The effect of ambient temperature fluctuation on the performance of geothermal power plants
by Efstathios E. Michaelides, Dimitrios N. Michaelides
International Journal of Exergy (IJEX), Vol. 8, No. 1, 2011

Abstract: Seasonal and diurnal temperature fluctuations have significant effects on cooling water temperature and on the condenser temperature. The power produced by plants that utilise a low temperature resources, such as geothermal units, are more susceptible to ambient temperature fluctuations than conventional power plants. An exergy analysis was performed to evaluate the effect of ambient temperature fluctuations on the work output of two typical geothermal units. Parametric studies were performed to record the daily and annual variance of the power produced by such units. The results show that the naturally occurring temperature changes result in more than 20% power fluctuations.

Online publication date: Tue, 30-Nov-2010

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Exergy (IJEX):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email