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All Journal Jurnal Sains dan Teknologi Gemawisata: Jurnal Ilmiah Pariwisata SITEKIN: Jurnal Sains, Teknologi dan Industri Proceeding Seminar LPPM UMP Tahun 2014 Profesi Pendidikan Dasar Jurnal Rekayasa Mesin JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Kultivasi Jurnal Pertanian Terpadu Khairun Law Journal PeTeKa Jurnal PTK dan Pendidikan Jambura Journal of Community Empowerment Psychosophia: Journal of Psychology, religion, and humanity Community Development Journal: Jurnal Pengabdian Masyarakat Kepariwisataan: Jurnal Ilmiah Jurnal Kajian Ilmiah Community Empowerment Pedagogia: Jurnal Ilmiah Pendidikan Dasar Indonesia Journal of Industrial Engineering & Management Research (JIEMAR) Mitra Mahajana: Jurnal Pengabdian Masyarakat KHAIRUN LAW JOURNAL Indo-MathEdu Intellectuals Journal Jurnal Ilmu Manajemen, Ekonomi dan Kewirausahaan Eksergi: Jurnal Teknik Energi Jurnal Ekonomi, Manajemen Pariwisata dan Perhotelan Jurnal Psikologi Insight Jurnal Pengabdian Masyarakat Waradin Sewagati: Jurnal Pengabdian Masyarakat Indonesia Nawasena: Jurnal Ilmiah Pariwisata Jurnal Indonesia Sosial Sains Jurnal Pengabdian Masyarakat Bangsa Ranah Research : Journal of Multidisciplinary Research and Development PSIMPHONI Bookchapter Alam Universitas Negeri Semarang Waspada : Jurnal Wawasan Pengembangan Pendidikan Prosiding Seminar Nasional Biologi Journal of Community Empowerment Jurnal Sosialita: Jurnal Kajian Sosial dan Pendidikan Jurnal Ekonomi, Manajemen Pariwisata dan Perhotelan
Suwarti Suwarti
Fakultas Psikologi - Universitas Muhammadiyah Purwokerto
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Other

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Energy Audit of Flouresen Lights at School Building C III Floor Politeknik Negeri Semarang Supriyo, Supriyo; Margana, Margana; W, Wiwik Purwati; Suwarti, Suwarti; Mulyono, Mulyono
Eksergi Vol. 18 No. 3 (2022): SEPTEMBER 2022
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v18i3.3890

Abstract

Energy audit is very necessary to calculate the level of energy consumption of a building or buildings. The research includes the amount of energy consumption based on the initial energy audit and detailed energy audit as well as saving opportunities based on conditions in the field. Based on the initial energy audit, the value of the Energy Consumption Intensity (IKE) is 0.699 kWH/m2month, while in the detailed audit the IKE value is 0.935 kWH/m2month. Based on the results of a detailed energy audit, the lighting measurement of 325 lux still meets the requirements for a classroom with a standard between 250 lux to 500 lux.
Monitoring of iot-based Wind and Solar Hybrid Power Plants for Agricultural Irrigation Systems Prasetiyo, Budhi; Widyaningsih, Wiwik Purwati; H, Yusuf Dewantoro; Suwarti, Suwarti
Eksergi Vol. 18 No. 3 (2022): SEPTEMBER 2022
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v18i3.3892

Abstract

The use of renewable energy, one of which is Hybrid Power Plants   (PLTH). The PLTH used in this study is a wind and solar power plant. To keep the plant from being damaged and prevent a decrease in tool performance, PLTH was developed based on the Internet of Things (IoT).   IoT will later monitor the performance of the plant.   In this study using the ESP32 TTGO SIM800L microcontroller, the sensors used were DC voltage sensors, current sensors (ACS712), wind speed sensors (anemometers), wind direction sensors (wind vanes), and water flow sensors.   The research began with designing the relationship between components, working on monitoring and programming systems on software, installing outdoor sensors and installing monitoring systems, and ending with data observations.   The results   obtained on the observation of data, the best error percentage values   are presented by various sensors with values less than 6%.
Dual Axis Solar Tracker System Application Based on Arduino Atmega 2560 and Internet of Things (iot) for Submersible Pump Operation Wahyono, Wahyono; Suwarti, Suwarti; H, Yusuf Dewantoro; Citraningtyas, Dita Putri; Ardiansyah, Muhammad Ridho; Cahyani, Regita Fitri; Prihartini, Retno; Pangestu, Wisnu
Eksergi Vol. 18 No. 3 (2022): SEPTEMBER 2022
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v18i3.3910

Abstract

Most of the Solar Power Plants (PLTS) still use a static system which is considered less effective in absorbing solar energy. This is due to the earth's rotation which causes the sun to not always be in the same position. In order to optimize the absorption of solar energy so that the power produced is stable and maximum, a tracking system is applied to the solar panels. This tool works by using 4 LDR sensors and 2 DC Power Window motors as the driving force and the presence of Wi-Fi as a communication medium between the Arduino ATmega 2560 and the Android application so that the performance of the solar tracker can be monitored via a smartphone in real time. The purpose of this research is to optimize the efficiency of solar panels. The method used in this research is Research and Development (R&D). The test was carried out with the Dual Axis Solar Tracker system against a load in the form of a submersible pump. The test results show the average efficiency of the Dual Axis Solar Tracker system is 20.89% with an average power output of 84.81%.
Analysis of The Utilization of Solar Panels as Pump Crusters Automatically in Fish Pond Farming Suwarti, Suwarti; H, Yusuf Dewantoro; Su'udy, Ahmad Hamim; Prasetyo, Budhi; Margana, Margana; W, Wiwik Purwati; Supriyo, Supriyo
Eksergi Vol. 19 No. 01 (2023): JANUARY 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v19i01.4246

Abstract

Abstract”” The purpose of making this final task is to apply the solar power system as a source of electrical energy to move the water pump automatically in fish ponds. This system works automatically with the Water Level Control tool sensor (WLC), so that if the water level drops or rises then the water pump will automatically work. On this automated system use the Smart Relay SR2B121BD and the ZelioSoft 2 application.  Data retrieval carried out at 10.00 -14.00 WIB, obtained data pumps 1 and 2 for a height of 1 cm for 30 minutes and a height of 2 cm for 70 minutes. The amount of discharge the pump produces 1 and 2 ranges from 37 L/M to 45 L/M.    Pump 1 Test results obtained an average efficiency of 7.68%, with the highest efficiency of 11.03% and the lowest efficiency of 5.26%, while the average pump efficiency of 2, 7.05% with the highest efficiency of 10.66% and the lowest efficiency of 5.41%. The average efficiency of the solar panels is 11.20% with the highest efficiency of 14.60% and the lowest efficiency of 7.29%.  
Study of solar power plants as an aerator driver based on the Internet of Things (IoT) Margana, Margana; Wahyono, Wahyono; Hermawan, Baktiyar Mei; W, Wiwik Purwati; Suwarti, Suwarti; Aulia, Nur Fatowil; Solikhin, Akhmad Riadzus
Eksergi Vol. 19 No. 2 (2023): MAY 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v19i2.4479

Abstract

The use of solar power plants is now developing, for example aerator drives with the Internet of Things. The purpose of designing aerators with the Internet of Things is to utilize programming instructions that each command can generate interaction with fellow devices and connect automatically without user intervention, even remotely. This research method begins with the study of literature, manufacture, installation of components, as an analysis carried out testing and data collection. The results of the tests conducted on day 5 include, the best solar radiation intensity power of 886.786 W/m2, the power produced by solar cells of 473.099 W and aerator power of 75.843 W, solar panel efficiency of 14.749%. and PLTS system efficiency of 4.275%. In this test, it was found that the addition of aeration can increase oxygen concentration and pH value of water.                                                                Keywords- Aerator, PLTS, Performance      
Analysis Of Solar Power Plants With A Capacity Of 100 Wp With Automatic Transfer Switch In The Energy Conversion Laboratory Of Semarang State Polytechnic Suwarti, Suwarti; Aulia, Nur Fatowil; Wahyono, Wahyono; Prasetyo, Budhi; Hendrawati, Dwiana; Hermawan, Baktiyar Mei
Eksergi Vol. 20 No. 02 (2024): MAY 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v20i02.5807

Abstract

Solar energy is one of the renewable energy sourcesby utilizing the sun as its energy source. The planning of thePLTS uses an on-grid system, the system is still connected tothe PLN network. The system is used as a backup forelectricity flow. The system will work automatically when thePLN electricity flow is cut off by utilizing the AutomaticTransfer Switch (ATS) control system. The PLTS was tested bymeasuring the voltage, current, and input and output powerfor 5 days from 09.00-15.00 WIB with data collection every 60minutes. Then calculations were made to determine theefficiency of the PLTS. Calculations were also made of theenergy produced by the panels needed and produced by thelights ideally and actually. The results of the DC voltage andDC current tests on average at a load of 70 Watts produced bythe solar panel were 12.7 V and 2.41 A with a data collectionperiod of 7 hours, producing energy of 214.3 Wh andproducing the highest efficiency of 7.9% and the lowest 4.84%.
Peningkatan Aktivitas dan Prestasi Belajar Matematika Materi Pengolahan Data Menggunakan Metode Kerja Kelompok pada Siswa Kelas VI SDN 3 Sribhawono Lampung Timur TP 2017/2018 Suwarti, Suwarti
Pedagogia: Jurnal Ilmiah Pendidikan Dasar Indonesia Vol. 3 No. 2 (2021): Pedagogia
Publisher : Program Studi PGSD, Jurusan Ilmu Pendidikan, STKIP PGRI Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52217/pedagogia.v3i2.22

Abstract

The purpose of this study is to describe the increase in learning activity and achievement using the group work method, in class VI mathematics learning at SDN 3 Sribhawono East Lampung TP 2017/2018. The method used is Classroom Action Research (CAR). Data collection techniques with observation guidelines to obtain data about student learning activities and learning achievement tests at the end of each research cycle. Furthermore, the data obtained were analyzed descriptively qualitatively. The results showed that the use of the group work method can increase the activity and achievement of learning mathematics in class VI SDN 3 Sribhawono Lampung.
PENGEMBANGAN CHATBOT LAYANAN DAN INFORMASI LABORATORIUM FISIOLOGI TUMBUHAN FMIPA UNNES BERBASIS TELEGRAM Sriyadi, Sriyadi; Hadiyanti, Lutfia Nur; Suwarti, Suwarti; Pambudi, Ryo
Prosiding Seminar Nasional Biologi Vol. 13 (2025)
Publisher : Prosiding Seminar Nasional Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Laboratorium merupakan tempat untuk melakukan kegiatan akademik berupa praktikum, penelitian dan pelatihan, serta dapat diberdayakan untuk melakukan aktivitas penunjang Tri Dharma Perguruan Tinggi. Laboratorium Fisiologi Tumbuhan FMIPA UNNES terus berupaya untuk memberi pelayanan yang terbaik. Permasalahan yang diungkapkan penelitian ini adalah belum tersedianya sistem informasi dan layanan laboratorium fisiologi tumbuhan secara online. Informasi dan layanan laboratorium sudah tersedia namun pengguna harus datang ke laboratorium apabila hendak mendapatkan informasi dan layanan laboratorium. hal ini tentu saja tidak sesuai dengan prinsip kecepatan dan kemudahan layanan laboratorium. Adapun tujuan dari penelitian ini adalah yang pertama perlunya menyusun informasi Laboratorium Fisiologi Tumbuhan secara sistematis, lengkap dan terbaru. Yang kedua merancang sistem informasi dan layanan laboratorium Fisiologi Tumbuhan yang dapat diakses dengan mudah dan cepat. Pada penelitian ini diusulkan sebuah solusi dengan mengembangkan Chatbot informasi dan layanan laboratorium berbasis telegram. Metode pengembangan yang digunakan untuk membangun perangkat lunak Chatbot menggunakan model waterfall. Pengembangan dimulai dengan, analisis kebutuhan, perancangan, implementasi (pemrograman), pengujian, dan perbaikan aplikasi. Hasil dari penelitian ini, berupa rancangan Chatbot berbasis Telegram. Chatbot menyediakan berbagai informasi dan layanan laboratorium sebanyak delapan kategori perintah atau menu sebagai prototype awal. Dari hasil pengujian yang telah dilakukan, perintah masing-masing kategori informasi dan layanan dapat berjalan dengan baik dan memberikan respon sesuai yang diharapkan. Chatbot dapat digunakan sebagai media informasi dan layanan laboratorium Fisiologi Tumbuhan FMIPA UNNES yang dapat diakses oleh pengguna dengan mudah dan cepat.
Design of A Portable Trainer Simulation of Coal Distribution and Boiler Water Control Process in PLTU Based on PLC Suwarti, Suwarti
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 19, No 2 (2022): Juni 2022
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v19i2.22452

Abstract

The purpose of this research is to simulate the coal distribution process using a conveyor and water regulation in the boiler whose program is made using PLC-based CX-Programmer software. The first method used in the conveyor work process is to install several lights and 2 motors on each conveyor as many as 5 conveyors are connected with a timing belt as an indicator that the conveyor is working. The second method used in the simulation of water regulation in the boiler is almost the same as the conveyor system, namely by installing several motors and lights as indicators of the boiler working, as well as adding a high/medium/low sensor to adjust the water level. The conveyor and boiler systems work automatically using PLC devices that have been programmed through the CX-Programmer. In the 3-phase (reverse-forward) motor load test, the following data were obtained: PLC input voltage is 224 Volts, V line voltage is 396 Volts, motor input voltage is 398 Volts, and motor current is 1,6 Ampere. The result of this research are used as additional measurable equipment in the energy conversion laboratory which previously amounted to 2 test equipment into 3 test equipment.
Analisis Arus, Tegangan dan Daya Automatic Transfer Switch pada Pembangkit Listrik Tenaga Surya Dengan Kapasitas 1200 WP Suwarti, Suwarti; Margana, Margana; Widyaningsih, Wiwik Purwati; Mulyono, Mulyono; Prasetiyo, Budhi; Brilliyan, Yoga Rizky; Supriyo, Supriyo; Wahyono, Wahyono
Jurnal Rekayasa Mesin Vol. 18 No. 3 (2023): Volume 18, Nomor 3, Desember 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i3.5183

Abstract

Energi matahari banyak memberikan manfaat bagi kehidupan manusia. Salah satu pemanfaatan energi surya yang bisa dilaksanakan adalah dalam bentuk Pembangkit Listrik Tenaga Surya (PLTS), dalam pelaksanaanya sistem PLTS tidak dapat terus-menerus melayani beban, maka dari itu perlu adanya switching dari sumber PLTS ke sumber PLN sebagai backup. Automatic Transfer Switch merupakan salah satu komponen yang bisa digunakan pada rangkaian sistem PLTS tersebut. Sedangkan tujuan dari penelitian adalah untuk menganalisa Automatic Transfer Switch yang dipasang pada PLTS dengan kapasitas 1200 Wp. Metode yang digunakan dalam analisis ini yaitu melakukan tinjauan pustaka, membandingkan jurnal yang berkaitan dengan judul di atas, dan melakukan percobaan pengambilan data. ATS tersebut diuji dengan cara mengukur tegangan, arus, dan daya masukan maupun keluaran saat switching. PLTS mulai beroprasi pada pukul 06.30 hingga pukul 19.15, ATS melakukan switching otomatis pada pukul 06.30 dan 19.15 jika daya PLTS mencapai 45,7V, ATS langsung menghubungkan daya ke PLN supaya beban pompa tetap menyala sampai daya PLTS pulih kembali.
Co-Authors Abdillah, M.L. Abdul Fattah Ade Galang Saputra Adiba, Azka Fikral Agustini, Ferina Ahmad Hamim Su’udy Alfi Laila, Alfi Aminuyati An Nizhami, Avicenna Aries Tika Damayani Aries Tika Damayani, Aries Tika Atmojo, Slamet Priyo Aulia, Nur Fatowil Aurilia Triani Aryaningtyas Ayni, Nurul Bono Bono Brilliyan, Yoga Rizky Budhi Prasetiyo Budhi Prasetyo Cahyani, Regita Fitri Citraningtyas, Dita Putri DEWI SARTIAMI Dewi, Syavira Berliana Syaskia DH, Yusuf Dwiana Hendrawati Dyah Astorini Wulandari Dyah Rini Indriyanti Elhas, Rivan Ma’rivan Erwin Putera Permana F Gatot Sumarno, F Gatot F. Gatot Sumarno, F. Gatot Fajri, Amrisal Kamal Fakhri Dzulfikar, Hafidh Gatot Suwoto Ghoni, Fathi Abdul H, Yusuf Dewantoro Hakim, Jihan Hamim Su'udy, Ahmad Hani Krisnawati Hartanto, Jimmy Herawati Herawati Herdian, Herdian Hermawan, Baktiyar Mei Hermawan, Natanael Yonando Heryanto, Rubi Husen Alting Ibrahim, Nandhi Lathief Idah Kusuma Dewi Imam Faisal Hamzah Inke Pratiwi, Inke Irawan, Muhammad Raynaldi Akbar Putra Isworo, Diantri Nurjati JANNAH, MIFTAKUL Kharie, Maharani Magfira Khoiroh, Ikhwatinah Labibah, V.R. Lahan Adi Purwanto Laia, Flores H. Lutfia Nur Hadiyanti, Lutfia Nur Malik, Faissal Margana Margana MIFTAKHUROHMAH MIFTAKHUROHMAH, MIFTAKHUROHMAH Mildaeni, Itsna Nurahma Mildaeni, Itsna Nurrahma Mochammad Denny Surindra Muhammad Azrai, Muhammad Mulyono Mulyono N., Ajie Pribadi Nanang Apriandi Nani Nasikhatun, Ikhda Naufal Hanif, Daffa”™ Na’imah, Tri Nina Mistriani Nining Nurini Andayani, Nining Nurini Noveni, Nia Anggri Nur'aeni, Nur'aeni Padang Yanuar Pangestu, Wisnu Prabowo, Bayu Ade Prihartini, Retno Priyantini Widiyaningrum Priyanto, Slamet Bambang Purwasih, wahyu Purwati W, Wiwik Putri, Amelia Lufitta Putriningsih, Tiara Sanika L. Putriningsih, Tiara Sanika Langsa R, Rizky Amelia Rahmah Maulida Rahman, Ayyub Ar Rani Raharjanti Ray Octafian Retno Dwiyanti Rizky Esti Utami, Rizky Esti Rohimatun Rohimatun, Rohimatun Roro Setyawati, Roro Rr. Setyawati Ryo Pambudi, Ryo S, Ayu Kurnia Salsabila, Aulia Muti’ah Samaratungga, Langga SETYOWATI RETNO DJIWANTI, SETYOWATI RETNO Siti Hardiyanti Siti Sarah, Siti Slamet Priyoatmojo, Slamet Solichoel, Solichoel Solikhin, Akhmad Riadzus Sri Ngabekti Sriyadi Sriyadi, Sriyadi Stiawan, Dani Sugiyanto, Estia Sugiyanto, Estia Dwi Supriyo Supriyo Sutanto, Bayu Suwardi Suwardi Syamsul Hadi Timotius Anggit Kristiawan Titik Minggarwati, Titik Tito Pinandita Tomayouw, Eko Budianto Trenggono, Trenggono Tri Lestari Mardiningsih, Tri Lestari Ugung Dwi Aryo Wibowo, Ugung Dwi Veryliana Purnamasari, Veryliana W, wiwik Purwati Wahidah, Fatin Rohmah Nur Wahyono Wahyono Wahyuningtyas, Saskia Widi Amaria Widya Larassanti, Sri Wiwik Purwati Widyaningsih Wuntu, Gana Wuri Noro Gurnita, Wuri Noro Yusuf Dewantoro Herlambang Z. Imam, Wahda