Browsing by Author "Ginting, Maksi"

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    ANALISA BESAR PERPINDAHAN KALOR PADA SISTEM PEMBANGKIT LISTRIK TENAGA UAP INDUSTRI BIODIESEL PT. CILIANDRA PERKASA, DUMAI
    (2016-02-01) Oktimalia, Anggita; Ginting, Maksi; Syech, Riad
    The “Major analysis of heat transfer has been investigated at Steam Power of Biodiesel industry PT. Ciliandra Perkasa, Dumai” by using a field survey. The survey is conducted by observing the flow rate, pressure and temperature in the steam power plant systems. The observations calculate the enthalpy, heat required to convert water into steam and steam values that go into effect on the power turbine electrical output. Calculation results obtained turned out great enthalpy economizer entering the greatest value is 2959.1 kJ/kg and the smallest one is 2950.2 kJ/kg, while the incoming enthalpy at most major turbine is 3350.8 kJ/kg and the smallest one is 3235.6 kJ/kg. The highest enthalpy output at cattle is 3344.3 kJ/kg and the smallest one is 3216.5 kJ/kg, while the highest enthalpy output in turbine is 3286.6 kJ/kg and the smallest one is 3214.4 Kj/kg. The largest heat required to convert the water into steam is the 12816.9 MJ/h, while the smallest one is 7401.7 MJ/h. A greatest value that goes to the turbine steam is 0.00867 kg/kWh, while the smallest one is 0.00832 kg/kWh and the greatest power is 2.009 MW, while the smallest one is 1.766 MW
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    DESTILASI AIR LAUT MENJADI AIR TAWAR MENGGUNAKAN SISTEM TIPE KABINET DENGAN MEMANFAATKAN ENERGI SINAR MATAHARI
    (wahyu sari yeni, 2019-04-30) Foriani, Yulian; Ginting, Maksi
    Distillation of seawater into fresh water by using cabinet-type tools by utilizing sunlight energy has been successfully used for the experimental method where the stage of manufacture and manufacture of equipment was carried out in March at the Jakarta, Riau. The distillation process of seawater produces fresh water distillates. The sample was obtained from the beach of Nirwana, West Sumatra as much as 200 liters. This sample is processed to obtain distillate by placing the device in an open location which will be exposed to direct sunlight. This sea water distiller is used in appropriate technology-based research that is technology that fits the needs of the people living around the coastal area. This research was carried out for 8 days of observation in sample I, the experimental results showed that the ambient temperature would increase at 12.00 WIB, with the intensity of solar radiation amounting to 251 W/m2 and a brightness index of 68 %. The lowest intensity of solar radiation occurs at 09.00 WIB by 120 W/m2 with a brightness index of 57 % and 7 days of observation in sample II, the experimental results show that the ambient temperature will increase at 15.00 WIB, with the intensity of solar radiation of 156 W/m2 and brightness index of 58 %. The lowest intensity of solar radiation occurs at 11.00 WIB by 115 W/m2 with a brightness index of 51 %. This distillate process produces 42870 milliliters of fresh water that has met consumption standards. The average volume of fresh water obtained per day is 2873 milliliters for 6 hours of research. The highest volume in the study at 12.00 WIB was 7129 milliliters. There sults of this experiment show that the higher the intensity of solar radiation, the higher the ambient teperature and evaporation temperature and the more volume of fresh water obtained
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    PEMANFAATAN ENERGI SURYA UNTUK MEMANASKAN AIR MENGGUNAKAN KOLEKTOR PARABOLA MEMAKAI CERMIN SEBAGAI REFLEKTOR
    (2016-10-12) Razak, Nafisha Amelya; Ginting, Maksi; Syech, Riad
    Research on utilization of solar energy for heating water using parabolic collectors equiped with mirror that used as reflectors have been done. Parabolic collectors were placed on direct sunlight with 500 grams, 750 grams and 1000 grams mass of water in the container during 15 days of observation. The observations were carried out at time interval of 30 minutes from 10.00 am until 15.00 pm. The results of research showed that for mass of 500 grams, 750 grams and 1000 grams produced the highest temperature with the values respectively of 91.2 °C, 90.6 °C and 95.4 °C with radiation intensity 572.8 W/m2, 589.7 W/m2, and 612,3 W/m2. The magnitude of solar radiation intensity affects the amount of heat received by water, heat received by container and combined heat of water and container.
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    PEMBUATAN ALAT PENGERING SURYA TIPE KABINET BERPENUTUP KACA DAN PLASTIK TRANSPARAN
    (2016-02-04) Nurhaili; Ginting, Maksi; Malik, Usman
    The fabrication of solar dryers for agricultural products such as cassava and bananas has been stadied. A tool created has two variations, namely a cover glass and a plastic cover. Collectors used are flat plate and its constituent components other form of protective box lid askew. Drying is carried out from 09.00 am to 13.00 pm in the interval of one hour and three times the turnover of materials. The results show when the drying chamber is empty, the highest temperature is 750C for tray 1 and the lowest temperature is 33.500C for tray 3. The method is continued refueling cassava and bananas by slicing material with a thickness of 2 mm placed the above tray and dried, then it is measured at wet and dry mass from beginning until finishing. The lowest wet mass is 144.93 g of cassava material contained in the tray 1 with water content of 4.11%, and 170.76 g banana on the tray 1 with water content of 4.38%. The brightness index value is 31.20% to 38.96%.
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    PEMBUATAN ALAT PENGERING SURYA UNTUK HASIL PERTANIAN MENGGUNAKAN KOLEKTOR BERPENUTUP PRISMA SEGITIGA
    (2014-03-27) Salomo; Ginting, Maksi; Akbar, R
    Telah dibuat alat pengering tenaga surya untuk mengeringkan singkong dan pisang, singkong diiris melintang dan pisang diiris membujur dengan ketebalan sama, yaitu 2 mm. Pada penelitian ini kolektor berpenutup prisma segitiga yang dihubungkan ke ruang pengering. Udara panas dari kolektor bergerak ke ruang pengering dan dipercepat oleh ventilator yang ada di atas ruang pengering. Penelitian dilakukan mulai pukul 09.00 WIB hingga 15.00 WIB dalam selang waktu pengamatan satu jam, dan dilakukan untuk ruang pengering dalam keadaan kosong dan berisi bahan. Ketika dilakukan pengujian ruang pengering tidak berisi bahan suhu terendah 43,0 oC terjadi pada dulang No.3, saat pukul 09.00 WIB dan tertinggi 52,0 oC pada dulang No.1, ketika jam 12.00 WIB. Massa kering rata-rata singkong di dalam ruang pengering setelah 3 (tiga) hari pengamatan adalah 183,00 g dengan kadar air 2,00 % dan di luar ruang pengering bermassa 227,00 g dengan kadar air 6,00 % dari 500 g bahan yang dikeringkan. Massa kering rata-rata pisang di dalam ruang pengering setelah 3 (tiga) hari pengamatan bermassa 183,50 g dengan kadar air 2,40 % dan di luar ruang pengering sebesar 217,00 g dengan kadar air 6,84 % dari 500 g bahan yang dikeringkan.
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    Pembuatan Dan Pengujian Alat Pengering Surya Tipe Kolektor Berpenutup Miring Serta Menganalisa Kecepatan Pengeringan Singkong
    (2015-07-04) Ginting, Maksi
    Alat pengering dibuat dari tipe penguat panasnya berupa kolektor berpenutup miring. Bahan yang digunakan sebagai kerangka alat pengering adalah kayu dan penutup serta dinding ruang pengering dari plastik transparant. Kelembaban terendah didalam ruang pengering sewaktu kosong dan berisi bahan adalah 34,0% dan 35,0%, yaitu pada jam 13.00 WIB. Bahan yang digunakan adlah singkong yang dipotong mcUngkar dengan ketebalan sekitar 2 mm. Massa bahan rata-rata setelah dikeringkan selama 8 jam pengeringan dengan alat pengering dan tanpa alat pengering adalali 453 gram dan 527 gram dari 1000 gram bahan yang dikeringkan dengan intensitas rata-rata 493 w/m^. Massa setelah enipat hari pengeringan masing-masing adlah 389 gr dan 408 gr dengan intensitas rata-rata 491 wW.
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    PENENTUAN EFISIENSI DARI ALAT PENGERING SURYA TIPE KABINET BERPENUTUP KACA
    (2016-02-01) Meilisa; Ginting, Maksi; Surbakti, Antonius
    The efficiency of enclose glass cabinet solar dryer has been determined experimentally. Solar dryer is composed of main protector box component an insulator absorber plate and a cover transparent. The colector used the enclose glass plane plat collector. Data was collected within 14 days starting from 09.00 AM until 3.00 PM with one hour time interval. This experiment was done by placing the solar dryer on the collector surface perpendicular to solar radiation, and then measured the beam radiation intensity, absorption, transmitivity and efficiency of solar collector by using a lux meter and mercury thermometer. The value of average efficiency for solar dryer type glass enclosed cabinet is from 30,47 % until 56,13 %. This shows that the efficiency value relies on radiation achieved to the collector
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    STUDI KELAYAKAN PENGGUNAAN SEL SILIKON SEBAGAI PENGUBAH ENERGI MATAHARI MENJADI ENERGI LISTRIK
    (2014-03-27) Tambuhan, Walfred; Ginting, Maksi; Minarni; Purnama
    Telah dilakukan penelitian tentang “Studi Kelayakan Penggunaan Sel Silikon sebagai Pengubah Energi Matahari menjadi Energi Listrik” dengan metoda eksperimen. Eksperimen dilakukan dengan cara merangkai dioda silikon selinder ke rangkaian bentuk paralel dan bentuk rangkaian seri pada pelat rangkaian PCB, kemudian rangkaian ini dimasukkan kedalam suatu kotak terbuat dari kayu yang diisolasi dengan isolator kardus. Kotak tersebut ada yang dibuat terbuka tanpa pelat kaca dan ada yang dibuat tertutup dengan pelat kaca kemudian diletakkan ke tempat yang bebas cahaya matahari jatuh dengan mengarahkan dioda silikon tegak lurus terhadap cahaya matahari jatuh lalu diamati arus listrik yang dihasilkan dioda silikon setiap selang waktu 10 menit. Hasil yang diperoleh, arus listrik dihasilkan bernilai maksimum adalah untuk dioda sambungan paralel dan terbuka tanpa penutup pelat kaca sebesar 102,9 x 10-2 milli ampere dengan energi listrik rata-rata yang dihasilkan 35,2 x 10-3 Joule pada temperatur 39oC sedangkan arus listrik minimum dihasilkan dari rangkaian dioda bentuk seri tertutup dengan pelat kaca sebesar 20 mikro ampere dengan energi listrik rata-rata dihasilkan sebesar 51 x 10-5 Joule. Dari hasik-hasil tersebut yang lebih bagus dan lebih layak digunakan untuk mengubah energi matahari menjadi energi listrik adalah dioda silikon bentuk sambungan paralel terbuka tanpa memakai penutup pelat kaca.
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    TEKNOLOGI PEMANAS AIR MENGGUNAKAN KOLEKTOR TIPE TRAPEZOIDAL BERPENUTUP DUA LAPIS
    (2016-10-12) Wardana, Ayu; Ginting, Maksi; Sugianto
    Research on “Technology of Solar Energy for Water Heater Using Double Layers Lid of Trapezoidal Collector” have been done. Trapezoidal collector was lied in the rech on of east-west with respect to sun path, so that sunlight directly come into collector. Observations were carried out for 6 hours and date were recorded every 15 minutes for 14 days. The highest intensity for 14 days research was 503.19 W/m2 which was obtained at 13:00 pm and the lowest intensity accurate at 09:00 Am was 312.13 W/m2. The highest temperature of collector was 66.29 ⁰C accurate at 12:00 pm and the lowest temperature was 33.39 ⁰C accurate at 09:00 Am. The highest container temperature that starting to flow the water out was 84,00 ⁰C which accurate at 10:00 Am and water temperature in container was 37,13 ⁰C which occured at 15:00 pm. The amount of hot water produced using trapezoidal collector was 36,87L/day, while heat lost due to conduction process through the bottom was 2,348 J/s which occurred at 12:00 Am anf through other side was 489.08 J/s accurate at 12:00 Am.