Bicycle sales have been flourishing in America and other European countries in recent years, with some justification being high gas prices and the unequivocal pollution that contributes toward global warming. Booming bike sales attracts more bikers to the road and for long hours, during night in enjoyable weather. Cycling at night can be extremely dangerous. It’s not a good idea to ride a bike at night, especially when it’s too dark. It’s safe to always travel on a well-lit road. But when riding on a dark road, taking precautions for his safety should be the first priority for a biker, such as wearing bright clothes with reflective vest and reflectors on the bike, flashlight on the front of the bike. But what if you don’t have a reflective vest? What if the battery of the flashlight dies? A multipurpose bike can come in handy. The mechanical motion of the pedal can help convert its motion to electrical energy which can provide the LED’s on the bicycle, limitless amount of energy to work till the bicycle is running.
When the gear of the dynamo is engaged, the generator wheel rolls against the chain wheel and the flywheel on the same shaft as the dynamo. The dynamo fit into the bracket welded near the back of the bike. The chain on the right is driven by the pedals, while an added chain on the left spins the motor. On the side that's driven by the pedals, a freewheel rotates the wheel when pedaling but allows it to keep spinning forward, without the chain moving. When pedaling backwards, on the left side of the wheel, a fixed cog spins in the direction of the chain whenever the wheel is turning. This motion produces electricity, and the greater the speed, the greater is the amount of electricity produced. The principle of energy c...
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...ess economic. This requires energy, which can completely neglect the ecological and environmental advantage of pedal power. Moreover, there can be an additional slight loss of power as the battery stands idle, without use and the charge efficiency of the battery would decrease over time.
The bicycle powered generator represents a climax of the engineering education. The results far exceed our expectations with a power source that could provide ample amounts of energy. The bicycle generator is capable of outputting about 1000 watts hour a day. Some design improvements for future production would include overcharging prevention in the charging of the appliance, i.e. controlling the amount of power induced during the mechanical process. Depending on the need of the power, the overall design could be changed to handle varying loads much more effectively, in the future.
This study offers helpful information for anyone who wants to understand more about emergency vehicle lights and their physical and psychological effects on drivers. However, anyone that is charged with installing or buying emergency vehicle lights for first responder and emergency responder vehicles should read and understand this study. By understanding the information in this article, buyers and installers can save money, avoid aggravation, and help to protect officers, first responders, and emergency responders who are working and driving vehicles in the field.
A Modest Proposal For Making Driving More Entertaining, While Creating The Same Risks For Everyone On The Road
Statistics taking from Spain, United Kingdom, Germany and Netherlands show the majority of all bicycle accidents involve a motor-powered vehicle such as a car, bus, truck, tram, etc... [9]. In Germany in 2011, 10% of fatally injured road users were cyclists [13]. Bicycle-vehicle accident accounted for 60% of all bicycle accidents, while bicycle-pedestrian and bicycle only accidents make up 5~6% and 12~16% respectively [9]. Data presented in a report conducted in Germany stated, accidents involving collisions with vehicles accounted for 38% of all bicycle traumas while 26% of incidents involved the rider only [14]. The most common collision partner in a bicycle-vehicle accident was a
Motorcycle is also called motorbike is a two or thee wheeled vehicle powered by a petrol, diesel, engine mounted midway between the front and rear wheels. The motorcycle, which is having much heavier and stronger, frame than that of a bicycle. The motorcycle is developed from the bicycle. The people for their convenient and smooth travel for the recreation and sports purpose use the motorcycles. The motorbikes are used throughout the world, the police and the fire department use motorcycles to carry medical personnel to accident scenes. Before the 20yrs ago a motocycle was carried for the noise, dirt and frequent breakdown which the use of its entailed. It was then truly a sportsman’s machine and of little use in the commercial field.
Magnetic bearings have provided us with new ways and innovations to run various systems such as space equipment and energy storage systems. Magnetic bearings have given people a way to run systems unlike any other bearing system. They have implemented a lubrication free and maintenance free system, which in turn provides a much cheaper and unblemished system. Although magnetic bearings are not perfect and are limited in specific areas, we believe they have the potential to revolutionize the field of mechanical power transmission.
With the transition of combustion chambers into the engines, automobile industry were developed and compact heat machines were produced. Nowadays electric engine automobiles are produced and launch to the market but, it seems hard to solve the energy storage problem. Batteries are very heavy, it takes long hours to charge and runs out in 160km. They are suitable for urban-use. It is possible to go more than 1000 km with a full tank gas internal combustion engine automobile, but it is not possible to go this much distance with electric engine cars. That’s is why ,bus, track or this kind of vehicles can not be worked with electric or batteried engine system. So, it
the bike moves, a wheel on the top of the dynamo turns a magnet inside
The National Highway Traffic Safety Administration (NHTSA) defines aggressive driving as "the operation of a motor vehicle in a manner that endangers or is likely to endanger persons or property"—a traffic and not a criminal offense like road rage. Examples include speeding or driving too fast for conditions, improper lane changing, tailgating and improper passing. Approximately 6,800,000 crashes occur in the United States each year; a substantial number are estimated to be caused by aggressive driving. 1997 statistics compiled by NHTSA and the American Automobile Association show that almost 13,000 people have been injured or killed since 1990 in crashes caused by aggressive driving. According to a NHTSA survey, more than 60 percent of drivers consider unsafe driving by others, including speeding, a major personal threat to themselves and their families. About 30 percent of respondents said they felt their safety was threatened in the last month, while 67 percent felt this threat during the last year. Weaving, tailgating, distracted drivers, and unsafe lane changes were some of the unsafe behaviors identified. Aggressive drivers are more likely to drink and drive or drive unbelted. Aggressive driving can easily escalate into an incident of road rage. Motorists in all 50 states have killed or injured other motorists for seemingly trivial reasons. Motorists should keep their cool in traffic, be patient and courteous to other drivers, and correct unsafe driving habits that are likely to endanger, antagonize or provoke other motorists. More than half of those surveyed by NHTSA admitted to driving aggressively on occasion. Only 14 percent felt it was "extremely dangerous" to drive 10 miles per hour over the speed limit. 62 percent of those who frequently drive in an unsafe and illegal manner said police for traffic reasons had not stopped them in the past year. The majority of those in the NHTSA survey (52 percent) said it was "very important" to do something about speeding. Ninety-eight percent of respondents thought it "important" that something be done to reduce speeding and unsafe driving. Those surveyed ranked the following countermeasures, in order, as most likely to reduce aggressive and unsafe driving behaviors: (1) more police assigned to traffic control, (2) more frequent ticketing of traffic violations, (3) higher fines, and (4) i...
Defensive driving can save lives. It can turn a nonchalant call home into a terrifying call home. It is making the choice between stopping at a stop sign or stopping someone’s life. Defensive driving should be a part of everyone’s daily driving routine. If you practice defensive driving you can save yourself time, money, and a lot of headaches. It also benefits you in more ways than one.
The computer has a major role in determining on how much power the car needs from the electric motor. The electric motor gets the power back from a set of Nickel Metal Hydride batteries. The computer reclaims excess heat from the brakes and electric motor to...
Richard Petty once said “You’ll got home safe, so drive safe, and stay safe.” Being a racing legend, he is an advocate for safe driving to minimise the cases of road crushes that have been on the rise. He double up as the chairman of the Veterans’ Safe Driving Initiative, the initiative is aimed at guiding the veterans returning from deployment on safe driving tips. It is necessarily important since the infrastructure has changed over time. Another initiative is being run in Minnesota where the teens are guided on the important safe driving tips. Study shows that more crushes are likely to occur in teen driving than veteran driving. It is also evident that young drivers are more likely to cause a crush within six months of passing the driving test and young male are worse than the females in the field.
The electric car has been around since the 1830s, eventually transitioning to a practical transportation choice in the late 1800s after improvements in the storage capacity of batteries. The electric car was at the peak of its popularity in the early 1990s. However, its popularity was short-lived; by 1935 the electric car had become a rarity, being replaced by the gas-powered vehicles. Reasons for the change being that the electric car could not travel long distances without recharging due to the limited storage capacities of batteries, it was faster to fuel a gas car than recharge an electric car, and finally, the mass production of the gas car lowered its price significantly compared to the electric car. Present day, the conventional gas powered vehicle is still preferred over electric cars, but advances in hydrogen fuel cell technology are making the option of owning a hydrogen fuel cell powered car more of a possibility as well as highlighting the benefits of other electric cars. In the following paragraphs the operation of the Ballard fuel cell is explained, the challenges with implementing a fuel cell system is discussed and lastly, the possible social and environmental effects of electric cars are explored.
The stator is the stationary component while the rotor is the rotational component of the motor. Usually magnetic fields are created when an electric current is applied to a set of conductive wires wound together (Dixon, 2001). Magnetic fields can also be created using Permanent Magnets (PM). Electrical motors can also work as electrical generators (Correla, 1986). Electrical generators are devices capable of converting mechanical energy into electrical energy. An example would be a wind turbine which works as an electrical generator. It converts the mechanical energy of the rotating shaft caused by wind into electrical energy (Correla, 1986). The focus of this research will ...
The turbine shaft is then connected to the alternator in the generator. The main job of the alternator is to use and absorb the kinetic or otherwise mechanical energy produced by the turbine device to create rotational motion and as a result produce electricity (OXLADE 2011). The rotation of the turbine shaft in turn causes the inner workings of the generator to rotate as well. These inner modules work collectively to cause relative movement between the magnetic and electric fields, which in turn generates electricity. The inner modules will include the stator which is the fixed and motionless module that comprises a set of electrical conductors convoluted in coils over an iron core and the armature which is the poignant module that produces a rotating magnetic field. In the space within the generator above identified as the stator, there are two polar field magnets that create a magnetic field.
A bicycle is the most efficient vehicle ever designed. Its cost, in terms of energy spent in carrying a comparable load over a comparable distance, is one-tenth that of the most efficient jet aircraft and about one-twentieth of the best automobile.