Speaking of pure electric cars, surely everyone will not feel strange? When it comes to pure electric cars, do you first think of the national government's energy is not posted? Haha, too, who can save money and not pay attention? Xiao Bian made a joke with everyone. Yes, when it comes to electric cars, everyone thinks of subsidies, no oil, environmental protection, and so on. Then let's talk about pure electric cars today.
Let's give everyone a popular science car, the Blade Electric Vehicles (BEV), which is a vehicle that is fully powered by rechargeable batteries (such as lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries, or lithium-ion batteries). In the early part of the 19th century in 1873, the British Robert Davidsson produced the first practical electric car in the world. This is more than 10 years earlier than the German-born Gottlieb Daimler and Karl Benz inventing gasoline-engined vehicles.
Pure electric vehicles eliminate the need for fuel tanks, engines, transmissions, cooling systems, and exhaust systems. Compared to conventional gasoline-powered internal combustion engine power systems, motors and controllers have lower costs, and pure electric vehicles have higher energy conversion efficiency. Because the energy source of electric vehicles - electricity, from large generators, the efficiency of small gasoline engines or even hybrid engines can not be compared. As a result, the cost of use of pure electric cars is declining. According to the data released by BYD F3e pure electric vehicle, 100 kilometers of driving consumes 12 degrees of electricity, according to 0.5 yuan of electricity price, 100 kilometers use cost only 6 yuan. And its prototype car F3 petrol fuel consumption of 7.6 liters per hundred kilometers, according to the current oil price of 6.2 yuan, the cost is 46.5 yuan. In contrast, the use of electric vehicles is one-eighth that of conventional gasoline cars.
What are the advantages of pure electric cars? Come with Xiaobian to see it,
Non-pollution, low noise: Electric vehicles have no exhaust gas produced during the operation of an internal-combustion engine, and do not produce exhaust pollution. They are very beneficial to environmental protection and air cleanliness, and are almost “zero pollutionâ€. It is well-known that pollutants such as CO, HC and NOx, particulates, odors, etc., in the exhaust gas of internal combustion engines form acid rain mists and photochemical smog. Electric cars have no noise from internal combustion engines, and motor noise is also smaller than internal combustion engines. Noise is also harmful to the human auditory, nervous, cardiovascular, digestive, endocrine, and immune systems.
The structure is simple and maintenance is convenient: the electric vehicle has a simpler structure than the internal combustion engine, and the operation and transmission components are small, and the maintenance workload is small. When using AC induction motors, the motor does not require maintenance, and more importantly, the electric vehicle is easy to operate.
High energy conversion efficiency: Research on electric vehicles shows that their energy efficiency has exceeded that of gasoline-powered vehicles. Especially in the city, cars stop and go, driving speed is not high, electric cars are more suitable. When the electric vehicle is stopped, no electric power is consumed. In the braking process, the electric motor can be automatically converted into a generator to realize energy reuse during braking and deceleration. Some studies have shown that the same crude oil is smelted and sent to the power plant for power generation. After charging the battery and driving the battery by the battery, the energy utilization efficiency is higher than that of the refined gasoline, and then it is higher by the gasoline engine driving the car. Therefore, it is beneficial to save energy. And reduce carbon dioxide emissions.
Road Roller is an important engineering vehicle that is considered necessary for the roads and highway constructions and is used for the compaction of dirt, gravel, concrete, and asphalt. In landfill compaction too, road roller has great utility. The size vary according to the usage. Its size vary from simple drum with a handle, to a size of many tonnes.
Hydraulic Road Roller,Mini Hydraulic Road Roller,Static Three Wheel Roller,Double Drum Road Roller
Shandong Shantui Construction Machinery Import & Export Co.,Ltd. , https://www.bulldozers.pl