Angkasa: Jurnal Ilmiah Bidang Teknologi

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ISSN / EISSN : 2085-9503 / 2581-1355
Published by: SENATIK (10.28989)
Total articles ≅ 129
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Asih Pujiastuti, Astika Ayuningtyas, Anggraini Kusumaningrum, Adetya Dyas Saputra
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 13; doi:10.28989/angkasa.v13i1.807

Abstract:
Micro, Small and Medium Enterprises (MSME) can be defined as a productive business that can be owned by individuals or business entities and has met the criteria as a micro business. UMKM is one of the spearheads of an independent economy that has great development potential, so that the existence of MSMEs can strengthen the people's economy. One area that has a lot of MSMEs is Gunungkidul Regency which is located in the Special Region of Yogyakarta. There are many obstacles in the UMKM business in Gunungkidul Regency, one of which is in marketing and product management. Support from the technological side is needed to increase the pace of the MSME economy. One form of technology support is an inventory application that can help MSMEs in managing product stocks and supporting product marketing. Applications named Nawani and Nukoni can make it easier for MSME business players in marketing products. Nawani functions to market UMKM products and perform stock management, while Nukoni functions as a catalog for MSME products. Based on the test obtained using a Likert Scale, Nawani has a score of 78.8% for the Function Test and the UI / UX Test of 69.6%, while Nukoni has a score of 85.3% for the Function Test and the UI / UX Test for 70.2%, so that both applications are running and suitable for use by both parties.
, Nurul Lathifah
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 13; doi:10.28989/angkasa.v13i1.837

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Transportation, as a part of the supply chain process, contributes to carbon emission which leads to climate change and global warming. This environmental issue gives an impact to decisions regarding the supply chain of a company. One way to deal with this issue is by analyzing their vehicle routing problem. In this study, the issue about routing problems in green supply chain by considering the heterogeneous fleet is being discussed. One variant of Green Vehicle Routing Problem (GVRP) reviewed in this paper is about Heterogeneous Alternative Fuel Vehicles for Green Vehicle Routing Problem (HAFVGVRP). The purpose of this study is to review the development of GVRP with heterogeneous alternative fuel vehicles and the gap or state-of-the-art on existing researches. The review was classified according to the objectives, type of fleet, and solution used. Moreover, this study also presents the trend and direction of further research.
Dewi Sinta, Fahriza Nurul Azizah,
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 13; doi:10.28989/angkasa.v13i1.916

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Penelitian ini bertujuan untuk mengetahui pengaruh dari refiner time (waktu penggilingan ulang) terhadap kualitas tissue.Data yang dikumpulkan adalah data primer saat proses pembuatan tissue (handsheet).Waktu untuk LBKP (5, 10 dan 25) menit dan NBKP (10, 30 dan 40) menit. Masing-masing pulp dibuat sebanyak 2 buah. Kemudian dilakukan pengujian di Laboratorium QC dengan faktor pengujian yang menentukan kualitas tissue. Seperti:freeness(derajat giling), thickness(ketebalan), machine direction tensile(kekuatan), basisweight (berat), elongation (daya mulur) dan porosity(kerapatan serat). Hasil yang didapat jika semakin lama refiner time,maka (1) freeness akan semakin rendah, (2) thickness akan semakin tinggi, (3) measure direction tensile akan semakin tinggi, (4)elongation akan semakin tinggi dan (5) porosity akan semakin tinggi. Namun tidak akan memengaruhi nilai dari basis weight. Keywords Tissue(Handsheet),Refiner Time, Quality Control References R. Sangkay, "Strategi Pemasaran kreatif Yang Diterapkan di PT Otomodo Manado Town Square," Jurnal Riset Bisnis dan Manajemen, vol. V, no. 4, pp. 639-656, 2017. H. Holik, Handbook of Paper and Board, Weinheim: Wiley VCH Verlag GmbH & Co.KGaA, 2006. H. Sixta, Handbook of Pulp, Weinheim: Wiley VCH, 2006. H. Rachmawati and T. Hidayat, "Efektivitas Berbagai Indikator Penggilingan untuk Memprediksi Kualitas Kertas," Jurnal Selulosa, vol. I, no. 2, pp. 72-80, 2011. K. Syamsu, H. Roliadi, K. P. Chandra and A. J. Arsyad, "Kajian Proses Produksi Pulp dan Kertas Ramah Lingkungan dari Sabut Kelapa," Jurnal Teknologi Pertanian, vol. IX, no. 1, pp. 16-25, 2014. R. M. Alfathy, M. P. Aji and Sulhadi, "Analisis Variasi Warna Terhadap Kualitas Daya Serap dan Kuat Tarik Tissue Napkin Paper," Jurnal Ilmu Pendidikan Fisika, vol. II, no. 1, pp. 25-27, 2017. S. Bahri, "Pembuatan Serbuk Pulp dari Daun Jagung," Jurnal Teknologi Kimia Unimal, vol. IV, no. 1, pp. 46-59, 2015. Y. Setiawan, S. Purwati, A. Surachman, R. I. W. and K. J. Pramono, "Pemanfaatan Plastik Limbah Reject Industri Kertas untuk Bahan Bakar," in Seminar Teknologi Pulp dan Kertas, Bandung, 2015. R. Masriani and T. Hidayat, "Perancangan Metode Pengukuran Kemampuan Daur Ulang Kertas," in Seminar Teknologi Pulp dan Kertas, Bandung, 2015. Falahudin, Irfan and N. Aini, "Pengaruh Penambahan Bahan Chemical Wet Strength dan Dry Strength dalam Proses Pembuatan Tissue Napkin 18 GSM," Program Studi S-1 Teknologi Pengolahan Pulp dan Kertas, Fakultas Vokasi, Institut Teknologi Sains Bandung, Bandung, 2014. H. Risdianto, S. K. Wirawan and S. Sugesty, "Aplikasi Lakase pada Proses Refining Pulp," Jurnal Selulosa, vol. IX, no. 2, pp. 65-74, 2019. D. Wikanaji and T. Trisnawati, "Pengembangan Serat Dan Efisiensi Energi Pada Kombinasi Refining Konsistensi Tinggi Dan Rendah," Jurnal Selulosa, vol. I, no. 1, pp. 8-14, 2011. http://dx.doi.org/10.28989/angkasa.v13i1.916 Refbacks There are currently no refbacks.
Rizky Arden, Neno Ruseno, Yuda Arif Hidayat
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 13; doi:10.28989/angkasa.v13i1.784

Abstract:
Cargo plays a very important role in the aviation industry as a supporting revenue. In Airline X, cargo supports the revenue by 4% - 6% of the total revenue. There are opportunities to optimize the cargo compartment in Airline X by analyzing every agent involved in the purpose to know the optimum cargo loaded into the compartment using Agent-Based Modelling. The method used in this research is Rejection Sampling in Monte Carlo and Agent-Based Modelling. In addition, the theory used in this research is distribution function, to determine what type of distribution that represents the agent behavior. The final result shows that with the predetermined number of iterations, which is 300 iterations, the optimal value was obtained base on the convergent result. On the other hand, the distribution of passenger and baggage described as the Gaussian Distribution Function, while the distribution of EBT described as the Negative Exponential Distribution Function. These distributions represent agent behavior.
Hans Valiancius Ongkowijoyo, Neno Ruseno
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 13; doi:10.28989/angkasa.v13i1.783

Abstract:
The aim of this research is to optimise the utilization of third runway in Soekarno Hatta International Airport by giving recommendation based on calculation and simulation of runway capacity. The flight schedule data in Soekarno-Hatta International Airport was taken from flightradar24.com for duration of 1- 6 January 2020. The calculation of the runway capacity uses time space analysis method and simulation in BlueSky ATM Simulator. The highest runway capacity of 44 flights per hour is reached when the runway operates as take-off only or landing-only configuration. The simulation is conducted for 3 scenarios: 2 runways configuration, 3 runways configuration and 3 runways configuration with modification. The log data of simulation is analysed using Python programming to know the separation for every pair of flights and ensured that the minima distance due to wake turbulence is fulfilled. The recommendations are runway 07L/25R and 06/24 operates as segregated parallel operation by installing ILS on runway 06/24, extending NP2 and NP3 taxiway for increasing the capacity and reducing the runway incident probability. The results from extending the taxiway are the operation of runway 06/24 will not disturb runway 07L/25R operation, the runway capacity will increase by 60%, and the utilization of third runway will increase by 55%.
Gunawan Rudi Cahyono, Pathur Razi Ansyah, Nuryasin Qadimil Awaly
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 13; doi:10.28989/angkasa.v13i1.947

Abstract:
Pada keadaan cerah Intensitas radiasi matahari di luar atmosfer bumi adalah 1360 W/m2, Setelah disaring oleh atmosfer, intensitas puncak radiasi menjadi sekitar 1000 W/m2. Berdasarkan letak geografis, Indonesia sangat berpotensi untuk menjadikan energi surya sebagai salah satu sumber energi masa depan, namun temperatur sel surya sangat berpengaruh terhadap performa panel surya dikarenakan komponen semikonduktor pada sel surya sangat sensitif terhadap perubahan temperatur. Penelitian ini dilakukan untuk mengetahui pengaruh pendinginan dengan menggunakan sirip pada panel surya untuk meningkatkan daya dari panel surya. Hasil yang didapatkan yaitu pendinginan dengan sirip dapat menurunkan temperatur sebesar 3,52% - 3,78%, namun penggunaan sirip pada pendinginan dengan konveksi paksa justru menurunkan efektivitas dari sirip dari 24,63% menjadi 16,63%. Dengan menambahkan sirip untuk pendinginan alami panel surya maka luas permukaan untuk perpindahan panas juga akan meningkat, sehingga mempercepat perpindahan panas dari panel ke udara, dengan begitu temperatur maksimal panel surya dapat menurun. Keywords Panel Surya, Perpindahan Panas, Sirip Pendingin References M. Arifin, D. O. Margareta, and O. F. Trimaryana, “Pengaruh Intensitas Cahaya terhadap Efisiensi Konversi Sel Surya Berbasis Dye-Sensitized Solar Cell (DSSC),” J. Integr., vol. 9, no. 1, p. 24, 2017, doi: 10.30871/ji.v9i1.246. S. Kalogirou, “The potential of solar industrial process heat applications,” Appl. Energy, vol. 76, no. 4, pp. 337–361, 2003, doi: 10.1016/S0306-2619(02)00176-9. S. Mahdy, M. Reza, and C. Ekaputri, “Mempengaruhi Kinerja Photovoltaic Jenis Polycristalline Berukuran 6Cm X 11Cm X 0 . 25Cm Analyze of Characteristic and External Factors Which Influencing of Polycristalline Photovoltaic Works With the Size 6Cm X 11Cm X 0 . 25Cm,” vol. 5, no. 3, pp. 3816–3822, 2018. T. A. Rizal, M. Amin, and P. H. Saputra, “Kaji Eksperimental Pendinginan Panel Surya Menggunakan Media Udara,” Jurutera, vol. 01, no. 01, pp. 027–030, 2014, [Online]. Available: http://jurnal.unsam.ac.id/index.php/jurutera/article/view/711/526. P. Handoko and Y. Fajariyanti, “Pengaruh Spektrum Cahaya Tampak Terhadap Laju Fotosintesis Tanaman Air Hydrilla Verticillata,” Semin. Nas. X Pendidik. Biol. FKIP UNS, pp. 1–9, 2010. I. Yusuf, “Implementasi Water Cooling System Untuk Menurunkan Temperature Losses Pada Panel Surya,” J. Tek. Elektro Univ. Tanjungpura, vol. 1, no. 2, pp. 3–5, 2017, [Online]. Available: http://jurnal.untan.ac.id/index.php/jteuntan/article/view/21994/17633. C. P. Kothandaraman, Fundamentals of Heat and Mass Transfer, Third. New Delhi: New Age International Publisher, 2006. Y. A. C. & Y. Cengel, Heat Transfer: A Practical Approach With EES CD. 2002. A. M. Dee, Pengaruh Koefisien Perpindahankalor Konveksi Dan Bahan Terhadap Laju Aliran Kalor, Efektivitas Dan Efisiensi Sirip Dua Dimensi Keadaan Tak Tunak. Yogyakarta: Universitas Sanata Dharma, 2016. S. Sudirman, “Kajian Intensitas Cahaya (Adin Sudirman),” Bul. Pengelolaan Reakt. Nukl., pp. 1–9, 2007. http://dx.doi.org/10.28989/angkasa.v13i1.947 Refbacks There are currently no refbacks.
Rony Arjuna, Joko Waluyo, Nur Aini Masruroh
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 13; doi:10.28989/angkasa.v13i1.954

Abstract:
Salah satu metode sand control yang umum digunakan oleh perusahaan oil dan gas untuk pekerjaan perawatan sumur adalah sand consolidation (SCON). Selama ini, proses pemilihan provider pelaksana pekerjaan dilakukan secara lelang. Kemudian pimpinan departemen dan engineer akan memutuskan providernya. Agar proses pemilihan lebih transparan, terukur dan bisa dipertanggung jawabkan, maka diperlukan suatu sistem pengambilan keputusan yang standar dan kompatibel. Penelitian ini bertujuan untuk mengetahui parameter apa yang menjadi dasar pertimbangan dan merancang sistem pengambilan keputusannya. Metode yang digunakan dalam penelitian ini adalah Analytical Hierarchy Process (AHP). Hasil dari penelitian ini menunjukkan kriteria yang dijadikan sebagai pertimbangan adalah compatibility (0,349), safety & environment (0,229), quality (0,219), cost (0,127), dan service (0,075). Alternatif ST-α2-HL dengan bobot 0,282 merupakan provider terpilih. AHP dapat diterapkan sebagai metode yang sangat baik dalam kasus penentuan best alternatif provider SCON. Perbandingan hasil antara decision maker dan metode AHP jika dilihat dari perspektif best alternatif saja mencapai 100%. Keywords Masalah kepasiran; Sand consolidation (SCON); Analytical Hierarchy Process References O. F. Maduabuchi, D. Appah, dan E. S. Okoro, “Relative Study of Internal Gravel Packing and Chemical Sand Consolidation: Sand Control Techniques of Niger Delta Wells,” Am. J. Eng. Res., vol. 6, no. 5, pp. 261–268, 2017. K. A. Zahroh, “Evaluasi Problem Kepasiran Pada Sumur – Sumur di Lapangan X,” Universitas Trisakti, 2016. O. Charles, U. Stephen, dan E. Onyekazi, “Comparative Study of The Sand Control Methods Used in the Oil Industry (Case Study of The Niger Delta),” Interational J. Sci. Eng. Res., vol. 7, no. 8, pp. 1497–1506, 2016. H. Taherdoost, “Decision Making Using the Analytic Hierarchy Process (AHP); A Step by Step Approach,” Int. J. Econ. Manag. Syst., vol. 2, pp. 244–246, 2017. A. Supriadi, A., dan Rustandi, Analytical Hierarchy Process (AHP) Teknik Penentuan Strategi Daya Saing Kerajinan Bordir. Tasikmalaya: Deepublish, 2016. B. Luzon, dan S. El Sayegh, “Evaluating supplier selection criteria for oil and gas projects in the UAE using AHP and Delphi, ” International Journal of Construction Management, vol. 16, pp. 175 - 183, 2016. C.N Wang, H.T Tsai, T.P. Ho, V.T. Nguyen, dan Y.F. Huang, "Multi-Criteria Decision Making (MCDM) Model for Supplier Evaluation and Selection for Oil Production Projects in Vietnam" Processes, vol. 8, no. 134, pp.1-13, 2020. C. Jack Kie, A. Khalif Hassan, N. Mohd Aripin, and R. Mohd Yunus, “An Analytic Hierarchy Process Approach in Decision-Making for Material Selection in an Automotive Company: A Case Study,” KnE Soc. Sci., vol. 2019, pp. 472–484, 2019. P. Z. Razi, N. I. Ramli, M. I. Ali, dan P. J. Ramadhansyah, “Selection of Contractor by Using Analytical Hierarchy Process (AHP),” IOP Conf. Ser. Mater. Sci. Eng., vol. 712, no. 1, 2020. R. S. Ilhami and D. Rimantho, “Penilaian Kinerja Karyawan dengan Metode AHP dan Rating Scale,” J. Optimasi Sist. Ind., vol. 16, no. 2, pp. 150-157, 2017. A. Siekelova, I. Podhorska, dan J.J. Imppola, “Analytic Hierarchy Process in Multiple Criteria Decision Making: A Model Example,” SHS Web of Conf., vol. 90, no. 01019, pp. 1-10, 2021. http://dx.doi.org/10.28989/angkasa.v13i1.954 Refbacks There are currently no refbacks.
Michael Hius Sentoso, Neno Ruseno
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 13; doi:10.28989/angkasa.v13i1.941

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Flight planning is one of the essential factors of the airline operation. The selection of routes will determine the economic value of the flight. However, some conditions may prevent the flight to use the most optimum route due to airspace restriction or weather condition. The research aims to develop a search engine program that uses dynamic flight parameters that considers fusion of System Wide Information Management (SWIM) data including weather data and NOTAM to produce the most optimum route in 2D flight planning. The Dijkstra’s pathfinding is implemented in Python programming language to produce the flight plan. The navigation data used is enroute airway in Indonesian FIR regions. The scenario used is a flight from Jakarta to Makassar with duration of 2 hours flight with considering the effect of restricted airspace and weather blockage during in-flight. The study also uses the optimum route produced by the algorithm to be compared with the possible alternate routes to define how optimum the route is. Adding a restricted airspace parameter will result in a new optimum flight plan that able avoids the airspace and the most minimum distance. The effect of external wind parameter could influence the optimum route which may vary depends on the speed of the wind.
Ryan Anugrah Putra
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 12, pp 19-28; doi:10.28989/angkasa.v12i2.654

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Mixing characteristics of gas-liquid co-current upward flow inside a vertical pipe equipped with a helical static mixer element were numerically investigated. The results from computational fluid dynamics (CFD) simulations with Euler-Euler model of three different length to diameter ratio (L/D) of the static mixer elements were compared. All simulated static mixers provide a better mixing condition in the comparison with the one without a static element. The sudden increase of rotational strength indicated by the liquid velocity curl was observed once the gas-liquid flows enter the static-mixer element zone. The smallest L/D static mixer provides the highest liquid velocity curl in the smallest axial distance providing the most effective mixing process among the tested elements. The best mixing characteristics shown by radial gas distribution was achieved with the static mixer with a smallest L/D.
Rama Sahtyawan, Andika Bayu Saputra, Syaeful Arief
Angkasa: Jurnal Ilmiah Bidang Teknologi, Volume 12, pp 43-52; doi:10.28989/angkasa.v12i2.770

Abstract:
The spread of the coronavirus (Covid-19) in Indonesia is increasing. Many innovations have begun to emerge between the use of chambers that are placed on the streets is rampant, the village gate is still manually with an officer pressing the switch for incoming guests, and there is also spraying that is done automatically, reads guests who come, automatically, the obstacles encountered are sometimes run out of disinfectant fluid, demanding officers must regularly check so as not to run out. This research will develop an IoT-based disinfecting booth in addition to spraying disinfecting liquid automatically. It can also fill disinfecting liquid automatically and can be monitored via a Smartphone. System and tool requirements consist of NodeMcu Esp 8266, flow water sensor, ultrasonic sensor, Relay, Solenoid Valve, Arduino IDE, Blynk Apps, ThingSpeak The process of detecting disinfectant fluid level is divided into 2, safe level with water level between 11-50 cm, The danger level with the water level between 0-10 cm. Then the node sends an output signal to the relay. The relay continues that signal, which functions as a switch to open the solenoid, water will flow through the pipe when the solenoid valve is opened so that the water tap is open to fill the derijen. The Thingspeak IoT platform is used to display disinfectant liquid level graphs. Sensor output data will be reported in real-time to the admin via the application of the Blynk app. With the development of this device, it is expected to reduce the spread of the COVID-19 virus. Keywords NodeMcu, Water Level Control, Ultrasonic Sensor. Full Text: PDF (Bahasa Indonesia) References C. C. Lai, T. P. Shih, W. C. Ko, H. J. Tang, dan P. R. Hsueh, “Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and coronavirus disease-2019 (COVID-19): The epidemic and the challenges,” International Journal of Antimicrobial Agents, vol. 55, no. 3. Elsevier B.V., hal. 105924, 01-Mar-2020, doi: 10.1016/j.ijantimicag.2020.105924. H. T. Le et al., “The first infant case of COVID-19 acquired from a secondary transmission in Vietnam,” Lancet Child Adolesc. Heal., 2020, doi: 10.1016/s2352-4642(20)30091-2. H. M. Kim, I. S. Shim, Y. W. Baek, H. J. Han, P. J. Kim, dan K. Choi, “Investigation of disinfectants for foot-and-mouth disease in the Republic of Korea,” Journal of Infection and Public Health. 2013, doi: 10.1016/j.jiph.2013.04.002. M. Suresh, U. Muthukumar, dan J. Chandapillai, “A novel smart water-meter based on IoT for city distribution management,” in TENSYMP 2017 - IEEE International Symposium on T. for SmartCities,2017,doi:10.1109/TENCONSpring.2017.8070088. R. Sahtyawan dan Sudarmana landung, “Rancang Bangun Pemantau Daerah Endemik Malaria Berbasis IoT Menggunakan Metode Profile Matching,” Piltek vol. 5, no. 1, Maret 2020,doi: 10.33319/piltek.2020.v5i1.51. S. Thakare dan P. H. Bhagat, “Arduino-Based Smart Irrigation Using Sensors and ESP8266 WiFi Module,” in Proceedings of the 2nd International Conference on Intelligent Computing and Control Systems, ICICCS 2018, 2019, doi: 10.1109/ICCONS.2018.8663041. A. A. M. Eltaieb dan Z. J. Min, “Automatic Water Level Control System,” Int. J. Sci. Res., 2015. doi: 10.1016/ijss.20151505-1509. R. Sahtyawan dan A. I. Wicaksono, “Application for Control of Distance Lights Using Microcontroller Nodemcu Esp 8266 Based on Internet of Things (IoT),” Compiler, vol. 9, no. 1, Mei 2020, doi: 10.28989/compiler.v9i1.627. R. Sahtyawan, “PENERAPAN ZERO ENTRY HACKING DIDALAM SECURITY MISCONFIGURATION PADA VAPT (VULNERABILITY ASSESSMENT AND PENETRATION TESTING),” J. Inf. Syst. Manag., vol. 1, no. 1, hal. 18–22, Jul 2019. doi:10.14720/jism.2019.18-22. S. A. Z. Murad, A. Harun, S. N. Mohyar, R. Sapawi, dan S. Y. Ten, “Design of aquaponics water monitoring system using Arduino microcontroller,” in AIP Conference Proceedings, 2017, doi: 10.1063/1.5002442. V. Petrov et al., “Vehicle-Based Relay Assistance for Opportunistic Crowdsensing over Narrowband IoT (NB-IoT),” IEEE Internet ThingsJ,2018,doi:10.1109/JIOT.2017.2670363. Helmi g, Y. Somantri, Erik H“ Rancang Bangun Magnetic Door Lock Menggunakan Keypad dan Solenoid Berbasis Mikrokontroler Arduino Uno,” ELECTRANS, 2013. M. A. Gómez Maureira, D. Oldenhof, dan L. Teernstra, “ThingSpeak – an API and Web Service for the Internet of Things,” World Wide Web, 2014. M. N. Al Hasan, C. I. Partha, dan Y. Divayana, “rancang bangun pemandu tuna netra menggunakan sensor ultrasonik berbasis mikrokontroler,” Maj. Ilm. Teknol. Elektro, 2017, doi: 10.24843/mite.2017.v16i03p05. http://dx.doi.org/10.28989/angkasa.v12i2.770 Refbacks There are currently no refbacks.
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