scholarly journals The Integration of Gasification Systems with Gas Engine by Developing Wet Tar Scrubbers and Gas Filter to Produce Electrical Energy from Biomass

2018 ◽  
Vol 164 ◽  
pp. 01024 ◽  
Author(s):  
Kiman Siregar ◽  
Rizal Alamsyah ◽  
Ichwana ◽  
Sholihati ◽  
Saminuddin Tou ◽  
...  
Keyword(s):  
Power Generation ◽  
Energy Balance ◽  
Performance Test ◽  
Electrical Energy ◽  
Energy Ratio ◽  
Net Energy ◽  
Gas Engine ◽  
Downdraft Gasifier ◽  
Net Energy Ratio ◽  
And Performance

The need for energy especially biomass-based renewable energy continues to increase in Indonesia. The objective of this research was to design downdraft gasifier machine with high content of combustible gas on gas engine. Downdraft gasifier machine was adjusted with the synthetic gas produced from biomass. Besides that, the net energy ratio, net energy balance, renewable index, economic analysis and impact assessment also been conducted. Gas engine that was designed in this research had been installed with capacity of 25 kW with diameter and height of reactorwere 900 mm and 1 000 mm respectively. The method used here werethe design the Detailed Engineering Design, assembly, and performance test of gas engine. The result showed that gas engine for biomass can be operated for 8 h with performance engine of 84 % and capacity of 25 kW. Net energy balance, net energy ratio, and renewable index was 30 MJ/kW h electric; 0.89; 0.76 respectively. The value of GHG emission of Biomass Power Generation is 0.03 kg-CO2 eq per MJ. Electrical production cost for Biomass Power Generation is about IDR 1 500 per kW h which is cheaper than solar power generation which is about of IDR 3 300 per kW h.

scholarly journals Perhitungan Potensi Limbah Padat Kelapa Sawit untuk Sumber Energi Terbaharukan dengan Metode LCA

2017 ◽  
Vol 18 (2) ◽  
pp. 165 ◽  
Author(s):  
Joko Prayitno Susanto ◽  
Arif Dwi Santoso ◽  
Nawa Suwedi
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Balance ◽  
Palm Oil ◽  
Energy Ratio ◽  
Net Energy ◽  
Crude Palm Oil ◽  
Net Energy Ratio

Proses produksi crude palm oil (CPO) dan biodiesel kelapa sawit menghasilkan limbah padat sebanyak 35-40% dari total tandan buah segar (TBS) yang diolah, dalam bentuk tandan buah kosong, serat, cangkang buah dan abu bakar. Keberadaan limbah yang melimpah ini berpotensi mencemari lingkungan bila tidak tertangani dengan baik. Penelitian ini bertujuan untuk membahas dan menghitung potensi limbah padat sawit menjadi energi terbarukan dan pengaruhnya terhadap peningkatan nilai net energy ratio (NER) dan net energy balance (NEB). Dalam penelitian ini digunakan metode life cycle assessment (LCA) untuk menghitung neraca limbah padat yang hasilnya akan dikonversikan ke dalam nilai faktor energi dari sumber pustaka yang terpercaya. Hasil neraca massa limbah sawit menunjukkan bahwa total limbah padat serat dan cangkang yang dihasilkan setiap pengolahan 1 ton TBS adalah 130 kg dan 65 kg. Limbah ini bila digunakan sebagai bahan bakar boiler akan berpotensi menghasilkan energi sebesar 10.118 MJ/ton biodiesel. Tambahan energi terbarukan ini akan meningkatkan nilai NER dan NEB secara signifikan. Nilai NEB naik 27.199 MJ menjadi sekitar 37.317 MJ (37,2%) dan nilai NER naik dari 3,19 menjadi 4,01 atau meningkat 25,5%.Kata kunci : CPO, biodiesel, kelapa sawit, limbah padat sawit, NER, NEB, LCA 

scholarly journals PSII-18 Effects of protein level and lysine: net energy ratio in growing-finishing pigs.

2018 ◽  
Vol 96 (suppl_3) ◽  
pp. 73-74
Author(s):  
S Liu ◽  
J Cho ◽  
W Yun ◽  
C Lee ◽  
J Lee ◽  
...  
Keyword(s):  
Protein Level ◽  
Energy Ratio ◽  
Net Energy ◽  
Finishing Pigs ◽  
Net Energy Ratio

Research on Steric and Multilevel Concentrator for Photovoltaic Generation

2012 ◽  
Vol 608-609 ◽  
pp. 65-69
Author(s):  
Xiao Fan Yang ◽  
Zhi Long Xu ◽  
Chao Li ◽  
Zhong Ming Huang
Keyword(s):  
Power Generation ◽  
Solar Energy ◽  
Electrical Energy ◽  
Development Trend ◽  
Energy Utilization ◽  
Price Ratio ◽  
Photovoltaic Generation ◽  
Photovoltaic Power ◽  
Operating Factor ◽  
And Performance

As the development trend of solar energy, which is a green way of energy utilization, photovoltaic power generation has been a research hotspot of solar energy utilization technologies. Using the concentrating and tracking technology to increase the illumination intensity, and obtain more electrical energy, that will reduce the cost of the photovoltaic power generation system sharply. A kind of steric and multilevel concentrator for photovoltaic generation is introduced in this paper, whose concentration ratio is 3. The operating factor of plane mirrors and performance price ratio of the system is increased for optimizing the condensation parameters and structure of the concentrator.

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