Massestrømmåling

Massestrømmåling, or mass flow measurement, is the process of determining the mass of a substance that passes through a point in a given period. Unlike volumetric flow measurement, which measures the volume of fluid, mass flow measurement accounts for changes in density, which can be influenced by temperature, pressure, and composition. This makes mass flow measurement crucial in applications where the mass of the transported substance is of primary importance, such as in chemical processes, combustion engines, and the distribution of natural gas.

Several technologies are employed for mass flow measurement. Thermal mass flow meters are common and operate on the principle that heat transfer from a heated element to the flowing fluid is proportional to the mass flow rate. Coriolis mass flow meters, on the other hand, utilize the Coriolis effect, where a vibrating tube carrying the fluid experiences a twisting force proportional to the mass flow rate. Other methods include inferential measurements, where volumetric flow is measured and then converted to mass flow using density data. The choice of technology depends on factors like the fluid properties, required accuracy, operating conditions, and cost. Accurate mass flow measurement is essential for process control, material balance, and ensuring efficient and safe operations in various industries.