Thermo osmotic effect of electrospun pvdf membrane / Mohammad Amierza Ikhmar Azmi

• Main Author: Azmi, Mohammad Amierza Ikhmar
• Format: Student Project
• Language: English
• Published: 2020
• Subjects: Polymers. Macromolecules; Physical and theoretical chemistry
• Online Access: http://ir.uitm.edu.my/id/eprint/41812/1/41812.PDF; http://ir.uitm.edu.my/id/eprint/41812/

The effect of thermo osmosis is critical to the osmosis based renewable energy harvesting. Using this technique the fluid is for cedinto another reservoir by using the osmosis effect, temperature gradient and pressure exerted to produce energy. In this study, we using the osmosis effect enhance by the temperature gradient to study the dynamics of fluid across the membranes for heat harvesting energy with different porosity. The materials that have been used to create the membranes are polyvinylidene fluoride (PYDF) because it has high thermal resistivity, high chemical resistance and good mechanical properties. Electrospinning machine was used to create the membranes with different porosity needed. The previous study show electrospinning machine will creates a beta phase of PVDF electro spun. From the experiment, sample of 10V shows higher efficiency in the dynamic of fluid pass through the membrane which is 0.009 m3 change in volume with 1.9485x10-5 N of the osmotic pressure. This is because the formation of beads a less compared to 14V and 18V where beads almost in every topology of membranes. The formation of fibers in the samples of 10Y, 14V and 18Y are well distributed by using electrospinning machine and we can see the porosity increased as the voltage increase.