Thermal conductivity performance in propylene glycol-based Darcy-Forchheimer nanofluid flow with entropy analysis was written by Wang, Fuzhang;Khan, Sohail A.;Khan, M. Ijaz;El-Zahar, Essam Roshdy;Yasir, M.;Nofal, Taher A.;Malik, M. Y.. And the article was included in Journal of Petroleum Science & Engineering in 2022.Quality Control of 1,2-Propanediol This article mentions the following:
Entropy generation is a novel prospective in many thermodn. processes and presents dynamic applications in heat polymer processing optimization. The significance of entropy generation is observed in heat exchangers, combustion, thermal systems, nuclear reactions, turbine systems, porous media and many others. In view of such thermal applications, the main objective of recent anal. is to analyze the entropy optimized anal. for dissipative flow of Darcy-Forchheimer nanofluid over a permeable medium. Flow is generated by stretching of surface. Thermal radiation and viscous dissipation are incorporated in heat expression. Boehmite (AlOOH) and silica (SiO2) are considered as nanoparticles. Here propylene glycol (C3H8O2) is considered as continuous phase fluid. Entropy features is discussed through thermodn. second law. Nonlinear ordinary dimensionless form is obtained through suitable dimensionless variables. The obtained dimensionless expressions are numerically solved by implementation of ND-solve method. Graphical feature of entropy rate, temperature, Bejan number and velocity profile against flow variables for both Boehmite (AlOOH) and silica (SiO2) nanoparticles are discussed. Computational results of thermal transport rate and drag force vs. sundry variables for Boehmite and silica nanoparticles are studied. An increment in velocity profile is seen through volume fraction. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Quality Control of 1,2-Propanediol).
1,2-Propanediol (cas: 57-55-6) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Quality Control of 1,2-Propanediol
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts