Simulation of Biomass-Organic Rankine Cycle (ORC) as a Small Scale Electricity Generating Unit
Keywords:
Biomass, Electricity, Organic Rankine Cycle, Listrik, Refrigerant, biomassaAbstract
Biomass can be used as an energy source to generate electricity through rankine cycle. However, due to the heat of combustion produced is low, a cycle with an organic working fluid is used in the cycle. This system can be designed to produce small-scale electricity for community needs. This minimalist design is expected to make it easier for people to meet their electricity needs. Conceptual studies are carried out using Aspen plus application and simple economic calculations. The biomass used was palm shells, the heating medium used was Therminol 66, and the working fluid was varied (R21, R114, R141b, R245fa, and R123). Based on the research results, the working fluid that has the highest efficiency in the organic rankine cycle with the same operating condition is R21, which is 13.71%. It takes 90 kg/hour of palm shell to generate 35 kW of electricity per hour. The cost required to design this equipment is 2,020,608,041 IDR.
References
Al-Rosyid, H. Nurhasanah, R. & Aditya, E. (2016). Perencanaan Pemanfaatan Sumber Panas Surya dalam Siklus Uap dengan Fluida Kerja Organik R113. Jurnal Power Plant, 4 (3): 136-144.
Amicable, S. Lee, J. I. & Kum, D. A. (2015). A Comprehensive Design Methodology of Organic Rankine Cycles for the Waste Heat Recovery of Automotive Heavy-Duty Diesel Engines. Applied Thermal Engineering, 87: 574-585.
Bejan, A. Tsatsaronis, G. & Moran, M. J. Thermal Design and Optimization. (1996). John Wiley & Sons
Darvish, K. Ehyai, M. A. Atabi, F. & Rosen, M. A. (2015). Selection of Optimum Working Fluid for Organic Rankine Cycles by Exergy and Exergy-Economic Analyses. Sustainability, 7: 15362-15383.
Douvartzides, S & Karmalis, I. (2016). Working Fluid Selection for the Organic Rankine Cycle (ORC) Exhaust Heat Recovery of an Internal Combustion Engine Power Plant. Material Science and Engineering, 161.
Idris, S. S. Rahman, N. A. & Ismail, K. (2012). Bioresource Technology Combustion Characteristics of Malaysian Oil Palm Biomass, Sub-Bituminous Coal and Their Respective Blends via Thermogravimetric Analysis (TGA). Bioresource Technology, 123: 581-591.
Lee, Y. J. Park, C. Ryu, K. S. Gang, W. Yang, Y. & Hyun, S. (2013). Bioresource Technology Comparison of Biochar Properties from Biomass Residues Produced by Slow Pyrolysis. Bioresource Technology, 148: 196-201.
Leibowitz, H. Smith, I. K. & Stosic, N. (2006). Cost Effective Small Scale ORC Systems for Power Recovery from Low Grade Heat Sources. International Mechanical Engineering Congress and Exposition: 521-527.
Susanto, J. P. Santoso, A. D. & Suwedi, N. (2017). Perhitungan Potensi Limbah Padat Kelapa Sawit untuk Sumber Energi Terbaharukan dengan Metode LCA. Jurnal Teknologi Lingkungan, 18 (2): 165-172.
Wang, D. Ling, X. Peng, H. Liu, L. & Tao, L. (2013). Efficiency and Optimal Performance Evaluation of Organic Rankine Cycle for Low Grade Waste Heat Power Generation. Energy, 50: 343-352.
Xi, X. Zhou, Y. Guo, C. Yang, L. & Du, X. (2015). Characteristics of Organic Rankine Cycles with Zeotropic Mixture for Heat Recovery of Exhaust Gas Boiler. Energy Procedia, 75: 1093-1101.
