Rosdiana Moeksin
Mahasiswa Pasca Sarjana Prodi Teknik Mesin Fakultas Teknik Unsri

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INFLUENCE OF BLENDING OF DIESEL CERTIFIED AND BIODIESEL CPO ON EFFICIENCY OF 60 MMT SB BOILER TYPE Sumardi, Novia; Ellyanie, Ellyanie; Moeksin, Rosdiana
Journal of Mechanical Science and Engineering Vol 1, No 1 (2013): Journal of Mechanical Science and Engineering
Publisher : Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.227 KB)

Abstract

Abstract Combustion is the process of mixing  oxygen and carbon in speed and produces heat. Oxygen  from the air, while carbon derived from fuel. Combustion  boilers as a chemical process of unification of the fuel and oxygen from the air with the speed of a particular reaction that produces energy. Calculation of the combustion process is the starting point  the design of boilers, furnaces and other appliances that generate heat from the combustion process derived from the number of elements involved in a chemical reaction, the amount of heat generated and the efficiency of combustion. The fuel is a mixture of diesel and biodiesel certified crude palm oil, ratio B0, B5, B10, B15, B20, B30 testing using Fire Tube BoilersSB60MMT. From the ultimate analysis and dry flue gas emissions (gas Analyzer), then calculated based on stoichiometric combustion and efficiency using the indirect method, the calculation results obtained from the more mixed crude palm oil biodiesel is added then the content of SO2, CO, NOx  increasingly reduced. Also obtained the largest heat loss due to dry flue gas and 8,209% heat loss due to evaporation of water formed in  H2 fuel efficiency of 7,002% to 85.637% on the  blend B20. Keywords: Solar Certified, CPO Biodiesel, Fire Tube Boilers, Emissions, Effici
Liquid Soap Production from Catfish (Pangasius hypophthalmus) Fat Waste Aprianti, Nabila; Nurhayati, Siti; Moeksin, Rosdiana
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 4, No 2 (2019): June 2019
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v4.i2.77

Abstract

Catfish (Pangasius hypophthalmus) fat is a waste that has not been used optimally, especially in the use of soap. This study aimed to determine the effect of operating conditions are temperature, reaction time, and the ratio of volume between catfish oil and KOH. Soap can be formed by saponification reaction with strong alkali by hydrolyzing catfish oil with variations in the volume ratio of reactants (1:2, 1:3 and 1:4), temperature (75 °C and 95 °C) and reaction time (45 minutes and 75 minutes) with a constant stirring speed of 300 rpm. In the variation of the volume ratio of reactants, temperature and reaction time carried out in this study, a good liquid soap obtained is the volume ratio of reactants 1:3, temperature 75 °C and reaction time 45 minutes with pH 9.3 and free fatty acid 2.27%. The soap products produced have met SNI No. 06-4085-1996.