Combining an accelerated deployment of bioenergy and land use strategies: Review and insights for a post-conflict scenario in Colombia

Author

Miguel Angel Gonzalez-Salazar, Mauro Venturini, Witold-Roger Poganietz, Matthias Finkenrath and Manoel Regis L.V. Leal

Renewable and Sustainable Energy Reviews, 2017, vol. 73, issue C, 159-177

Abstract: After a 50-year armed conflict, negotiations with guerrilla groups are likely to lead to peace agreements in Colombia. A post-conflict context would open up the possibility of modernizing agriculture, improving living standards in rural areas and making good use of the vast natural resources. Sustainable bioenergy combined with improved land use strategies is of particular interest in this context. However, while bioenergy is today the second largest renewable resource after hydropower, no official plans exist for exploiting it in a post-conflict context.

Keywords: Bioenergy; Biofuels; Land use change; Energy policy; Agricultural intensification; Deforestation; Greenhouse gas emissions; Post-conflict; Energy modeling (search for similar items in EconPapers)
Date: 2017
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Sustainable power generation from bacterio-algal microbial fuel cells (MFCs): An overview

Author

Beenish Saba, Ann D. Christy, Zhongtang Yu and Anne C. Co

Renewable and Sustainable Energy Reviews, 2017, vol. 73, issue C, 75-84

Abstract: Microbial fuel cells (MFCs) are bioelectrochemical devices that allow the harvesting of electricity generated during anaerobic respiration of selected bacterial species. This technology shows promise in both wastewater treatment and sustainable bioenergy conversion applications. Bacterial respiration occurs in the anaerobic anode compartment of the MFC, and is electrochemically coupled with electron acceptors in the MFC's aerobic cathode compartment. This paper summarizes the published results of bacterio-algal MFCs. The use of microalgae in MFCs has gained interest primarily due to algae's ability to photosynthesize atmospheric CO2, producing both biomass and oxygen and thereby facilitating the cathodic reaction. These phototrophic microorganisms can serve as biocatholytes in MFCs because the oxygen produced is an electron acceptor for the electrons harvested from the anode compartment. The bacterio-algal MFC can provide multiple benefits including 1) power generation, 2) wastewater treatment, 3) algal biomass cultivation and pigment production, 4) carbon dioxide assimilation, and 5) oxygen production. This review article summarizes not only successful published results of bacterio-algal fuel cells but also highlights critical operational parameters and their effect on power generation and output efficiency.

Keywords: Bacteria; Algae; Microbial fuel cells; Operational and electrical parameters(search for similar items in EconPapers)
Date: 2017
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Recent advances and challenges of fuel cell based power system architectures and control – A review

Author

Vipin Das, Sanjeevikumar Padmanaban, Karthikeyan Venkitusamy, Rajasekar Selvamuthukumaran, Frede Blaabjerg and Pierluigi Siano

Renewable and Sustainable Energy Reviews, 2017, vol. 73, issue C, 10-18

Abstract: Renewable energy generation is rapidly growing in the power sector industry and widely used for two categories: grid connected and standalone system. This paper gives the insights about fuel cell operation and application of various power electronics systems. The fuel cell voltage decreases bit by bit with expansion in current because of losses associated with fuel cell. It is difficult in handling large rated fuel cell based power system without regulating mechanism. The issue connected with fuel based structural planning and the arrangements are widely investigated for all sorts of utilization. In order to improve the reliability of fuel cell based power system, the integration of energy storage system and advanced research methods are focused in this paper. The control algorithms of power architecture for the couple of well-known applications are discussed. Additionally, the paper addresses the suitable processor utilized as a part of the energy unit application on the premise of fuel cell characteristics. In this paper, the challenges to improve the dynamics of controller in fuel cell based applications are mentioned.

Keywords: Controller; Dynamics; Integration; Reliability; Renewable; Suitability(search for similar items in EconPapers)
Date: 2017
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Photovoltaic agriculture - New opportunity for photovoltaic applications in China

Author

Jinlin Xue

Renewable and Sustainable Energy Reviews, 2017, vol. 73, issue C, 1-9

Abstract: Photovoltaic industry has been an important development direction of China's strategic emerging industries since 2012, and more and more attentions have been paid to broaden the domestic demand to solve the problem of overcapacity of China's PV industry. Photovoltaic agriculture, the combination of photovoltaic power generation and agricultural activities, is a natural response to supply the green and sustainable electricity for agriculture. There are several main application modes of photovoltaic agriculture such as photovoltaic agricultural greenhouse, photovoltaic breeding, photovoltaic wastewater purification, photovoltaic water pumping and new type rural solar power station. Photovoltaic agriculture can effectively alleviate the contradiction between more population and less land, powerfully promote the development of controlled environmental agriculture, evidently increase economic benefits of farmers, and significantly improve environment due to emissions reduction in China. In recent years, photovoltaic agriculture has a rapid development in China due to powerful support policies, flourishing controlled environmental agriculture, policy-oriented rural electrification and promising electric machinery for greenhouse. Therefore, photovoltaic agriculture provides new opportunity for China's photovoltaic industry, thus not only to solve the dilemma of overcapacity for China's photovoltaic industry effectively, but also to accelerate the development of modern agriculture in China. However, the more theoretical researches and practical exploration must be conducted to optimize the combination of photovoltaic power generation and agricultural planting. And the unified standards must be established to standardize the design and scale of projects of photovoltaic agriculture. Also, photovoltaic enterprises need to produce widely applicable photovoltaic products for agricultural production and farmers’ life.

Keywords: Photovoltaics; Agriculture; Renewable energy; Development; Opportunity(search for similar items in EconPapers)
Date: 2017
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