Which cycle is the most efficient of these for the same compression ratio a Otto cycle B diesel cycle?
Explanation: Otto cycle is more efficient than Diesel cycle for a given compression ratio. 6. For constant maximum pressure and heat input, the air standard efficiency of the gas power cycle is in the order.
What is air standard efficiency of Otto cycle?
The maximum pressure in the engine is around 55.2 Mpa and thermal efficiency of engine is around 66.2%. The thermal efficiency of otto cycle is function of compression ratio and ratio of specific heat.
How can you tell the difference between a 2 stroke and a 4 stroke?
Typically, a 2-stroke engine creates more torque at a higher RPM, while a 4-stroke engine creates a higher torque at a lower RPM. The 4-stroke engine is also much quieter, a 2-stoke engine is significantly louder and has a distinctive, high-pitched “buzzing” sound.
What happens when you run straight gas in a 2 stroke?
If you’ve put straight gas in the fuel tank, don’t start the engine. If straight gas is used, it can damage and ruin the piston and crankcase within a minute, as the gas doesn’t take long to burn out these sensitive parts. Drain the tank immediately into a separate fuel container.
Will a 2 stroke run on unleaded?
Two stroke engines are usually low compression engines — often around 7 or 8:1, so they run just fine on lower octane fuel. You CAN use high octane, but it’s not necessary. Unlike oils designed for four stroke engines, there are VERY few additives in two stroke oil as it is designed to burn as cleanly as possible.
How many miles does a 2 stroke last?
A current garden variety 600 twin engine in the popular trail/sport category can deliver up to 12,000 miles (19,000 kms) of reasonable use. Reasonable use includes using good quality injector oil, regular servicing of the exhaust valves and annnual clutch maintenance.
Can you fix a 2 stroke engine that ran straight gas?
You will most likely have to replace the piston and rings and hone or bore the cylinder to remove the scoring. Depending on how long it was run, you may also have to replace the crankshaft and rod bearings as they also require lubrication from the fuel.
What causes a 2 stroke engine to seize?
Seizure is caused when the piston expands faster than the cylinder and the clearance between the piston and cylinder is reduced. Tolerances are too tight. Boring a cylinder and not leaving enough piston clearance will cause a seizure every time.
How long can you run a 2 stroke engine without oil?
30 minutes
Can you Unseize a 2 stroke engine?
It’s very common to rebuild 2-Stroke engines that have been seized. Sometimes you can get away without rebuilding a seized 2-stroke engine if the damage isn’t too bad. It often never runs quite the same. The engine will simply stop (piston expands in the bore)… but will start again when it cools down.