Rusdiyanto, Agung (2017) Pengaruh Variasi Temperatur Pendinginan terhadap Kapasitas Penyimpanan dari Hasil Purifikasi Biogas Sistem Kompresi. Sarjana thesis, Universitas Brawijaya.
Abstract
Pada saat ini, pemerintah dan masyarakat mengembangkan energi terbarukan (renewable energy) sebagai pengganti energi fossil yang menimbulkan polusi. Salah satu contoh energi alternatif yang diperoleh dari pengolahan biomassa adalah biogas. Biogas merupakan bahan bakar organik yang dihasilkan melalui proses fermentasi limbah organik secara anaerob. Akan tetapi, biogas masih mengandung gas CO2 yang menyebabkan menurunnya nilai kalor pembakaran. Selain itu, proses penyimpanan biogas yang masih belum praktis dan maksimal. Dari permasalahan yang timbul akibat penggunaan biogas, maka dilakukan penelitian tentang penyimpanan biogas dari hasil proses purifikasi. Pada penelitian ini akan diuji bagaimana pengaruh variasi temperatur pendinginan terhadap kapasitas penyimpanan dari hasil purifikasi biogas sistem kompresi. Variabel-variabel yang digunakan dalam penelitian ini pertama variabel bebas berupa temperatur pendinginan sebesar -3⁰C, -4⁰C, -5⁰C. Kemudian variabel terkontrol berupa bahan purifikasi NaOH, zeolite, dan arang aktif. Selain itu tekanan maksimalnya 225 psi dan laju alirannya 7,5 L/menit. Kemudian dilakukan pengukuran bagaimana pengaruh temperatur pendinginan terhadap massa penyimpanan biogas, kandungan kadar CO2 biogas dan lama waktu proses penyimpanan biogas. Hasil yang didapat dari proses pemurnian dengan kandungan awal CO2 40% setelah melewati larutan NaOH kadar CO2 berkurang menjadi 3%, kemudian melewati zeolit kadar CO2 menjadi 0,33% dan setelah melewati arang aktif kadar CO2 menjadi 0. Adapun temperatur akhir saat tidak menggunakan media pendinginan sebesar 35, 2°C. akan tetapi, ketika menggunakan variasi temperatur -3°C, 4°C, dan 5°C menghasilkan temperatur akhir sebesar 23.3°22.5°21.6°C. Waktu yang dibutuhkan pada proses penyimpanan biogas sampai tekanan 225 psi dengan variasi pendinginan sebesar 6751 detik atau 01 jam 52 menit 31 detik, 7238 detik atau 2 jam 00.38 detik, 7699 atau 2 jam 08 menit 19 detik. Kemudian densitas biogas pada variasi C, setelah melakukan perhitungan interpolasi pada tabel propertis didapatkan 11.087 kg/m³, 11.120 kg/m³, 11.158 kg/m³ dan massa penyimpanan berturut-turut sebesar 88.699 gram, 88.965 gram, 89.264 gram.
English Abstract
At the moment, governments and communities were developing renewable energy as a replacement for fossil energy that causes pollution. One example of alternative energy obtained from biomass processing was biogas. Biogas was an organic fuel produced by anaerobic organic fermentation process. However, biogas still contains CO2 gas which causes a decrease in burning calorific value. In addition, the biogas storage process was still not practical and maximal. From the problems using of biogas, then do research on biogas storage from the purification process. This research would be tested how the influence of cooling temperature variation to the storage capacity of purification biogas compression system. The variables used in this research were free variables of cooling temperature -3⁰C, -4⁰C, -5⁰C. The controlled variables in this research were NaOH, zeolite, and activated charcoal. The maximum pressure 225 psi and the flow rate 7.5 L/min. The next activity was measured of the effect of cooling temperature toward biogas storage mass, CO2 content in the biogas and duration of biogas storage process. The results obtained from the purification process with the content of CO2 40% after passing the NaOH, content of CO2 decreased to 3%. The next passed the zeolite, content of CO2 0.33% and passed through the activated charcoal content of CO2 0. The final temperature when not using Cooling was 35,2°C. However, when using a cooling temperature were -3°C, -4°C, and -5°C, it produces a final temperature were 23.3°C, 22.5°C, and 21.6°C. The time required for the biogas storage process to a pressure 225 psi with variations of cooling temperature were -3°C, -4°C, and -5°C at 6751 seconds or 01 hours 52 minutes 31 seconds, 7238 seconds or 2 hours 00.38 Second, 7699 seconds or 2 hours 08 minutes 19 seconds. The density of biogas at variation of cooling temperature were -3°C, -4°C, and -5°C. The density value after performing interpolation on table properties were found 11.087 kg/m³, 11.120 kg/m³, 11.158 kg/m³ and mass in the storage 88,699 grams, 88,965 grams, 89,264 grams.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2017/428/051705068 |
| Uncontrolled Keywords: | Biogas, fermentasi, CO2, NaOH, zeolit, densitas gas. |
| Subjects: | 600 Technology (Applied sciences) > 665 Technology of industrial oils, fats, waxes, gases > 665.7 Natural gas and manufactured gases > 665.77 Production of manufactured gases > 665.776 Production of manufactured gases from biological wastes |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 04 Sep 2017 09:54 |
| Last Modified: | 10 Dec 2020 10:42 |
| URI: | http://repository.ub.ac.id/id/eprint/2064 |
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