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All Journal PROSIDING SEMINAR NASIONAL MEDIA ELEKTRIKA Jurnal Karya Pendidikan Matematika JITEK (Jurnal Ilmiah Teknosains) Media Keperawatan Indonesia To Maega: Jurnal Pengabdian Masyarakat Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Riwayat: Educational Journal of History and Humanities
Achmad Solichan
Universitas Muhammadiyah Semarang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Health Professions Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Rancang Bangun Solar Power Meter berbasis Arduino Uno dengan Data Logger untuk Pengukuran Insolasi dan Iradiasi Sinar Matahari Aris Kiswanto; Hanif Caesar Rachmad; Achmad Solichan; Arief Hendra Saptadi; Dina Mariani; Moh Toni Prasetyo
Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vol 4, No 1 (2022): February
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v4i1.1192

Abstract

In  planning  the  installation  of  solar  panels  at  a  location,  it  is  necessary  to  have  solar irradiance data at that location.  Solar  irradiance  data  is  obtained  through  direct measurements using a solar irradiance meter. Solar irradiance measuring  instruments  usually  use  one  of  three  types  of sensors,  including  thermopile  (pyranometer),  solar  cells,  or photodiodes.  Each  has  advantages  and  disadvantages.  The advantages of solar cell sensors are that they have a faster response to sunlight, are more in line with the production of energy produced by solar panels and have a more economical price compared to other sensors. Solar irradiance is directly proportional to the short-circuit current of the solar cell. The aim of this research is to design an Arduino Uno-based device to measure the insolation and irradiance of sunlight, equipped with a data logger to support data analysis. The solar power meter is designed using a solar cell reference with a short circuit current of 455 mA. The microcontroller board used is Arduino UNO ATmega328 while the current sensor used is WCS2801 with a sensitivity of 2mA/mV. Irradiation, current  and  insolation  data  are  recorded  and  stored  every minute using a datalogger to SD card with a capacity of 16 GB. the  average  of  %  error  when  testing  the  comparison  of readings with photodiode-based solar power meter is 1.747%. The highest point of sun insolation is 5.56.kWh/m2 during three-day period of data logging and it is achieved when solar cell is positioned horizontally on the terrace. 
Implementasi Teknologi Tepat Guna untuk Peningkatan Kualitas Olahan Jamur pada Usaha Jamur Tiram Dwi Sulistyaningsih; Achmad Solichan; R. Ery Wibowo Agung
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.741 KB)

Abstract

Oyster mushroom farmer group REJOSARI MAKMUR and MANDIRI are two mushroom business groups in Meteseh village which was formed in response to the decline of the indigenous economy. They process mushrooms into chips sold in traditional markets. Their problems are low production capacity, low product diversification, oil content in chips is still high, and product packaging is not carried out properly. The objectives are (1) to develop business partners' mushroom so that they are able to become economically independent communities, (2) improve creative and innovative skills, use appropriate technology skills in draining, packaging, storage and product marketing skills. The method of achieving the goal is to increase production capacity through baglog enhancement, improve the skills and creativity of making various processed mushroom foods, applying oil slicing machines, and developing methods for packaging mushroom food products using packaging machines and labeling on product packaging. The results showed that the durability of chips for not sluggish and rancid increased from 4 days to 16 days. Mushroom entrepreneurs have been able to make various processed mushroom foods from 1  (chips)  into  several  products  including  nuged  and  mushroom  meatballs. Packaging becomes better, attractive and tight so that the flavor increases and food resistant.Keywords: Oyster mushroom, capacity, packaging, product diversification
UPAYA PENINGKATAN KOMPETENSI MAHASISWA MELALUI PEMBELAJARAN BERKARAKTER DENGAN PENDEKATAN INQUIRY BERBANTUAN CABRI 3D PADA GEOMETRI RUANG Venissa Dian Mawarsari; Achmad Solichan
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2015: Prosiding Bidang Pendidikan,Humaniora dan Agama The 2nd University Research Colloquium
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1024.612 KB)

Abstract

The purpose of this research is to improve student’s competency (student’s learning achievement) using character-based lesson plan with inquiry approach with Cabri 3D on space geometry subject. The research is a quantitative eperiment by comparing the process before and after the use of the lesson plan. Test, observation, and documentation ware used in the research to support the result. It showed the average pre test result 31,94 and for post test was 85,17. Based on the statistical analysis using paired sample t test, t counted 25,18 and indicated significant improve on the student’s competency. However, the application of character-based lesson plan with inquiry approach with Cabri 3D give significant improvement on space geometry subject.Keywords: character-based lesson plan, inquiry, cabri 3D.
ALAT UKUR TINGGI DAN MASSA BADAN OTOMATIS BERBASIS MIKROKONTROLLER ATMEGA 8535 Shokhibul Kahfi; Achmad Solichan; Aris Kiswanto
MEDIA ELEKTRIKA Vol 8, No 2 (2015): MEDIA ELEKTRIKA
Publisher : PSTE UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (544.051 KB) | DOI: 10.26714/me.8.2.2015.%p

Abstract

ABSTRACT This combination; Automatic mass and high measurement device based on microcontroller ATMega 8535, is a combination which can measure for high and mass digitally. This combination consist of some blocks, power supply 5V and there are 2 censors; ultrasonic and optocoupler which is an input of this device, and microcontroller ATMega 8535 is as a program controller and LCD is as presenter. Censor ultrasonic HSCR-04 will detect things surrounding censor, censor radiator will send ultrasonic phase. If ultrasonic phase bounches back to the receiver, it means there is an object surroundings censor and optocoupler censor will count the hole in analog weights. Then, the second result is sent to microcontroller to be calculated to LCD to be shown. Keywords : Keywords: ultrasonic censor, optocoupler, Microcontroller ATMega 8535, LCD
SIMULASI PELEPASAN BEBAN DENGAN RELAYFREQUENCY PADA SISTEM TENAGA LISTRIK CNOOC SES Ltd.NORTH BUSINESS UNIT MENGGUNAKAN SOFTWARE ETAP 7.5 Syarif Mahmud; M. Toni Prasetyo; Achmad Solichan
MEDIA ELEKTRIKA Vol 7, No 1 (2014): MEDIA ELEKTRIKA
Publisher : PSTE UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.693 KB) | DOI: 10.26714/me.7.1.2014.%p

Abstract

Adanya gangguan pada sistem tenaga listrik dapat memicu ketidakstabilan frekuensi sistem. Tugas Akhir ini membahas tentang skema pelepasan beban menggunakan rele frekuensi pada sistem tenaga listrik CNOOC SES Ltd. North Business Unit yang mempunyai pembangkit listrik tenaga gas. Metode yang digunakan untuk simulasi transien analisis adalah perangkat lunak ETAP 7.5. Pelepasan beban dapat memulihkan frekuensi dengan cepat dan jumlah beban yang dilepaskan seminimal mungkin. Oleh sebab itu diperlukan seting waktu tunda rele, frekuensi kerja dan besar beban yang dilepaskan. Dari simulasi menggunakan rele frekuensi dapat mencegah penurunan frekuensi dan mengembalikan ke kondisi normal. Kata kunci:ETAP 7.5, Pelepasan Beban, Pembangkit Listrik Tenaga Gas, Rele Frekuensi
PEREKAMAN DATA SENSOR KE GOOGLE SHEETS MENGGUNAKAN SISTEM MIKROPENGENDALI ATMEGA16A DAN APLIKASI SERVER Arief Hendra Saptadi; Achmad Solichan
MEDIA ELEKTRIKA Vol 9, No 2 (2016): MEDIA ELEKTRIKA
Publisher : PSTE UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (572.689 KB) | DOI: 10.26714/me.9.2.2016.%p

Abstract

There are various occasions where data taken from field measurements need to be stored remotely, but yet accessible from many places and by any means. The emergence of online data storage for documents such as Google Docs had made it possible to build a system that acquires data from sensors and stores them as an online document accessible anywhere. The purpose of this research is to develop a system prototype to store and display data from the result of measurements toGoogle Sheets through the use of ATmega16A microcontroller system and a server application. The proposed system consists of a data acquisition unit, a PC that acts as a server and web services. The data acquisition unit is made up from an ATmega16A microcontroller, LM35 astemperature sensor, photoresistor for light intensity measurement and FT232RL module for serial communication. Application server that runs on a PC is written in Processing programming language.The web services being used are Temboo and Google Sheets. From the test results it can be concluded that data acquisition unit had been able to transmit data to PC via serial communication, the server application was successfully built in terms of interface design and functionalities and a table in Google Sheets had been capable to store measurement results and display them correctly. In order to deliver a sense of real-time measurement, it is advisable to add a real-time clock chip module to microcontroller system such that the momentthe data arrive from sensors is recorded. The server application can be improved by the addition of local data logging feature to anticipate the loss of data caused by disturbances during onlinetransmission. Keywords: Data Logging, Sensors, Google Sheets, ATmega16A, Server Application
OPTIMASI JADWAL OPERASI DAN PEMELIHARAAN PEMBANGKIT TENAGA LISTRIK MENGGUNAKAN METODE ALGORITMA GENETIKA Achmad Solichan; Moh Toni Prasetyo
MEDIA ELEKTRIKA Vol 6, No 2 (2013): MEDIA ELEKTRIKA
Publisher : PSTE UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.867 KB) | DOI: 10.26714/me.6.2.2013.%p

Abstract

Kemajuan teknologi dan konsumsienergi listrik yang meningkat dengan cepat menuntut adanya peningkatan kualitas keandalan sistem tenaga listrik. Untuk mendapat kuantitas daya sistem diperlukan pengoperasian unit pembangkit sebanyak mungkin sedangkan untuk mendapat kualitas daya sistem diperlukan pemeliharaan unit pembangkit sebaik mungkin. Jadwal operasi dan pemeliharaan pembangkit yang tepat menghasilkan keandalan sistem yang optimal antara kuantitas dan kualitas. Kendala yang dihadapi yaitu kesulitan untuk mendapatkan jadwal yang paling tepat karena pengaturan jadwal dilakukan secara manual. Masalah penjadwalan bersifat kombinatorial dan probabilistik sangat tepat diselesaikan dengan sistem optimasi menggunakan kecerdasan buatan algoritma genetika. Penelitian ini bertujuan membuat rancang bangun sistem optimasi penjadwalan operasi dan pemeliharaan unit pembangkit tenaga listrik. Metode optimasi yang digunakan yaitu algoritma genetika dan fungsi objektif berupa LOLE minimal, operator yang dipakai yaitu crossover (0,6), mutasi (0,001) dan elitisme (1). Hasil penelitian menunjukkan metode algoritma genetika dapat menyelesaikan masalah optimasi penjadwalan pemeliharaan dan operasi sistem tenaga listrik.
ANALISIS DAN SIMULASI DESAIN PENAMBAHAN PENYULANG PADA GARDU INDUK KEBASEN – TEGAL Ni Putu Pramanasari; Achmad Solichan; Luqman Assaffat
MEDIA ELEKTRIKA Vol 14, No 1 (2021): Media Elektrika
Publisher : PSTE UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (620.328 KB) | DOI: 10.26714/me.14.1.2021.53-61

Abstract

Pusat pembangkit yang terlalu jauh dari beban menyebabkan kerugian pada saat penyaluran energi listrik. Seperti yang terjadi pada penyulang KSN11 dan penyulang KSN12 pada Gardu Induk Kebasen yang mengalami drop tegangan dan rugi daya ketika penyaluran energi menuju konsumen. Nilai tegangan ujung pada penyulang KSN11 adalah sebesar 18,60 kV dengan persentase beban 51% dan nilai tegangan ujung pada penyulang KSN12 adalah sebesar 17,75 kV dengan persentase beban 60%. Metode penelitian ini menggunakan simulasi ETAP 12.6 dengan melakukan pemecahan beban.  Hasil penelitian ini menunjukan bahwa nilai persentase drop tegangan untuk Penyulang KSN11 mengalami penurunan sebesar 1,62 %, untuk penyulang KSN12 mengalami penurunan sebesar 4,12% sedangkan untuk penyulang KSN20 mengalami kenaikan sebesar 3,08%.  Dan untuk nilai rugi rugi daya total juga mengalami penurunan sebesar 564,84 kW untuk penyulang KSN11, penyulang KSN12, dan penyulang KSN20.
MICROCONTROLLER ATMEGA8535 SEBAGAI BASIS PENGENDALI KECEPATAN MOTOR INDUKSI SATU FASA Heri Suryo; Achmad Solichan
MEDIA ELEKTRIKA Vol 8, No 1 (2015): MEDIA ELEKTRIKA
Publisher : PSTE UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.181 KB) | DOI: 10.26714/me.8.1.2015.%p

Abstract

Pada umumnya motor induksi berputar dengan kecepatan konstan dengan tegangan penuh. Pada kebutuhan tertentu kecepatan motor induksi perlu diatur kecepatan putarannya. Dalam tugas akhir ini, saya menggunakan mikrokontrol ATMega8535 sebagai inti proses dan menggunakan bahasa basic dalam pemrograman. Pada bagian pendukung ada driver SSR (Solid State Relay) dan bagian rangkaian counter RPM untuk menghitung banyaknya putaran pada suatu rentang waktu tertentu dengan inti menggunakan LM358, photodiode dan LED putih yang kemudian dimunculkan di LCD. Dari berbagai percobaan, motor induksi ketika diberi tegangan penuh 220V maka motor berputar dengan maksimal dan konstan, namun ketika dihubungkan mikro maka terjadi kecepatan yang tidak stabil karena singal keluaran mikro mencacah tegangan dan juga jika dilihat dari oscilloscope terjadi gelombang loncatan singal, ketika diberi kapasitor yang terjadi motor induksi bisa lebih stabil dan mengurangi loncatan gelombang. Semakin tinggi kecepatan maka semakin besar daya yang dipakai. Pada kecepatan rendah motor induksi AC tidak bisa berjalan stabil.Kata Kunci : ATMega8535, Motor Induksi Satu Phasa, solid state relay, rangkaian counter rpm
EFESIENSI MUSICOOL-22 DENGAN PROSES RETROFIT PADA AC MEREK DAIKIN 3 PK DI UNIT REKTORAT UNIMUS Khoeri -; Achmad Solichan; Samsudi Raharjo
MEDIA ELEKTRIKA Vol 10, No 1 (2017): MEDIA ELEKTRIKA
Publisher : PSTE UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (341.948 KB) | DOI: 10.26714/me.10.1.2017.%p

Abstract

Mechanical air conditioning to regulate the temperature , circulation , humidity and cleanliness of the air inside the room . Air conditioning (Air Conditioner) maintaining the condition of the air inside so that the occupants of the room to be comfortable . The purpose of this study was to compare the efficiency of the use of refrigerant R - 410A and MC - 22 at the brand split air conditioners Daikin 2 PK with retrofit methods . The results obtained during the test indicates the use of refrigerants MUSIcool-22 more efficient 19.51 % compared with the use of refrigerant R - 410 Aand Performance temperatures MUSIcool-22  colder  0,50C of Performance temperature refrigerant R - 410A. Keywords: Air Conditioning, R-410A, MUSIcool-22, Retrofit, Temperature
Co-Authors Apondala Apondala Arief Hendra Saptadi Arief Hendra Saptadi Aris Kiswanto Dina Mariani Dini Cahyandari Dwi Sulistyaningsih Fitri Nuroini Hanif Caesar Rachmad Hanityo Adi Nugroho Heri Suryo Ilham Yustar Afif Indri Astuti Purwanti Khoeri - Luqman Assaffat M. Toni Prasetyo Moh. Sabiqul Faiz Ni Putu Pramanasari Purnomo . R. Ery Wibowo Agung Rohmalia Shoffi Salsabila Rohmatul Fitri Ummumah Rokhani Rokhani* Samsudi Raharjo Shokhibul Kahfi Slamet Saefudin SRI REJEKI Syarif Mahmud Venissa Dian Mawarsari