Examining the Effect of Heat Storage in a Cogeneration System

G. R. Salehi
Islamic Azad University Noshahr Branch, Noshahr, Iran

E. Taghdiri
KNToosi University of Technology, Tehran, Iran

D. Deldadeh
KNToosi University of Technology, Tehran, Iran

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp11057780

Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:5, s. 780-787

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Publicerad: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


Small power plants of cogeneration of power; heat and cooling are good solutions of increasing the efficiency of energy consumption for fossil fuels in order to protect natural resources and the environment. However; at moments when heat demand is lower than the heat production of the CHP module; the excess heat has to be rejected to the environment and this fact results in waste of energy. Also; since CHP modules are basically heat driven; when heat demand is lower than a certain value; the module will be switched off just to be switched on later when heat demand increases. This cycle of switching on and off is harmful for the CHP module if it happens repeatedly. A solution is to use heat storage and an alternative control method. In this paper; a CHP system is chosen for an educational building and the design is carried out in two forms; with and without heat storage and the results are compared and judgment is made about the optimal system.


CHP; optimization; environment; heat storage


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