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All Journal Journal of Engineering and Technological Sciences Jurnal Redoks FLUIDA Kinetika Equilibrium Journal of Chemical Engineering OISAA Journal of Indonesia Emas Jurnal Pendidikan dan Teknologi Indonesia AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) International Journal of Research in Vocational Studies (IJRVOCAS) Aptekmas : Jurnal Pengabdian Kepada Masyarakat Jurnal Masyarakat Madani Indonesia Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS
Syakdani, Adi
Politeknik Negeri Sriwijaya
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Journal : Kinetika

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ANALISA EKSERGI PADA PRODUKSI NITROGEN SISTEM PRESSURE SWING ADSORPTION (PSA) Syakdani, Adi
KINETIKA Vol. 9 No. 2 (2018): KINETIKA 01072018
Publisher : Politeknik Negeri Sriwijaya

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Nitrogen is staple compound in the chemical industry. Nitrogen demand continues to increase every year. Indonesia's nitrogen demand reaches 6% of world demand, and this number is expected to continue to increase. Increased nitrogen demand will also require high nitrogen production. In the production of nitrogen the most commonly used method is cryogenic systems. But in this way a lot of energy is wasted, especially in the conversion process. In an effort to use energy efficiently, non-cryogenic nitrogen production systems were developed. One of them is the Pressure Swing Adsorption (PSA) system, which applies the principle of adsorption.. Factors that may affect the purity of the product are the adsorbate pressure (air) and the adsorbate contact time and the adsorbent. Adsorbent used is Carbon Molecular Sieve (CMS). Compressed air is obtained from the compression process by a compressor that uses electricity as the primary power source. In an effort to optimize the use of energy used, the adsorbat pressure varied from 4.5.6 and 7 bar, while the contact time was varied 1.3. and 5 minutes. Based on the results of the study the most optimal operating conditions have been carried out to produce high nitrogen purity at 4 bar pressure and 5 minutes contact time and the resulting nitrogen purity is 96.2%.The optimum condition of exergy efficiency is 7 bar at 1 minute contact time with 97.079% exergy efficiency. While for the compressor the highest compressor efficiency and the lowest Irreversibility that is at the pressure of 7.1 bar that is efficiency 78.925% and Ic 14.951 kJ/kg
PROTOTIPE ALAT EVAPORATOR VAKUM (EFEKTIVITAS TEMPERATUR DAN WAKTU EVAPORASI TERHADAP TEKANAN VAKUM DAN LAJU EVAPORASI PADA PEMBUATAN SIRUP BUAH MENGKUDU (Morinda citrifolia L.)) Syakdani, Adi
KINETIKA Vol. 10 No. 2 (2019): KINETIKA 01072019
Publisher : Politeknik Negeri Sriwijaya

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The prototype of vacuum evaporator unit has a purpose to reduce moisture content of juice by using the minimum temperature at vacuum condition so that the nutritional value of the obtained product will not be vanished. An encountered problem in processing the food products is how to reduce the moisture content. By reducing moisture content, it is able to raise the shelf life of products, avoid the detrimental effect to the unit, and increase the economic value. The syrup is made with the evaporation process at the pressure below the atmospheric pressure subsequently the boiling point of the solvent is decreased. The evaporation process uses vacuum evaporator is done by setting the set point of process control which are the evaporating temperature 50 and 60ËšC within the time of 10, 20, 30, 40, and 50 minutes. The analyzed result shows that the optimum evaporation rate is 0.953 gr vapors/mins with the moisture content of 56.88% at 60ËšC. The operating pressure of this unit is 19 cmHg. In this operating pressure, the boiling point of water is descending so that the evaporation process is safe for the feed which is sensitive to the heat.
POTENSI ANTIOKSIDAN DALAM KELOPAK BUNGA ROSELLA (Hibiscus sabdariffa L.) SEBAGAI ANTI-AGING Malinda, Okta; Syakdani, Adi
KINETIKA Vol. 11 No. 3 (2020): KINETIKA 01112020
Publisher : Politeknik Negeri Sriwijaya

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Roselle flower (Hibiscus sabdariffa L.) contain compounds that have anioxidan so it can ward off free radicals. The value of roselle benefit is very wide both for food and health, so the potential of roselle diversification is quite large. The important ingredients found in roselle petals are anthocyanin pigments that act as antioxidants. The purpose of this article review is to know the potential of antioxsidan in roselle flowers (Hibiscus Sabdariffa L.) as anti-aging. Review of this article is using comparative research methods from various sources and from various research journals with a minimum number of 25 research journals. The results of this review suggest that the roselle flower (Hibiscus sabdariffa L.) has potential as anti-aging of the leaves, fruits, and petals of the roselle (Hibiscus sabdariffa L.) has been shown to contain antioxidant.
PENGOLAHAN AIR PAYAU MENJADI AIR BERSIH MENGGUNAKAN METODE ELEKTROKOAGULASI Kaslum, Leila; ., Fadarina; Meidinariasty, Anerasari; Yuliati, Selastia; Syakdani, Adi; Pratama, M.Bagas; Alpitansyah, Rachmad Bayu; Alnafrah, Fenty; Ismareni, Pepi
KINETIKA Vol. 12 No. 1 (2021): KINETIKA 01032021
Publisher : Politeknik Negeri Sriwijaya

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The limitation of clean water resources in coastal areas is related to the scarcity of fresh water. Water that has too high a salinity can cause harm if it is used for certain activities, for example, it is dangerous for health when used as drinking water, causing crop failure for agriculture, corrosion for equipment and buildings made of metal elements. In order to be used as clean water and suitable for daily household use, brackish water needs special treatment with the aim of reducing the mineral content in it, especially in reducing salinity levels. For this purpose brackish water treatment has been made into clean water which works based on the electrocoagulation process. The performance test was carried out by filling 10 liters of brackish water into the electrocoagulation reactor and using an electric current of 10 volts, 12 volts and 14 volts for each test. The observation times for each test were 60, 120 and 180 minutes. Measurement of salinity, iron, sulfate and organic substances for each test was carried out using a potentiometer, atomic absorption spectrophotometer, turbidimeter, and titrimetry. The optimum results of the test show that the use of 14 volts of electricity and contact time for 120 minutes can reduce iron levels from 1.41 mg / l to 0.98 mg / l, and sulfate levels from 301.97 mg / l to 235.84 mg. / l, levels of organic substances from 3.05 mg / l to 2.25 mg / l and salinity levels from 16.25 ppt to 10.07 ppt.
EFISIENSI TERMAL PRODUKSI STEAM DITINJAU DARI RASIO UDARA BAHAN BAKAR SOLAR PADA CROSS SECTION WATER TUBE BOILER Ningsih, Aisyah Suci; Syakdani, Adi; Rusnadi, Irawan; Oktaviani, Yustika; Veronica, Febri; Anisya, Jihan Triani
KINETIKA Vol. 12 No. 1 (2021): KINETIKA 01032021
Publisher : Politeknik Negeri Sriwijaya

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Cross Section Double Drum Water Tube Boiler is a steam boiler that is used to convert water into steam by heating, where the heat source comes from the combustion of fuel in the furnace. It is said that the Cross Section of the Double Drum Water Tube Boiler is because the tube arrangement in the boiler is made in the opposite direction to the drum, then this time the tool is made of a slope of 65º on the tube with the aim of reducing the force of gravity so that it will speed up the evaporation process, and has two drums. The fuel used in this study uses liquid fuel, namely diesel with the air-to-fuel ratio as a changing variable, while 15 liters of fuel and 75 kg of boiler feed water are fixed variables. The ratio of air to fuel used ranges from 15.78 to 18.16 . From the results of this study, the best response to the performance of the Cross Section Double Drum Water Tube Boiler is the air-to-fuel ratio of 17.57 ,where the boiler efficiency is 61.12%, of saturated steam and 67.18 % of superheated steam with a steam temperature of 151 ℃ and 229 ℃ , the steam pressure has reached the optimum pressure of 5 bar.
PENGUJIAN BERBAGAI AKTIVITAS EKSTRAK AIR ROSELLA SECARA IN VITRO (HIBISCUS SABDARIFFA L.) Malinda, Okta; Syakdani, Adi
KINETIKA Vol. 12 No. 1 (2021): KINETIKA 01032021
Publisher : Politeknik Negeri Sriwijaya

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Roselle (Hibiscus sabdariffa L.) is a plant that is often found in various countries and one of them is in Indonesia. The purpose of this review is to find out more about the activity of rosella water extract by testing in vitro. Roselle water extract is more commonly used compared to ethanol roselle extract. The activity of roselle water extract that has been found by in vitro testing is neuroprotective, antioxidant, antidiabetic, melanoma inhibitor, antibacterial, antihypertensi immune response, adipogenesis inhibitor, apoptosis inhibitor and modulation of MCP-1 production.
KONVERSI LIMBAH PLASTIK LDPE MENJADI BAHAN BAKAR CAIR (BBC) MENGGUNAKAN KATALIS ALUMINIUM OKSIDA DAN Arizal Aswan; Adi Syakdani; Agus Manggala; Ica Monika; Miranda Dwi Cendani
KINETIKA Vol. 12 No. 2 (2021): KINETIKA 01072021
Publisher : Politeknik Negeri Sriwijaya

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According to data from the Kementerian Lingkungan Hidup dan Kehutanan (KLHK), the amount of waste in Indonesiain 2019 reached 68 million tons, and plastic waste is estimated at 9,52 million tons. Considering that the nature of plastic is difficult to decompose, it is necessary to handle environmentally friendly waste. One of the countermeasures for plastic waste is to convert it into liquid fuel through the pyrolysis process. The pyrolysis of LDPE plastic uses a catalytic cracking method with aluminium oxide and zeolite as catalyst. The independent variable of this study is the pyrolysis temperature variation. The temperature used are 150℃, 200℃, 250℃, 300℃, 350℃, 400℃, 450℃ and 500℃. The highest %yield using aluminium oxide was obtained at 350℃ is 8.34%, while higest %yield using zeolite was obtained at 500℃ is 10.5%.Based on the analysis conducted, it was found that the oil density using aluminium oxide was in the range746.66 kg/m3-815.61 kg/m3, when using zeolite oil density was in the range 0.72 gr/ml-0.758gr/ml. viscosity using aluminium oxide was in the range 2.143 mm2/s-2.730mm2/s and using zeolite was in the range 2.8893 cSt – 3.4589 cSt, flash point ranges from 26℃-32℃, calorific value using aluminium oxide using zeolite was 7587,1678 cal/gr and the results of pyrolysis oil using aluminium oxide and zeolite catalyst the GCMS analysis show that the highest percentage is the C8-C10 chain of 45.13% and 63%..
CHARACTERISTICS OF GLASS SOAP BASED ON VIRGIN COCONUT OIL (VCO) WITH THE ADDITION OF BASIL LEAF EXTRACT (OCIMUM BASILICUM L.) AS ANTISEPTICS Meilianti; Idha Silviyati; Adi Syakdani
KINETIKA Vol. 13 No. 02 (2022): KINETIKA 01072022
Publisher : Politeknik Negeri Sriwijaya

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Soap is formed from a mixture of fat or oil with sodium or potassium salts made through the saponification process ofthe reaction between triglycerides and alkali. Glass soap is a innovation in the form of solid soap which has a smallsize in the form of a thin sheet that is easier to carry when active outside the home. Basil leaves contain flavonoid,tannins, saponins and other active ingredients that can be used as antibacterial. Glycerin can be used as a mixture insoap making as a plasticizer because it can make the texture of the soap elastic. The process of making glass soapuses a saponification process with variations in the addition of glycerin concentrations (w/w) of 5.5%, 10.5%, 15.5%,20.5%, 25.5% in curing time for 15 days. The results of the analysis showed that glass soap with the addition of 10%glycerin concentration with a curing time of 15 days was the best formulation and met the characteristics of SNI. Theresults of the analysis showed that the water content was 0.45%, the material was insoluble in ethanol 1.20%, ALB1.5%, free alkali 0.05%, and pH 10.
Co-Authors ., Fadarina Agus Manggala Ahmad Taqwa Alnafrah, Fenty Alpitansyah, Rachmad Bayu Anerasari Meidinariasty Anisya, Jihan Triani Arizal Aswan Asfitri, Melisa Kurnia Chantika, Nyimas Chyntya Daffa Alidina Diah Iswandari Dwi Okta Larassakti Ericx Arga Febby Fitria Sari Febby Fitria Sari Fithra Malvarinda Fitria Nur Anissa Hafiza, Natasya Hilwatullisan Hilwatullisan, Hilwatullisan Ibnu Hajar Ica Monika Idha Silviyati Idham Mahenri Indah Pratiwi Indah Purnamasari Indah Purnamasari Ira Wahyuning Thias Irawan Rusnadi Ismareni, Pepi Jaksen M.A K.A Ridwan Kaslum, Leila Khairunnisa, Eka Nurriza Liana Aprilayonda Malinda, Okta Meilianti Miranda Dwi Cendani Muhammad Taufik Muhammad Zaman Muhammad Zaman Nabila Putri Nasyta Nabila Putri Nasyta Nadia Yulianti Nasyta, Nabila Putri Ningsih, Aisyah Suci Oktaviani, Yustika PAISAL PAISAL Pratama, M.Bagas R. Rusdianasari Rizka Amalia Rizka Amalia Rizka Amalia Robert Junaidi Rusdianasari Rusdianasari Rusdianasari Rusdianasari Rusdianasari Rusdianasari Rusdianasari Sari, Febby Fitria Selastia Yuliati Selastia Yuliati Seprianto, Dicky Siti Chodijah Sofiah Sri Murda Niati Supraptiah, Endang Tahdid Veronica, Febri Yohandri Bow Yohandri Bow Zaman, Muhammad Zurohaina Zurohaina Zurohaina, Zurohaina