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PERANCANGAN MESIN PENCETAK PUTU MAYONG MENGGUNAKAN TUAS PENEKAN Nurdiana, Nurdiana; Sutrisno, Franky; Suharlan, Didy
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 4 No 2 (2018): November 2018
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (324.338 KB)

Abstract

Putu Mayong is a traditional Indian food which has received a warm welcome from some nations, especially in Asia, among others in South India, Sri Lanka, Malaysia, Singapore and Indonesia and is known as a snack. The process of making putu mayung is by mixing rice flour with water or coconut milk and pressing the dough through a mold to produce a noodle-like form and then steamed it. . One mold container that is commonly used can produce 15 pieces of putu mayung and every 1 kg of dough produces 70 putu mayung. Every 1 hour can spend 5 kg of dough to be putu mayung. Producers of putu mayung used to produce 2000 pieces within 6 hours by spending 30 kg of dough, the work of printing this putu mayong if done every day could make putu mayong producers experience fatigue. From the design results, the printer drum is used with a diameter of 50 cm, the drum height of the printer is 25 cm, with a number of prints of 25 pieces, the size of the mold cover is the same as the size of the diameter in the printing tube. Turntable where the baking tray is printed by putu mayong rotates at 20 rpm and 100 watts of drive. The print height from the bottom frame to the pressure lever reaches 130 cm. The pressure lever length is 70 cm.
PREPARASI DAN MODIFIKASI SIFAT ADHESI PERMUKAAN METAL FOAM UNTUK MENINGKATKAN KARAKTERISTIK ADHESI Humaidi, Syahrul; Suharlan, Didy
JURNAL REKAYASA ENERGI Vol. 3 No. 1 (2024): Jurnal Rekayasa Energi
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jre.v3i1.49

Abstract

Permukaan metal foam telah berhasil dimodifikasi sehingga mendapatkan permukaan dengan sifat adhesi yang tinggi dengan sudut kontak sebesar 112° pada hari pertama pengamatan. Modifikasi permukaan metal foam dilakukan melalui prosedur pembersihan dan teknik penyemprotan sederhana menggunakan Super Nano hydrophobic Liquid Repellent. Tujuan utama dari penelitian ini adalah untuk mengeksplorasi pengaruh lapisan hidrofobik pada permukaan metal foam terhadap karakteristik kapilaritas yang dimiliki. Metal foam yang dilapisi dengan lapisan hidrofobik menyerap 0,03 gr air dalam 10 detik pertama, kondisi ini berlanjut untuk 50 detik berikutnya dan setelah 90 detik, pemompaan kapiler mencapai titik saturasi di mana jumlah air yang telah mengisi celah kapiler tidak dapat bergerak lagi karena jumlahnya telah mencapai maksimum. Dari penelitian ini juga diproleh kesimpulan bahwa semakin kecil sudut kontak metal foam, maka semakin meningkatkan tekanan kapilernya.
IMPLEMENTASI IC TIMER 555 PADA SISTEM ELEKTRONIKA DASAR UNTUK APLIKASI KENDALI, INDIKATOR, DAN KEAMANAN Bonardo, Doli; Harahap, Basyaruddin Ismail; Suharlan, Didy; Harahap, Rahmat Kholis
JURNAL REKAYASA ENERGI Vol. 4 No. 1 (2025): Jurnal Rekayasa Energi
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jre.v4i1.84

Abstract

Within the context of energy-efficient automation, simple electronic control systems remain an essential research area for practical yet low-cost solutions. This study aims to evaluate the functional performance of two circuit prototypes based on the IC Timer 555 a Laser-LDR Security Alarm and a Blinking Turn-Signal Light to address the need for reliable automation in energy engineering applications. The methodology follows a structured three-step approach: (1) circuit simulation using tools such as Multisim or Proteus, (2) physical realization via PCB design and assembly, and (3) functional testing to verify performance metrics of each prototype. Results demonstrate that the security alarm effectively detects laser beam interruption via the LDR in a monostable (latch) configuration, while the turn-signal circuit reliably generates periodic LED blinking using the astable mode. Together, these prototypical systems illustrate how simple timing control circuits using IC 555 can deliver versatile, cost-effective automation suitable for practical applications in energy engineering.