2 results about "Volume fraction" patented technology

In chemistry, the volume fraction φᵢ is defined as the volume of a constituent Vᵢ divided by the volume of all constituents of the mixture V prior to mixing: ϕᵢ=Vᵢ/∑ⱼVⱼ Being dimensionless, its unit is 1; it is expressed as a number, e.g., 0.18. It is the same concept as volume percent (vol%) except that the latter is expressed with a denominator of 100, e.g., 18%. The volume fraction coincides with the volume concentration in ideal solutions where the volumes of the constituents are additive (the volume of the solution is equal to the sum of the volumes of its ingredients).