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Título del libro: Solar Energy: Research, Technology And Applications
Título del capítulo: Solar energy upgrading by thermodynamic cycles with steam absorption in aqueous solutions

Autores UNAM:
WILFRIDO RIVERA GOMEZ FRANCO;

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Autores externos:

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Idioma:
Inglés

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Año de publicación:
2008

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Resumen:

The present chapter of the book presents the experiences that we had in the Central part of México, with latitude of 19 °, in that location the possibility of collecting solar energy exists. The collected solar energy has moderate levels for several uses, mainly at levels of residential use for sanitary services. Nevertheless, the solar energy can increases its thermal level 50 °C plus from the actual value to be useful for industrial processes, as well as the collected power can be used to replace compressors with the objective to provide conditioned air. The main problem that absorption technology has had in previous years is the use of high pressures. In this chapter we show two potential systems that use low pressures, avoiding so the danger to use very high pressures. On the other hand, the proposed aqueous solutions have proven to diminish the emissions of CO2 to the atmosphere in two orders of magnitude, reason why the use of thermodynamic cycles to extend the potential uses of the solar energy concludes in two types: for processes that require 120 °C or higher, and acclimatization of spaces that require 10 °C or lower. Finally, in this chapter, we are showing validated models with experimental data for these closed thermodynamic cycles, in which the main working fluid is the water and the absorbent is an aqueous solution of salts. The water used in these systems does not have contact with the environs and the aqueous solutions of lithium either, reason why poisonous effects or contamination in the processes do not exist to which they settle. The efficiency of these systems, allows to obtain energy for sustainable and environmentally friendly processes with a minimum contribution of energy for the circulation of the fluids only. © 2008 by Nova Science Publishers, Inc. All rights reserved.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9781604567397
Editorial:
Nova Science Publishers, Inc. Nombre de la publicación:
Solar energy upgrading by thermodynamic cycles with steam absorption in aqueous solutions
Página inicial:
277
Página final:
316

Tipo de producto:
Capítulo de un Libro