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Symbiosis opportunities between food and energy system: The potential of manure-based biogas as heating source for greenhouse production
, Article Journal of Industrial Ecology ; Volume 25, Issue 3 , 2021 , Pages 648-662 ; 10881980 (ISSN) ; Golzar, F ; Bowman, G ; Hellweg, S ; Roshandel, R ; Sharif University of Technology
John Wiley and Sons Inc
2021
Abstract
The concept of symbiosis, a mutually beneficial relationship, can be applied to food and energy systems. Greenhouse systems and biogas plants are interesting technologies for food–energy symbiosis, because both are usually based in rural areas and offer opportunities for the exchange of materials (e.g., biomass waste from the greenhouse as input to biogas plants) and energy (heat from biogas co-generation for heating greenhouses). In this paper, the focus lies on manure resources for biogas in Switzerland, because manure amounts are high and currently largely underused. We provide a spatial analysis of the availability of manure as feedstock to biogas plants and heat source for greenhouses....
Optimization of biomass waste gasification combined heat and power system
, Article EPEC 2010 - IEEE Electrical Power and Energy Conference: "Sustainable Energy for an Intelligent Grid", 25 August 2010 through 27 August 2010, Halifax, NS ; 2010 ; 9781424481880 (ISBN) ; Marzi, H ; Abolghasem, H ; Sharif University of Technology
2010
Abstract
The objective of the research done in this paper was to determine cost of the power and heat system with pressurized fluidized bed gasifier using exergoexonomic appraisal techniques. Exergetic efficiency maximization was approached with use of multi-objective evolutionary optimization methods which were designed such that the costs were minimized in line with the exergoeconomic plans. The results of this method were also compared to methods that employ iterative techniques. Results showed an almost 12.28% improvement in exergetic efficient that the system could reach through utilization of the multi-objective evolutionary algorithm
Evolutionary algorithm for multi-objective exergoeconomic optimization of biomass waste gasification combined heat and power system
, Article 2009 7th IEEE International Conference on Industrial Informatics, INDIN 2009, Cardiff, 23 June 2009 through 26 June 2009 ; 2009 , Pages 361-366 ; 19354576 (ISSN); 9781424437603 (ISBN) ; Farhanieh, B ; Marzi, H ; Javadzadegan, A ; Sharif University of Technology
2009
Abstract
This paper conducts research on Thermodynamic modeling of the Fluidized bed Gasification and Exergoeconomic evaluation to determine the total cost of a combined heat and power system with pressurized fluidized bed gasifier. The paper presents use of multi-objective evolutionary optimization for the system's total cost minimization and Exergetic efficiency maximization, and has been compared to conventional iterative optimization method. It shows that by evaluating with conventional iterative optimization, Exergetic efficiency of total system can reach to 56.09% while using multi-objective evolutionary optimization it is 53.32%. However the product cost achieved by evolutionary optimization...