FLUIDAT on the Net Flow and Physical Properties Calculations

FLUIDAT is a collection of routines to calculate physical properties of gases and liquids, which are available by the FLUIDAT on the Net website.

FLUIDAT makes use of intrinsic fluid data like molecular mass, critical properties, boiling point, and dipole momentum. Users can calculate fluid properties at a specific temperature and pressure. Also, users can derive properties of mixtures consisting of up to 15 components. Over 1,800 fluids are available in the FLUIDAT software. Mainly, this consists of hydrocarbons along with most well known inorganic fluids (gases) such as air, argon, and helium. Users can perform the search by chemical formula, CAS Registry Number, or by the name of the fluid.

Typical Functions of FLUIDAT

• find fluids by name, formula, or CAS-number
• display intrinsic properties of fluids
• calculation of fluid properties
• vapor pressure line generation
• gas and liquid conversion factors
• orifice calculation for mass flow controllers
• pressure drop across flow meters and filters
• calculation of operating conditions for CEM devices, the PSC Vapor Generation System, or Bronkhorst’s VDM vapor generation system
• create / edit / save mixtures
• Coriolis mass flow meter / controller sizing

Physical Properties

This program is not specifically for users of Bronkhorst (mass) flow meters and controllers. Users can calculate the following physical properties of liquids and gases:

• density
• viscosity, both kinematic and dynamic
• specific heat at constant pressure (C_p) and constant volume (C_v)
• thermal conductivity
• boiling point
• vapor pressure curves
• molecular mass
• heat of vaporization

Flow Calculations

This program offers the possibility to make a number of calculations for Bronkhorst (mass) flow meters and controllers. For example, it allows for the calculation of:

• Kv-values and orifice diameters for control valves
• pressure loss over particle filters for gases and gas mixtures