1 horsepower (over the course of an hour) is equivalent to 2,545 BTU (British thermal units). If you took that 746 watts and ran it through an electric heater for an hour, it would produce 2,545 BTU (where a BTU is the amount of energy needed to raise the temperature of 1 pound...
Electric motor: The electric motors on hybrid cars are very sophisticated. Advanced electronics allow it to act as a motor as well as a generator. For example, when it needs to, it can draw energy from the batteries to accelerate the car. But acting as a generator, it can slow the car...
One way, known as a parallel hybrid, has a fuel tank that supplies gasoline to the engine and a set of batteries that supplies power to the electric motor. Both the engine and the electric motor can turn the transmission at the same time, and the transmission then turns the wheels. ...
The manholes in question are already filled with an expanding gas, and any spark is going to expand it further. In a combustion engine, the explosion causes the gas to push up on a piston. In a manhole, the explosion pops the heavy manhole cover right out of the ground. If it were p...
In 1859, Lenoir created an engine that used a mixture of coal, gas and air, ignited by an electric spark. His engine was the first commercially successful internal combustion engine, used primarily in stationary applications. Although it had limited efficiency, it was a crucial stepping stone in...
One of the easiest heat recovery applications to implement is space heating, which can recoverup to 94 percentof a compressor system’s input power. You can see that many industries could easily make the seemingly high cost of producing on-site power with air compression a low-cost opportunity...
Now let's look at all the parts that work together to make this happen, starting with the cylinders. Basic Engine Parts Figure 2. Inline: The cylinders are arranged in a line in a single bank. HowStuffWorks The core of the engine is the cylinder, with the piston moving up and down...
To convert kW to KVA you say kW/Power factor=KVA. The kVA is a measure of the apparent power while the kW gives the actual power running through the...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your...
larger conductors and breakers than needed is a wasted expense. It is also important to realize that even at low horsepower requirements a motor still draws a relatively large amount of current. For example, a motor operating under no load at all still draws abo...
Figure 8. Overgreasing caused inside of motor to fill with grease. Overheating due to excess grease– The balls of a bearing act as tiny viscosity pumps which roll on a small amount of oil film between the balls and the race. Too much volume will cause the elements to churn the grease,...