Environmental Impact and Energy Flow Assessment in Greenhouse Primrose Production Using Cumulative Energy Demand and Cumulative Exergy Demand Approach

The present study analyzed the energy flow of this product by the cumulative energy demand (CED) and cumulative exergy demand (CExD) method by providing a life cycle inventory of greenhouse Primrose production. The required data through interviews and questionnaires were collected from greenhouse owners in Savojbolagh. Based on the results, the total CED and CExD values for one bush of Primrose were calculated as 8.45 and 8.24 MJ eq., respectively. Among the impact categories of the CED method, non-renewable-fossil had the largest share with 8.43 MJ eq. that 66% of it was related to direct energy consumption in the greenhouse. Also, 8.20 MJ eq. CExD was related to the non-renewable-fossil impact category that direct energy consumption in the greenhouse had the most important role in it. The energy consumption for the production of one bush of Primrose resulted in the emission of 0.20576 kg of carbon dioxide equivalent.