Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves
The compression ratio is the ratio pressure of compressed air to pressure of free air
Dry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.
Density and specific volume of air varies with elevation above sea level.
Air density at pressure ranging 1 to 10 000 bara (14.5 - 145000 psi) and constant selected temperatures.
Online calculator, figures and tables showing density, specific weight and thermal expansion coefficients of air at temperatures ranging -100 to 1600 °C (-140 to 2900 °F) at atmospheric and higher pressure - Imperial and SI Units.
Diffusion coefficients (D12) for gases in large excess of air at temperatures ranging 0 - 400 °C.
Online calculator, figures and tables with dynamic (absolute) and kinematic viscosity for air at temperatures ranging -100 to 1600°C (-150 to 2900°F) and at pressures ranging 1 to 10 000 bara (14.5 - 145000 psia) - SI and Imperial Units.
Dry air is a mixture of gases where the average molecular weight (or molar mass) can be calculated by adding the weight of each component.
Prandtl number for air vs. temperature and pressure.
Properties of air change along the boiling and condensation curves (temperature and pressure between triple point and critical point conditions). An air phase diagram included.
Figures and tables with isobaric (Cp) and isochoric (Cv) specific heat of air at constant temperature and pressure ranging 0.01 to 10000 bara
Online calculator with figures and tables showing specific heat (Cp and Cv) of dry air vs. temperature and pressure. SI and imperial units.
Speed of sound in air at standard atmospheric pressure with temperatures ranging -40 to 1000oC (-40 to 1500oF) - Imperial and SI Units.
Online calculator with figures and tables showing air thermal conductivity vs. temperature and pressure. SI and imperial units.
Figures and tables withdry air thermal diffusivity vs. temperarure and pressure. SI and Imperial units.
Thermal properties of air at different temperatures - density, viscosity, critical temperature and pressure, triple point, enthalpi and entropi, thermal conductivity and diffusivity and more.
Air volume vs. temperature correction factor compared to Normal Air Conditions
Yearly power cost for operating an air compressor
Inlet pipe size and maximum air flow
Discharging air volume through hoses at pressures ranging 30 - 90 psi
Thermodynamic properties of air at low pressures - imperial units
Specific Heat Ratio of air at temperatures from -40 - 1000oC (-40 - 1500oF) at standard atmospheric pressure - Imperial and SI Units
Average air volume requirement
Online calculator with figures and tables showing density and specific weight of ammonia for temperatures ranging -50 to 425 °C (-50 to 800 °F) at atmospheric and higher pressure - Imperial and SI Units.
Copper tube dimensions used for medical gases
Perfect gas and Boyle's law
A perfect gas - volume and temperature
Oxidizers vs. inert vs. flammable gases.
Pipe line sizing compressed air
A glossary of terms commonly used for compressed air
Pressure loss in air hoses at various pressure
Required supply of compressed air to laboratories
Calculate pressure drop in compressed air pipe lines - metric and imperial units
Pressure drop in compressed air pipe lines - nomograph diagram
Air pipe lines at pressure 100 psi
Saturation pressure and maximum water content in compressed air.
Capacities of compressed air pipelines - applied pressure ranging 5 - 250 psi (0.5 - 17 bar)
Pressure drop in compressed air pipe lines
Fittings in compressed air pipe lines - equivalent length pressure drop
Pressure drop in compressed air pipelines - applied pressure 50, 100 and 150 psi
Pressure drop in compressed air pipe lines
Compressed air is used for power tools, instrumentation, processing and for breathing
Calculating air receivers
Calculate the storage volume of compressed gas or air
An online control valve - Cv - calculator for gases
Critical temperatures and pressures for some common substances - air, alcohol, ether, oxygen and more
Gibbs'-Dalton's law of partial pressure
Dimensions of EN 1057 Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications
Seamless, round copper tubes for air conditioning and refrigeration piping systems
Copper and copper alloys. Seamless, round copper tubes for medical gases or vacuum
Online database with gas properties
Densities and molecular weights of some common gases - acetylene, air, methane, nitrogen, oxygen and others ..
Gas marks on gas ovens and the heat or temperature developed
Special care must be taken for gas mixtures when using the ideal gas law, calculating the mass, the individual gas constant or the density
Materials approved for gas pipes
Clearance tolerance per roof slope for gas vent terminations - vent caps
Flame and explosion limits for gases like propane, methane, butane, acetylene and more.
Specific gravity of air, ammonia, butadiene, carbon dioxide, carbon monoxide and some other common gases
Online air compressor horsepower calculator
Carrying capacity of house gas pipes - in imperial and metric units
Enthalpy, Entropy and Internal Energy of Carbon Dioxide gas
LNG or Liquefied Natural Gas.
Apartments gas pipe service lines
Liquefied Petroleum - LP - gas properties
LPG or Liquefied Petroleum Gas.
Required capacities of relief valves on LPG vaporizers and tanks
Piping systems for medical gases
Convert between liquid and gaseous LNG and Methane units.
Density of the mix of dry air and water vapor - moist humid air.
Sizing low pressure natural gas pipe lines - imperial units
Sizing low pressure natural gas pipe lines - Metric values
Sizing pipes for natural gas - pressures above 5 psi (35 kPa)
Calculate the capacities and dimensions of natural gas pipe lines
Natural gas consumption for equipment like boiling pans, ovens, cookers, kettles and more.
Use of natural gas in laboratory outlets
Multiple apartments and natural gas diversity and demand
Natural gas is used extensively in residential, commercial and industrial applications
Different types of natural gas meters and their capacities
Burial dept and minimum cover of underground natural gas pipes
Enthalpy, internal energy and entropy of Nitrogen as ideal gas
The van der Waals constants for more than 200 gases used to correct for non-ideal behavior of gases caused by intermolecular forces and the volume occupied by the gas particles.
Discharging air volume through nozzles
Natural gas capacities for orifices
Enthalpy, internal energy and entropy of oxygen as ideal gas
Pascal's laws relates to pressures in fluids
Calculating pneumatic cylinder velocity
Pneumatic air cylinders - air pressure and force exerted calculator
Introduction to pressure - psi and Pa - online pressure units converter.
Convert from kPa to psi and inches of Water and Mercury
Latent heat when propane vaporize
Energy content and specific gravity of propane air mixtures
Evaporation pressure for propane butane mix vs. temperature
Sizing low pressure propane gas pipe lines - Imperial units
Sizing propane gas pipe lines - for pressures above 5 psig (35 kPa)
Comparing pumps, compressors, blowers and fans
Common terms rating air flow capacity are ICFM, FAD, ANR, SCFM or nl/min
Calculating length of safety valves vent pipes
Maximum free air relief capacity of safety valves
Calculate relief valves in gas and vapor systems
Actual air compressor capacity (ACFM) versus standard air capacity (SCFM) and inlet air capacity (ICFM)
Air volume used by single-acting pistons
Sizing low pressure propane gas pipe lines - Metric units
Introduction and definition of vapor and steam enthalpy - specific enthalpy of saturated liquid, saturated vapor and superheated vapor
The relationship between volume, pressure, temperature and quantity of a gas, including definition of gas density.
Reciprocating, rotary screw and rotary centrifugal air compressors
The Universal and Individual Gas Constants in fluid mechanics and thermodynamics. Individual gas constants for the most common gases.
Vacuum is defined as air pressure below atmospheric pressure
Convert vacuum air volume to standard air volume
Vacuum pumps - calculating flow rate and required evacuation time
Measuring volume flow in vacuum
Vacuum pipes and pressure drops
Vacuum pipes - air velocity diagrams
Vacuum converting units - % vacuum - mm Mercury - psi - torr - micron - kPa
Capacities of vacuum pump exhaust pipes
Introduction to vapor and steam
Vapor and saturation pressure for some common liquids