Comparative exergoeconomic analyses of the integration of biomass gasification and a gas turbine power plant with and without fogging inlet cooling |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Ataturk, 25240 Erzurum, Turkey;2. Faculty of Mechanical Engineering, University of Tabriz, Iran;3. Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario L1H 7K4, Canada;4. Institute for Energy Engineering, Technische Universität Berlin, Marchstr 18, 10587 Berlin, Germany;1. Department of Electrical and Electronic Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan;2. Environment and Energy Research Center, Nitto Denko Corporation, 2-8 Yamadaoka, Suita, Osaka 565-0871, Japan;1. HEP-Renewable Energy Sources Ltd., Ulica grada Vukovara 37, 10 000 Zagreb, Croatia;2. University of Zagreb, Faculty of Electrical Engineering and Computing, Unska 3, 10 000 Zagreb, Croatia;1. Departamento de Ciencias Químico Biológicas, Universidad de las Américas Puebla, Santa Catarina Mártir s/n, 72810 Cholula, Puebla, Mexico;2. Departamento de Ingeniería Química y Alimentos, Universidad de las Américas Puebla, Santa Catarina Mártir s/n, 72810 Cholula, Puebla, Mexico;3. Department of Medicine, Division of Infectious Diseases, University of British Columbia, Vancouver, Canada;1. Zhangjiakou Vocational and Technical College, No. 59 Malu East Road, Zhangjiakou 075000, Hebei, People''s Republic of China;2. Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People''s Republic of China;1. Biomass Refinery Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 3-11-32 Kagamiyama, Higashi-Hiroshima, Hiroshima 737-0046, Japan;2. Department of Forest Biomaterials Engineering, College of Forest and Environmental Sciences, Kangwon National University, 192-1 Hyoja, Chuncheon 200-701, South Korea;3. Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6226, USA;4. BioEnergy Science Center, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6226, USA;1. College of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China;2. Department of Industrial Engineering, Texas Tech University, Lubbock, TX 79409, USA;3. Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, USA |
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| Abstract: | Inlet cooling is effective for mitigating the decrease in gas turbine performance during hot and humid summer periods when electrical power demands peak, and steam injection, using steam raised from the turbine exhaust gases in a heat recovery steam generator, is an effective technique for utilizing the hot turbine exhaust gases. Biomass gasification can be integrated with a gas turbine cycle to provide efficient, clean power generation. In the present paper, a gas turbine cycle with fog cooling and steam injection, and integrated with biomass gasification, is proposed and analyzed with energy, exergy and exergoeconomic analyses. The thermodynamic analyses show that increasing the compressor pressure ratio and the gas turbine inlet temperature raises the energy and exergy efficiencies. On the component level, the gas turbine is determined to have the highest exergy efficiency and the combustor the lowest. The exergoeconomic analysis reveals that the proposed cycle has a lower total unit product cost than a similar plant fired by natural gas. However, the relative cost difference and exergoeconomic factor is higher for the proposed cycle than the natural gas fired plant, indicating that the proposed cycle is more costly for producing electricity despite its lower product cost and environmental impact. |
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| Keywords: | Renewable energy Biomass gasification Gas turbine Fog cooling Exergy Exergoeconomic analysis |
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