Exergy costs analysis of groundwater use and water transfers

摘要: Abstract In the search for new alternatives to meet water demands, it is interesting analyze cost of using different from those such as desalination and pumping. The exergy analysis can be a useful tool estimate costs function its energy efficiency relative abundance with respect existing resources in their surroundings. This study proposes methodology assessing groundwaters transfers surplus basins within perspective. An equation assess these proposed. System boundaries are first identified assessment input output currents system values design certain operating conditions. Next, an supply depending on operational parameters proposed, examples. Pumping efficiency, altitude gap flow among other features introduced calculations characteristics parameters. developed examples, unit go 1.01 2.67, 1 4.06 case transfers. Maximum values, expected this perspective, found at high pumped/transferred flows pumping levels and/or low if required.