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All Journal Journal of Electronic and Electrical Power Application Green Engineering: Journal of Engineering and Applied Science J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Kholistianingsih
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Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering

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DESIGN OF AN AUTOMATIC DECORATIVE PLANTS WATERING SYSTEM USING THE BLYNK APPLICATION BASED ON MICROCONTROLLER AND SOLAR PANEL Darmawan, Isra' Nuur; Wahjudi, Dody; Septia Nugroho, Rudi; Kholistianingsih
Journal of Electronic and Electrical Power Applications Vol. 3 No. 2 (2023): JEEPA Volume 3 Nomor 2
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58436/jeepa.v3i2.1666

Abstract

Just like humans, plants need water for their growth and development. Plants should not have a lack or excess of water, soil that lacks water makes plants develop slowly and in ornamental plants makes the plants look not fresh and wilted and vice versa, plants that have too much water also make the plants unhealthy and can even cause the plants to die. The aim of the research is to design and build an automatic plant watering device that can be controlled remotely via an Android smartphone application, to determine the response speed of the tool in executing commands given by the user via the Android application, to find out the benefits of solar panels in order to save electricity usage in watering. Ornamental Plants by determining tool needs from various literature and collecting data from internet references and books as well as data that is needed and analyzing the components needed to make tools. The results of the research produced points, namely success in designing an automatic plant watering device based on the Wemos D1 R1 Microcontroller with the Blynk Application on Android as a remote control, the results of the characterization of the type of sensor used, namely the Soil sensor. Senor Soil has an accuracy of 98.65% and a standard deviation of ±0.14 for air temperature measurements and an accuracy of 98.72% and a standard deviation of ±0.38 for air humidity readings, the updated data on the Blynk Application is in accordance with the data sent by the Wemos D1 R1 Microcontroller. There is a time difference of 1 second between the data transmission time by the Wemos D1 R1 Microcontroller and the data reception time by the Blynk Application. The automatic plant watering tool that has been designed has a response speed of 2 seconds, starting from the time the user gives the command via the Blynk Application on the Smartphone until the device start the watering process
DESIGN AND CONSTRUCTION OF NOISE DETECTION DEVICE WITH ARDUINO-BASED SOUND SENSOR MIC IN THE LIBRARY Wahjudi, Dody; Darmawan, Isra' Nuur; Kholistianingsih; Rifadila Fahmi, Ananda
Journal of Electronic and Electrical Power Applications Vol. 4 No. 1 (2024): JEEPA Volume 4 Nomor 1
Publisher : Program Studi Teknik Elektro Universitas Peradaban

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Abstract

The library holds the meaning as a place where various information is disseminated, whether printed or recorded in various media such as books, magazines, computers, and others. The library is a public place that provides information that can be visited by anyone, both children and adults are allowed to visit the library. Not apart from library visitors consisting of children to adults, it is not uncommon for disorder to occur inside the library, one of which is noise that can disturb the tranquility inside the library. Unexpected or unwanted noise because it does not match the library context can cause discomfort and disturbance to library visitors. Therefore, based on the considerations above, researchers try to propose research entitled "Design of Noise Detection Device with Sound Sensor Mic in the Library Based on Arduino". The system used utilizes the Arduino UNO microcontroller equipped with DF Player and other supporting devices so that in practice this tool can provide warnings when noise reaches a certain level in order to maintain noise below the predetermined threshold. The result of this research is that this system can operate by detecting the noise level with the KY307 mic sensor then using the Arduino microcontroller to analyze and process sound data to produce information about the noise level. This data is then displayed on the LCD screen and connected to an audio tweeter to provide a warning if the noise level exceeds the threshold.
Analisis Methane Gas Detector dengan Sensor Catalytic dan Sensor Infrared di Maintenance Area II PT Kilang Pertamina Internasional RU IV Cilacap Nuur Darmawan, Isra'; Kholistianingsih; Noor Fatah, Akbar; Yulianto, Priyono; Adhi Pramono, Susatyo
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 8 No. 1 (2023): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v8i1.726

Abstract

Methane gas detector adalah seperangkat alat instrumentasi yang dapat mendeteksi gas methane di industri lingkungan kerja. Gas methane merupakan rumus kimia CH4, hidrokarbon yang mengandung satu atom karbon (C) dan empat atom hydrogen (H) satuan ukur gas methane adalah % LEL. Gas methane merupakan zat reaktif sehingga mudah meledak jika bereaksi dengan api. Apabila terjadi kebocoran di area kilang dan gas methane tidak terdeteksi akan menimbulkan masalah explosive atau ledakan dan bahaya bagi manusia akan timbul gejala seperti sesak napas karena efek kekurangan oxygen (asphyxia). Adapun beberapa sensor yang digunakan sebagai methane gas detector di maintenance area II yaitu sensor catalytic dan sensor infrared. Ada perbedaan dari Sensor catalytic dan sensor infrared dari segi respon time dan Segi keandalan alat. Respon time dari sensor infrared pada saat menangkap gas yang masuk ke sensor yaitu dengan jumlah nilai waktu rata-rata 1,075 detik. Nilai tersebut lebih cepat dibandingkan dengan sensor catalytic yang membutuhkan yaitu jumlah nilai rata-rata waktu 8,2 detik dan dari segi keandalan alat, sensor infrared lebih tinggi dengan nilai 1, dibandingkan dengan sensor catalytic yang mempunyai keandalan 0,60653. Sensor infrared mempunyai keunggulan mendeteksi gas selain gas metahane seperti prophane, ethane, ethylene dan butane. Keunggulan lain yaitu mampu mengadaptasi dengan temperatur tinggi dibandingkan sensor catalytic dengan temperatur rendah.
Comparative Analysis of Carbon-Neutral District Heating Solutions Incorporating Waste Heat Recovery and Geothermal Exchange in Tropical Urban Settings Rahardian Luthfi Prasetyo; Isra' Nuur Darmawan; Kholistianingsih
Green Engineering: International Journal of Engineering and Applied Science Vol. 2 No. 1 (2025): January: Green Engineering: International Journal of Engineering and Applied Sc
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70062/greenengineering.v2i1.258

Abstract

This research investigates the potential of integrating waste heat recovery and geothermal exchange within district heating systems as a carbon-neutral energy solution tailored to tropical urban settings. Tropical climates present unique challenges for heating, ventilation, and air conditioning (HVAC) systems, including high humidity, temperature fluctuations, and increasing energy demands, particularly for cooling. This study aims to address these challenges by proposing a hybrid district heating system that combines renewable energy sources to improve energy efficiency and reduce carbon emissions. The methodology includes thermal and hydraulic modeling, performance simulation of the hybrid system under tropical climate conditions, and emission and energy efficiency analysis. The results indicate that the hybrid system significantly reduces energy consumption and carbon emissions compared to traditional heating systems, with waste heat recovery optimizing energy use and geothermal exchange enhancing system efficiency. The comparison with conventional systems and other environmentally friendly alternatives reveals that the hybrid system offers a cost-effective, sustainable solution for tropical urban areas. The study concludes that integrating waste heat recovery and geothermal exchange is feasible and can contribute to the creation of carbon-neutral cities. Future research should focus on optimizing geothermal systems in tropical climates and exploring further integration with other renewable energy sources to enhance system performance and sustainability.
THE EFFECT OF LOADING ON THE POWER CAPACITY OF A 1-PHASE 50 KVA DISTRIBUTION TRANSFORMER Azis Mustofa, Denny; Darmawan, Isra' Nuur; Kholistianingsih
Journal of Electronic and Electrical Power Applications Vol. 5 No. 2 (2025): JEEPA Volume 5 Nomor 2
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58436/jeepa.v5i2.2480

Abstract

The Effect Of Loading On The Power Capacity Of A 1-Phase 50 Kva Distribution Transformer. The 50 kVA distribution transformer at the SNT04-109 substation plays an important role in distributing electrical energy to customers. However, increasing loads can accelerate the decline in transformer performance and lifespan. This study aims to analyze the effect of loading on transformer power capacity using a descriptive quantitative approach based on load current data from 2019 to 2023. The results show that the average nighttime load current increased from 96 A in 2019 to 131 A in 2023. Based on calculations, the actual power carried has reached 28.9 kVA or 72.2% of the maximum capacity. With an annual load growth trend of around 8.7%, it is estimated that transformers will experience overloading in the coming years. If load management or uprating is not carried out, the risk of damage and decreased operational efficiency will increase. Therefore, routine monitoring and capacity planning are essential to maintain the reliability of electricity distribution.
THE EFFECT OF LOADING ON THE LIFETIME OF A 50 KV DISTRIBUTION TRANSFORMER ON THE LMS01 FEEDER IN TAMBAKREJA VILLAGE, ULP CILACAP CITY Biandi Bagas Saputra, Wim; Kholistianingsih; Darmawan, Isra' Nuur; Dharma Sukowati, Irawan
Journal of Electronic and Electrical Power Applications Vol. 5 No. 2 (2025): JEEPA Volume 5 Nomor 2
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58436/jeepa.v5i2.2481

Abstract

This Study Aims To Analyze The Effect Of Loading On The Life-Time Of A 50 Kv Distribution Transformer at Penyulang LMS01, Tambakreja Village, ULP Cilacap Kota. Distribution transformers are critical components in power systems, and overloading can accelerate performance degradation and reduce their lifespan. The research method involves measuring current, voltage, and load power of a B&D transformer from 2019 to 2023. The analysis reveals that excessive loading, especially during nighttime, reduces the transformer's lifespan by 8 years and 9 months from the standard 20 years, with an error value of 44,25%. The remaining lifespan is estimated at only 11 years and 3 months. This study recommends regular monitoring and limiting loads to below 80% capacity to extend the transformer's operational life.
Co-Authors Azis Mustofa, Denny Biandi Bagas Saputra, Wim DARMAWAN, ISRA' NUUR Dharma Sukowati, Irawan Dody Wahjudi Isra' Nuur Darmawan Noor Fatah, Akbar Nuur Darmawan, Isra' Priyono Yulianto, Priyono Rahardian Luthfi Prasetyo Rifadila Fahmi, Ananda Septia Nugroho, Rudi Susatyo Adhi Pramono, Susatyo Adhi