R.E.M. (Rekayasa Energi Manufaktur) Jurnal https://rem.umsida.ac.id/index.php/rem <h3 class="mycustom-background">Focus to facilitate scholar, researchers, and teachers for publishing the original articles of review articles. Scope: Mechanical Engineering include: Energy Conversion; Renewable Energy; Manufacturing; Materials and Design Engineering; Mechatronics.</h3> Universitas Muhammadiyah Sidoarjo en-US R.E.M. (Rekayasa Energi Manufaktur) Jurnal 2528-3723 Using the MPX5500DP Sensor for Monitoring Microcontroller-Based HVAC Systems and IOT https://rem.umsida.ac.id/index.php/rem/article/view/1660 <p><em>MPX5500DP is a sensor designed to measure how much air pressure is traveling in a channel or piping system. The MPX5500DP sensor has an analog output value that can be converted into a digital signal to display data on how much air pressure is being generated. By utilizing the MPX5500DP sensor the purpose of this study is to measure air pressure in HVAC systems with Micro SD data storage and IOT (Internet Of Things) based Web Browsers. The method used in implementing the MPX5500DP sensor is, selecting materials, making tools, installing sensors and testing. The test results obtained from Micro SD storage are the average air pressure value of 15.76 kPa. The IOT test produced an average air pressure of 15.67 kPa. At the time of testing, there were problems where data transmission was very slow so that for 30 minutes the test only received 14 air pressure data that were read on the Web Browser, namely ThingSpeak. However, the IOT test on an air pressure gauge using the MPX 5500DP sensor was successful. The success of the IOT system in monitoring HVAC air pressure can assist in monitoring the HVAC system in multi-storey buildings.</em></p> Rizki Aulia Nanda Agus Supriyanto Karyadi Fathan Mubina Dewadi Copyright (c) 2023 Rizki Aulia Nanda, Agus Supriyanto, Karyadi, Fathan Mubina Dewadi https://creativecommons.org/licenses/by/4.0 2023-02-22 2023-02-22 8 1 1 8 10.21070/r.e.m.v8i1.1660 A Mapping Research on Cofiring from 1979 - 2022: Bibliometric Analysis https://rem.umsida.ac.id/index.php/rem/article/view/1664 <p><em>This study aims to investigate cofiring-themed articles through Bibliometric analysis using Biblioshiny. The metadata comes from the Scopus database, obtained using the keyword "cofiring". Nine hundred twenty-nine documents were obtained over 44 years (1979 – 2022). The study results show that the USA and China are hosts for cofiring researchers. The most relevant author and affiliate is from China, namely Longtu Li from Tsinghua University. The USA is the largest reference country for cofiring research. Cofiring research trends are divided into two clusters: the energy and power generation research cluster and the chemistry and ceramic materials research cluster. In energy and power generation research, three research themes relevant to current and future conditions are related to coal, biomass, and emission. The results of this study provide a comprehensive picture to academics in the fields of energy, power generation, chemistry, and materials science.</em></p> Muhammad Farras Ilham Muchammad Marcelinus Christwardana Copyright (c) 2023 Muhammad Farras Ilham , Muchammad, Marcelinus Christwardana https://creativecommons.org/licenses/by/4.0 2023-04-01 2023-04-01 8 1 9 20 10.21070/r.e.m.v8i1.1664