Determination of mass diffusion coefficients of oxygenated fuel additives in air using digital real-time holographic interferometry

Determination of Binary Gas Diffusion Coefficients Using Digital Holographic Interferometry

“…The experimental uncertainties of temperature and the diffusion coefficient are estimated to be no greater than ± 0.16 K and ± 0.2 %, respectively, as shown in Table .…”

“…It includes two parts: a diffusion cell and the perspex water tank. To make sure that the experiment goes on in a stable temperature environment, the diffusion cell is fixed in the perspex water tank by the two flanges on both sides of the tank, and the perspex water tank is supplied by an additional thermostatic water system whose temperature can be controlled from (273.15 to 353.15) K with the uncertainty of ± 0.2 K …”

“…It includes two parts: a diffusion cell and the perspex water tank. To make sure that the experiment goes on in a stable temperature environment, the diffusion cell is fixed in the perspex water tank by the two flanges on both sides of the tank, and the perspex water tank is supplied by an additional thermostatic water system whose temperature can be controlled from (273.15 to 353.15) K with the uncertainty of ( 0.2 K. 14 The injection of gas is done as follows: First, the baffle plate was closed, and the inlet and outlet for the upside gas were opened. Then, the first gas is injected slowly through the inlet, and with the injection of the first gas, air was ejected out.…”

“…On the basis of our previous work, ,, a holographic interferometric experimental system for measuring the binary gas diffusion coefficient was used. A diffusion cell was designed and constructed to achieve the process of gas diffusion.…”

“…It is a widely used experimental method for measuring thermophysical properties of fluids and has been used by many researchers to measure the diffusion coefficient of liquids; its accuracy and reliability have been verified. 8,9 On the basis of our previous work, 11,12,14 a holographic interferometric experimental system for measuring the binary gas diffusion coefficient was used. A diffusion cell was designed and constructed to achieve the process of gas diffusion.…”