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2. Liquefied natural gas - Wikipedia

   en.wikipedia.org/wiki/Liquefied_natural_gas

   The heating value depends on the source of gas that is used and the process that is used to liquefy the gas. The range of heating value can span ±10 to 15 percent. A typical value of the higher heating value of LNG is approximately 50 MJ/kg or 21,500 BTU/lb. [2] A typical value of the lower heating value of LNG is 45 MJ/kg or 19,350 BTU/lb.

3. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   Liquid-column gauges consist of a column of liquid in a tube whose ends are exposed to different pressures. The column will rise or fall until its weight (a force applied due to gravity) is in equilibrium with the pressure differential between the two ends of the tube (a force applied due to fluid pressure).

4. LTM 51 - Wikipedia

   en.wikipedia.org/wiki/LTM_51

   This buffer consisted of a second piston working in a liquid filled cylinder the halves of which could be connected through a bypass valve. In order to change direction and set cut-off, dipping the reversing lever (either forward or backward as required) would momentarily permit steam to the servo motor and at the same time open the bypass valve.

5. Liquid fuel - Wikipedia

   en.wikipedia.org/wiki/Liquid_fuel

   Kerosene is used in kerosene lamps and as a fuel for cooking, heating, and small engines. It displaced whale oil for lighting use. Jet fuel for jet engines is made in several grades (Avtur, Jet A, Jet A-1, Jet B, JP-4, JP-5, JP-7 or JP-8) that are kerosene-type mixtures. One form of the fuel known as RP-1 is burned with liquid oxygen as rocket ...

6. Filling station - Wikipedia

   en.wikipedia.org/wiki/Filling_station

   Fuel dispensers are used to pump gasoline, diesel, compressed natural gas, compressed hydrogen, hydrogen compressed natural gas, liquefied petroleum gas, liquid hydrogen, kerosene, alcohol fuels (like methanol, ethanol, butanol, and propanol), biofuels (like straight vegetable oil and biodiesel), or other types of fuel into the tanks within ...

7. Orders of magnitude (pressure) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)

   1.5 psi Decrease in air pressure when going from Earth sea level to 1000 m elevation [citation needed] +13 kPa +1.9 psi High air pressure for human lung, measured for trumpet player making staccato high notes [48] < +16 kPa +2.3 psi Systolic blood pressure in a healthy adult while at rest (< 120 mmHg) (gauge pressure) [44] +19.3 kPa +2.8 psi