Hello, Chris Generator will answer for you "How many kilowatts can a 200 kilowatt generator produce on a plateau 4 kilometers above sea level?" :
Engine power output decreases as altitude increases. , the output power of the generator set also decreases, and the power decreases by 10% for every 1,000 meters of altitude increase.
That is, at normal temperature (40 degrees), the power generated by a 200 kW generator at an altitude of 4,000 meters should be: 200*(1-0, 4)=120 KW
< p>Of course, the principle is that your generator is operating normally. The atmosphere at high altitude is thin, and the mixed fuel supplied to the engine through the main carburetor nozzle cannot be completely burned due to the relatively thin air. this time, the engine speed may be unstable or even unable to start, and the muffler may leak black smoke. The engine must foOperate correctly by replacing the correct main jet.The peculiarity of Mazda's start-stop system is that when the engine is stopped, it uses various methods to make a cylinder exactly complete the compression stroke and stop near neutral high. The cylinder is already full of fresh fuel. The air is also compressed, and upon startup, fuel is directly injected into it and ignited to begin burning. This significantly reduces the load on the starter and the starting process is smoother than relying on the starter alone.
Traditional automatic start and stop. It's a process similar to this: surviving. Detection, automatic shutdown. Then start and start the engine with the starter. Frequent starts can really damage the battery. But this is not the case at Mazda. When the vehicle decelerates to a stop, the engine does not simply stop. The ECU contwill role the stopping phase of the engine through the camshaft position sensor, so that when the engine is stopped, it is at the position of the explosion stroke after the compression stroke of a certain cylinder . The electronic throttle and generator are responsible for stopping the engine at a certain position. Vacuum suction from the intake manifold after closing the throttle and anti-drag resistor from the generator during power generation brake the crankshaft to a stop.
This way you only need to start the engine to push the crankshaft to turn a little further, inject fuel, ignite and rely on the energy of the explosion stroke of the cylinder to restart the engine. Mazda calls this a “combustion start” restart method. This solves the problem that the start-stop system relies solely on the starter motor to start, which consumes too much power.energy. It also reduces noise and vibration when the engine starts, and the starting time will also be effectively shortened. tested by Mazda itself is 0.35 seconds.
There are two disadvantages. First, it won't work if the air pressure is low to a certain level, which seems to be above 1500 m altitude. This may be because when the air pressure is low, the air density in the cylinder is low, and to a certain extent it is not enough to start the engine. The second is that the extinguishing time is limited, because after a certain time the air in the cylinder escapes from the small spaces between the piston ring and the valve. So it can stop for about a minute and a half at most, then the engine will start again.