Browsing by Author "Juandi"

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    Analisis Parameter Fisis Kolektor Biomassa Sebagai Pengering Kerupuk Singkong
    (2015-10-26) Juandi; Afriyani, Eka; Salomo
    Telah dilakukan penelitian tentang pemanfaatan limbah tempurung kelapa sebagai energi biomassa untuk pengeringan kerupuk singkong. Beberapa parameter fisis yang diukur adalah suhu disetiap sisi dinding alat pengering. Karakteristik suhu rata-rata dipengaruhi oleh energi biomassa, karena energi biomassa bekerja mentranfer panas ke ruang pengeringan. Hubungan karakteristik suhu rata-rata untuk rak 1 adalah y = 3E-06x4 – 0,003x3 + 0,020x2 – 0,178x + 61.00 dengan koefisien determinasi R² = 0,883, sedangkan untuk rak 2 adalah y = 3E-06x4 – 0,000x3 + 0,020x2 – 0,213x + 65,01 dengan koefisien determinasi R² = 0,925 . Nilai maksimum karakteristik laju panas yang hilang dipengaruhi oleh laju aliran panas, secara keseluruhan dari alat pengering terjadi pada laju panas yang hilang di bagian atas, sedangkan laju panas yang hilang minimum terjadi pada bagian belakang, hal ini dikarenakan laju aliran panas lebih banyak bergerak ke bagian atas sedangkan pada bagian belakang mengalami hambatan, misalnya hambatan oleh rak. Karakteristik efesiensi sumber energi biomassa dipengaruhi oleh laju udara yang masuk dan pembakaran limbah biomassa.
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    Analisis Parameter Fisis Kolektor Biomassa Sebagai Pengering Kerupuk Singkong
    (2015-12-17) Juandi; Afriyani, Eka; Salomo
    Telah dilakukan penelitian tentang pemanfaatan limbah tempurung kelapa sebagai energi biomassa untuk pengeringan kerupuk singkong. Beberapa parameter fisis yang diukur adalah suhu disetiap sisi dinding alat pengering. Karakteristik suhu rata-rata dipengaruhi oleh energi biomassa, karena energi biomassa bekerja mentranfer panas ke ruang pengeringan. Hubungan karakteristik suhu rata-rata untuk rak 1 adalah y = 3E-06x4 – 0,003x3 + 0,020x2 – 0,178x + 61.00 dengan koefisien determinasi R² = 0,883, sedangkan untuk rak 2 adalah y = 3E-06x4 – 0,000x3 + 0,020x2 – 0,213x + 65,01 dengan koefisien determinasi R² = 0,925 . Nilai maksimum karakteristik laju panas yang hilang dipengaruhi oleh laju aliran panas, secara keseluruhan dari alat pengering terjadi pada laju panas yang hilang di bagian atas, sedangkan laju panas yang hilang minimum terjadi pada bagian belakang, hal ini dikarenakan laju aliran panas lebih banyak bergerak ke bagian atas sedangkan pada bagian belakang mengalami hambatan, misalnya hambatan oleh rak. Karakteristik efesiensi sumber energi biomassa dipengaruhi oleh laju udara yang masuk dan pembakaran limbah biomassa
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    APLIKASI METODE GEOLISTRIK UNTUK MENENTUKAN RESAPAN AIR BAWAH TANAH DI KECAMATAN BUKIT RAYA KOTA PEKANBARU
    (2016-07-14) Juandi
    Persoalan air bersih adalah masalah yang selalu dialami di setiap daerah, salah satunya di daerah Kecamatan Bukit Raya Kota Pekanbaru yang mengalami perkembangan pembangunan yang menyebabkan perubahan fungsi lahan terbuka hijau menjadi lahan permukiman. Tujuan penelitian ini adalah untuk mengaplikasikan metode geolistrik agar dapat ditentukan nilai resapan air tanah. Metode yang digunakan dalam penelitian ini adalah metode geolistrik yaitu dengan cara pengukuran resistansi tanah menggunakan multitester selanjutnya dapat ditentukan nilai resistivitas tanah, kemudian dapat ditentukan sebaran litologi, selanjutnya dapat ditentukan nilai resapan tanah. Hasil penelitian menunjukkan bahwa nilai resistivitas hasil pengukuran di kelurahan Tangkerang Utara, Tangkerang Selatan dan Tangkerang Labuai berturut-turut adalah 122 ohm.m s/d 2700 ohm.m, 283 ohm.m s/d 1930 ohm.m dan 383 ohm.m s/d 2820 ohm.m dengan dominan litologi adalah pasir dan kerikil yang memiliki koefisien resapan 15%. Sebaran persentase resapan air tanah berturut-turut adalah 71,6%, 6%, 6,5% dan 15,88%, dan total resapan air tanah di Kecamatan Bukit Raya adalah 167.480,82 m3/tahun.
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    KLASIFIKASI MUTU BATU BATA BAKAR YANG DIPRODUKSI DI KOTA PEKANBARU BERDASARKAN PENGUJIAN KUAT TEKAN
    (2013-03-05) Sofyanto; Juandi; Sugianto
    The investigation of brick compressive strength has been done for 60 samples. Tests was carried out by the experimental method using a compressive strength testing machine (Compression Machine). The highest compressive strength for pressed brick from Tenayanraya was 0.86×107 N/m2 that fulfills grade 50 and the highest compressive strength brick for conventional brick is 1.128×10 7 N/m2 fulfill grade 100. The bricks that made in Rumbai has the highest compressive strength, that is 1.484×107 N/m2 which fulfill grade 100. The compressive strength of the conventional brick was 1.592×107 N/m2 which fulfill grade 150. Based on the results of testing, the entire samples produced from Tenayanraya and Rumbai agrees the Indonesian National Standard (SNI) SK-SNI-S-04-1989-F. The difference in compressive strength is not too large for Tenayanraya difference is 0.268×107 N/m2 and for Rumbai difference is 0.108×10 7 N/m2. The difference in brick compressive strength attributed to the differences in the processing of raw clay (clay) and the difference in location of the position of bricks during the combustion process
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    MENENTUKAN STRUKTUR LITOLOGI BAWAH PERMUKAAN BUMI DI KELURAHAN SIMPANG BARU KECAMATAN TAMPAN PEKANBARU MENGGUNAKAN METODE GEOLISTRIK DENGAN KONFIGURASI ELEKTRODA WENNER
    (2013-04-24) Suherman, Neldi; Juandi; Syech, Riad
    Research has been done to determine the structure of lithology subsurface at Simpang Baru Kecamatan Tampan Pekanbaru by using geoelectric method in Wenner electrode configuration. The research measurement of current and voltage obtained by using geoelectric equipment. Then, this data was processed by excell to acquire the apparent resistivity. Res2Dinv is used to get the real resistivity and, to describe the subsurface lithology. According to the research results, the lithology of rock for both South-to-North measurement in Setia Mulia housing and West-to-East measurement in Ataiya housing were acquired in 7 lithological types , there are sandy soil, dry gravel, sand stones, sand, Alluvium, gravel and argillaceous sandstone.
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    PENENTUAN BESARNYA LAJU INFILTRASI AIR OLEH TANAH DENGAN METODE SINGLE RING INFILTROMETER
    (2013-07-23) Wati, Widia; Juandi; Moriza, G.
    This research has been conducted to determine the infiltration rate of the soil water at Riau University, Tampan districs, Pekanbaru City, with a single ring infiltrometer method. Infiltration studies were conducted at 4 points and there are 2 measurements, each point 60 cm and 80 cm depth. Measurement results show the value of each drop of water by ground stager, then process with the excel program to obtain the value of the slope (m) and the value of the constant (k) of each measurement. Data is analized to obtain the rate of infiltration at any point. The results of the first observation point, Riau University Hospital, of 80 cm and 60 cm depth are 3,6 cm/hour and 3,6 cm/hour. The results of the second observation point, Rectorate of Riau University, of 80 cm and 60 cm depth are 3,6 cm/hour and 4,8 cm/hour. The results of the third observation point, Mini Stadium of Riau University, of 80 cm and 60 cm depth are 2,4 cm/hour and 3,6 cm/hour. The result of the fourth observation point, Riau Main Stadium, of 80 cm and 60 cm depth are 2,4 cm/hour and 3,6 cm/hour. The average value of infiltration shows that the University of Riau has land with moderate infiltration.
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    PENENTUAN KEDALAMAN AKUIFER BEBAS DENGAN MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI SCHLUMBERGER
    (2013-07-23) Hafis, Muhammad; Juandi; Moriza, Gengky
    A research has been conducted to determine the depth of unconfined aquifer in the Village Maharatu Marpoyan Damai District Pekanbaru City in two dimensions using geoelectrical method of Schlumberger configuration. Based on the results of measurements and data processing, there a four layers of the earth's surface. The first layer has a resisitivity value of 90.7 Ωm to 97.1 Ωm with thickness of 3.9 meters to 6.5 meters. This layer is interpreted as a soil cover layer consisting of a mixture of clay and sandy soil. The second layer has a value of 127.3 Ωm resisitivity to 209.3 Ωm with a thickness of 4.3 meters to 11.1 meters. This layer is interpreted as sand. The third layer has a value of 209.0 Ωm resisitivity with thickness 5.6 meters to 19.6 meters. There is layer of sandstone that can store and release water. This layer is interpreted as sand and gravel containing fresh water. This layer is unconfined aquifers located at a depths of 8.2 m up to 17.6 m. The fourth layer resisitivity value 3999.0 to 5092 Ωm and it is a clay layer that is difficult to pass water.
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    PENENTUAN PERMEABILITAS TANAH DI BEBERAPA KELURAHAN KECAMATAN TAMPAN KOTA PEKANBARU
    (2013-07-23) Julianti; Juandi; Moriza, G.
    The investigation of soil permeability in Tampan region Pekanbaru especially in Simpang baru intersection, Tuah Karya, Delima and Sidomulyo Barat has been done. This study aims to determine the soil permeability using the calculation of law Darcy, to find out the permeability or infiltration of area. Based on the results, every village has permeability depends on the type of soil. Simpang Baru has the greatest permeabilty value of 0,9789 cm/sec in the village because it contains a lot of sand, hence it can be categorized very fast. Meanwhile Delima area and Tuah Karya have low permeablity value from 0,4838 cm/sec to 0,5782 cm/sec corresponding to slow and very slow respectively. Sidomulyo Barat village has a sandy loam soil with permeability 0,909 cm/sec which is quite fast.
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    PENENTUAN POTENSI AIR TANAH DENGAN METODE PUMPING TEST
    (2013-07-23) Weni, F.; Juandi; Moriza, G.
    The value of soil water potential at Yepupa Regency and Griyo Puspito Regency subdisditrict of Tampan in pekanbaru by using Pumping Test method is reported. The result of the measurement shows the reduction value of water soil and explosion debit on every step, data were processed by using microsoft excel to achieve the value of aquifer loss (B) and the value of well loss (C) from every measured aquifer. Achieved data is processed by formula which is used to obtain well efficiency value percentage in every explusion debit level. The result of the first location at Yepupa regency produced 32% in maximum debit and 65% in minimum expulsion debit. The second location produced 63% in minimum expulsion debit and 30% in maximum. The third location of the research showed that well efeciency value in minimum expulsion debit reached 43% while in maximum expulsion debit the value became 16%. The fourth location produced 29% in minimum expulsion debit meanwhile 15% in maximum.
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    PENENTUAN TINGKAT KEBISINGAN LALU LINTAS DI JALAN TUANKU TAMBUSAI PEKANBARU
    (2013-03-05) Anggraini, Bima; Dewi, Rahmi; Juandi
    The measurement of the noise level at Tuanku Tambusai street Pekanbaru has been carried out. The noise observed was derived from motorcycles and vehicles. The measurement of the noise level started from 06.00 – 18.00 WIB for one week. The location of the research was denoted by 1,2 and 3 (in front Tri Bakti’s foundtion, horse statue and in front PPP office). The noise level were also studied as a function of distance from the source of noise. The intensity of noise level was measured using Sound Level Meter (SLM) SL 4112. The results of the research showed that the maximum value of noise level (on June, 26th 2012) occured 07.00 - 10.00 WIB on Sunday and the minimum value of noise level (on June, 21 th 2012) occured 14.00 – 17.00 WIB on Thursday for location 1. The measurement of the noise level as a function of distance (June 19th, July 16th, July 23th and July 30th 2012) was the value of noise level that declines with distance. The reduction of noise level caused by air absorption and surroundings. The noise level was based on different locations for the same time, the highest value of noise level occured in the location 3 than in the location 1 and 2 . The highest of noise level by caused vehicles. The result of the research showed that noise level is 85,584 dB. Based on the result of research, it is recommended that public school, hospital and house are not suitable to be built in that area since the noise level has exceeded the noise level threshold by MENKES N0.718/Men.Kes/Per/XI/198 that is 45-55 dB
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    PENENTUAN TINGKAT REDUKSI KEBISINGAN OLEH PAGAR BUATAN DI SEKITAR BANGUNAN RUMAH PENDUDUK DI KOTA PEKANBARU
    (2016-02-01) Asti, Maya; Juandi; Krisman
    A has been conducted research on noise reduction using artificial fence on houses Measured noise levels were generated by vehicles passing through which is on the cipta karya street and suka karya street in pekanbaru. Distance sound level meter to the noise source the road was set to be the same. The measurements using two sound level meter were performed in 9 different points. The results showed that a home with fencereceived less noise than that of home without fence. If has been seen that the artificial fences could reduce the noise generated by vehicles. The noise without barrier at suka karya street was 66,897 dBA to 70,980 dBA and a was 60,482 dBA to 64,464 dBA far the home with fence to the north-south direction. The noise of home without barrier in cipta karya street was 59,995 dBA to 65,548 dBA with barrier in cipta karya street was 56,800 dBA to was 59,809 dBA to the north-south
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    PREDIKSI FLUKTUASI AIR BAWAH DENGAN MENGGUNAKAN METODE ANALITIK
    (2020-05) Rijalul; Juandi
    Groundwater is one source of good water as widely used by peoples in various activities. In modern era, peoples exploit groundwater by using technology, one of them is the society in West Sidomulyo region. Community activities in the area of West Sidomulyo is around environment of hospitals, farmer and education. This condition can be used for educational about the importance of managing groundwater so as to prevent an imbalance in groundwater. Some of the causes groundwater an imbalance is any the disrupted like over-functioning area of the green space and over-exploitation. Efforts to maintain the groundwater balance is to integral the quantity of groundwater. Research on groundwater fluctuations is very necessary for provide information to all components of society and government. The purpose of this study is to show the head of groundwater fluctuations, while the method used is analytical methods with input data on rainfall, depth of groundwater, water diffusion over a period of eighteen years. The results obtained show that the head fluctuation provides a graph has a cycle and show changes each year and groundwater is always changing in every state of the region
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    Prediksi Kedalaman Akuifer Bebas Rata-Rata Studi Kasus Kecamatan Rumbai Kota Pekanbaru
    (2015-10-26) Juandi; Rofeah; Defrianto
    Penelitian tentang prediksi hydraulic head akuifer bebas rata-rata kecamatan Rumbai kota Pekanbaru telah dilakukan dengan menggunakan metode beda hingga. Tujuan penelitian ini adalah untuk menganalisis kondisi akuifer bebas tahun 2016 sampai dengan 2019 di kecamatan Rumbai Kota Pekanbaru menggunakan program komputer aplikasi MATLAB versi 7.0. Hasil penelitian dapat di informasikan bahwa kondisi akuifer bebas di kecamatan Rumbai adalah sebagai berikut: Prediksi kondisi akuifer bebas di kecamatan Rumbai tahun 2019 relatif lebih baik dibandingkan tahun 2016 hal ini disebabkan karena aktivitas pengembangan lahan yang berkurang.
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    Prediksi Kedalaman Akuifer Bebas Rata-Rata Studi Kasus Kecamatan Rumbai Kota Pekanbaru
    (2015-12-17) Juandi; Rofeah; Defrianto
    Penelitian tentang prediksi hydraulic head akuifer bebas rata-rata kecamatan Rumbai kota Pekanbaru telah dilakukan dengan menggunakan metode beda hingga. Tujuan penelitian ini adalah untuk menganalisis kondisi akuifer bebas tahun 2016 sampai dengan 2019 di kecamatan Rumbai Kota Pekanbaru menggunakan program komputer aplikasi MATLAB versi 7.0. Hasil penelitian dapat di informasikan bahwa kondisi akuifer bebas di kecamatan Rumbai adalah sebagai berikut: Prediksi kondisi akuifer bebas di kecamatan Rumbai tahun 2019 relatif lebih baik dibandingkan tahun 2016 hal ini disebabkan karena aktivitas pengembangan lahan yang berkurang.