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All Journal Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam
Maksi Ginting
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Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mathematics Physics

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PENENTUAN EFISIENSI KOLEKTOR PELAT DATAR DENGAN PENUTUP KACA PADA SISTEM PEMANAS AIR SURYA Zelviana '; Maksi Ginting; Sugianto '
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A  research has been conducted to determine the efficiency of flat plate collector  with  its cover  made from  glass. Solar water heaters  were  made  and  comprised of five essential components, namely a  protective box,  a  plate absorbent,  an  insulator,  an  iron pipe, and a  transparent cover. In this study, the water  was flown  into the water tank, through  a  collector, and then  the  water  flowed  into a  tube  collectors.  The  collectors  used  in this  study  were  flat plate  collectors  with one and two layer lid.  The  data  was  collected  within 14 days,  starting from  9.00 am until  3.00 pm  WIB  with one hour time interval.  The average  efficiency  for  a single  layer collector  was  42.62 % to 62.14 % , and for the two layer collectors  was  51.69 % to 85.74 % . These results  showed that the loss of heat on a flat plate collector with two layer was smaller than those of a single layer collector.
PENENTUAN KADAR AIR UBI KAYU MENGGUNAKAN PLAT KAPASITOR SEJAJAR Rizki Amelia; Maksi Ginting; Sugianto '
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A research has been conducted on Determining Moisture Content of Cassava by Using Parallel Plate Capacitor . This experiment was carried out by perforning two methods: gravimetric and parallel plate capacitor. Methods gravimetric method was carried out to determine the water content as a standard while parallel plate capacitor while the method was performed to measure current so that water content of the sample can be determined. The samples were consisted of two types; white cassava and red cassava, 10 cm long, 5 cm wide and 0,5 cm thick. The measurement results showed that the water content of cassava whites ranged from 48,8% to 56% and cassava red ranged from 55,1% to 57,5%. The greater the water content, the greater the current.
SISTEM PEMANFAATAN ENERGI SURYA UNTUK PEMANAS AIR DENGAN MENGGUNAKAN KOLEKTOR PALUNGAN Fatmawati '; Maksi Ginting; Walfred Tambunan
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A research has been conducted on  Solar Energy Utilization System  for Water  Heater using Trough Collector.  This research was carried out using  an experimental method by putting in place an opened  trough  collector  that  exposed to sunlight. The highest temperature  of collector produced  was 50,03°C  in  average  with an average temperature of water in the tank was 40,07°C at 1 PM, while the lowest temperature of collector was 39,14°C in  average with an average temperature of water  in the tank was  35,28°C at  10 AM.  The highest temperature of collector occured  at 1  PM, because  the intensity of solar radiation  at the time  reached  the  maximum  value.  The experimental results showed  that  the higher  the  intensity of solar radiation,  the higher the temperature of the water produced. The  temperature  of collector  was  also influenced  by  loss  heat of the collector  conduction.  The highest loss  heat by conduction  was 29,05  W at  1 PM, while the lowest loss heat by conduction was 16,85 W at 10 AM.
KONVERSI ENERGI ANGIN MENJADI ENERGI LISTRIK DALAM SKALA LABORATORIUM Febrielviyanti '; Maksi Ginting; Zulkarnain '
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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The convertion of wind energy into electrical energy in laboratory is experimentally conducted, to the source of the wind came from the fan, which then flowed into a tunnel. The generator used is bicycle dynamo with voltage output of 12 Volt. The wind speed against the tunnel lenght increases when the length are 0,90 m, 0,75 m, and 0,60 m, and decrease on 0,45 m and 0,30 m. The decrease of wind speed occur because of fan vibration, unregularity of tunnel surface area and turbulence. The wind speed is observed to be the largest on the length of 0,60 m with the wind speed at the level of the third button of fan its average speed of 4,16 m/s with generator power, torque and efficiency are 9,47× 10−3 Watt, 2,63× 10−1 Nm and 0,30% respectively. The current and voltage output produced by generator is AC current and voltage and resulte 72,85 mA dan 0,13 Volt, therefore to convert they into DC current and voltage output, effective current and voltage equation is applied which get 0,05 Ampere and 0,09 Volt.
KONVERSI ENERGI CAHAYA MATAHARI MENJADI ENERGI LISTRIK MENGGUNAKAN DIODA SILIKON 6A10 MIC Retno Wulandari; Maksi Ginting; Antonius Surbakti
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A study has been done on Solar Energy Conversion Into Electrical Energy Using Silicon Diode 6A10 MIC in order to determine electrical energy of diode by varying number of diode that used with and without convex lens. This study used an experimental method that comparing the energy generated from the series and paralel diodes circuits with and without lens, then measuring the intensity of the sunshine by using a simple pylheliometer. Current, voltage, and temperature measurements were performed every 20 minutes from 10:00 to 13:00 during 7 days of observation. In the series and parallel circuits using convex lens produced higher energy than those without convex lens, because of more intensity of solar energy absorbed for the circuit with convex lens. The highest energy obtained from the circuit with convex lens were produced by the series circuits of 10 diodes, with was 30,31x10-2 Joule at 13.00 pm, whereas the highest energy for the circuits without the lens was 14.42 w-2 Joule.
PENENTUAN KALOR DARI CAMPURAN ARANG TEMPURUNG KELAPA DENGAN CANGKANG KELAPA SAWIT DI TINJAU DARI PERBANDINGAN CAMPURANNYA Doni Pandra; Sugianto '; Maksi Ginting
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A research has been  carried  to determine the  calory  value of the  mixture of  coconut charcoal and palm oil shells  using an  experimental method. This experiment used a bomb callorimeter  to measure the physical parameters  of the sample (callory value, sulfur  total, total ash  and total moisture  of  content). Each sample was  treated  by  the same pressure and volume.  The samples  were  taken from two different materials, namely  charcoal  of  coconut shells  and oil palm shells.  Four different samples  were made from  combination of  grain size  ratio  of 60  :  40 and 40 : 60.  The sample  A and C  were mixture of  coconut shell charcoal  and  charcoal oil palm shells  with  60: 40 ratio, while the sample B and D were mixture of coconut shell Charcoal and charcoal oil palm shells for 40: 60 ratio. Results of the test showed the value of the physical parameters i.e callory value, sulfur  total, total ash and total moisture of content respectively  for the sample A  were  6.379  calories cal/g, 0.18%, 1.43%, and  8.00%,  for  the sample B  were 5.732 calories cal/g, 0.22%,  1.30% and  8,48 %,  for  the sample C were  5.787 cal/g, 0.20%,  10,91%, and 7.19%,  and  for  the  sample  D  were  5.395 calories cal/g, 0.20%, 11.24%, and 7,07%.  The sample  A  had  larger  grain density so that the  grain samples were  more solid.  The denser  of the material was  the higher the value of the heat from the charcoal.  From the overall data  obtained, it was  indicated  that  the sample  A had the highest quality value compared to the other samples.
Co-Authors Antonius Surbakti Defrianto Defrianto Doni Pandra Egi Yuliora Ersi Selparia Fatmawati ' Febrielviyanti ' Martha Rianna Minarni ' Nurhaili ' Retno Wulandari Riad Syech Rizki Amelia Romadona ' Salomo ' Sugianto ' Sugianto Sugianto Tengku Emrinaldi Walfred Tambuhan Walfred Tambunan Yayuk Widamarti Zelviana ' Zulkarnain '