Garuda - Garba Rujukan Digital

Pelatihan Pengemasan, Pelabelan dan Digital Marketing Produk Black Garlic di Kota Payakumbuh Sumatera Barat Lisa Nesti; Meilizar Meilizar; Firdaus Jamsan; Musdirwan Musdirwan; Rahmi Elviana; Reni Sutri
Journal of Industrial Community Empowerment Vol 2, No 2 (2023): Published in October 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/jice.v2i2.222

Payakumbuh City, is one of the centres of garlic production in West Sumatra. In the city, an industry has been established for the manufacture and marketing of health products, one of them is fermented garlic (black garlic). The lack of knowledge, technology, attention from the government and related parties is an obstacle for the community to develop this business. After this community service activity, it is hoped that they can improve and develop their black garlic product through packaging, labelling and digital marketing. The method of implementing this activity is done by providing material and demonstration of packaging, labelling and digital marketing of black garlic products. This activity was accompanied by instructors (lecturers) and continued with practice by participants. The output that has been achieved is that the community understands the technology of packaging and labelling of black garlic products which have added value in order to compete widely.

ANALISIS SUPPLY CHAIN IKAN TANGKAP DI PELABUHAN PERIKANAN BUNGUS Viarani, Suci Oktri; Nesti, Lisa; Mufti, Wahyu Fitrianda
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 21, No 1 (2024): VOL 21 NO 1 JUNI 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v21i1.252

Padang City is one of the areas with the largest production of caught fish in West Sumatra, reaching 20,191.56 tons or worth IDR 479,442,842,000 in 2021. Fishermen's fish production is influenced by season and weather; if the weather is bad, the number of catches decreases, while during the harvest season, there is an oversupply which causes a lot of fish to be stored in cold storage. Apart from that, the flow of fish caught is not yet clear, causing the use of cold storage to be not optimal. This research aims to ensure that fish catches can be distributed optimally to final consumers, optimize the use of cold storage, and stabilize fish prices on the market to improve the fishermen's economy. The research method used is descriptive and qualitative methods with data collection techniques through field observations and interviews. The research results show that the supply chain for caught fish at the Bungus Fishery Port consists of a supply chain network for large and small catches. This network has three supply chain flows: the flow of goods, information, and money.

EVALUASI KINERJA SISTEM PENDINGIN KOMPRESI UAP VRF DENGAN SIKLUS INJEKSI Rachman, Arfidian; Yuana Dewi, Arfita; Effendi, Asnal; Nesti, Lisa
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.86-92

As a result of a decrease in the mass flow rate at the inlet section of a variable refrigerant flow (VRF) cooling system, the refrigerant flow system performs poorly. To increase efficiency the steam injection cycle method is used. The effects of steam injection are theoretically explored in this study over a wide range of medium pressures and ambient temperatures, and the findings are supported by experimental data. Compressor heating capacity, input power, coefficient of performance (COP), and isentropic efficiency are all affected by pressure. At low ambient temperatures, the increase in COP by steam injection is remarkable. In this study, the performance of the cooling system with the injection cycle was evaluated, the system with this injection cycle resulted in an increase in cooling capacity of 3.26% and an energy efficiency ratio (EER) of 2.32%.

TINJAUAN VARIABEL REFRIGERANT VOLUME Rachman, Arfidian; Yuana Dewi, Arfita; Effendi, Asnal; Nesti, Lisa
Jurnal Teknologi dan Vokasi Vol 1 No 2 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.2.111-120

VRV systems are multi-split HVAC systems that maintain different portions by varying refrigerant volume. These systems control refrigerant volume for efficiency and dependability. This review aims to identify VRV system elements affecting operational and performance factors. Previous studies are crucial for future large-scale VRV development.

EXPERIMENTAL ANALYSIS OF HEAT RECOVERY WHEEL FOR TROPICAL CLIMATE Rachman, Arfidian; Yuana Dewi Rachman, Arfita; Effendi, Asnal; Nesti, Lisa
Jurnal Teknologi dan Vokasi Vol 2 No 1 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.1.92-96

This paper presented and used experimental analysis to examine design that integrates an active heat recovery wheel mechanism into a windcatcher. A rotational thermal heat recovery is incorporated into the windcatcher channel of the proposed system. An experiment was conducted to examine how the heat recovery mechanism affected the windcatcher performance, demonstrating the system ability to provide the necessary fresh air rates. A test room model, measuring 4x4x3 meters and depicting a small classroom, was integrated with the windcatcher model. Ventilation rates managed to supply sufficient ventilation even with the rotational heat recovery wheel blocked. This active recovery has the potential to lessen the demand on space heating systems in addition to providing enough ventilation. The heat in the exhaust airstreams was caught and transferred to the incoming airstream, boosting the temperature between 7-9oC depending on the indoor/outdoor conditions. This indicates that there is a great deal of room for further development of the idea, allowing for larger-scale testing and investigation of the system's heat transfer characteristics.

Strategi Pengembangan Kawasan Minapolitan di Sumatera Barat Menggunakan Analytical Hierarchy Process Viarani, Suci Oktri; Nesti, Lisa; Mufti, Wahyu Fitrianda
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol 5, No 2: December 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v5i2.196

West Sumatra Province has been designated by the Minister of Maritime Affairs and Fisheries as a Minapolitan area with seven regions in West Sumatra. Since the establishment of West Sumatra as a Minapolitan area, there has been no research examining the evaluation of suitability between planning and implementation of the Minapolitan fishing area development program in West Sumatra. The aim of this research is to determine a strategy for developing the Minapolitan area in West Sumatra which can improve the welfare of fishermen in the area. The data collection technique in this research is the primary data collection method in the form of field observations, interviews, FGDs and filling out questionnaires by respondents selected based on their knowledge of the Minapolitan area development program, such as representatives of the DKP, Port Service, business actors, and fishermen figures. The method used to determine strategic priorities for developing the Minapolitan area is using the Analytical Hierarchy Process approach. Based on the AHP calculation, the CR value <= 0.1 shows that respondents are consistent in making assessments and the resulting solutions are optimal. Likewise, for the CR value in the calculation for the assessment of each indicator, the CR value obtained is 0.0263 for the assessment of the supporting facility factor indicator, 0.0231 for the assessment of the supporting infrastructure factor indicator and 0.0061 for the assessment of the regional program factor indicator.The strategy obtained for developing the Minapolitan area is seen from the priority value between the highest factors, namely the supporting facilities and supporting infrastructure factors. The priority indicators that need to be immediately improved are the indicators for the availability of fishing ports, followed by the availability of fishing gear and the availability of clean water networks, the results obtained from the priority order of all the indicators assessed.

Peramalan Permintaan Minyak Goreng untuk Perencanaan Kebutuhan Crude Palm Oil di PT. PQS Nesti, Lisa; Elviana, Rahmi; Azhara, Meysha
Industrika : Jurnal Ilmiah Teknik Industri Vol. 8 No. 4 (2024): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v8i4.1616

PQS is a company engaged in the processing of Crude Palm Oil (CPO). The production system employed is make-to-stock, with production planning based on estimates and without the implementation of any specific method for production forecasting. Consequently, this has led to unmet consumer demand, with consumers having to wait until the cooking oil is available and distributed (out of stock). The objective of this research is to forecast the demand for cooking oil to plan for CPO needs and to determine the forecasted results for five periods, spanning from August to December 2023. The methods employed include Single Moving Average and Single Exponential Smoothing, validated by the POM-QM application. Based on the calculation results using the Single Moving Average method, an MAPE (Mean Absolute Percentage Error) of 13.12% was obtained, while the Single Exponential Smoothing method resulted in an MAPE of 14.44%. The chosen method for obtaining the most accurate forecasting method for cooking oil demand for CPO needs is the Single Moving Average method, as it has a smaller error rate. Keywords: Forecasting, Single Moving Average, Single Exponential Smoothing

EXPERIMENTAL ANALYSIS OF HEAT RECOVERY WHEEL FOR TROPICAL CLIMATE Rachman, Arfidian; Yuana Dewi Rachman, Arfita; Effendi, Asnal; Nesti, Lisa
Jurnal Teknologi dan Vokasi Vol 2 No 1 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.1.92-96

This paper presented and used experimental analysis to examine design that integrates an active heat recovery wheel mechanism into a windcatcher. A rotational thermal heat recovery is incorporated into the windcatcher channel of the proposed system. An experiment was conducted to examine how the heat recovery mechanism affected the windcatcher performance, demonstrating the system ability to provide the necessary fresh air rates. A test room model, measuring 4x4x3 meters and depicting a small classroom, was integrated with the windcatcher model. Ventilation rates managed to supply sufficient ventilation even with the rotational heat recovery wheel blocked. This active recovery has the potential to lessen the demand on space heating systems in addition to providing enough ventilation. The heat in the exhaust airstreams was caught and transferred to the incoming airstream, boosting the temperature between 7-9oC depending on the indoor/outdoor conditions. This indicates that there is a great deal of room for further development of the idea, allowing for larger-scale testing and investigation of the system's heat transfer characteristics.

EVALUASI KINERJA SISTEM PENDINGIN KOMPRESI UAP VRF DENGAN SIKLUS INJEKSI Rachman, Arfidian; Yuana Dewi, Arfita; Effendi, Asnal; Nesti, Lisa
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.86-92

As a result of a decrease in the mass flow rate at the inlet section of a variable refrigerant flow (VRF) cooling system, the refrigerant flow system performs poorly. To increase efficiency the steam injection cycle method is used. The effects of steam injection are theoretically explored in this study over a wide range of medium pressures and ambient temperatures, and the findings are supported by experimental data. Compressor heating capacity, input power, coefficient of performance (COP), and isentropic efficiency are all affected by pressure. At low ambient temperatures, the increase in COP by steam injection is remarkable. In this study, the performance of the cooling system with the injection cycle was evaluated, the system with this injection cycle resulted in an increase in cooling capacity of 3.26% and an energy efficiency ratio (EER) of 2.32%.

STATUS KETERSEDIAAN SARANA DAN PRASARANA KAWASAN PERIKANAN TANGKAP DI SUMATERA BARAT: STATUS KETERSEDIAAN SARANA DAN PRASARANA KAWASAN PERIKANAN TANGKAP DI SUMATERA BARAT Mufti, Wahyu Fitrianda; Nesti, Lisa; Viarani, Suci Oktri
Jurnal Teknologi Perikanan dan Kelautan Vol 16 No 1 (2025): FEBRUARI 2025
Publisher : Fakultas Perikanan dan Ilmu Kelautan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.16.92-99

Potensi besar sumberdaya ikan di Samudera Hindia akan dapat dimanfaatkan masyarakat Sumatera Barat secara optimum jika tersedia infrastuktur perikanan yang memadai. Pembangunan infrastruktur perikanan ini sebaiknya sinergi dengan output dan outcome dari program pengembangan kawasan pesisir Sumatera Barat sebelumnya. Salah satu langkah awal untuk membuat sinergi ini adalah melakukan penelitian yang bertujuan menganalisis kondisi perikanan tangkap yang akan dikembangkan dan kondisi infrastruktur yang tersedia di kawasan pesisir tersebut, yaitu sarana dan prasarana perikanan serta program pengembangan kawasan perikanan tangkap. Penelitian ini menggunakan data dan informasi yang diperoleh dari observasi lapangan, wawancara, focus group discussion (FGD), pengisian kuesioner, dan data sekunder yang bersumber dari instansi pemerintahan. Kesiapan kawasan dinilai dari indeks ketersedian infrastuktur relatif terhadap kebutuhan infrastruktur untuk sasaran yang direncanakan. Analisis menyimpulkan bahwa ketersediaan sarana dan prasarana perikanan memiliki status tercapai kategori sedang, masing-masing 63% dan 72%. Di antara beberapa jenis fasilitas yang masih harus dilengkapi adalah penyediaan air bersih dan pengadaan pabrik es untuk menjaga kualitas ikan.

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