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Putu Wijaya Sunu
Politeknik Negeri Bali
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Journal : JAMETECH

 1 
Perbandingan konsumsi bahan bakar pada sistem injeksi dan sistem karburator I Nyoman Suparta; I Made Suarta; I Putu Gede Sopan Rahtika; Putu Wijaya Sunu
Journal of Applied Mechanical Engineering and Green Technology Vol. 2 No. 3 (2021): November 2021
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.044 KB) | DOI: 10.31940/jametech.v2i3.108-113

Abstract

Isu dunia yang paling bayak dibicarakan adalah masalah energi dan kesehatan. Kekhawatiran terhadap pasokan energi telah memotivasi produsen otomotif mencari solusi untuk menghemat penggunaan bahan bakar. Salah satu solusi dikembangkan saat ini adalah mengganti sistim bahan bakar konvensional menjadi injeksi. Pengujian perbandingan kebutuhan bahan bakar antara sepeda motor karburator dan injeksi pada penelitian ini dilakukan menggunakan jenis motor 4 tak, kapasitas 110 cc, transmisi CVT. Pengujian dilakukan secara eksperimental. Hasil pengujian menunjukkan sistim bahan bakar injeksi lebih hemat 19,3% pada semua tingkat kecepatan.
Penggunaan refrigeran hidrokarbon MC-134 pada mesin freezer untuk pedagang es krim keliling I Dewa Made Susila; Daud Simon Anakottapary; I Wayan Adi Subagia; Putu Wijaya Sunu; I Nengah Ardita
Journal of Applied Mechanical Engineering and Green Technology Vol. 3 No. 2 (2022): July 2022
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jametech.v3i2.48-52

Abstract

This study aims to determine the performance and energy consumption of the freezer machine for mobile ice cream sellers using the environmentally friendly MC134 refrigerant with a compressor capacity of 1/10 HP. This research was conducted using an experimental method. The size of the capillary tube is determined using the Cap Tube 1.0.8.0 application program. The evaporator used is a bare tube type that is wrapped around an ice cream box. The test is carried out by measuring the temperature and pressure of the refrigerant, the temperature in the ice cream box, as well as the electric current and voltage in the system. The results of the analysis of performance and energy consumption will also be compared if the system uses HFC134a refrigerant. From the test results obtained the optimum mass that is filled into the system for MC134 refrigerant is 155 grams and the optimum mass for 134a refrigerant is 202 grams. The use of MC134 refrigerant is more efficient by 23.3%. The COP for MC134 refrigerant is 3.1 while the COP for 134a refrigerant is 2.7. The energy consumption for MC134 is 67.8 kJ while for R134a is 83 kJ.
Co-Authors Adi Winarta Anak Agung Ngurah Bagus Mulawarman Asrori Asrori Baliarta, I Nyoman Gede Daud Simon Anakottapary Dewa Ngakan Ketut Putra Negara I Dewa Gede Agus Tri Putra I Dewa Gede Agus Tri Putra I Dewa Gede Agus Tri Putra I Dewa Made Cipta Santosa I Dewa Made Susila I G.K. Abasana I Gusti Agung Bagus Wirajati I Gusti Ngurah Nitya Santhiarsa I K Widana I Ketut Suarsana I Komang Rusmariadi I Made Rasta I Made Suarta I Made Suarta I Made Suarta I Made Suarta I Made Suarta I N Sutarna I Nengah I Nengah Ardita I Nyoman Gede Baliarta I Nyoman Gede Baliarta I Nyoman Suamir I Nyoman Suamir I Nyoman Suparta I Putu Darmawa I Putu Gede Sopan Rahtika I Wayan Adi Subagia I Wayan Temaja Ida Ayu Gede Bintang Madrini Ketut Bangse Kris Witono Kris Witono Made Rasta Negara, I Gede Artha Ni Kadek Muliati Ni Made Dwidiani Nyoman Sugiartha Putra, I Dewa Gede Agus Tri Rudy Soenoko Sugeng Hadi Susilo Sugeng Hadi Susilo