Thermal Effusivity Measurement of Virgin Coconut Oil-Methanol Mixtures using Photoacoustic Technique| Science Publications

American Journal of Engineering and Applied Sciences

Firas K.M. Al-asfoor¹  Noor J. Ridha¹  W. M.M. Yunus¹  Mohd M. Moksin¹  L. Y.C. Josephine¹  Azmi Zakaria¹ 

关键词: Photoacoustic cell;    virgin coconut oil;    methanol;    biodisel;    methanol mixture;   

DOI  :  10.3844/ajeassp.2008.200.203

学科分类：工程和技术（综合）

来源: Science Publications

【 摘 要 】

Thermal effusivity of virgin coconut oil-methanol mixtures were measured using open photoacoustic cell technique. The samples were prepared by simply mixing virgin coconut oil and methanol using similar procedure applied for preparation of biodisel. Thermal effusivity of the sample was obtained by fitting the experimental data of photoacoustic amplitude signal to the expression of photoacoustic signal as a function of chopping frequency. Thermal effusivity of mixtures decrease between 0.0851 W s^1/2 K^-1 cm^-2 (pure virgin coconut oil) and 0.0644 W s^1/2 K^-1 cm^-2 (pure methanol) with the increasing of methanol in the mixture.

【 授权许可】

Unknown