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Analisa Beban Kalor pada Ruang Bagian Kepegawaian Rektorat Universitas Nusa Cendana Oematan, Abraham; Tarigan, Ben V.; Jafri, Muhamad
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 2 No 2 (2015): Oktober 2015
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (106.124 KB) | DOI: 10.35508/ljtmu.v2i2.492

Abstract

Abstrak Perhitungan beban kalor perlu dilaksanakan terlebih dahulu sebelum dilakukan perencanaan sistem pengkondisian udara di suatu ruangan. Hal ini diperlukan karena besarnya beban kalor sangat berpengaruh terhadap kapasitas pendinginan yang dibutuhkan, sehingga kenyamanan dapat diperoleh. Salah satu ruangan yang menggunakan AC adalah ruang Kepegawaian Rektorat Undana. Kapasitas AC yang terpasang adalah 16 PK. Berdasarkan rekening listrik bulanan di gedung Rektorat Undana, biaya pemakaian listrik berkisar sekitar Rp.801.301.531.- per tahun atau sekitar Rp.66.775.128.- per bulannya. Sehingga perlu dilakukan pengamatan kembali terhadap Intensitas Konsumsi Energi (IKE) listrik dari AC apakah masih hemat atau tidak. Berdasarkan hasil penelitian, beban kalor pada ruang tersebut berkisar antara 175.491,3685 Btu/h sampai dengan 306.961,6477 Btu/h. Namun kondisi yang terjadi didapati ada jendela yang terbuka akibatntya infiltrasi beban kalor pada ruang tersebut besar, sehingga membuat 16 PK AC yang terpasang menyerap arus listrik yang besar akibatnya IKE dari 16 PK sebesar 31,06 kWh/m2/bulan, tergolong sangat boros. Apabila tidak ada jendela yang terbuka maka beban kalor puncak yang seharusnya terjadi adalah 125.434,6370 Btu/h, sehingga AC yang seharusnya beroperasi adalah 14 PK. Nilai IKE dari 14 PK adalah 6,63 kWh/m2/bulan tergolong dalam kriteria sangat efisien.
Perancangan Tabung Vaksin Hewan Berbahan Dasar Polivinil Klorida (PVC) dengan Mengunakan Elemen Peltier Dae Panie, Marthen M.; Limbong, Ishak S.; Tarigan, Ben V.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 2 No 2 (2015): Oktober 2015
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.119 KB) | DOI: 10.35508/ljtmu.v2i2.499

Abstract

ABSTRAK Pemberian vaksin adalah salah satu cara untuk mencegah penyakit pada hewan ternak sebagai anti body. Vaksin ini sangat rentan karena tidak boleh terkena sinar matahari secara langsung dan tidak boleh dibekukan. Untuk beberapa jenis vaksin harus disimpan pada temperatur 2oC - 8oC. Kendala terberat ketika harus membawa vaksin ke daerah-daerah terpencil yang sulit dijangkau dan tidak memiliki infrastruktur utama seperti jalan yang memadai. Perencanaan tabung pendingin ini memiliki dimensi tabung yang digunakan berukuran 3’’ dan 4’’. Tinggi tabung 3’’ adalah 14,6 cm dan tinggi tabung 4’’ adalah 19,8 cm berbahan dasar polyvinyl chloride. Hasil perencanaan diperoleh tegangan tarik yang terjadi pada selubung tabung pendingin 38,144 kg/. Tegangan tarik pada selubung ruang isolator 68,766 kg/. Tegagan geser penutup ruang pendingin 0,00093 kg/. Tegangan geser pada penutup tabung kg/. Tegangan tekan yang terjadi untuk logam las 8,656 kg/. Tegangan tarik ijin baut 74 N/mm2. Tegangan geser ijin baut 44,4 N/mm2. Diameter baut yang dibutuhkan 0,278 mm.
Rancang Bangun Mesin Pencetak Pakan Ikan Menggunakan Metode VDI 2221 rae, matias; Mangesa, Duad Pulo; Tarigan, Ben V.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 9 No 01 (2022): April 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v9i01.6972

Abstract

ABSTRACT A reality for today's business world, that many small and medium industries and households are trying to build themselves to meet the growing need for fish feed. Based on this, it is appropriate that the production equipment owned must be optimized to support the effectiveness and efficiency of the fish feed production process. The VDI 2221 method uses a systematic approach to design for engineering systems and engineering products. This VDI 2221 method makes it easier for designers to make a product so that product design can be achieved. The author has a design to make a fish feed printing machine in the hope that it can be used as an alternative to produce products faster and more efficiently. The results of the design using the VDI 2221 method of fish feed printing machine are, using a motor power of 1 HP = 750 watts with a tool capacity of 42 kg/hour. Keywords: design, VDI 2221 method, feed printing device.
Analisa Potensi Gelombang Laut sebagai Sumber Energi Terbarukan Menggunakan Perangkat Oscillating Water Column (OWC) Di Wilayah Perairan Laut Timor Jasron, Jahirwan Ut; Mangesa, Daud P.; Boimau, Kristomus; Tarigan, Ben V.; Maliwemu, Erich U.K.; Salombe, Mexin
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 9 No 01 (2022): April 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v9i01.7269

Abstract

An in-depth study is needed on the use of alternative energy to overcome human energy needs. This study aims to analyze the potential of ocean wave energy that can be converted by the "Oscillating Water Column" device on the Kolbano coast as a renewable energy source. Kolbano Beach is located in Kolbano Village, Kolbano District, and TTS Regency (South Central Timor) East Nusa Tenggara Province with an area of​approximately 17 sq km stretch of Kolbano beach area facing the Indian Ocean so that the consistency of the wave height produced is quite large. The wave height is large enough to be used as an alternative power plant. This research was conducted in Kolbano coastal waters, data on wave height and wind speed from BMKG (Metrology, Climatology, and Geophysics Agency) Kupang City in 2019 – 2021m with wave heights ranging from 0.31 to 2.3 m and wind speeds ranging from 1 .05 to 8.48 Watts.
Analisis Pengaruh Variasi Massa Material Arang Terhadap Proses Desalinasi Air Laut Tenaga Surya Ojan, Alfond Fasselis; Tarigan, Ben V.; Adoe, Dominggus G. H.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 9 No 01 (2022): April 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v9i01.8064

Abstract

Desalination is the process of distilling seawater using a heat source from solar energy to obtain fresh water. Therefore, one of the methods used to increase the results of the seawater desalination process is to make a tool using solar energy and charcoal material. This research was conducted to determine the effect of using charcoal material on the seawater desalination process. The use of charcoal material is expected to increase the absorption of heat energy and accelerate the evaporation process of seawater. In this study, the highest efficiency was obtained in basin I with a mass of 500 grams of charcoal, namely 5.393% with 70 ml of water produced, followed by basin IV without using charcoal material with an efficiency of 6.116% with fresh water produced of 60 ml, followed by basin IV. II with a mass of 400 grams of charcoal obtained an efficiency of 1.585% with 59 ml of water produced. And in basin III the efficiency and fresh water produced is less, namely 0.004% and the water produced is 41 ml
Pengaruh Ketebalan Briket Arang terhadap Perubahan Temperatur dan Kelembaban pada Desalinasi Surya Sistem Interfacial Heating Siagian, Saut Ronny Tuah; Jafri, Muhamad; Tarigan, Ben V.; Riwu, Defmit B. N.; Adoe, Dominggus G. H.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 9 No 02 (2022): Oktober 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v9i02.8778

Abstract

Solar desalination is the process of reducing brine salinity by using heat from the sun to produce fresh water. Distillation is one of the traditional solar desalination methods, but it has a low evaporation rate. Recently, interfacial solar evaporation by thermal localization at the liquid interface has been proposed as a promising alternative to evaporation. In this study, briquettes were investigated as as the interface solar absorber to increase vapor production. Experiments were carried out in 4 single-slope type distillers for 8 hours under clear sunlight using 10, 15 and 20 mm thick briquettes. For comparison, we also looked at distiller (basin) with no charcoal. Temperatures and humidity were measured at several position within the basin to identify factors contributing to seawater evaporation. We found that the vapor production increases when temperature is high and humidity is low. While condensation is highly dependent on humidity, high humidity is able to make water vapor molecule reach its dew point faster. This condensation process will greatly impact the productivity of the distillate.
Rancang Bangun Reflektor Cahaya Matahari Dengan Cermin Datar Berbasis Mikrokontroler Untuk Alat Solar Pasif Desalinasi Pell, Yeremias M.; BOYMAU, MAIKEL WAHYUDI; Tarigan, Ben V.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 9 No 02 (2022): Oktober 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v9i02.9334

Abstract

The research has been conducted on design solar light reflector with flat mirror based on microcontroller for passive solar desalination device. The purpose of this research is to design solar light reflector using flat mirror based on microcontroller for passive solar desalination device that can function properly so that it can be used by coastal communities who need fresh water. The method used in this research is design. This research was started by design the reflector and reflector frame, design the servo mount, design the connecting arm and testing using sea water. The results showed the design of microcontroller-based solar reflector device for desalination equipment with dimensions of 60 cm long, 30 cm wide, and 55 cm high with drive system using Arduino UNO and driving motor using 25 kg DS3225 servo motor and with three reflector opening angles of 30⁰, 45⁰ and 60⁰ which move automatically every 2 hour and the production of fresh water produced in the 6 hour desalination process is 940 ml.
Pelatihan Manajemen Usaha Kelompok Pengrajin Tenun Ikat Khas NTT Selan, Rima; Ada Kale, Ariency K.; Bale, Jefri S.; Tarigan, Ben V.
Jurnal Pengabdian Kepada Masyarakat Undana Vol 15 No 1 (2021): JUNI 2021
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jpkmlppm.v15i1.4881

Abstract

Abstract - This community partnership program aims to empower groups of weaving craftsmen in Sabu Tenun Village so that they can develop their business. The development carried out is from the aspects of business management and marketing. Partners in this Community Partnership program are the Kampung Sabu Weaving Group. The implementation team provides training to partners on business management and online product marketing. It is hoped that through this activity partners can have an entrepreneurial spirit and can carry out the marketing process online. This is so that the woven products produced can have a wider market, not only on display in galleries. The targeted output is that partners know better-organized marketing and management processes so that productivity increases. Abstrak – Program kemitraan masyarakat ini bertujuan melakukan pemberdayaan kepada kelompok pengrajin tenun di Kampung Tenun Sabu agar dapat mengembangkan usahanya. Pengembangan yang dilakukan adalah dari aspek manajemen usaha dan pemasaran. Mitra dalam program Kemitraan Masyarakat ini adalah Kelompok Tenun Kampung Sabu. Tim Pelaksana memberikan pelatihan kepada mitra tentang manajemen usaha dan pemasaran produk secara online. Diharapkan lewat kegiatan ini mitradapat memiliki jiwa kewirausahaan dan dapat melakukan proses pemasaran secara onlne. Hal ini bertujuan agar produk tenunan yang dihasilkan dapat memliki pasar yang lebih luas, tidak hanya dipajang di galeri. Luaran yang ditargetkan adalah mitra memiliki pengetahuan tentang proses manajemen serta pemasaran yang lebih terorganisir sehinggga terjadi peningkatan produktivitas