EVALUATION OF GGE OF DIFFERENT PROCESS FOR DRYING ORANGE SLICES

Abstract

Just because of burning fossil fuels and the fact that renewable energy sources (solar, wind, hydraulic, geothermal, biomass, tidal, wave etc.) have not become widespread globally, many parallel environmental problems such as global warming, climate change and carbon emissions have been emerged. In the present study, two different orange cultivars (Valencia and Washington Navel) were dried under different air-convective conditions (50, 55 and 60°C). Samples were sliced three different thickness as 5, 7 and 9 mm, respectively. In addition, three different drying time was selected for orange drying as 8, 9 and 10 h, respectively. The effects of a single unit air convective drying of 1 kg product on greenhouse gas emissions (GGE) of different types of power plants (wind, solar, hydroelectric, and geothermal) were investigated. Present findings revealed that while the greatest GGE were obtained from the geothermal power plant, the lowest values were obtained from the wind power plant. Besides, increasing CO2 emissions were encountered with increasing drying time and sample thickness. Additionally, CO2 emissions had a decreasing trend at higher temperatures.