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PROTOTYPE STEAM POWER PLANT (ANALISIS HEAT LOSS PADA UNIT BOILER FURNACE DAN SUPERHEATER) Difa Putri Utami, Ayu; ., Zurohaina; Aswan, Arizal
KINETIKA Vol. 7 No. 1 (2016): KINETIKA 01032016
Publisher : Politeknik Negeri Sriwijaya

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Abstract

The purpose of this experiment is to find a formula prototype steam power plant to find a solution to the crisis of electricity in rural areas. Has conducted a study to determine heat loss at for incineration in furnaces and boiler super heater unit. The fuel used is diesel and LPG fuel with a mass of different - different. The results obtained from the calculation of the importance of the loss of heat radiation in the boiler furnace of 5.6%, 2.66% convection heat loss and heat conduction loss amounted to 5.73%, on the theory that it should heat loss should not be more than 1%. Heat loss occurring in the steam power plant prototype unit is still quite large when viewed from PLTGU PLN Keramasan sector with a heat loss in radiasi, conduction and convection. Heat loss can be mitigated in several ways one of them is a good insulator technique using cement or asbestos in accordance with the value of conductivity that need and can be determined from the results of the design calculations.
ANALISA BAHAN BAKAR MINYAK HASIL PIROLISIS SAMPAH PLASTIK JENIS PP DAN PET TERHADAP KINERJA GENERATOR SET PADA PLTSA PLASTIK KAPASITAS 1000 WATT ., Zurohaina; ,, Tahdid; Zikri, Ahmad; Bow, Yohandri; ,, Zulkarnain; sari, Desi Nurmala; Wulandari, Nila; Putra, M. Rizky Adhitya
KINETIKA Vol. 10 No. 1 (2019): KINETIKA 01032019
Publisher : Politeknik Negeri Sriwijaya

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Plastic waste and energy is a big problem nowadays especially for big cities. Along with the growing population every year with a diverse community life activities always generate waste every day and energy consumption is increasing high. The limited of energy dependent on fossil energy forces the search for new alternative energy to replace fossil energy. One of the answers to the limitation of fossil energy is the conversion of plastic waste into liquid fuels by pyrolysis technology using plastic raw materials of Polyethylene Terephthalate (PET) and Polypropylene (PP). Which can be used as fuel in motor fuel or generator set to generate electricity in prototype unit of plastic waste generator by using dry coconut shell as Furnace fuel. The purpose of this research is to test the performance of generator sets using light Oil fuels (FRA) and Heavy Oil Fuel (FRB). Liquid fuels pyrolysis products are used as fuel generators to be converted into electrical energy with loads varying to a maximum load at 1000 watts for 10 hours per day. The results of this research obtained the value at the optimal load of 800 watts of electrical current that occurred at 4.37 amperes with 183 volt voltage, 2650 rpm rotation shaft genset, and fuel consumption / hour at 0.803 L / hour.
PENGARUH LEVEL KETINGGIAN AIR TERHADAP EFFISIENSI THERMAL PADA CROSS SECTION WATER TUBE BOILER MENGGUNAKAN GAS DAN SOLAR PRODUKSI SATURATED STEAM PROSES KONTINYU Saputra, Ardian; Putra, Febbial Pratama; ., Tahdid; Manggala, Agus; ., Zurohaina
KINETIKA Vol. 11 No. 2 (2020): KINETIKA 01072020
Publisher : Politeknik Negeri Sriwijaya

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Boilers are used to lower the temperature of the gas and diesel passed through the tubes, and to separate the fluid between the gas phase (water vapor) and the liquid phase (water). In the Boiler water feedback system, a controller is needed that is able to maintain the stability of the water level. The boiler used often has problems that cause less than optimal steam results. The problem that occurs is usually at the level of the water level with the fuel which causes the combustion results to be not optimal and has an impact on the steam produced to be not optimal. Therefore, this research will focus on determining the most appropriate water level with natural gas and diesel fuel so that maximum combustion results are obtained. The tube will also be installed vertically with a slope of 65ËšC with the aim of increasing heat transfer to the boiler and accelerating the evaporation of water molecules which are expected to produce more optimal steam. The parameters observed were temperature, pressure, and the temperature of the combustion flame, the aim was to determine the effect of air on fuel gas and diesel on the speed of temperature and pressure increase. The results of the research show that the optimal water level is the 5th condition (70%) because it can produce saturated steam according to the Efficiency target with a constant state in a continuous process using diesel and gas fuel.
ISSN: 1693-9050 E-ISSN: 2623-1417 https://jurnal.polsri.ac.id/index.php/kimia/index 20 PENGARUH DAYA MICROWAVE DALAM PROSES PENGOLAHAN MINYAK MAWAR (Rosa hybrida) DAN MINYAK YLANG-YLANG (Cananga odorata genuine) DENGAN METODE MICROWAVE HYDRODISTILLATION Effendy, Sahrul; Aswan, Arizal; Ridwan, K.A; ., Zurohaina; Ramadhania, Nadhira; Amanda, Thalia Junica
KINETIKA Vol. 11 No. 3 (2020): KINETIKA 01112020
Publisher : Politeknik Negeri Sriwijaya

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Rose and ylang-ylang flower oil is usually obtained by conventional hydrodistillation and takes a long time. One of the new technologies that can be used is hydro distillation using a microwave. This study aims to study the effect of time and microwave power on the yield of essential oils obtained and will be analyzed with rose oil standards ISO 9842: 2003 and CAS 8007-01-0 and ylang-ylang flower oil SNI 06-7224-2006. The variables tested in this study were the ingredients of rose and ylang-ylang flowers (fresh and wilted), weighing 200 grams and 100 grams, respectively. The microwave power used is 180, 270, 360, 450 Watt. The operating conditions in this method are at 1 atm. The highest yield of rose flower oil yield was at the power of 450 Watt minutes to 90 of 0.1266%, while the highest yield of ylang-ylang flower oil was at power of 360 watts to 90 minutes of 0.2758%. The lowest value of specific energy consumption (SEC) in roses is at a power of 450 watts of 2.0574 kWh / gr. The SEC value of ylang-ylang flower oil is at a power of 360 watts of 2.1318 kWh / gr.
PROSES PENGAMBILAN MINYAK ATSIRI DARI TANAMAN NILAM (Pogestemon cablin Benth) MENGGUNAKAN METODE MICROWAVE HYDRODISTILLATION Yuliana, Dwi Astri; urhidayati, Siti; ., Zurohaina; Aswan, Arizal; Febriana, Ida
KINETIKA Vol. 11 No. 3 (2020): KINETIKA 01112020
Publisher : Politeknik Negeri Sriwijaya

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Patchouli essential oil that is produced using conventional refining technology often does not meet the requirements for export. Refining using conventional technology requires a relatively long time, the energy required is large and the product quality is low. To improve the quality of patchouli oil and energy savings in this study, the process of making patchouli oil using the Microwave hydro distillation method is used. This process is a combination of the use of microwaves with a distillation system. The material in the flash column section which is made of glass will be penetrated by microwave radiation and will be absorbed by the material. This event will cause heat so that the cell walls in the oil will break and the content in the oil will be free to escape. Based on the results of the study using patchouli plant raw materials, the optimal variation in operating time and microwave power to obtain high yields at 60 minutes power was 0.3301% and the lowest SEC value was at 30 minutes power which was 1.889.92 gr / ml. While the results of the study used patchouli leaf raw materials, the optimal variation in operating time and distillation temperature to obtain high yields at a temperature of 98ËšC minutes 60, namely 0.3301% and the lowest SEC value at a temperature of 98ËšC minutes 30. which is 1,889.92 gr / ml.
PENGARUH DAYA MICROWAVE TERHADAP RENDEMEN MINYAK KAYU MANIS (Cinnamomum burmannii) DENGAN METODE MICROWAVE HYDRODISTILLATION Hananta, Bagas Oktaihza; Pratama, Putra; Aswan, Arizal; ., Fatria; ., Zurohaina
KINETIKA Vol. 11 No. 3 (2020): KINETIKA 01112020
Publisher : Politeknik Negeri Sriwijaya

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Cinnamon oil is usually obtained by conventional methods and takes a long time. One of the newer methods that can be used is microwave hydrodistillation. The advantage of microwaves is their ability to provide energy directly to all ingredients, which saves time compared to conventional methods. This study aims to study the effect of time and microwave power on the yield of essential oils obtained. The solvent used was aquadest, the variables tested in the study were the raw material for leaves and cinnamon bark weighing 150 grams and 100 grams, respectively. The microwave power used is 180, 360, 450 Watt. The operating conditions in this method are at atmospheric pressure. When using 180W power, the yield of leaf oil and cinnamon bark is 0.65% and 0.51%, at 360W power is 0.96% and 0.75%, and 450W power is 0.88% and 0.89%. %. The value of specific energy consumption (SEC) at 180W microwave power is 1.78 kWh / gr and 3.40 kWh / gr, at 360W power is 1.50 kWh / gr and 2.91 kWh / gr and 450W power is 1.80 kWh / gr and 2.72 kWh / gr.
PENGARUH JUMLAH KATALIS DAN TEMPERATUR PADA PROSES PEMBUATAN BAHAN BAKAR CAIR LIMBAH STYROFOAM DENGAN METODE CATALYTIC CRACKING ., Zurohaina; Zikri, Ahmad; Febriana, Ida; Amin, Jaksen M.; Pratiwi, Anggun; Pratiwi, Mitha; Reyhan, Muhammad Hifal
KINETIKA Vol. 11 No. 1 (2020): KINETIKA 01032020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Styrofoam is a thermoplastic polymer that cannot be biodegradable. Styrofoam waste is generally treated using burning method which produce a dangerous gases. Cracking is the right method to solve the problem by converting styrofoam waste into liquid fuel. In this study, the cracking process was carried out by catalytic cracking method using zeolit alam, SiO2.Al2O3 dan Ï’-Al2O3 as a catalyst. The aims of this study are to determine the effect of the number of catalyst and temperature variation on the percentage of yield, physical properties and compound content of liquid fuel. Variabels varied are the number of catalyst 5-25% from total reactants and temperatur variation 300-550 oC. The result shows, the highest %yield using zeolit alam is 77,7846% at 20% catalyst, for silica alumina with variations of temperature showed the highest % yield in the temperature 450oC is 79,09% and for Ï’-Al2O3 with variations of temperature showed the highest % yield in the temperature 500oC is 68,20%
Co-Authors ,, Tahdid ., Fatria ., Tahdid Amanda, Thalia Junica Amin, Jaksen M. Anggun Pratiwi Ardian Saputra, Ardian Arizal Aswan Difa Putri Utami, Ayu Effendy, Sahrul Febriana, Ida Hananta, Bagas Oktaihza Manggala, Agus Pratiwi, Mitha Putra Pratama Putra, Febbial Pratama Putra, M. Rizky Adhitya Ramadhania, Nadhira Reyhan, Muhammad Hifal Ridwan, K.A RR. Ella Evrita Hestiandari sari, Desi Nurmala urhidayati, Siti WULANDARI, NILA Yohandri Bow Yuliana, Dwi Astri Zikri, Ahmad