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All Journal Program Kreativitas Mahasiswa - Penelitian
Nur Abdillah Siddiq
Jurusan Teknik Fisika, Institut Teknologi Sepuluh Nopember, Surabaya

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ANALISIS PENGARUH KOMPOSISI DAN UKURAN NANOKOMPOSIT LiFePO4 Siddiq, Nur Abdillah; Fauzan A., Ahmad; Abdillah, Firqi; Alifah, Miratul; Fadhilah, Nur
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Lithium ion batteries was currently used as an energy source for portable electronic devices and more promising than others. But the conventional LiFePO4 has low ionic diffusivity. Flame spray pyrolysis method was developed as a particle synthesis method. This research reports the effect of LiFePO4 particle size and composition in lithium batteryperformance. As free variables of this research are the carrier gas flow rate and concentration of glucose. From the results obtained, the higher the flow rate of carrier gas so that decrease diffusivity and the higher the glucose concentration so that increase diffusivity.Keywords: LiFePO4, flame spray pyrolysis, diffusivity, particle size, glucose concentration.
STUDI EKSPERIMENTAL NANOREFRIGERAN TiO2-R600a SEBAGAI REFRIGERAN MASA DEPAN Rozaq, Abdur; Siddiq, Nur Abdillah; Putra, Rendy Krisnanta; Yusuf Z, Muhammad Dicky; Muyasaroh, Siti
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

The use of CFC refrigerants (Chloro Fluoro Carbon) leads to destruction of ozone layer and global warming. An alternative refrigerant is hydrocarbon refrigerant, but it has the disadvantage of easily exploded. This experimental study has been conducted to study the effect of addition of TiO2, which are flame retardant, on the performance of hydrocarbon refrigerant R600a (nanorefrigeran TiO2-R600a). Test of Performance conducted according to refrigerants national standards IEC 60335-2-24-2010. The result is R600a-TiO2 is safe and efficient to be used as a refrigerant without any modification on refrigerator. TiO2 increases the thermal conductivity and heat transfer of refrigerant. The best performance is obtained at TiO2 concentration of 1 g / L (COP = 4,821). It is expected that the nanorefrigeran TiO2-R600a can be used as the primary refrigerant in the future that are environmentally friendly and efficient. Keywords:  Nano-Refrigerant, R600A, TiO2, COP
Co-Authors Abdur Rozaq, Abdur Ahmad Fauzan A. Firqi Abdillah Miratul Alifah Muhammad Dicky Yusuf Z, Muhammad Dicky Nur Fadhilah Rendy Krisnanta Putra, Rendy Krisnanta Siti Muyasaroh, Siti