Alternative power generators produce electricity from renewable energy sources, such as wind, flowing water, solar energy and biomass, which create less environmental damage and pollution than fossil fuels.
Fuel cells produce electricity and heat electrochemically by combining oxygen from the air with a fuel, preferably hydrogen, from methanol, natural gas, or petroleum. Reformers are often used in conjunction with fuel cells.
Industrial winches are pulling devices that use a wire, rope, cable, strap or web to move heavy loads. They typically use a drum or reel for line storage and are either manually operated or powered by an electric, pneumatic, or hydraulic motor.
Property testers are used to determine various physical properties of samples, including cloud point, distillation, flash point, freezing point, melting point, pour point, and vapor pressure.