how does aircraft engines suck air without filters while gas engine at power station need a strong filtration?
375519
Jet engines are tested for "bird ingestion" (using dead or anesthetized birds) as part of engine qualification (perhaps not for similar models).  The engines must remain intact.  Airplanes fly at very high elevations where the air is cleaner than at a power plant subject to wind storms.  A power plant can afford the extra weight of a filter system that would perhaps not fly.  An airliner once flew through the dust plume of a volcano (at night?) which snuffed out all (four?) engines at high elevation.  Luckily, the engines restarted after considerable effort on the part of the pilots.  Engine designers are concerned with the intake of fine dust into an engine that could perhaps get into bearings, etc.  Experience dictates adequate solutions to the problem.  Each engine design has a TBO (time between overhaul) that is lengthened with experience and complete dismantling of the engine allows evaluation of the effects of dust, etc. to maintain safety.
130244
Well nowadays all the aircrafts use turbo engines to power them. These engines are 'air breathing' engines,i.e., they pull in air, compress it, add fuel to it and then burn the air-fuel mixture to derive power. After a certain altitude the density of air decreases. Therefore the engines do not get sufficient air to 'breathe'(thats to work). Hence an aircraft's altitude is limited to a certain value.
252267
The power comparison is about 8,000 hp(top fuel) to about 60,000hp(boeing) The fuel consumption comparison is apples to oranges. The boeing uses heavy jet propellant basically diesel fuel while the top fuel uses alchohol and nitro methane. it would be like comparing drinking water versus eggnog... What's the point?
665386
An air compressor delivers high pressure air to combustion chambers where fuel is injucted and burns increasing the energy of the airstream.  The energetic gas stream exits out the rear of the engine producing thrust because that is the path of least resistance.  The exiting gas also passes through a gas turbine that extracts some of the combustion energy to drive the compressor sustaining the cycle.
444563
There are tons. Water filtration plants use catalysts, the exhaust on your car uses a catalyst. They are used extensivly due to their ability to readily interact and combine with complex organics.
179256
Steam turbines have several controlled nozzles which connect to the superheated steam source from the boiler and superheater.  The number of nozzles and steam flow rate through the nozzles can control the power output of the turbine.  The momentum of the steam gas hitting the turbine (in stages) as it expands spins the turbine creating shaft power.\n\nOne type of gas turbine is the exhaust side of a turbocharger.  Hot exhaust gas under pressure is pumped by the engine into the the outer ring of the turbine.  The gas is still expanding, and spins the turbine providing shaft power to drive the air compressor side.  \n\nThe type of gas turbine common to power plants and airplanes has a compressor section, combustion chamber, and expansion section.  The expansion and compression turbine sections have moving vanes and stationary vanes to direct the gases and extract the most work possible from the setup.  Atmospheric air is compressed by the compressor and fed at elevated pressure to the combustion chamber where fuel is injected and an ingnition source keeps the flame lit.  The exhaust spins the expansion section and exits through the rear of the engine.
574303
The amount of air that does not get compressed and sent through the turbine of a turbofan motor. That's why motors on heavy aircraft such as commuter and cargo aircraft are so much bigger during the first fan stages than say those of fighter aircraft which require less bypass and more direct thrust.
119197
The system uses high voltage to ionize molecules in the air mostly oxygen to ozone. Ions have an electric charge sort of like static electricity they attract dust particles and create a heavier particle that falls out of the air. also dust particles are attracted to the high voltage plates much like your tv screen attracts dust.
370311
Is it a gas or a Diesel?  Thie easiest way to think about HP. is this:  You need either air to go faster into the engine...or faster out of the engine.  Easy inexpensive fixes could be a cold air intake or a throttle body spacer.  These would allow air to enter your engine faster.  Another option is a more free flowing exhaust...sucking air out faster.  If you want to spend more money..a computer chip or programmer (you have to run premium gas if you have a gas vehicle)..or supercharger or turbo.  These are more expensive than the options above
627905
The principle of a gas scrubber is to remove impurities out of the gas stream.  The scrubber removes other gases such as CO2, H2S, Nitrogen and water vapor.  They often use absorption or other techniques to remove the unwanted scavanger gases.  All gas that is transported, must be treated to pipeline grade.  That is it must be treated to meet certain standards of purity--moisture content, btu, hazardous gases, etc.  Scrubbers are designed based on the gas analysis for a particular gas field.  For example, gas generated at a wastewater treatment plant will require the removal of CO2 and H2O.  Other gas fields may require the removal of other impurities.
778847
Depends on what you feed it.  It usually uses the ambient gas which is air and all it's doing is pressurizing it.  But if it's a closed system  compressor like the one on your frigged, then it would be freon or some other refrigerant.  If you took an air compressor to mars, it would just compress whatever gas was in the martian atmosphere.  You would not be able to breath it.
1095950
No Smoke!  They are called contrails(condensation trails)\n\nContrails are created in one of two ways:\n\n1. First, the airplane's exhaust increases the amount of moisture in the air, which can push the water content of the air past saturation point. This causes condensation to occur, and the contrail to form.\n\nAviation fuel such as petrol/gasoline (piston engines) or paraffin/kerosene (jet engines) consists primarily of hydrocarbons. When the fuel is burned, the carbon combines with oxygen to form carbon dioxide; the hydrogen also combines with oxygen to form water, which emerges as steam in the exhaust. For every gallon of fuel burned, approximately one gallon of water is produced, in addition to the water already present as humidity in the air used to burn the fuel. At high altitudes this steam emerges into a cold environment, (as altitude increases, the atmospheric temperature drops) which lowers the temperature of the steam until it condenses into tiny water droplets and/or desublimates into ice. These millions of tiny water droplets and/or ice crystals form the contrails. The temperature drop (and therefore, time and distance) the steam needs to condense accounts for the contrail forming some way behind the aircraft's engines.\n\n2. The wings of an airplane cause a drop in air pressure in the vicinity of the wing (this is partly what allows a plane to fly). This drop in air pressure brings with it a drop in temperature, which can cause water to condense out of the air and form a contrail.\n\nExhaust contrails tend to be more stable and long-lasting than wing-tip contrails, which are often disrupted by the aircraft's wake and are commonly very short-lived.
548339
Horse power can be used for both it is a value given to the amount of energy needed to perform (x) amount of work per second.\n  I believe you are more interested in thrust, which is the forward propulsion of the jet engine.  \n  That would go more towards ft/lbs.  \n\nOne extra little known tid bit.  The super jet engines like on the C-5 military transport uses some water injection on take off.  This is what causes the dark exhaust you see. \n\nIf I remember correctly when water flashes to steam it has a 1:26 pressure expasion rate.  \nAs you can see this has a significant impact on the amount of thrust for the engine as well as a cooling effect.\n\nAnd of course the lift is all by design of the wing.  If you took the wings off of a plane it would never get off the ground...  \n\n    But it would make one fast car !!!
292652
Oil refineries pollute the air by releasing or burning gaseous by-products of the refining process, such as naphtha, petroleum gas, sulfur, etc.  They also pollute the air by burning fuel to create heat and electricity which are used to refine oil.
365307
Actually, a vacuum cleaner does not suck.  Air is evacuated from inside the cleaner and air pressure of 14 pounds per square inch outside the cleaner is forced up the hose to equalise the pressure difference.  The removal of the air from inside the cleaner is performed at a greater rate than the air rushing up the hose can refill the the cleaner.
827807
Here are a couple of references, one positive (opinion, not ion!), one negative. The negative opinion article prefers HEPA air filters.
59561
there is a hole in the end of the nozle.when that hole fall below the gas line, pump senses stop of air flow and stops pumping gas. (when you pump gas in you are also pushing air out.) Thats why if you pull the nozzle out some you can get more gas in. You are moving the hole above the gas line.