Perancangan sistem monitoring kadar dan mass flowrate gas methane (CH4) biogas dari bioreaktor anaerob dengan menggunakan limbah organik buah

Hasjim, Badar (2020) Perancangan sistem monitoring kadar dan mass flowrate gas methane (CH4) biogas dari bioreaktor anaerob dengan menggunakan limbah organik buah. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pemanfaatan limbah buah buahan sebagai bahan produksi biogas melalui proses bioreaktor anaerob. Bioreaktor anaerob ini memiliki nilai kadar dan mass flow biogas yang berfluktuasi akibat kadar air dan nilai C/N ratio dari setiap nama sampah buah yang berbeda beda. Nilai yang berfluktuasi tersebut mengakibatkan nilai kalor gas methane juga berfluktuasi, semakin bagus kadar dan mass flowrate biogas maka semakin tinggi nilai kalornya dan sebaliknya sehingga perlu dimonitor secara real time. Disamping itu juga biogas itu memiliki sifat korosi karena ada komponen H2S dan nilai pengukuran mass flowrate sangat kecil sehingga diperlukan sensor yang memiliki nilai yang kecil dan anti korosi. Oleh karena itu, diperlukan sebuah perancangan sistem monitoring pada output dari proses yang ada didalam digester yang dilengkapi sensor yang memiliki range pembacaan kecil dan anti korosi. Hasil pengukuran dari setiap sensor tersebut akan ditransmisikan ke mini PC lalu disimpan di sebuah database secara realtime yang berupa grafik dan tabel. Dari tugas akhir ini dapat disimpulkan bahwa nilai kadar gas metana mengalami fluktuasi dan nilai kadar tertinggi dapat mencapai sebesar 100% LEL (50.000 ppm) di saat kondisi siang hari pada hari ke-10 dan pada hari ke-10 nilai mass flowrate masih mencapai 0 LPM artinya belum adamnya aliran biogas. Dan saat mengukur di bioreactor hutan pakal alat ukur kadar gas metana memiliki performa pembacaan menurun atau kehandalan nya semakin berkurang.
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Utilization of fruit waste as a material for biogas production through an anaerobic bioreactor process. This anaerobic bioreactor has a fluctuating value of biogas content and mass flow due to moisture content and the C / N ratio value of each different fruit waste name. This fluctuating value causes the calorific value of methane gas to fluctuate, the better the content and mass flowrate of the biogas, the higher the calorific value and vice versa so that it needs to be monitored in real time. Besides that, biogas also has corrosion properties because there is an H2S component and the mass flowrate measurement value is very small so that a sensor that has a small value and is anti-corrosion is needed. Therefore, it is necessary to design a monitoring system at the output of the process in the digester which is equipped with a sensor that has a small reading range and is anti-corrosion. The measurement results from each sensor will be transmitted to the mini PC and then stored in a realtime database in the form of graphs and tables. From this final project it can be concluded of methane gas content fluctuates and the highest level value can reach 100% LEL (50000 ppm) when daytime conditions on day 10 and on day 10 the mass flowrate value is still 0 LPM , meaning that there is no biogas flow and when measuring in the bioreactor hutan pakal, the methane gas level measuring instrument has a decreased readin performance or its reliability is decreasing.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	monitoring, produksi biogas, kadar CH4, bioreaktor anaerob, limbah buah buahan,monitoring, biogas production, content of CH4 , bioreactor anaerob, fruit waste
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Badar Hasjim
Date Deposited:	25 Aug 2021 07:55
Last Modified:	25 Aug 2021 07:55
URI:	http://repository.its.ac.id/id/eprint/89620

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