The chief difference between a pneumatic system and a hydraulic system is the media used to transfer power. Pneumatic systems use compressed gases, such as air or nitrogen, to transfer power. Hydraulic systems use fluids, such as oil or water, to transfer power from one point to another.Know More
A pneumatic system is typically less expensive to design, install and implement than a similar hydraulic system. The reason for the lower cost is that pneumatic systems operate at much lower pressures. The lower pressures used in pneumatic systems allow the components used in these systems to be made of much less-costly materials than are required for a hydraulic system. Although pneumatic systems may be less expensive to design and install due to their relative simplicity and lower pressures, they are often more expensive to operate due to the high energy consumption of air compressors.
Other differences between pneumatic and hydraulic systems include the cleanliness of the system, the complexity of maintenance and the operating pressure. Pneumatic systems are typically cleaner than hydraulic systems. If a pneumatic system leaks, nothing is vented but compressed gases. If a hydraulic system leaks, the fluid used in that system creates a housekeeping problem. Hydraulic systems do have an advantage of pneumatic systems because of the high pressures that can be utilized. The higher pressure of a hydraulic circuit allows a smaller actuator to produce more work than a similar-sized actuator in a pneumatic system.Learn more about Manufacturing
Pulley drive systems use wheels and belts to transfer power from an engine or other locomotive force to an axle where it can do work. Pulley drive systems allow engineers to change the rotating speed and torque based on what the target source requires. Many automobiles use pulley drive systems to power the alternator and air conditioner.Full Answer >
Silica sand has many uses, including making glass. It is the key ingredient in windows, jars and bottles. Manufacturers use it in light bulbs, florescent tubes, televisions and computers. A family commonly uses silica on the dinner table in the forms of leaded crystal, drinking glasses and dishes, according to the Material Products Association.Full Answer >
As of 2014, the GMC Savana and its twin, the Chevrolet Express, are manufactured in Wentzville, Missouri. The GMC Savana was also manufactured in Wentzville when it was introduced in 1996.Full Answer >
The element iron is converted to the alloy commonly called steel by controlling the percentage of carbon in the product, which is usually 0.25 percent to 1.5 percent of the final alloy content. The first economical method for producing steel in large quantities was the Bessemer furnace, which was invented in the mid 1850s and introduced a stream of air to the molten metal that enabled better control over the carbon content. In the modern process, high-purity oxygen is pumped into the furnace instead, which avoids adding the impurities found in ordinary air.Full Answer >