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All Journal Jurnal Teknik Industri SPEKTRUM INDUSTRI Heuristic SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Patria : Jurnal Pengabdian Kepada Masyarakat
David Andrian
Universitas Katolik Darma Cendika
Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Other

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DAMPAK PROSES PENGOLAHAN AIR BERSIH TERHADAP LINGKUNGAN Andrian, David; Irawati, Desrina Yusi
Heuristic Vol 16, No 1 (2019)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v16i1.2475

Abstract

Penggunaan  polimer, koagulan, alum, dan gas klorin pada proses penjernihan air akan mengakibatkan dampak lingkungan. Pendekatan yang dapat digunakan untuk mengidentifikasi dan menganalisa dampak lingkungan adalah dengan metode Life Cycle Assessment (LCA). LCA  terdiri dari empat tahapan utama, yaitu goal and scope, Life Cycle Inventory (LCI), Life Cycle Impact Assessment (LCIA), dan Interpretation. Berdasarkan proses software SimaPro 7 metode Impact 2002+, bagian dalam proses pengolahan air yang menimbulkan dampak lingkungan paling besar adalah penggunaan natural gas. Penggunaan natural gas atau listrik per 1 kg air menyebabkan dampak lingkungan non-renewable energy sebesar 5,55E-9 Pt dan pemanasan global sebesar 4,66E-9 Pt. Penggunaan natural gas yang menyebabkan dampak non-renewable energy adalah ketersediaan gas (6E-9 Pt), minyak (7,66E-10 Pt), dan uranium (3,52E-10 Pt) pada tanah semakin berkurang. Penggunaan natural gas yang menyebabkan dampak pemanasan global adalah carbon dioxide hasil pembakaran bahan bakar fosil (5,46E-9 Pt). Besarnya penggunaan listrik pada proses pengolahan air bersih di IPAM disebabkan jarak pengambilan air cukup jauh dan peralatan yang sudah tua.Kata kunci: air, Instalasi Pengolahan Air Minum, Life Cycle Assessment
Analisa Dampak Lingkungan Pada Instalasi Pengolahan Air Minum (IPAM) Dengan Metode Life Cycle Assessment (LCA) Irawati, Desrina Yusi; Andrian, David
Jurnal Teknik Industri Vol 19, No 2 (2018): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (698.523 KB) | DOI: 10.22219/JTIUMM.Vol19.No2.166-177

Abstract

Babat Drinking Water Treatment Plant (IPAM Babat) is one of the clean water facilities for Lamongan community. The process of clean water requires an appropriate processing. This process requires chemicals and energy that it will adverse effects to the environment. Life Cycle Assessment (LCA) is one of the environmental effects analyze methods for clean water process. The four phases of LCA are Goal And Scope Definition, Life Cycle Inventory, Life Cycle Impact Assessment, and Interpretation. The environmental impacts of the LCA method of processing are divided into three broad categories of impacts, namely the categories of human health, ecosystem quality, and resources. The result of LCA analyzed shows that electrical energy utilization product an environment impact significantly. This impact has consequences on the resource category (fossil fuels) and human health (climate change) due to CO2 combustion. The largest electric consumption is used for tools of pumping water due to the distant length intake and IPAM. The solution for reduced the electric consumption is using the equipment efficiency and water flow system by the power of gravity.
ANALISIS TECHNOLOGY ACCEPTANCE MODEL (TAM) PADA INTENTION TO TRANSACT ONLINE (STUDI KASUS: E-WALLET OVO DI KOTA SURABAYA) Nainggolan, Blandina Angelina; Andrian, David
Heuristic Vol 18, No 2 (2021)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/heuristic.v18i2.6159

Abstract

Digital payment mengalami pertumbuhan yang sangat pesat sejak awal kehadirannya di Indonesia. Digital payment merupakan inovasi dalam industri jasa finansial yang memanfaatkan teknologi sehingga memungkinkan penggunanya melakukan berbagai transaksi keuangan secara digital. Salah satu digital payment yaitu e-wallet OVO yang dikelola oleh PT. Visioner Internasional yang memberikan kemudahan dalam bertransaksi (OVO Cash) dan memberi kesempatan lebih besar dalam mengumpulkan poin (OVO Points). Saat ini aplikasi OVO dapat diakses melalui smartphone baik pengguna android maupun iOS. Tujuan dari penelitian ini adalah mengetahui pengaruh variabel perceived case to use, perceived usefulness, act to use, perceived trust, perceived risk terhadap intention to transact online pada penggunaan e-wallet OVO. Analisis yang digunakan untuk penelitian ini adalah analisis deskriptif dan analisis Partial Least Square (PLS). Pengumpulan data dilakukan dengan menyebarkan kuesioner kepada minimum 385 responden pengguna e-wallet OVO di Surabaya. Untuk memudahkan penulis, hasil penelitian diolah dengan software SmartPLS 3.0. Berdasarkan hasil analisis, variabel perceived usefulness dan act to use berpengaruh positif signifikan, sedangkan variabel perceived ease of use, perceived trust, dan perceived risk berpengaruh positif namun tidak signifikan terhadap intention to transact online. Dan dalam penelitian ini menjelaskan 54% dari intention to transact online pada pengguna e-wallet di Kota Surabaya.
Analisa Dampak Lingkungan Pada Instalasi Pengolahan Air Minum (IPAM) Dengan Metode Life Cycle Assessment (LCA) Desrina Yusi Irawati; David Andrian
Jurnal Teknik Industri Vol. 19 No. 2 (2018): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/JTIUMM.Vol19.No2.166-177

Abstract

Babat Drinking Water Treatment Plant (IPAM Babat) is one of the clean water facilities for Lamongan community. The process of clean water requires an appropriate processing. This process requires chemicals and energy that it will adverse effects to the environment. Life Cycle Assessment (LCA) is one of the environmental effects analyze methods for clean water process. The four phases of LCA are Goal And Scope Definition, Life Cycle Inventory, Life Cycle Impact Assessment, and Interpretation. The environmental impacts of the LCA method of processing are divided into three broad categories of impacts, namely the categories of human health, ecosystem quality, and resources. The result of LCA analyzed shows that electrical energy utilization product an environment impact significantly. This impact has consequences on the resource category (fossil fuels) and human health (climate change) due to CO2 combustion. The largest electric consumption is used for tools of pumping water due to the distant length intake and IPAM. The solution for reduced the electric consumption is using the equipment efficiency and water flow system by the power of gravity.
Pendampingan dan Peningkatan Sarana Promosi di Food Court Graha Masyithoh, Menur Pumpungan, Surabaya David Andrian; Leonardo Agustinus
Patria : Jurnal Pengabdian Kepada Masyarakat Vol 1, No 2: September 2019
Publisher : Universitas Katolik Soegijapranata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/patria.v1i2.2088

Abstract

Abstrak : Di kota besar seperti Surabaya, banyak sekali dijumpai food court di berbagai sudut kota, dengan ciri, kelompok, dan pasarnya masing-masing, mulai dari yang mewah di dalam plaza / mall hingga yang lebih sederhana, yang pada tahun-tahun belakangan merupakan lokasi tertentu sebagai wadah berdagang para pedagang kaki lima (PKL) yang disediakan oleh Pemkot Surabaya. Salah satu food court di daerah Surabaya Timur adalah food court Graha Masyithoh di jalan Menur Pumpungan No.34, Surabaya, yang merupakan bagian dari klinik Graha Masyithoh. Selama ini, para pedagang di food court ini mengeluhkan sepinya pengunjung karena berbagai hal seperti ketergantungan dengan jam operasional klinik, letak kurang strategis karena tertutup tingginya gedung apartemen di sebelahnya, hingga problem fasilitas di dalamnya. Melalui kegiatan pengabdian masyarakat, mahasiswa Universitas Katolik Darma Cendika berinisiatif untuk melakukan pendampingan pada para pedagang dan promosi dalam membantu food court ini untuk lebih dikenal masyarakat sekitar.Kata kunci : Food court, promosi Abstract:  In a big city like Surabaya, we can find a lot of food courts everywhere with their own characteristics, starting from the luxury and glamorous one in various malls to the more conservative one with cheaper price. One of the latter is food court Graha Masyithoh in Jln. Menur Pumpungan No. 34 Surabaya, which is part of a medical center with the same name. All this time, the merchants in this food court always struggle with less and less consumer every day. The reasons are its dependency from patients of the medical center only, high building of apartment next to the food court which make it cannot be seen clearly, and lack of facilities inside the food court. Through this community service activities, the team from Universitas Katolik Darma Cendika plan to give some promotion means to this food court in order to help them to be more known by people around them.
PEMANFAATAN LAHAN NON PRODUKTIF MENJADI LAHAN BERNILAI EKONOMIS DENGAN BUDIDAYA IKAN LELE DI PERUM SURYA INTI PERMATA JUANDA SIDOARJO David Andrian; Lilis Nurhayati; Maria Oktaviani Jehanus; Fransiska Amelia Imu
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 2 (2023): June
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i2.15291

Abstract

ABSTRAKIkan lele dikenal memiliki rasa yang sangat gurih dan renyah jika digoreng kering. Kandungan gizinya juga cukupu tinggi, seperti diantaranya adalah kandungan energi, protein, lemak, kalsium, fosfor zat besi dan tiamin, tidak heran jika lele ini juga direkomendasikan sebagai protein yang baik bagi anak-anak. Cara perawatan ikan lele pun terbilang cukup mudah dan membutuhkan biaya yang terjangkau, tidak hanya itu banyak peternak lele juga yang menyatakan bahwa budidaya lele cenderung cepat, karena ikan ikan ini hanya membutuhkan sekitar kurang lebih 3 bulan saja dari bibit hingga siap panen. Budidaya ikan lele juga tidak memerlukan lokasi yang sulit. Tim pengabdian akan memanfaatkan lahan non produktif yang ada disekitar rumah warga. Nantinya tim pengabdian akan melakukan sosialisasi kepada warga tentang bagaimana pentingnya memulai usaha dari lingkungan sekitar, salah satunya adalah dengan memanfaatkan lahan non produktif menjadi lahan produktif budidaya lele. Tidak hanya itu tim pengabdian juga akan memberikan pelatihan secara langsung tentang bagaimana melakukan budidaya lele, mulai dari persiapan area/ lahan budidaya, kemudian persiapan bibit lele, sistem pakanan ikan lele, hingga perawatan lele hingga lele siap dipanen. Warga Perum Surya Inti Permata Juanda merasa sangat antusias karena telah memperoleh edukasi untuk memanfaatkan lahan non produkti menjadi lahan yang memiliki nilai ekonomis.                                                                                                          Kata kunci: budidaya; lele; lahan non produktif ABSTRACTCatfish   is known to have a very savory and crunchy taste when fried dry. Its nutritional content is also quite high, such as the content of energy, protein, fat, calcium, phosphorus, iron and thiamine. It is not surprising that this catfish is also recommended as a good protein for children. How to care for catfish is quite easy and requires an affordable cost, not only that, many catfish breeders also state that catfish cultivation tends to be fast, because these fish only need about 3 months from seed to ready for harvest. Cultivating catfish also does not require difficult locations. The service team will utilize non-productive land around residents' homes. Later the service team will conduct outreach to residents about the importance of starting a business from the surrounding environment, one of which is by utilizing non-productive land to become productive land for catfish cultivation. Not only that, the service team will also provide direct training on how to carry out catfish farming, starting from preparing the cultivation area/land, then preparing catfish seeds, catfish feeding systems, to catfish care until the catfish are ready to be harvested. Residents of Perum Surya Inti Permata Juanda are very enthusiastic because they have received education to utilize non-productive land into land that has economic value. Keywords: cultivation; catfish; non-productive land
SPREADSHEET BASED BUSINESS DECISION MAKING SYSTEM (CASE STUDY IN BONOROWO LAND, LAREN, LAMONGAN) Desrina Yusi Irawati; David Andrian; Albertus Daru Dewantoro
Spektrum Industri Vol. 18 No. 2: October 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i2.16967

Abstract

Bonorowo land in Laren Subdistricts, Lamongan Districts, is one of the areas that uses its land for rice, corn and kenaf cultivation. The agricultural sector in Laren does not yet have a detailed economic analysis. Farmers ignore the importance of considering initial capital and some “small” costs in this activities. Therefore, in this study, the calculation of business feasibility was carried out on rice, kenaf, and corn farmer groups in Bonorowo land, West Laren. Business feasibility analysis is conducted through calculation of the value of NPV, IRR, and IP. The calculation system uses a Microsoft Excel spreadsheet formula. The NPV, IRR, and PI values of corn cultivation are Rp. 524,182.40; 144.43%; and 2,9. The NPV, IRR, and PI values for kenaf cultivation are Rp. 1,145,532.39; 266.43%; and 5.15. The NPV, IRR, and PI values for rice cultivation are Rp. -495,085.78; -25.18%; and -0.79. The results of the economic analysis of the cultivation of rice, corn, and kenaf in Bonorowo land, Laren Subdistrict, show that rice cultivation has caused losses and is not feasible to continue.
Analisis Proses Perawatan Preventif Beberapa Komponen dalam Sebuah Mesin dan Pengaruhnya terhadap Kapasitas Produksi (Studi Kasus: Mesin Kiln Putar di Industri Ubin Keramik) David Andrian
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 12 No 2 (2026): August
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol12.no2.a21952

Abstract

Effective preventive maintenance is essential for maintaining machine availability and improving productivity in manufacturing industries. This study aims to analyze preventive maintenance scheduling strategies for multiple components within a single machine and evaluate their impact on downtime and production capacity in rotary kiln machines used in the ceramic tile industry. A quantitative approach was employed using four rotary kiln machines in a ceramic tile manufacturing company located in Gresik, East Java, Indonesia. The analysis was conducted by developing a cost-based model that compares separate and grouped maintenance schedules based on optimal maintenance intervals, opportunity costs, schedule shifting costs, and component failure risks. The results indicate that the optimal maintenance strategy varies among machines. For Kiln IA, Kiln IB, and Kiln IIB, separate maintenance scheduling for each component resulted in lower total maintenance costs, whereas for Kiln IIA, grouping the maintenance schedules of the roll, bearing, and burner produced the minimum total cost of IDR 18,640,607. These findings suggest that grouped maintenance is feasible when the optimal maintenance intervals of different components are relatively close, thereby reducing the frequency of machine downtime. The proposed preventive maintenance schedules also reduced annual downtime by 28.62–77.02%, with the highest efficiency achieved by Kiln IIA at 77.02%. The study demonstrates that the effectiveness of grouped maintenance scheduling is strongly influenced by the proximity of optimal maintenance intervals and the balance between opportunity costs and schedule shifting costs. Therefore, an integrated cost-based preventive maintenance scheduling approach can serve as a decision-making tool for improving machine availability and production capacity.
Pengendalian Kualitas Palet Kabel Kayu Berbahan Limbah Sisa Log dengan Integrasi Seven Tools dan QFD Lilis Nurhayati; David Andrian
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 12 No 2 (2026): August
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol12.no2.a22101

Abstract

The utilization of log residue waste as an alternative raw material in the wood processing industry has the potential to improve resource efficiency; however, material heterogeneity often leads to product quality issues. This study aims to identify the dominant types of defects and their contributing factors in wooden cable pallets made from log residue waste, as well as to determine quality improvement priorities through the integration of Seven Tools of Quality and Quality Function Deployment (QFD). The study was conducted at UD Nurari Perdana Kabelindo, Sidoarjo, using production and defect data collected during September 2025 through observations, interviews, documentation, and questionnaires. The Seven Tools analysis employed check sheets, Pareto charts, and cause-and-effect diagrams to identify dominant defects and their root causes. The results were subsequently integrated into QFD through the development of a House of Quality to translate customer needs into priority technical characteristics. Customer requirements were determined based on product quality attributes obtained from 30 customer respondents using a census method. The results showed a defect rate of 11.51% of total production, with the dominant defects consisting of thickness deviation, wavy surfaces, knot defects, and asymmetrical circular shapes. The QFD analysis revealed that operator precision and raw material selection were the top priorities for quality improvement. These findings demonstrate that the integration of Seven Tools and QFD is effective in linking process defect analysis with customer needs to support sustainable product quality control.
Co-Authors Albertus Daru Dewantoro Desrina Yusi Irawati Fransiska Amelia Imu Leonardo Agustinus Lilis Nurhayati Maria Oktaviani Jehanus Nainggolan, Blandina Angelina