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All Journal Jurnal Rekayasa Mesin Eksergi: Jurnal Teknik Energi
Budhi Prasetyo
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Chemical Engineering, Chemistry & Bioengineering Electrical & Electronics Engineering Energy Engineering Mechanical Engineering

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RANCANG BANGUN PROTOTYPE PEMBANGKIT TURBIN ANGIN SKALA MIKRO TIPE HORIZONTAL DOUBLE MULTIFLAT BLADE DENGAN VARIASI JUMLAH SUDU Sahid Sahid; Budhi Prasetyo; Ulya M.S; Yoga E.H.; Afrida H. R; Muhammad A.S.
Eksergi Vol 16, No 2 (2020): MEI 2020
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (626.355 KB) | DOI: 10.32497/eksergi.v16i2.2207

Abstract

Kelebihan dari turbin angin poros horizontal yaitu efisiensinya lebih tinggi dibanding turbin angin poros vertikal karena sudu selalu bergerak lurus terhadap arah angin dan menerima daya sepanjang putaran. Tujuan dari tugas akhir ini dibuat untuk mengembangkan tugas akhir tahun 2018 dengan memvariasikan jumlah sudu yaitu 9, 12, dan 15 dan membandingkan kinerja turbin angin dengan menggunakan variasi kecepatan angin. Metode yang digunakan yaitu dengan melakukan tahap penelitian berupa merancang, membuat, dan merakit turbin angin. Turbin angin memiliki dimensi panjang sudu sebesar 650 mm, lebar sisi masuk 60 mm, dan lebar sisi keluar 80 mm. Sedangkan hub memiliki diameter 68,8 mm dan tinggi kerangka 1,5 m. Variabel penelitian meliputi variasi jumlah sudu yaitu 9 buah, 12 buah, dan 15 buah. Data dari hasil pengujian ini kemudian dibuat tabel dan dibandingkan dengan menganalisa grafik karakteristik putaran dan efisiensi. Tahap akhir dari pengujian ini yaitu untuk mendapatkan efisiensi sistem terbaik dengan variabel yang digunakan. Nilai efisiensi pada sudu 9 yaitu sebesar 1,41% pada kecepatan angin 5,15 m/s, pada sudu 12 yaitu sebesar 2,59% pada kecepatan angin 5,58 m/s, dan pada sudu 15 yaitu sebesar 2,68% pada kecepatan angin 5,7 m/s
Analisa Efek Otomatisasi Proses terhadap Kapasitas Produksi dengan Studi Kasus Mesin Selotip Semi Otomatis di Industri Pengemasan Putri, Farika Tono; Luthfiansyah, Galih; Indrawati, Ragil Tri; Prasetyo, Budhi; Priyoatmojo, Slamet
Jurnal Rekayasa Mesin Vol 16, No 2 (2021): Volume 16, Nomor 2, Agustus 2021
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v16i2.2865

Abstract

Industri kosmetik adalah industry yang bertumbuh dengan sangat pesat. Tumbuhnya industry kosmetik tersebut menjadikan industry lain yang berhubungan dengan kosmetik turut berkembang. Slah satunya yaitu industry pengemsan. Proses penempelan selotip pada layer karton yang masih manual dikerjakan oleh operator dengan alat potong berupa cutter mengakibatkan seuah industry tidak mampu memenuhi demand konsumen. Pada penelitian ini diekmbangkan sebuah mesin selotip semi otomatis dengan harga yang murah dna mudah dioperasikan. Tujuan dari penelitian ini adalah meningkatkan kapasistas produksi melalui penggantian metode produksi dari konvensional ke semi otomatis. Hasil penelitian menunjukkan efektifitas cycle time sebesar 72% dengan mesin selotip semi otomatis. Kapasitas produksi pun naik 118%.
Analysis of Solar Cell Utilization as an Automated Pump Driver in a Fishpond Suwarti, Suwarti; DH, Yusuf; Prasetyo, Budhi; Margana, Margana; Hamim Su'udy, Ahmad; W, Wiwik Purwati; Supriyo, Supriyo
Eksergi Vol. 18 No. 2 (2022): MAY 2022
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (875.774 KB) | DOI: 10.32497/eksergi.v18i2.3583

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%
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%.  
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%.
Co-Authors A B Susanto Afrida H. R Ahmad Hamim Su’udy Aulia, Nur Fatowil DH, Yusuf Dwiana Hendrawati H, Yusuf Dewantoro Hamim Su'udy, Ahmad Haryono Semangun Haryono Semangun Hermawan, Baktiyar Mei Indrawati, Ragil Tri Iqna Kamila Abfa Loretha Natalia Samber Luthfiansyah, Galih Margana Margana Martanto Martosupono Martanto Martosupono Muhammad A.S. Putri, Farika Tono Rinto Herry Mambrasar Sahid Sahid Slamet Priyoatmojo, Slamet Supriyo Supriyo Suwarti Suwarti Ulya M.S W, wiwik Purwati Wahyono Wahyono Yoga E.H.