Potential of the Guaraní’s Aquifer System geothermal parks effluent for the heating of greenhouses

Authors

  • Julián Andrés Ramos Departamento del Agua, Centro Universitario Regional Litoral Norte sede Salto, Universidad de la República, Salto, Uruguay
  • Carlos Nicolás Blanco Departamento del Agua, Centro Universitario Regional Litoral Norte sede Salto, Universidad de la República, Salto, Uruguay
  • Pablo Andrés Gamazo Departamento del Agua, Centro Universitario Regional Litoral Norte sede Salto, Universidad de la República, Salto, Uruguay
  • Celmira Saravia Facultad de Agronomía, Centro Universitario Regional Litoral Norte sede Salto, Universidad de la República, Salto, Uruguay
  • Romina de Souza Facultad de Agronomía, Centro Universitario Regional Litoral Norte sede Salto, Universidad de la República, Salto, Uruguay
  • Jorge Eduardo de los Santos Facultad de Ingeniería, Universidad de la República., Montevideo, Uruguay
  • Oscar Bentancur Facultad de Agronomía, Centro Universitario Regional Litoral Norte sede Paysandú, Universidad de la República, Paysandú, Uruguay
  • Álvaro Ferreira Campo Azul, Salto, Uruguay

DOI:

https://doi.org/10.26461/14.05

Keywords:

Geothermal, heating, greenhouses, tomato

Abstract

In Uruguay, the availability of low enthalpy geothermal energy is associated with the area where the Guaraní Aquifer System is confined, in the northwest of the country. The main uses of thermal water are recreational and balneotherapy, which generate an effluent with high temperatures that is discharged to the environment. In this article we evaluate the use of this effluent for the heating of greenhouses and present the thermal balance of greenhouses with and without heating. In addition, the energy obtained from the effluent is compared to conventional heating system. Results shows that the greenhouses heated with low enthalpy geothermal energy represent an electrical energy saving of 4,46 kW.h/m2 or 0,61 l/m2 of diesel in the month of maximum energy demand. We also elucidate the opportunity of an action that has been outlined for frost controlling, improving tomato fruit quality and reducing the environmental impact of the thermal effluent on the environment.

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Published

2017-11-13

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Section

Articles

How to Cite

Potential of the Guaraní’s Aquifer System geothermal parks effluent for the heating of greenhouses. (2017). INNOTEC, 14 jul-dic, 31-36. https://doi.org/10.26461/14.05

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