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120–290 psi Pressure used in boilers of steam locomotives [citation needed] 1.1 MPa 162 psi Pressure of an average human bite [citation needed] 2.8–8.3 MPa 400–1,200 psi Pressure of carbon dioxide propellant in a paintball gun [64] 5 MPa 700 psi Water pressure of the output of a coin-operated car wash spray nozzle [58] 5 MPa 700 psi
Compressor characteristic is a mathematical curve that shows the behaviour of a fluid going through a dynamic compressor.It shows changes in fluid pressure, temperature, entropy, flow rate etc.) with the compressor operating at different speeds.
For example, halving a pipe's diameter would increase the pressure drop by a factor of = (e.g. from 2 psi to 64 psi), assuming no change in flow. Pressure drop in piping is directly proportional to the length of the piping—for example, a pipe with twice the length will have twice the pressure drop, given the same flow rate. [8]
Using metric units, the volumetric flow rate of a nozzle is given by =, [1] [2] where q is the flow rate in litres per minute ( l/min ), p is the pressure at the nozzle in bar and K is the K-factor is given in units of (/) /.
Despite having the dimension of pressure, MEP cannot be measured. [2] When quoted as an indicated mean effective pressure (IMEP), it may be thought of as the average pressure acting on a piston during the different portions of its cycle. When friction losses are subtracted from the IMEP, the result is the brake mean effective pressure (BMEP).
Use of the kilogram-force per square centimetre continues primarily due to older pressure measurement devices still in use. This use of the unit of pressure provides an intuitive understanding for how a body's mass, in contexts with roughly standard gravity, can apply force to a scale's surface area, i.e. kilogram-force per square (centi-)metre.
Excessive pressure, on the other hand, will lead to impact-breaks, decreased braking performance, and increased wear on the center part of the tread surface. Tire pressure is commonly measured in psi in the imperial and US customary systems, bar, which is deprecated but accepted for use with SI, or the kilopascal (kPa), which is an SI unit.
100 psi 0.965 120 psi 0.992 132 psi 1.02 120 psi 1.00 100 psi NA* 80 psi 0.984 60 psi 0.945 40 psi 0.906 20 psi 0.846 0 psi 0.591 Taylor II 30 varnished silicon steel foils each of thickness 0.0172 inches (0.4368 mm); density 7.51 g cm −3; measured near a temperature of 358.2 K under pressure in the range 0 — 128 psi: 0 psi 0.433 w m −1 K ...