Replacement of Diesel by Biogas Generated From Wastewater Treatment in a Small Diesel Generator by Dual Fuel Technology

2021 ◽  
Author(s):  
Hongsheng Guo ◽  
Shouvik Dev ◽  
David Stevenson ◽  
James Butler ◽  
Boris Tartakovsky ◽  
...  
Author(s):  
Shouvik Dev ◽  
David Stevenson ◽  
James Butler ◽  
Boris Tartakovsky ◽  
Hongsheng Guo ◽  
...  

Abstract Canada’s remote communities experience harsh weather much of the year and run diesel generators 24 hours a day to provide heat and power. These generators utilize diesel fuel that is transported at great expense and generate greenhouse gas (GHG) and pollutant emissions. Meanwhile, remote communities produce organic wastes, such as wastewater and food wastes. Appropriate treatment of these wastes not only improves the community health and environment, but also generates certain amount of renewable fuels, such as biogas and/or syngas. Replacing diesel fuel by the renewable fuels generated from the waste treatment in the diesel generators can offset the use of diesel and also reduce GHG and pollutant emissions in remote communities. This paper reports an application of biogas generated from wastewater treatment to replace diesel in a small diesel generator by dual fuel engine technology. With simple modification, the biogas containing 50–95% of methane was introduced into the engine intake manifold. Tests were conducted to evaluate the effects of biogas flow rate and composition on average diesel fuel consumption and emissions of carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx) and unburned hydrocarbons (HC). The results reveal that the introduction of biogas into the engine reduced the average diesel consumption. However, the reduction of average diesel consumption with increasing biogas flow rate was not linear, possibly due to the increase in HC emissions. The introduction of biogas reduced NOx emissions but increased CO emissions. A change in the composition of biogas (methane to CO2 ratio) did not significantly affect the average diesel consumption and emissions.


Fuel ◽  
2019 ◽  
Vol 246 ◽  
pp. 187-195
Author(s):  
Fanxu Meng ◽  
Carolyn LaFleur ◽  
Asanga Wijesinghe ◽  
John Colvin

2016 ◽  
Vol 6 (1) ◽  
pp. 38-45 ◽  
Author(s):  
Daniel Strödecke

Author(s):  
Thanh Vo Xuan ◽  
Dung Do Van ◽  
Quoc Hoang An

Hydrogen fuel becomes an alternative fuel because of its advantage properties. Hydrogen fuel can be used in form of H2 or HHO. On the dual-fuel systems, hydrogen may be supplied to engines by injectors or by the differential pressure in the intake manifold. This paper presented the applicability of hydrogen on gasoline engines. The paper analyzed and evaluated the methods of hydrogen fuel applications, the results of the performance and engine emissions of the latest researches in over the world. The experiments were performed at hydrogen volume ratio from 1% to 4.5% and different experimental conditions. The experimental results were compared with only-gasoline engines. The combustion cylinders pressure is increased. The thermal efficiency is increased to 7%. The emission of HC and CO emissions are decreased significantly. NOx is reduced at learn conditions and increased at other conditions.


2015 ◽  
Vol 20 (S10) ◽  
pp. 34-39
Author(s):  
Marcel Ott ◽  
Roland Alder ◽  
Ingemar Nylund

2016 ◽  
Vol 2016.69 (0) ◽  
pp. 279-280
Author(s):  
Shinichiro FURUSU ◽  
Naoki HAYASHIDA ◽  
Kazuhiro ENOKIDA ◽  
Osamu HIRAKO
Keyword(s):  

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Romi Djafar ◽  
Agus Susanto Ginting

Saat ini ketersediaan bakar fosil  semakin  langka serta harganya semakin meningkat sehingga dibutuhkan  sumber energi  alternatif  yang sifatnya dapat diperbaharui. Sumber energi alternatif seperti biomasa dapat dikonversi menjadi syngas melalui proses gasifikasi untuk bebrbagai keperluan misal Internal combustion engine (ICE).                 Pada penelitian ini dilakukan aplikasi syngas reaktor downdraft dari bahan bakar tongkol jagung untuk mesin diesel generator set. Tujuan penelitian adalah mengetahui performa reaktor gasifikasi, performa mesin diesel, dan mengetahui jumlah bahan bakar solar yang tergantikan dengan adanya penambahan syngas.  Untuk mendapatkan hasil penelitian maka produser gas dilewatkan melalui saluran inlet gas analizer yang beroperasi secara real time kemudian keluar menuju intake manifold mesin diesel.  Adapun variasi pembebanan yang dilakukan adalah 200-2000 Watt pada interval 200 Watt dengan kecepatan konstan mesin diesel  sebesar 1500 rpm. Hasil penelitian menunjukkan bahwa komponen syngas yang dihasilkan masing-masing kosentrasi adalah O2 (10,2-26,7%), H2 (7,9-13,6%), CH4 (6,6-19,5%), CO (9,2-16,5%), CO2 (6,3-14,5%).dan N2 (59.8-43.3%). Efisiensi gas dingin gasifikasi diperoleh sebesar 35.5% dengan komsumsi bahan bakar sebesar 1.22 kg/jam.kW. Sedangkan jumlah bahan bakar solar yang tergantikan dengan adanya penambahan syngas yaitu sebesar 47.4%. Secara menyeluruh efisiensi total sistem diperoleh sebesar 10.8%. Kata Kunci: Reaktor, Dual Fuel, Syngas. Efisiensi


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