mixed flow compressor
71Professional diving — Hardhat diving redirects here. Often, hardhat diving is used to specifically mean diving in the old type Standard diving dress. A US Navy diver at work. The umbilical supplying air from the surface is clearly visible Professional diving is a type …
72Mechanical fan — Household electric box fan with a propeller style blade A mechanical fan is a machine used to create flow within a fluid, typically a gas such as air. A fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it… …
73Activated carbon — Activated carbon, also called activated charcoal, activated coal or carbo activatus, is a form of carbon that has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical reactions …
74Tesla turbine — The Tesla turbine is a bladeless centrifugal flow turbine expander patented by Nikola Tesla in 1913. It is referred to as a bladeless turbine because it uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional …
75Trimix (breathing gas) — Trimix is a breathing gas, consisting of oxygen, helium and nitrogen, and is often used in deep commercial diving and during the deep phase of dives carried out using technical diving techniques.cite book |title=Bennett and Elliott s physiology… …
76Forced induction — is a term used to describe internal combustion engines that are not naturally aspirated. Instead, a gas compressor is added to the air intake, thereby increasing the quantity of oxygen available for combustion. This compressed air is normally… …
77Solar air conditioning — refers to any air conditioning (cooling) system that uses solar power. This can be done through passive solar, photovoltaic conversion (sun to electricity), or solar thermal energy conversion. The U.S. Energy Independence and Security Act of… …
78Centrifugal pump — Warman centrifugal pump in a coal preparation plant application A centrifugal pump is a rotodynamic pump that uses a rotating impeller to create flow by the addition of energy to a fluid. Centrifugal pumps are commonly used to move liquids… …
79Bourke engine — The Bourke Engine was designed by Russell Bourke in the 1920s, as an improved two stroke engine. Despite finishing his design and building several working engines, the onset of World War II, lack of test results,[1] and the poor health of his… …
80Black powder in gas pipelines — Black powder is a solid contamination in finished product pipelines. Black powder collects in gas piping that are mostly mill scale, from new sales gas pipeline, flash rust from hydrotest water, post internal pipeline corrosion, and could be… …
