| Full text | |
| Author(s): |
Mosquim, Rafael Fernandes
;
de Oliveira Junior, Silvio
;
Keutenedjian Mady, Carlos Eduardo
Total Authors: 3
|
| Document type: | Journal article |
| Source: | JOURNAL OF CLEANER PRODUCTION; v. 197, p. 13-pg., 2018-10-01. |
| Abstract | |
Exergy analysis was applied to the state of Sao Paulo, Brazil, and exergy efficiencies were obtained for its constituent sectors, the Industrial, Rural, Commercial & Public, Residential and Transportation, from most to least efficient. Overall exergy efficiency was found to be 28.3%, a value which lies within the range of similar studies. To indicate the usefulness of the exergy approach, some measures were tested based on exergy efficiency values. LED lamps to improve sectorial exergy efficiencies by lowering consumption, but the overall impact is low. Solar water heaters can mitigate the mismatch in quality between supply and demand, in the Residential sector, by harnessing power from an inexhaustible renewable source. For the Transportation sector, with technological constraints regarding similar internal combustion engine efficiencies, improvements were tested on a total carbon dioxide equivalent emission. Gasoline substitution for ethanol was the better option, and fleet electrification produced a wide range of results due to battery production and variability in emission factors from the Utility sector. (C) 2018 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 15/22883-7 - Thermodynamics analysis applied to biological systems |
| Grantee: | Carlos Eduardo Keutenedjian Mady |
| Support Opportunities: | Regular Research Grants |