From the viewpoint of the power to engine weight ratio, 2-stroke engines have at least 40% better performance than 4-stroke engines but they produce undesirable emission levels with poor lubricating management. Therefore, it will be the main challenge in the double acting ICE`s.
In general lots of research is going on about drag reduction and improving the aerodynamic efficiency of flight vehicles, by adopting various methods. The aim of the research is to perform a detailed study on the effects of surface roughness on flow over an aerofoil in the trailing edge.
Ancillary loads in vehicles are necessary for passengers and to regulates vehicular operations. They are independent of vehicle speeds but show-up as a constant power usage to perform duties. For instance,
Driver alerting device
Many car accidents are caused by driver sleepiness, victimizing the conductor, passengers, people in near distance vehicles and pedestrians. The use of stimulating beverages and drugs makes things worse, as it creates an impression of overcoming fatigue.
Drone Swarm Defense System.
• What problem does your design idea solve?
Countering extremely high speed, potentially explosive projectiles that are trying to blow up very expensive ships.
• What are the potential benefits?
Functioning defense, relatively inexpensive compared to what it is protecting. Easy to replace,
Current dry earplugs for water activities (swimming etc.) create a .45lb psi pressure differential between the earplug and the ear drum for every 1' they are submerged below the surface, At 10' underwater there is nearly a 5lb psi pressure problem, seeking to rupture the tympanic membrane.
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