Evaluating the Energy Flow and Environmental Effects of Cake Production in Guilan Province by Life Cycle Assessment Approach

Document Type : Research Paper


1 Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj.

2 Department of Agricultural Engineering, Faculty of Engineering and Technology, College of Agriculture and Natural Resources, Tehran University

3 Department of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, Tehran University

4 Department of of Agricultural Mechanization, Department of Agricultural Machinery Engineering, Ramin Agriculture and Natural Resources University of Ahvaz.


In this study, the energy consumption and environmental emissions for cake production were studied using life cycle assessment in Guilan Province. Necessary data using questionnaires and interviews was gathered from 21 factories of cake production. Equivalent energy of inputs and outputs was obtained using coefficients of energy. The results of this study showed that 62670.57 MJ of energy was consumed for the production of one ton of cake. The highest share of energy consumption allocated to natural gas with 30931 MJ. Evaluation of energy indices showed that energy efficiency in the production of cake in Guilan is 0.2872. The results of life cycle assessment showed that in cake production 13099.49 kg CO2 eq.  is released into the air that about 86 percent of that was related to activities outside of the factory and the rest was related to the combustion of natural gas for cooking cake.


Main Subjects

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