a sugar-based propellant obvious plume coming out from nozzle result chemical reactions. The present work characterises novel minimum signature composite solid based on Ammonium perchlorate/Sorbitol with magnesium metal fuel and chlorine scavenger. elemental stoichiometric coefficient oxygen balance for mixture were calculated...

Smoke signals are traditionally used in military contexts, but recent times, they have gained popularity among civilians. The M18 smoke grenade was designed with a highly reactive oxidizer, KClO3, and substituting it safer notably KNO3, is one way that helps provide choice for civilian use. However, providing optimal formulations both deciding whether KNO3 can be substituted the traditional KClO3 oxidizer. One of techniques enhancing formulation Design Experiments (DOE). Many researchers...