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All Journal Wahana Teknik J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Indonesian Journal of Multidisciplinary on Social and Technology Teknik: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Putri Sundari
Universitas Gresik
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Perencanaan Belt Conveyor System Sebagai Alat Angkut Box dengan Kapasitas 20 Ton/Jam Putri Sundari; Wardjito; Sa’ad Bayu Hariyono
Wahana Teknik Vol 9 No 1 (2020): Wahana Teknik
Publisher : Wahana Teknik

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

Abstract

The study aimed to design belt conveyor system for box transportation with capacity 20 Ton/hours with the horizontal line distance 20 m. This study located in PT. Intan Ustrix, Jl. Roomo No. 425 Manyar, Gresik, Jawa Timur. The results of calculation showed that belt conveyor needs specifications: rubber width 650 mm, speed of belt converter 1 m/s, driver motor power 0,699 kW, and installed motor power 2,2 kW. Head (drive) pulley diameter 500 mm, shaft diameter 125 mm, tail pulley diameter and take-up pulley 400 mm, bend pulley and snub up pulley diameter is 250 mm. Specification of rubber belt conveyor is fabric type and general (M) 1.200 mm, EP 630/4 Ply. Specification of electrical motor are 2,2 kW, 380 V, 3 Phase, 50 Hz, 4 Poles, Speed 1500 rpm, with gear box specification (reducer) is bofiglioli VF 72, with ratio 1:40. Keywords: Belt Conveyor, Box Transportation, Design.
Pengaruh Jumlah Plug pada High Pressure Heater (HPH ) sebagai Pemanas Awal Air Umpan Boiler PLTU PT X Putri Sundari; Meryana linda; Beni Kesuma Sigiro
J-Proteksion Vol 6, No 2 (2022): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v6i2.6675

Abstract

High Pressure Heater (HPH) merupakan suatu komponen penukar panas dengan tipe shell and tube yang digunakan untuk memanaskan feed water sebelum masuk ke boiler sehingga mengurangi waktu perebusan saat di boiler. Penelitian ini dilakukan di salah satu PLTU di PT X, yang mana peralatan HPH mengalami kebocoran tube sehingga mempengaruhi proses heat transfer dan mempengaruhi efisiensinya. Salah satu metode pemeliharaan saat terjadinya kebocoran tube yaitu pemberian plug sehingga fluida air umpan yang melewati tube tidak bercampur dengan uap ekstraksi turbin. Penelitian ini bertujuan untuk mengetahui batas jumlah plug maksimal yang diizinkan pada HPH sampai HPH dinilai tidak efisien lagi dan perlu dilakukan retubing. Metode pengambilan data dilakukan dengan observasi di lapangan serta wawancara kepada bidang perencanaan dan pengendalian operasi serta central control room (CCR) di PLTU Unit 4, didukung studi kepustakaan untuk melengkapi parameter atau data untuk mendukung hasil penelitian. Tahap awal penelitian ini dilakukan perhitungan besar perpindahan panas pada komponen HPH dengan rumus log mean temperature difference (LMTD) dan hasilnya menunjukkan bahwa besar perpindahan panas maksimum antara uap ekstraksi turbin dengan feed water sebesar 52,72 MW dan perpindahan panas minimumnya sebesar 10,23 MW. Penelitian ini juga melakukan analisis tentang batas jumlah plug maksimal yang diizinkan pada HPH sampai tube HPH tersebut tidak efisien lagi dan perlu dilakukan retubing. Berdasarkan hasil perhitungan, jumlah plug maksimal yang diizinkan yaitu sebesar 60 plug dengan besar heat transfer 9,14 MW atau ± 10% dari desain peralatan atau aktual operasi yang diizinkan.
Analisis Kinerja Kompresor AC Split ½ PK Menggunakan Refrigerant R32 Dan R22 Pada AC Non-Inverter Dengan Variasi Putaran Fan Pada Evaporator Lukman Hulakim; Lisa Puspita Ariyanto; Putri Sundari
Indonesian Journal of Multidisciplinary on Social and Technology Vol. 4 No. 3 (2026): Juli - Oktober
Publisher : PT Ilmu Data Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69693/ijmst.v4i3.12991

Abstract

Penelitian ini bertujuan untuk menganalisis kinerja kompresor pada sistem pengkondisian udara (air conditioning) tipe split berkapasitas ½ PK non-inverter. Evaluasi dilakukan secara komparatif dengan membandingkan penggunaan dua jenis refrigeran, yaitu R32 dan R22, serta menerapkan variasi kecepatan putaran fan evaporator. Fokus penelitian diarahkan pada empat parameter utama, meliputi tekanan hisap kompresor, suhu kondensor, suhu evaporator, dan tingkat konsumsi daya listrik kompresor. Metodologi penelitian bersifat eksperimental kuantitatif melalui pengukuran langsung pada sistem uji. Pengambilan data operasional dilakukan menggunakan instrumen pengukuran presisi, yaitu manifold gauge untuk mengukur tekanan sistem, termokopel untuk mengukur distribusi suhu, serta tang ampere (clamp meter) untuk mengukur konsumsi daya listrik. Hasil analisis menunjukkan bahwa jenis refrigeran dan variasi putaran fan evaporator berpengaruh secara signifikan terhadap performa kompresor. Penggunaan refrigeran R32 menghasilkan transfer panas yang lebih optimal serta efisiensi kerja kompresor yang lebih baik dibandingkan R22 pada berbagai tingkat kecepatan fan. Selain itu, peningkatan kecepatan putaran fan evaporator terbukti mampu menurunkan suhu evaporator dan menjaga stabilitas tekanan hisap kompresor. Secara keseluruhan, penelitian ini memberikan kontribusi ilmiah serta acuan teknis mengenai optimalisasi efisiensi energi dan penerapan refrigeran yang lebih ramah lingkungan pada sistem pendingin skala rumah tangga.
Analisis Pengaruh Ketinggian Isap terhadap Performa Hidraulik Pompa Shimizu PS-130 BIT Sutrisno Sutrisno; Lisa Puspita Ariyanto; Putri Sundari
Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 6 No. 2 (2026): Juli : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/teknik.v6i2.12409

Abstract

Water pumps are widely used to meet household clean water demands. One of the factors affecting pump performance is suction height, as it influences flow capacity, head, efficiency, and the potential occurrence of cavitation. This study aimed to analyze the effect of suction height on the performance of the Shimizu PS-130 BIT pump in terms of flow capacity, total head, pump efficiency, and cavitation tendency. The research was conducted using a quantitative experimental method. The suction height variations applied were 2 m, 4 m, and 6 m. Testing was carried out by measuring flow rate, suction pressure, discharge pressure, and calculating head losses and pump efficiency for each suction height variation. The experimental data were then analyzed to determine the performance characteristics of the pump under different operating conditions.The results showed that increasing suction height led to a decrease in pump flow capacity from 0.000325 m³/s at a suction height of 2 m to 0.000300 m³/s at a suction height of 6 m. The total head increased from 2.50 m at a suction height of 2 m to 6.27 m at a suction height of 6 m. Pump efficiency decreased with increasing suction height, with the highest efficiency of 27% obtained at a suction height of 2 m and the lowest efficiency of 25% at a suction height of 6 m. Increasing suction height also reduced the pressure on the suction side, thereby increasing the tendency for cavitation, which may reduce pump performance. Overall, suction height significantly affected the hydraulic characteristics of the Shimizu PS-130 BIT pump, where lower suction heights resulted in better flow capacity and pump efficiency.
Optimasi Jumlah Sudu dan Sudut Keluar Impeller pada Pompa Sentrifugal Aqua 401 Ahmad Nur Hidayat; Lisa Puspita Ariyanto; Putri Sundari
Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 6 No. 2 (2026): Juli : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/teknik.v6i2.12415

Abstract

Centrifugal pump performance is strongly determined by impeller geometry, yet many small- and medium-scale water pumps such as the Aqua 401 unit operate below their optimum efficiency because impeller design parameters are rarely optimized systematically. This study analyzes the effect of impeller blade count and blade outlet angle on the efficiency and hydraulic performance of the Aqua 401 centrifugal pump using a factorial Design of Experiment (DOE) approach. Two factors were varied: blade count (3, 5, and 7 blades) and outlet angle (25° and 30°), producing six treatment combinations tested experimentally under real operating conditions. Flow rate, head, input power, and efficiency were measured directly, and the results were analyzed using two-way Analysis of Variance (ANOVA) followed by regression modeling. Both blade count and outlet angle significantly affected pump efficiency (p < 0.05), while their interaction was not significant. The five-blade impeller with a 30° outlet angle produced the highest efficiency of 74.8%, an improvement of about 21% over the least efficient configuration. The regression model achieved a coefficient of determination of 0.923, indicating strong predictive accuracy. These findings provide a data-driven, empirically validated basis for optimizing impeller geometry in small-scale centrifugal pumps and support more energy-efficient pump operation.
Co-Authors Ahmad Nur Hidayat Beni Kesuma Sigiro Lisa Puspita Ariyanto Lukman Hulakim Meryana linda Sa’ad Bayu Hariyono Sutrisno Sutrisno Wardjito