an axial fan is a type of fan that causes gas to flow through it in an axial direction, parallel to the shaft about which the blades rotate. the flow is axial at entry and exit. the fan is designed to produce a pressure difference, and hence force, to cause a flow through the fan.factors which determine the performance of the fan include the number and shape of the blades.
the belt problem is a mathematics problem which requires finding the length of a crossed belt that connects two circular pulleys with radius r 1 and r 2 whose centers are separated by a distance p.the solution of the belt problem requires trigonometry and the concepts of the bitangent line, the vertical angle, and congruent angles
voxeljet ag, which is based in friedberg bayern near augsburg , is a manufacturer of industrial 3d printing systems.the company has been listed on the new york stock exchange since its ipo in the year 2013. besides the development and distribution of printing systems, voxeljet ag also operates service centers for the on-demand manufacture of molds and models for metal casting in germany .
a standard flexible intermediate bulk container can hold 500 to 1,000 kg 1,100 to 2,200 lb and manufacturers offer bags with a volume of 285–2,830 litres 10–100 cu ft . in addition to the above materials, flexible ibcs can also be made of fiberboard, wood, aluminum, and folding plastic. folding ibcs are also made of heavy plastic.
in the practical design of primarily round structural process ductwork in the cement, lime and lead industries, the duct size involved ranges from 18 inches 45 cm to 30 feet 10 m . the air temperature may vary from ambient to 1000 f 515 c . process ductwork is subject to large loads due to dust buildup,.
the lviv tram ukrainian: львівський трамвай, translit.: l’vivs’kyi tramvai is an electric tramway in lviv, ukraine.it is the only tram system in the western ukraine, the largest among the narrow-gauge tram systems in ukraine. from 1880 to 1908, the trams used horse-dn system, from 1894 however, they were electric.
metrovalencia is a modern amalgamation of former feve narrow gauge diesel and electric operated suburban/regional railways. it is a large suburban network that crosses the city of valencia, with all trains continuing out to the suburbs.it also has destinations on lines that make it more closely resemble commuter trains.the unique system combines light railway, metro and several tram operations .
the caf urbos 3 is the successor of the urbos 2; all new sales are of urbos 3. the standard variants, the urbos 100 and urbos 70, have either a or 70% low floor design, respectively, and a maximum speed of 70 kilometres per hour 43 mph . the tram type is offered in meter gauge and standard gauge and allows for a tram width of 2,300, 2,400 or 2,650 mm 7 ft 7 in, 7 ft 10 in or 8 ft 8 in .
traditionally, the gauge of the national railway in spain, now managed by adif, is 1,668mm or 5 foot, five and five-eights inches, known as iberian gauge.this gauge originally 1,674mm but then reduced slightly to allow interoperability with portugal was decided upon by a parliamentary committee, after a report known as the informe subercase named for its principal author in 1844.
in rail transport, track gauge or track gage is the spacing of the rails on a railway track and is measured between the inner faces of the load-bearing rails.. all vehicles on a rail network must have running gear that is compatible with the track gauge, and in the earliest days of railways the selection of a proposed railway's gauge was a key issue.
the primary region where russian gauge is used is the former soviet union cis states, baltic states, georgia and ukraine , mongolia and finland, with about 225,000 km 140,000 mi of track. russian gauge is the second most common gauge in the world, after 1,435 mm 4 ft 8 1 ⁄ 2 in standard gauge.
crich tramway apparently the first metre-gauge railway in the world citation needed butts tramway, butts extension tramway, lindal moor tramway, eure pits tramway coherent group of lines serving iron ore mines near dalton-in-furness, cumbria, built 1849–1862 united states: sierra lumber company railroad.
the ghent tramway network dutch: de gentse tram is a network of tramways forming part of the public transport system in ghent, a city in the flemish region of belgium, with a total of three lines 1, 2 and 4 .since 1991, the network has been operated by de lijn, the public transport entity responsible for buses and trams in flanders.. as of the end of 2008, the network had 40 hermelijn trams .
a variable gauge system allows railway vehicles in a train to travel across a break of gauge caused by two railway networks with differing track gauges. for through-operation, a train must be equipped with special bogies holding variable gauge wheelsets containing a variable gauge axle vga .
narrow gauge railways of 610 mm 2 ft gauge have smaller wagons that do not readily carry iso containers, nor do the 30-foot 9.14 m long and 7-foot 2.13 m wide wagons of the 762 mm 2 ft 6 in gauge kalka-shimla railway. wider narrow gauge railways of e.g. 914 mm 3 ft and 1,000 mm 3 ft 3 3⁄8 in .