Jurnal Teknologika

Analisis Kinerja Mesin Chiller AKL5500AV Pada PT. XXX

2023-12-05T09:34:59+00:00

The industrial world is increasingly advanced, especially in the field of air conditioning technology, this is influenced by the development of information systems that are very fast and dynamic. Industries compete to use technology to make their operations more efficient. The cooling machine has made a lot of progress. Currently, various refrigeration machines are not only used to cool rooms and vehicles, but refrigeration machines are also needed to cool the products produced. One of the advances in cooling machine technology is the AKL5500AV chiller machine. This machine is used to cool PBL plastic products produced. The temperature generated by this cooling machine is unstable, so it affects the production results at PT. XXX. This test is carried out by analyzing temperature indicators and wind pressure indicators at different hours and different temperature conditions. To get maximum results, testing is carried out on the chiller machine. The purpose of this test is to see the performance of the chiller and find out the COP value of the chiller. The test results show that the Coefficient of performance (COP) and Performance factor (PF) values produced are not in accordance with the standards. Chiller's COP value was 3.04 and PF was 4.04. This is of course an input that in order to maintain the performance of the cooling machine, maintenance of the chiller machine must be maintained.

Pemilihan Supplier Material Baja untuk Proyek Tower Menggunakan Metode Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) di PT. XSF

2023-12-05T09:34:59+00:00

. Determining suppliers for procurement of goods is a complex task because many criteria must be considered and some criteria are difficult to judge. Changes in supplier performance and lack of available information can complicate decision making. Selection of the right supplier can help reduce operational costs, increase profits and product quality, increase competitiveness in the market, and meet customer needs efficiently. Therefore, the purpose of this research is to develop a method that can assist practitioners in selecting suppliers logically, especially in situations of uncertainty and/or lack of information. Implementation of the multi-criteria decision making (MCDM) method is used to select the best solution based on predetermined criteria. One of the MCDM methods that can be used is the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), which was selected in several Multiple Attribute Decision Making (MADM) models because the concept is simple and easy to understand, and has several advantages. This research was conducted at a steel structure engineering and fabrication company where one of the products produced was steel construction for bridges, towers, and fabrication. The main material used is elbow steel. Due to the large number of suppliers who can provide goods, this research examines the selection of angle steel suppliers for the company's main material. The results of TOPSIS calculations in supplying the main raw materials are suppliers of PT. KW with regard to 4 criteria, namely Quality, Delivery, Warranty and Claim Policy, and Price.

RANCANG BANGUN ALAT PEMANTAU DENYUT JANTUNG DAN SUHU TUBUH BERBASIS MIKROKONTROLER MENGGUNAKAN LABVIEW DI KLINIK TAZAKKA PURWAKARTA

2023-12-11T07:47:02+00:00

Heart rate and body temperature are one of the determining factors or vital signs in the selection of health. Measurements regarding heart and body temperature are carried out to determine the clinical signs and are useful to confirm the diagnosis of a disease. In the process of checking the heart rate and body temperature still use conventional equipment such as a stethoscope and glass thermometer. The measurement process is done one by one then the process of recording the results of measurements is done by hand. this system is less effective because it takes a lot of time. In this study a monitoring system was developed that refutes the state of integrated body temperature, the measurement results related to the patient's health status installed through a desktop-based application. This monitoring process is carried out using a heart rate sensor to deny the heart rate and a DS18B20 sensor to measure body temperature. Input data processing from the second sensor is done using a microcontroller. The method used to make this research is a prototype. Overall this system is able to measure heart rate and body temperature, equipped with a user interface feature using LabView that can display heart rate, body temperature and to find out the level of health from the research results obtained an error value of 2.26% to measure heart rate and 0.81% for body temperature measurements.

Keywords: Heart Rate, Body Temperature, Automation System, Information System, LabView

Analysis of the Effect of Load and Speed on the Tire Friction Section on the Concrete Track

2023-12-11T06:25:09+00:00

Abstract. Two-wheeled vehicles, namely motorbikes, are still the mainstay as an affordable means of transportation for the majority of Indonesian people. Motorcycles are a means of transportation that are often found, both in urban and rural areas. Motorcycles have many advantages compared to other means of transportation Tires are an important part of land vehicles, tire conditions that are not in accordance with the standards can cause tire bursts which result in traffic accidents. Frictional forces that occur in the tires can cause wear on the tires. Various factors that affect wear include the speed of movement and the amount of load. In this study an analysis was carried out to find out how the effect of load and speed on the resulting frictional cross-sectional area. The analytical method used in this study is Kruskall-Wallis and Mann-Whitney. Penelitian ini menghasilkan kesimpulan bahwa faktor beban memiliki pengaruh yang signifikan terhadap penampang gesekan ban sepeda motor pada lintasan beton. Sedangkan perlakuan atau faktor kecepatan tidak memiliki pengaruh yang signifikan terhadap penampang gesekan ban sepeda motor pada lintasan beton.

Alat Kendali Ph Air dan Nutrisi Sayur Selada Berbasis Arduino Dengan Sistem Nutrient Film Technique

2023-12-11T06:44:21+00:00

Indonesia's population growth has increased every year which has an impact on the conversion of agricultural land into settlements. Hydroponics is a solution to the conversion of agricultural land. Hydroponics is a farming system without soil. In hydroponics, pH and nutrient levels are very important to keep plants growing properly. However, there are obstacles in the hydroponic farming system, namely in terms of controlling pH and nutrient levels which are still done manually. the result of not optimally controlling pH and nutrient levels in hydroponics will result in less optimal plant growth and even plant death. Therefore, we need a tool that can control pH and nutrient levels by using an Arduino microcontroller as a controller, a pH meter sensor to measure pH levels, and a TDS meter to measure nutrient levels. In this research, the hydroponic system used is the Nutrient Film Technique system, which is a hydroponic system that uses shallow water flow. This research was conducted in the hydroponic lab at the University of Perjuangan, Tasikmalaya, which still controls the levels of nutrients and the pH of the water used for hydroponic plants, which is still done manually. The results of this research are that the tool is designed to be able to maintain pH levels and nutrient levels for hydroponic lettuce plants with an error rate of 1.6% for pH sensors and 0.6% for TDS sensors which allows pH and nutrient levels for lettuce to be sufficient and stable.

Quality Control of Partially Oriented Yarn Production Using the Seven Tools Method (Case Study of Department of POY CP-3 PT. Indorama Synthetics Purwakarta Tbk)

2023-12-05T09:35:00+00:00

. PT Indorama Synthetics Purwakarta Tbk, located on Jl. Industri Ubrug kembangkuning, Kec. Babakan Cikao, Purwakarta Regency is engaged in textile, namely in terms of spinning and polyester, rayon yarn, recycled polyester yarn and blended yarn from synthetic fiber and recycled fiber. This study aims to determine the types of defects that are dominant in POY-CP3 yarn products, determine the factors that cause defects in POY CP-3 yarn products, find out how to control quality in order to reduce the amount of damage or defects in POY CP-3 yarn. In this study, the authors used data on the number of yarn defects for the period April 2022 to April 2023. This research uses seven tools in the form of flow charts, cheek sheets, histograms, scatter diagrams, pareto diagrams, cause-and-effect diagrams, and control maps. Based on the results of the research analysis, it can be concluded that although there are still defective products, the company has carried out quality monitoring starting from quality control of raw materials, process quality control. From the calculation data with C-Chart analysis that yarn defective products in April 2022 to April 2023 are outside the control limits (out of control). With product damage that is outside the control limits or out of control, the company must better maintain the production process so that damage does not occur outside the control limits. So that the production produced in the next period can meet the quality standards.

PENGENDALIAN PERSEDIAAN MATERIAL PLASTIK JENIS POLYETHYLENE TEREPHTHALATE (PET) DENGAN METODE ECONOMICAL ORDER QUANTITY (EOQ) PROBABILISTIK (Studi Kasus : PT. Penjalindo Nusantara)

2023-12-05T09:35:01+00:00

Penjalindo Nusantara which is a company engaged in printing or printing, especially packaging or packaging printing. In the process of purchasing materials at PT. Penjalindo Nusantara has problems with late delivery of materials from Vendors, which affects the production process. Based on these problems, it is necessary to conduct research on inventory control using the Probabilistic Economic Order Quantity (EOQ) method. The results of the research analysis using the Probabilistic Economic Oder Quantity (EOQ) method show that the company can place an optimal order of 6330 kg for each order with a safety stock of 325 kg, the company makes a Reorder Point when inventory reached 3055 kg.

Analisa Bauran Pemasaran Terhadap Volume Penjualan (Studi Kasus Toko Pakaian Boysdontcry)

2023-12-11T06:49:07+00:00

Boysdontcry is a business engaged in fashion distros. Sales volume at Boysdontcry has decreased and increased, so researchers analyze whether the strategy implemented by Boysdontcry is right. Data analysis in this study uses quantitative analysis methods, namely by managing data presented in the form of frequency and percentage tables, in this study using simple regression analysis methods using statistical application software tools SPSS (Statistical Program for Social Science)). The validity test is used to measure the appropriateness or absence of a questionnaire and produce a valid value, namely the r value of the table r count. The overall reliability test of the question items from each variable can be used and can be distributed to all respondents, because each item shows valid and reliable results based on the results of constant value data of 1.394. Stating that the regression coefficient of 0.204 means that the marketing mix has a positive relationship with sales volume. Every 1 unit increase in the marketing marketing mix will affect the average sales volume increase of 0.204. Conversely, every decrease in sales volume will affect the average decrease in marketing mix by 0.204.

Penentuan Harga Pokok Produksi Pada Benang Poliester Dengan Metode Abc (Studi Kasus : PT. Indorama Synthetics)

2023-12-05T09:35:01+00:00

Penentuan biaya produksi HPP merupakan salah satu aspek penting dalam pengelolaan produksi suatu perusahaan. Harga pokok produksi yang akurat dan terperinci diperlukan untuk menghitung laba yang dihasilkan dalam penjualan produk, serta untuk membuat keputusan strategis terkait dengan penetapan harga jual, mengalokasikan sumber daya dan mengevaluasi kinerja perusahaan. Salah satu jenis produk yang populer di industri tekstil adalah benang polyester. Benang poliester digunakan dalam berbagai aplikasi seperti pakaian, kain dan tekstil teknis. Indorama Synthetics adalah salah satu perusahaan terkemuka di Indonesia yang bergerak di bidang produksi benang polyester. Tujuannya adalah untuk mengetahui biaya produksi (HPP) menggunakan metode tradisional, untuk mengetahui biaya produksi (HPP) menggunakan metode ABC, dan untuk mengetahui perbandingan biaya produksi menggunakan metode tradisional dan metode ABC. Metode tradisional adalah pendekatan yang umum digunakan dalam menghitung biaya produksi. Metode ini biasanya didasarkan pada alokasi biaya yang proporsional berdasarkan volume produksi atau faktor tradisional seperti jam kerja langsung atau biaya bahan baku. Metode ABC merupakan pendekatan yang mempertimbangkan kegiatan yang dilakukan dalam proses produksi dan mengalokasikan biaya overhead secara proporsional berdasarkan konsumsi aktivitas oleh masing-masing produk. Berdasarkan hasil perhitungan di PT. Indo-Rama Synthetics Tbk, perbandingan Biaya Produksi menggunakan metode ABC untuk produk A benang polyester dengan jenis benang sutra adalah Rp 24.000 dan produk B benang polyester dengan jenis benang sintetis adalah Rp 20.000

DESIGN OF WEB-BASED SPARE PARTS INVENTORY INFORMATION SYSTEM USING THE RAD METHOD

2023-12-05T09:35:01+00:00

Abstract. This research was conducted at CV. Supra Jaya Motor engaged in the Automotive sector. Actually CV. Supra Jaya Motor already has inventory rules for goods sold every day, where the inventory is made to be reported to the Head Office. There are two types of inventory that are carried out, namely Daily and Monthly inventory. Inventory management is very important for achieving performance productivity within the Company in managing goods and stock of goods in the warehouse. One of the main obstacles is in carrying out spare parts sales inventory activities because at this time the running system still has deficiencies such as searching for spare parts information data, recording data, and making reports which take quite a long time because it is done manually so that employees feel hampered in doing work, especially in terms of data collection inventory sales of spare parts.Therefore, researchers propose a solution by creating a system that is able to answer the problems that occur in CV. Supra Jaya Motor, namely making a web-based application that can be accessed by users who have certain access rights. Based on the concept of Rapid Application Development (RAD). In designing the spare parts inventory sales information system, it can help improve time efficiency in collecting data on spare parts that have been sold to customers and provide more accurate and precise information and facilitate reporting of spare parts inventory sales to managers.

Analisa Pengambilan Keputusan Pemilihan Venodr Seragam Dengen Merode Analytical Hierarchy Proces (AHP) ( Studi Kasus General Affairs PT Penjallindo Nusantara)

2023-12-05T09:35:03+00:00

Decision makers need analytical tools that allow them to solve problems. Decisions to be taken are complex with major risks such as policy formulation, decision makers often need tools in scientific, logical, and structured forms. To determine the priority stages of criteria in order to obtain the most optimal results in returning uniform vendor selection decisions at PT Penjalindo Nusantara (Metaform) using the AHP (Analytical Hierarchy Process) method. In essence, AHP is a comprehensive decision-making model by taking into account qualitative and quantitative matters. There are three main principles in problem solving in AHP, namely: Decomposition, Comparative Judgment, and Logical Concistency. Bycomparing in pairs to determine the priority weight on each criterion and alternative. One of the paired comparisons is carried out in pairwise comparisons between criteria. Vendor selection criteria include quality, price, flexibility, delivery and service criteria. . Compiling alternatives that have been determined in the form of matirx in order to obtain the assessment weight of each variable, a table of pair comparison rating scales is made. Based on the results of the AHP calculation, each weight for each venodr is obtained PT Intan of 0.62860 and the weight value of the Super Decision is 0.638683. PT Parahita as a vendor with a weight value of 0.20475 and a weight value in Super Decision of 0.203985. PT Marcapada with a weight value of 0.16665 and a weight value in Super Decision of 0.159189. So the main uniform supplier is PT Intan with the largest weight.

English USER SATISFACTION ANALYSIS OF WEBSITE-BASED GRADUATION INFORMATION SYSTEM USING THE PIECES FRAMEWORK METHOD

2023-12-11T06:57:18+00:00

The world of education today is very dependent on technological advances. The use of these technologies can be utilized as a medium of information. Especially in education at the high school level, the use of technology is necessary to facilitate students. One of the high schools that has used technological advances, especially in information media, is the State Vocational High School (SMKN) 1 Cibatu. The Graduation Information System is an information medium that is currently used by SMKN 1 Cibatu which is already online-based so that information media can be accessed anytime anywhere. However, at this time the developer or school wants to know whether the use of the Graduation Information System is correct or has not been used by its users, an analysis is needed with the aim that later it can be used as a reference for system developers or the school itself in improving/developing information media. so that the media information is made in accordance with the expectations desired by the user. This study uses the PIECES framework analysis method, which is an approach to determine user satisfaction so that maintenance or sustainable development can be carried out later. The output in this study is the result of an analysis of user satisfaction which will later be used as a reference by the developer or the school to develop an even better system.

Penerapan Keselamatan Kerja Dengan Metode Fault Tree Analysis (FTA) Untuk Meningkatkan Produktivitas Kerja Di Pd. Sinar Mekar

2023-12-11T07:19:22+00:00

Sinar Mekar is a business engaged in the production of sills. Like other companies, UD Sinar Mekar faces problems such as residual production waste that is around the work floor which is very disturbing in the production process which can cause work accidents which can have a negative impact on employee productivity and safety. Then the amount of ventilation is lacking, so that employees feel uncomfortable at work, and are not enthusiastic about carrying out their activities. Insufficient lighting results in the worker's eyes not being able to see clearly during the cutting process and results in the worker's finger being hit by the cutting knife.

This research is to find out the factors that cause work accidents at UD. Sinar Mekar using Fault Tree Analysis (FTA) and safe T score calculation. Based on the results of calculations in 2018, there were 3 accident victims at work, namely, 1 person in January did not put the item properly so that when working, the foot fell over the item, 1 person in March Worked jokingly which resulted in a pallet being squeezed, 1 person in December Not using a mask. In 2019, there were 4 accident victims at work, namely 1 person in January. Affected by a doctor blade, 1 person in March. Working while joking which resulted in a pallet being squeezed, 1 person in August Not wearing PPE, finger exposed to caterpillars, 1 person in October, eyes often get stuck dust. In 2020 there were 2 accident victims at work, namely, 2 people in April with 2 incidents where the material was installed incorrectly, they did not use PPE.

WEBSITE PENGADUAN MASYARAKAT DESA SUKARAPIH MENGGUNAKAN METODE PROTOTYPE

2023-12-11T07:32:18+00:00

Salah satu Peningkatan kualitas pelayanan public bagi masyarakat pedesaan adalah dapat dengan dilakukan melalui sebuah penyelesaian pengaduan yang mendapatkan respon yang cepat dari penyedia layanan yaitu dalam hal ini instansi pemerintah terkait baik di pusat maupun daerah. Segala bentuk kritik, saran maupun aduan yang disampaikan masyarakat pada suatu instansi merupakan sebuah koreksi untuk perbaikan pelayanan tersebut. Banyak Kantor Desa di Indonesia belum memiliki sistem layanan pengaduan yang teridentifikasi dan terdokumentasi dengan baik, sehingga timbul kendala dalam memberikan layanan pengaduan kepada masyarakat, seperti respon time pelayanan yang lambat dan dokumentasi pengaduan tidak tertata dengan rapi.

Kendala lain timbul saat masyarakat kebingungan untuk menyampaikan keluhan tersebut dikarenakan tidak mengetahui harus mengadu kemana. Untuk mengatasi masalah tersebut, akan dirancang aplikasi layanan pengaduan berbasis Website yang menggunakan model prototype dan menggunakan MySql sebagai database pada server yang digunakan. Dengan itu diharapkan agar dapat memudahkan masyarakat dalam membuat laporan pengaduan. Aplikasi Website ini dapat digunakan masyarakat untuk melakukan layanan pengaduan secara online. Aplikasi ini juga dapat memudahkan Pemerintah desa dalam melakukan dokumentasi dan mengevaluasi sistem layanan pengaduan masyarakat desa.

PENERAPAN KANSEI ENGINEERING PADA PERANCANGAN USER INTERFACE WEBSITE DIGITECT UNIVERSITY

2023-12-11T07:28:04+00:00

Seiring dengan semakin pesatnya perkembangan teknologi diantaranya perkembangan

teknologi website saat ini maka semakin mudah akses terhadap informasi yang dibutuhkan. Website

merupakan salah satu faktor penting bagi setiap organisasi khususnya lembaga pendidikan karena

dapat memberikan kemudahan dan dapat menyajikan banyak informasi yang dibutuhkan oleh

masyarakat. Tampilan website menjadi salah satu faktor penting oleh karena itu dibutuhkan

perancangan user interface yang menarik dan efektif agar pesan dapat tersampaikan dengan baik.

Dalam proses desain sebuah produk yang penggunanya adalah manusia, maka tidak terlepas dari

ilmu Human Computer Interaction (HCI). Thomas T. Hewett dan rekan-rekannya dalam organisasi

Special Interest Group on Computer-Human Interaction (SIGCHI) mendefinisikan HCI sebagai

disiplin ilmu yang berkaitan dengan desain, evaluasi dan implementasi sistem komputasi interaktif

untuk penggunaan oleh manusia dan untuk studi seputar fenomena yang ada di sekitarnya (Hewett,

2009). Penelitian ini telah mengimplementasikan Kansei Engineering untuk menghasilkan

rekomendasi konsep desain tampilan website Digitect University. Daftar kansei word yang digunakan

sebanyak 15 kata dan spesimen website yang dipilih sebanyak 15 spesimen. Penelitian ini

melibatkan 70 partisipan yang terdiri dari6 0orang mahasiswa dan 10 orang dosen. Hasil kuesioner

dari partisipan kemudian diolah dengan menggunakan analisis statistik multivariat yakni Cronbach’s

Alpha, Coefficient Correlation Analysis (CCA), Principal Component Analysis (PCA), Factor Analysis

(FA) dan analisis Partial Least Square (PLS). Penelitian ini menghasilkan produk desain dengan

konsep desain untuk seluruh partisipan menghasilkan konsep emosi “MEWAH”.

Kata kunci: Kansei Engineering, User Interface, Perasaan, Perguruan Tinggi, Website

ANALYSIS OF TABLE DRAW DAMAGE ON KLOOP MODEL 525 TYPE SCREWING MACHINE

2023-12-11T07:39:36+00:00

The development of science and technology has an important role in the success of development in the industrial sector. In the industrial world, machining processes are very important. A scrap machine is a machine tool that is used to change the surface of a workpiece into a flat surface with levels, corners and grooves.This research aims to find out the causes of damage to the automatic movement of the table, to determine the strength of the material using impact testing and calculating torsional moments, and to be able to repair damage using the welding method using brass. Damage that occurs to the automatic movement of the table is caused by the final limit of the moving table being exceeded. On a sledding table there is no final limit for the moving table, when the final limit for the moving table occurs, the automatic moving machine continues to work and exceeds the material strength limit of 14,133 joules and 1422 N.m, causing the nut to be damaged. Repairing the sliding table nut is done by welding. This welding is carried out using brass, brass is used because it has high wear resistance.

Keywords: Scrap Machine, torsional moment, impact test, cause of damage.