syam, amir
Mechanical Engineering Dept., Engineering Faculty, University of Medan Area

Published : 4 Documents
Articles

Found 4 Documents
Search

Numerical Study on Plate Holders Pipe Recovery Boiler Superheater Amrinsyah, Amrinsyah; syam, amir; Darianto, Darianto; zulfikar, zulfikar
JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Vol 2, No 1 (2018): EDISI JUNI
Publisher : JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (342.96 KB)

Abstract

The important part which has a function as supporting of superheater header on the boiler recovery type (RB) is a couple of support plate which is hanged on the hanger rod. This part is very difficult to analyze by experimental because there are in a tight insulation and heavy duty condition. This research aim to obtain the stress distribution that happened on the plate as the effect of static load in simulation mode. The model is designed base on the dimension of real support plate size 400x200 mm and thickness 15 mm. It is use the FEM software of Ansys version 5.4. The theory of failure analysis of Tresca and von Mises become the reference for materials strength. The area contact theory of b represents the reference to determine the length of stress area along curve of both contact area. The material that is used is from steel ASTM A514 with the yield strength 690 MPa. The Result is stress distribution along curve and also critical point which has possibility failure occurs on the support plate. The analysis result could be a reference for the development of the further construction.
Heat Transfer Simulation on the Wall of Rotary Cast Iron Smelting Furnace Capacity of 1 ton/hour Syam, Amir; zulfikar, zulfikar; Hutasuhut, Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Vol 2, No 1 (2018): EDISI JUNI
Publisher : JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (433.8 KB)

Abstract

The rotary smelting furnace is a cast iron smelting furnace with the working principle of raw material rotated in a melting drum. The difficulty of this type of furnace is if the furnace wall is damaged, it will be very difficult to determine the appropriate conduction coefficient material as a replacement material. Numerical simulations are required to obtain the heat transfer information that occurs on the furnace wall. This analysis aims to (1) obtain the temperature distribution occurring in the furnace wall, and (2) obtain the heat transfer coefficient on the wall surface on the inside, center, and outside of the melting furnace. Calculation of numerical simulation in this research is assisted by using Ansys software. The theoretical basis of numerical heat transfer simulation analysis can be determined by using the conduction temperature equation in each node. The load conditions in this case are assumed as thermal loads. The result obtained temperature distribution on the inner wall is 1590 oC, middle 1470 oC, and outside 1104 oC.
Analisa Kelebihan Tekanan Pada Saat Pembakaran Gas Berlebih Pada Flare Syam, Amir
JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Vol 2, No 2 (2018): Edisi Desember
Publisher : JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (436.797 KB)

Abstract

Gas metana ini merupakan gas rumah kaca yang 21 x lebih merusak dari pada karbondioksida. Dampak terjadinya kelebihan tekanan akan terlihat api yang lebih tinggi dari cerobong flare, dan kemungkinan besar bisa mengakibatkan kebakaran di area pengolahan biogas.Dari hasil analisis kinerja biogas flare yang didapat secara langsung dari Biogas Pabrik Ukindo adalah untuk tekanan 8-15 kpa, kandungan metana 40 – 60%,dan temperatur pembakaran 1000 – 1200 ˚C, untuk emisi gas rumah kaca didapat dari hasil perhitungannya adalah Emisi CO2 dari bahan bakar gas dengan emisi CH4  berdasarkan  faktor emisi per tahun =  206,26 x 107lb/yr, dan untuk kerugian tekanan yang terjadi pada pemipaan total adalah 0,1035 Pa
RANCANGAN MEDIA ADSORBSI ZEOLIT ALAM SEBAGAI ADSORBEN EMISI GAS MESIN OTOMOTIF Siregar, Amru; Syam, Amir; Mustafa, Mustafa
JMEMME (JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY) Vol 3, No 1 (2019): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.306 KB) | DOI: 10.31289/jmemme.v3i1.2499

Abstract

Bahan bakar fosil merupakan sumber energi utama untuk aktivitas industri, transportasi, produksi listrik dan kegiatan pertambangan. Emisi gas hasil pembakaran bahan bakar fosil secara teoritis mengandung polutan emisi gas yang terdiri dari gas-gas COx, NOx, HC, Ox, SO2 dan logam-logam berat. Pembakaran bahan bakar fosil pada sektor transportasi berkontribusi paling besar terhadap polusi yang dihasilkan oleh emisi gas buang mesin otomotif. Oleh karena itu perlu dilakukan penanganan yang tepat terhadap emisi gas mesin otomotif ini. Hal ini telah dirancang bentuk geometris alat yang berfungsi sebagai media adsorbsi emisi gas mesin otomotif yang disebut bed reactor (BR). Bentuk geometris dari BR dirancang merujuk kepada bentuk geometris dari knalpot (muffler) kenderaan mobil mini bus. BR yang dirancang terdiri dari 2 (dua) jenis BR yaitu jenis aliran laminar dan aliran turbulen. Bentuk geometris BR, berbentuk penampang elips dengan sumbu mayor = 192 mm, sumbu minor = 125 mm, dan panjang muffler = 320 mm, untuk jenis aliran laminar. Sedangkan BR jenis aliran turbulen berbentuk penampang elips dengan sumbu mayor 192 mm dan sumbu minor 125 mm, dan panjang muffler L = 350 mm. Daya adsorbsi BR telah diuji dengan bantuan alat uji emisi gas jenis anycar autochek gas & smoke versi 1.5.1.E-1. Daya adsorbsi BR maksimum untuk jenis aliran laminar terhadap gas CO2 = 47,76 % dan untuk aliran turbulen CO = 42,72 % & gas HC = 35,40 %, masing-masing BR diisi zeolit alam dengan besar butir 10 mesh.