What should I do if the car cannot start due to water accumulation in the car after rain? ,
Many car owners try not to drive on rainy days, because once the car gets water, the car stalls and cannot start. When the car cannot start after being flooded with water, we must first determine the situation after the car is flooded with water.
If the car has been soaked in water and then sent to the repair shop for repair in time, the car engine will not have much trouble. At this point we just need to clean the water inside. engine.
If the car stalls when driving over a flooded road, preventing the car from starting, we need to disassemble the car's engine to find out where the problem is. Then take the right medicine and the car will start normally.
When the car stalls afterwaded in water, do not start the engine a second time. If you start the engine at this time, the crankshaft will drive the piston up and the piston connecting rod will be bent. under the strong thrust, causing irreversible damage to the engine.
When the car stalls in the water, we must first turn off the key, then push the car to the side of the road and call the emergency phone to wait for help.
So, how can you prevent the car from stalling when driving over a waterlogged road? First of all, we need to measure the water depth before the car enters the water. Fording height should not exceed 1/2 wheel. If the water depth exceeds the radius of the wheel, we should not continue to rush and drive in another direction.
When the car wades through the water, try to keep the speed below 20 kilometers per hour. This is to prevent the car from accaccelerate too fast and cause water to splash into the exhaust hole, causing the car to stall. .
In addition, when a car wades into water, you must hold the steering wheel firmly and maintain a certain safe distance from the car in front of you. When the car leaves the waterlogged road, we have to stop and check if the tires are damaged. If there is any damage, we must replace it in time.
When a car breaks down or gets soaked in water, you don't have to worry about repair costs. If you purchase additional water insurance, the insurance company will fully compensate your actual losses. However, if the vehicle causes secondary engine damage due to secondary ignition after wading in water and stalling, the insurance company will refuse to pay compensation. Therefore, you should not restart the engine when the car stalls.
In addition, when you seek compensation from an insurance company, you must inform the insurance company within 48 hours of the accident, otherwise, after this period, the insurance company risks to refuse to pay. Therefore, everyone must notify the insurance company in time to deal with it. It is good to recover some losses.
Driving on a rainy day is very dangerous, especially when crossing waterlogged roads. Various accidents can happen, so everyone should drive carefully.
Because the operating efficiency of steam cars is too low
The principle of traditional steam cars is to convert the internal energy of fuel into energy internal water vapor, then use water to make the steam expand to do the work, converting the internal energy into mechanical energy. Due to low efficiency, heavy structureand other defects of steam engines, steam.Cars were replaced by gasoline, diesel and other internal combustion vehicles.
A steam engine cannot be separated from a boiler, and the whole device is bulky and cumbersome; the pressure and temperature of the new steam cannot be too high, the exhaust pressure cannot be too low, and the thermal efficiency is difficult to improve; it is an inertia reciprocating machine. The increase in speed is limited; the working process is discontinuous, the steam flow is limited and the power increase is also limited.
Take the example of steam locomotives. Only part of the heat of combustion of the fuel in the boiler of the steam engine is converted into thermal energy of the steam. Boiler efficiency is typically 50% to 80%. The steam works in the turbine, and the efficiency of the turbine is only 10 to 15%.
In addition, in transmitting force from the turbine to the circumference of the impeller, the mechanical efficiency is 80% to 95%. Therefore, the maximum thermal efficiency of a steam locomotive is only 8-9% and fuel is still consumed when parking at a station, preparing and staying in the locomotive depot, so that the actual thermal efficiency is only 5-7%.