FLYWHEEL : Jurnal Teknik Mesin Untirta最新文献

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Karakteristik Dinamik Disc Brake Daihatsu Sigra 1200 cc dengan Metode Bump Test

FLYWHEEL : Jurnal Teknik Mesin Untirta Pub Date : 2019-03-28 DOI: 10.36055/FWL.V0I0.3947

subekti bekti

引用次数: 11

Produksi Hidrogen Melalui Reaksi Hasil Canai Dingin Paduan Al-Sn-Zn Dengan Larutan NaOH 用NaOH溶液对Canai冷合金Al-Sn-Zn的反应产生氢

FLYWHEEL : Jurnal Teknik Mesin Untirta Pub Date : 2019-01-31 DOI: 10.36055/FWL.V0I0.4823

A. Alhamidi, Esky Yanurdin, M. Fitrulloh

{"title":"Produksi Hidrogen Melalui Reaksi Hasil Canai Dingin Paduan Al-Sn-Zn Dengan Larutan NaOH","authors":"A. Alhamidi, Esky Yanurdin, M. Fitrulloh","doi":"10.36055/FWL.V0I0.4823","DOIUrl":"https://doi.org/10.36055/FWL.V0I0.4823","url":null,"abstract":"Hidrogen merupakan salah satu dari energi terbarukan yang banyak dikembagkan sekarang ini, karena jumlahnya yang melimpah dialam dan ramah lingkungan. Reaksi hidrolisis antara aluminium (Al) dengan air murni dapat menghasilkan gas hidrogen. Namun, lapisan passive pada permukaan Al menghalangi jalannya reaksi. Penelitian ini bertujuan untuk mengetahui pengaruh salah salah satu unsur seperti timah (Sn) dan seng (Zn) terhadap reaksi hidrolisis pada larutan NaOH serta penambahan deformasi canai dingin pada paduan Al–Sn–Zn yang diharapkan mampu melindungi dan merusak lapisan passive pada Al. Pada penelitian ini, sampel dibuat dengan memadukan Al dengan Sn dan Zn dengan teknik pengecoran pada paduan Al-3Sn-Zn ( wt .%) dengan variasi komposisi Zn ( wt .%): 0%; 2%; 4% dan 6% serta paduan Al–Sn–3Zn ( wt .%): dengan variasi komposisi Sn ( wt .%): 0%; 2%; 4% dan 6%. Paduan kemudian dilakukan homogenisasi selama 24 jam. Sampel dilakukan canai dingin dengan reduksi sebesar 60%. Reaksi hidrolisis paduan dilakukan dengan larutan NaOH 0,9 M. Hasil menunjukan bahwa produksi volume hidrogen yang didapat sangat rendah dengan konversi efisiensi (%) terbesar yaitu 3,3 % pada sampel paduan 91 Al–3Sn–6 Zn ( wt .%) dan terendah pada sampel paduan 97Al–0Sn–3 Zn ( wt .%) yaitu sebesar 1,08%. Hasil analisa XRD pada sampel paduan sebelum reaksi menunjukan bahwa tidak terbentuk fasa intermetalik dan hanya terbentuk fasa tunggal Al dan Sn, kemudian setelah sampel direaksikan dengan larutan NaOH 0,9 M terbentuk senyawa Al(OH) 3 dan AlOOH yang mempengaruhi laju reaksi hidrolisis paduan Al–Sn–Zn.","PeriodicalId":118131,"journal":{"name":"FLYWHEEL : Jurnal Teknik Mesin Untirta","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130074158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Temperature and Time of Gasification Process and The Addition of Catalyst to The Composition of The Combustible Gas from The Wastes of Tobacco Leaves With Gasifier Updraft 气化温度、气化时间及催化剂的添加对烟叶废弃物烟气组成的影响

FLYWHEEL : Jurnal Teknik Mesin Untirta Pub Date : 2019-01-31 DOI: 10.36055/fwl.v0i0.4821

F. Sulaiman, Endang Suhendi, N. Prastuti, Okta Abdul Choir

{"title":"The Effect of Temperature and Time of Gasification Process and The Addition of Catalyst to The Composition of The Combustible Gas from The Wastes of Tobacco Leaves With Gasifier Updraft","authors":"F. Sulaiman, Endang Suhendi, N. Prastuti, Okta Abdul Choir","doi":"10.36055/fwl.v0i0.4821","DOIUrl":"https://doi.org/10.36055/fwl.v0i0.4821","url":null,"abstract":"The increasing industrial production is causing more of energy consumption needed. Tobacco leaves are waste from cigarette production that can be use as alternative biomass energy to solve the problems of the energy crisis in the near future. Gasification is the conversion of solid carbon raw materials from biomass by the partial oxidation to be combustible gas (CO, H 2 , and CH 4 ) as an energy source. This research uses the fixed-bed reactor with capacity of 300 grams by the flow of updraft and raw material of waste tobacco leaves that have a size -14 + 18 mesh. The influence of temperature was research on 700 o C, 800 o C, and 900 o C with the reaction time for 20 minutes and the addition of a catalyst K 2 CO 3 . gasification medium used air and steam with the constant flow rate 0.504 m3/hour air and 0.0555 kg/minutes steam. Step of the process with the preparation of raw materials, the gasification process, and analysis of gas products. The result of the gasification process analysed using the gas chromatography, and the best results were obtained on the temperature 700 o C in the process time for 10 minutes produced combustible gas are CO = 22.82 % v, H 2 = 26.82 % v, CH 4 = 7.09 % v. increasing production gas happened when a catalyst K 2 CO 3 is added, the producting of combustible gasses are CO = 52.76 % v, H 2 = 23.46 % v, CH 4 , = 3.23 % v","PeriodicalId":118131,"journal":{"name":"FLYWHEEL : Jurnal Teknik Mesin Untirta","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114265884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

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