vapor mass
1Vapor quality — Steam Engines use water vapor to drive pistons which effects work through movement. The quality of steam can be quantitatively described. Vapor quality is a quantitative description of the usefulness of a vapor to do work. x v=frac{v m}{l m + v… …
2Vapor-compression evaporation — is the evaporation method by which a blower, compressor or jet ejector is used to compress, and thus, increase the pressure of the vapor produced. Since the pressure increase of the vapor also generates an increase in the condensation temperature …
3Mass deacidification — is a term used in Library and Information Science for one possible measure against the degradation of paper in old books (the so called slow fires ). The goal of the process is to increase the pH of acidic paper on a large scale. Although acid… …
4Mass flow — Mass flow, also known as mass transfer and bulk flow, is the movement of material matter. In physics, mass flow occurs in open systems and is often measured as occurring when moving across a certain boundary characterized by its cross sectional… …
5Mass transfer — Part of Chemical engineering History Concepts Unit operations Unit processes Chemical engineer Chemical process Process integration Unit operation …
6vapor concentration — The mass of water vapor present per unit volume of space (i.e., the density of water vapor) usually expressed in grams per cubic meters, or gm/m3. The actual amount of water, by weight of water vapor, in a given volume of space. Also called… …
7Dynamic vapor sorption — (DVS) is a gravimetric technique that measures how quickly and how much of a solvent is absorbed by a sample: such as a dry powder absorbing water. It does this by varying the vapor concentration surrounding the sample and measuring the change in …
8Saturation vapor density — (SVD) is a concept closely tied with saturation vapor pressure. It is useful for getting an exact quantity of water vapor in the air from a relative humidity (RH). Given an RH percentage, the density of water in the air is given by RH * SVD =… …
9Chemical vapor deposition — DC plasma (violet) enhances the growth of carbon nanotubes in this laboratory scale PECVD apparatus. Chemical vapor deposition (CVD) is a chemical process used to produce high purity, high performance solid materials. The process is often used in …
10Moisture vapor transmission rate — (MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance. There are many industries where moisture control is critical. Moisture sensitive foods and pharmeceuticals are put in packaging… …
