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<![CDATA[Pelacak Matahari Dua Sumbu Menggunakan LDR untuk Meningkatkan Absorbsi Matahari ]]>
<![CDATA[Parikesit, Elang]]>;
<![CDATA[Purwadianto, Doddy]]>;
<![CDATA[Sambada, FA. Rusdi]]>
<![CDATA[ Media Teknika Vol 12, No 2 (2017) ]]>
Publisher : <![CDATA[Sanata Dharma University ]]>
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DOI: 10.24071/mt.v12i2.1082
<![CDATA[The position of the sun in the sky always changes periodically. A lot of research has been doneto follow the sun's motion using a solar tracking system to increase the amount of solar energy that can be absorbed. The solar tracking system can be grouped into passive and active system. Active sun tracker system uses motor drive in following the motion of the sun. The current active tracking system is using one or two rotary axis. Active two-axis solar tracking system provides greater efficiency and effectiveness than one-axis solar tracking system. This study aims to increase the absorbable sun energy with a simpletwo-axis solar tracking system. This research has been done by experimental method by making a model of two-axis sun tracker and its field data retrieval. The main parts of the model in this study are (1) LDR sensor, (2) microcontroller and (3) motor drive. Initial data of field test results shows a maximum increase (269%) in absorbable solar energy on a model using a sun tracker than models that d o not use a solar tracking systemKeywords: tracker, sun, two-axis rotate, simple]]>
<![CDATA[Pemodelan dan Analisis Termaldestilasi Air Energi Surya dengan Kaca Penutup Berpenampung Air ]]>
<![CDATA[Purwadianto, Doddy]]>;
<![CDATA[Kusbandono, Wibowo]]>;
<![CDATA[Sambada, FA. Rusdi]]>
<![CDATA[ Media Teknika Vol 12, No 2 (2017) ]]>
Publisher : <![CDATA[Sanata Dharma University ]]>
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DOI: 10.24071/mt.v12i2.1084
<![CDATA[A common way to increase the efficiency of distillation of solar energy is by cooling the cover glass. The method of cooling glass that is widely studied is the spray method. Spray method still has a weakness that is not the entire surface of the glass can be wetted cooling water. The water reservoir method allows wettage of the entire surface of the cover glass so that the cooling process can be better. This study aims to increase the efficiency of the distillation of solar energy water by cooling the cover glass using a water reservoirs method. Parameters varied during this experimental stage are: the cooling water mass rate. Parameters measured were: (1) absorber temperature, (2) cover glass temperature, (3) cooling water temperature, (4) input water temperature, (5) ambient air temperature, (6) distilled water, 7) solar energy coming and (8) data recording time. The conclusions of this study were: the largest distillate water yield obtained was 3.26 liter / (hari.m2) with an average efficiency of 41.0%. Distilled water yield and best efficiency are obtained at cooling water rate of 7.1 liter / hour. The temperature difference between the absorber and the largest glass is 11.4°CKeywords: cooling, water distillation, solar energy, water reservoirs]]>
<![CDATA[Microcontroller Based Simple Water Flow Rate Control System to Increase the Efficiency of Solar Energy Water Distillation ]]>
<![CDATA[Parikesit, Elang]]>;
<![CDATA[Kusbandono, Wibowo]]>;
<![CDATA[Sambada, FA. Rusdi]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 01, Issue 02, December 2019 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v1i2.1923
<![CDATA[The current problem of solar energy water distillation is in its low efficiency. Low efficiency is caused by inefficient water evaporation processes. Increasing the efficiency of water evaporation is done by controlling the rate of water entering into the absorber. The commonly used mechanical control system still has weaknesses such as the instability of the water entering the absorber. This causes less effective evaporation of water so that the resulting distillation efficiency is not optimal. The water rate input system for distillation in this study is based on a simple microcontroller. The microcontroller-based input water rate control system allows the rate of input water with a small but continuous flow rate so that the water evaporation process can be more effective. This study aims to improve the efficiency of solar energy water distillation by increasing the efficiency of the water evaporation process through controlling the flow rate of water inlet. The research was carried out by the experimental method. The parameters varied were: the rate of input water which was 0.3 l / hour, 0.5 l / hour and 1.2 l / hour. Parameters measured in this study were: (1) temperature of absorber, (2) temperature of the cover glass , (3) temperature of cooling water, (4) input water temperature, (5) ambient air temperature, (6) distilled water results, (7) solar energy coming in and (8) time of recording data. The results showed that the production of distillation water using microcontroller-based water rate control was a maximum of 523% compared to the model without water rate control at a water flow rate of 0.3 liters / hour, with distillation efficiency of 66%. From the results of this study it can also be concluded that microcontroller based water flow rate controller is more stable than mechanical water flow controller, especially in small flow]]>
<![CDATA[PEMANFAATAN ENERGI PANAS PENGEMBUNAN PADA DISTILASI AIR ENERGI MATAHARI JENIS KAIN ]]>
<![CDATA[Sambada, FA. Rusdi]]>
<![CDATA[ Prosiding Seminar Nasional Multidisiplin Ilmu Vol 1, No 2 (2019): Prosiding Seminar Nasional : Pemanfaatan Literasi Digital Dalam Publikasi Ilmiah ]]>
Publisher : <![CDATA[Universitas Respati Yogyakarta ]]>
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<![CDATA[Distilasi air energi matahari merupakan cara menghasilkan air layak minum dari air yang terkontaminasi. Masalah utama distilasi air energi matahari adalah rendahnya efisiensi. Pemanfaatan energi panas pengembunan adalah salah satu cara meningkatkan efisiensi. Penelitian ini bertujuan menganalisis pengaruh pemanfaatan panas pengembunan untuk memanaskan air masukan distilasi terhadap efisiensi. Air masukkan dialirkan diantara kaca penutup dan kaca kedua sehingga air masukkan dapat mengambil panas pengembunan melalui kaca penutup. Penelitian dilakukan dengan membuat model distilasi air energi matahari jenis absorber kain seluas 0,49 m2 yakni model tanpa pemanfaatan panas pengembunan sebagai pembanding dan model dengan pemanfaatan panas pengembunan.Variabel yang divariasikan pada penelitian ini adalah laju aliran massa air masukkan kaca sebanyak tiga variasi yakni 1 liter/jam, 2 liter/ jam dan 4 liter/jam dan lebar kaca kedua sebanyak tiga variasi yakni 3cm, 6cm dan 10 cm. Variabel yang diukur adalah temperatur air (TW), temperatur kaca penutup (TC), temperatur udara sekitar (TA), jumlah massa air distilasi yang dihasilkan (mD) dan energi matahari yang datang (I). Hasil penelitian menunjukkan hasil terbaik diperoleh pada variasi lebar kaca kedua sebesar 6 cm dengan laju aliran air sebesar 1 liter/jam. Hasil terbaik yang diperoleh pada variasi tersebut adalah air distilasi sebanyak 4,2 liter/m2.hari dengan efisiensi 65,8%Kata kunci : distilasi air, energi matahari, pemanfaatan panas pengembunan, efisiensi]]>
<![CDATA[CHARACTERISTICS OF SOLAR STILL WITH HEAT EXCHANGERS ON THE COVER GLASS ]]>
<![CDATA[Nanda, Ignasius Dinang Yudra]]>;
<![CDATA[Sambada, F. A. Rusdi]]>;
<![CDATA[Yulianto, Yulianto]]>;
<![CDATA[Sitio, Angelina Boru]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 02, Issue 01, Juni 2020 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v2i1.1989
<![CDATA[Drinking water is one of the main needs of human life. Water sources do not always have the feasibility to drink. Distillation is one way to obtain potable water. Distillation can influence on drinking water quality. Low performance is a major problem in distillation. One way to improve performance is by increasing the input water temperature. One way to increase the input water temperature by utilizing heat energy on the cover glass. This study aims to improve the performance of solar energy water distillation and input water temperature by a heat exchanger. This research method is experimental. The measured variables are absorber temperature in the distillation model (T1), glass temperature (T2), ambient temperature (Ta), amount of distilled water produced (m) and heat energy coming from solar energy (G). This research uses variations, namely with a white or black heat exchanger and without heat exchanger. Water quality tested using 4 parameters such as microbiology, inorganic chemistry, physical and chemical. Based on this study, the best results produced by a black heat exchanger using a water flow rate of 2 l/h which produce distillation water 422 ml (480 ml/(m2.h)) and efficiency value of 79.74%. While the best results using white heat exchanger is using 0.7 l / hour water flow rate which produces distillation water of 497 ml/(m2.h) and efficiency value of 82.63%, Distilled water has increased in quality even though it has not met the standards No. 492 of 2010Keywords: distillation, solar energy, glass cover, water quality, efficiency]]>
<![CDATA[Pemodelan dan Analisis Termaldestilasi Air Energi Surya dengan Kaca Penutup Berpenampung Air ]]>
<![CDATA[Doddy Purwadianto]]>;
<![CDATA[Wibowo Kusbandono]]>;
<![CDATA[FA. Rusdi Sambada]]>
<![CDATA[ Media Teknika Vol 12, No 2 (2017) ]]>
Publisher : <![CDATA[Sanata Dharma University ]]>
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DOI: 10.24071/mt.v12i2.1084
<![CDATA[A common way to increase the efficiency of distillation of solar energy is by cooling the cover glass. The method of cooling glass that is widely studied is the spray method. Spray method still has a weakness that is not the entire surface of the glass can be wetted cooling water. The water reservoir method allows wettage of the entire surface of the cover glass so that the cooling process can be better. This study aims to increase the efficiency of the distillation of solar energy water by cooling the cover glass using a water reservoirs method. Parameters varied during this experimental stage are: the cooling water mass rate. Parameters measured were: (1) absorber temperature, (2) cover glass temperature, (3) cooling water temperature, (4) input water temperature, (5) ambient air temperature, (6) distilled water, 7) solar energy coming and (8) data recording time. The conclusions of this study were: the largest distillate water yield obtained was 3.26 liter / (hari.m2) with an average efficiency of 41.0%. Distilled water yield and best efficiency are obtained at cooling water rate of 7.1 liter / hour. The temperature difference between the absorber and the largest glass is 11.4CKeywords: cooling, water distillation, solar energy, water reservoirs]]>
<![CDATA[Pelacak Matahari Dua Sumbu Menggunakan LDR untuk Meningkatkan Absorbsi Matahari ]]>
<![CDATA[Elang Parikesit]]>;
<![CDATA[Doddy Purwadianto]]>;
<![CDATA[FA. Rusdi Sambada]]>
<![CDATA[ Media Teknika Vol 12, No 2 (2017) ]]>
Publisher : <![CDATA[Sanata Dharma University ]]>
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DOI: 10.24071/mt.v12i2.1082
<![CDATA[The position of the sun in the sky always changes periodically. A lot of research has been doneto follow the sun's motion using a solar tracking system to increase the amount of solar energy that can be absorbed. The solar tracking system can be grouped into passive and active system. Active sun tracker system uses motor drive in following the motion of the sun. The current active tracking system is using one or two rotary axis. Active two-axis solar tracking system provides greater efficiency and effectiveness than one-axis solar tracking system. This study aims to increase the absorbable sun energy with a simpletwo-axis solar tracking system. This research has been done by experimental method by making a model of two-axis sun tracker and its field data retrieval. The main parts of the model in this study are (1) LDR sensor, (2) microcontroller and (3) motor drive. Initial data of field test results shows a maximum increase (269%) in absorbable solar energy on a model using a sun tracker than models that d o not use a solar tracking systemKeywords: tracker, sun, two-axis rotate, simple]]>
<![CDATA[PETROLEUM CHARACTERISTICS ETER AND DIETIL ETER AS THE WORK ENERGY WATER ENERGY PUMP ]]>
<![CDATA[F.A. Rusdi Sambada]]>;
<![CDATA[A. Prasetyadi]]>
<![CDATA[ Jurnal Penelitian Saintek Vol 19, No 1: April 2014 ]]>
Publisher : <![CDATA[Institute of Research and Community Services, Universitas Negeri Yogyakarta ]]>
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DOI: 10.21831/jps.v19i1.2319
<![CDATA[Water pumps in areas without electricity are generally driven by fuel engine. The problem arises while the fuel is getting scarce and expensive. This research aims to create a model of thermal energy water pump and examine petroleum ether and diethyl ether characteristics as working fluid of thermal energy water pump. Parameter variations are done on type of fluid, mass of the working fluid and pumping head. Measurements are conducted on temperature of the working fluid, pumping discharge, time, working fluid pressure and pump pressure. A cycle time of petroleum ether is 158 minutes which is 6 times longer than diethyl ether (24.3 minutes). The discharges of diethyl ether are 0.9, 0.7 and 1.3 liters/min in average, minimum and maximum respectively. They are greater than petroleum ether (0.3, 0.1 and 1.1 liters/min). Diethyl ether generated evaporator pressure greater than petroleum ether (0.7 vs. 0.55 bar). Amount of air in the pressured air tube and in the system affects the volume and discharge. There is optimal mass of working fluid for specific head and amount of air in the pressured air tube. There is also optimal head for specific amount of working fluid mass and air in the pressured air tube. ]]>
<![CDATA[Peningkatan Efisiensi Distilasi Air Energi Surya Menggunakan Pengapung ]]>
<![CDATA[FA. Rusdi Sambada]]>;
<![CDATA[Fidelis Ananta]]>
<![CDATA[ Jurnal Energi Dan Manufaktur Vol 13 No 2 (2020) ]]>
Publisher : <![CDATA[Department of Mechanical Engineering, University of Udayana ]]>
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DOI: 10.24843/JEM.2020.v13.i02.p05
<![CDATA[The joint for two different materials (AA5052 and AA6061) can be done by the Dissimilar Friction Stir Welding (DFSW) process. Therefore, this study was conducted to analyze the mechanical properties of dissimilar welding joints. In this study the DFSW process uses a tool with a shoulder Ø 17.8 mm and a cylindrical pin Ø 5 mm. FSW blocking is done on conventional milling machines with 1300 rpm, 1950 rpm and 2850 rpm tool rotation variations, while the welding speed variations are 43 mm / min, 130 mm / min and 240 mm / min. The results of mechanical properties testing showed the highest hardness value obtained was 55.3 HBN at 1300 rpm with 240 mm / min feeding, the highest tensile strength occurred for 1300 rpm and 240 mm / min feeding at 123.51 MPa. The fracture of the tensile test results generally occurs in the HAZ area and the AA5052 base metal Nugget. Investigation results show that the DFSW connection of aluminum alloy material AA 6061 and AA 5052 adapt is well connected, but in terms of general strength the tensile strength of the joint (HAZ and Nugget) is smaller than the tensile strength of the base metal. This DFSW connection adaptation is applied to connections that do not accept load or tensile strength due to the load received by the connection not to exceed the maximum tensile strength of base metal AA 5052]]>
<![CDATA[Unjuk Kerja Destilasi Air Energi Surya ]]>
<![CDATA[I Gusti Ketut Puja]]>;
<![CDATA[FA. Rusdi Rusdi Sambada]]>
<![CDATA[ Jurnal Energi Dan Manufaktur Vol 5 No 1 (2012): Oktober 2012 ]]>
Publisher : <![CDATA[Department of Mechanical Engineering, University of Udayana ]]>
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<![CDATA[Clean water is daily needs for society, especially for drinking and cooking. Existing water sources oftenalready contaminated with dirt, salt (sea water), heavy metals, bacteria or other harmful materials. Thewater in this condition can be detrimental to health if used for drinking or cooking, hence the water has tobe rarefied first. There are many ways to purify contaminated water, one way is by distillation. Distillationprocess requires heat to evaporate the contaminated water before condensed and produce clean water.Thermal energy for distillation process can come from many sources, one of which is solar energy. Thepurpose of this study is to investigate the performance difference between solar powered water distillationthat uses parabolic collector and reflector with solar powered water distillation without the use of paraboliccollector and reflector (basic form). Distillated water will be tested in the laboratory to determine whetherthe water quality qualifies as drinking water or not after distillation process. Equipment which used in thisstudy consisted of contaminated water tanks, distillation apparatus and distillated water storage. Distillationapparatus has a length of 1 meter and 0.5 meters wide. There are three variations on the distillationapparatus used i.e. distillation with reflector, distillation with parabolic collector and distillation withoutreflector and collector (basic form). Distillation appliance is equipped with water depth indicator. Waterdepth inside the distillation varied i.e. 5 mm, 7.5 mm, and 10 mm. The results showed a maximum ofdistilled water produced is 0.850 liter in 2 hours with an average efficiency of 49.2% produced by thedistillation using reflector with 5 mm water depth. Maximum of distilled water yield with 10 mm water depthis 0.20 liter in 2 hours produced by distillation using parabolic collectors. Laboratory test stated that qualityof distilled water can be accepted as drinking water.]]>
