Steady versus dynamic exergy analysis: the case of an air source heat pump
by Adriana Angelotti; Paola Caputo; Giulio Solaini
International Journal of Exergy (IJEX), Vol. 11, No. 4, 2012

Abstract: Exergy analysis is often performed statically, for given system conditions and reference state. Dynamic exergy analyses, considering the variation of system operation and ambient conditions, would obviously be more time consuming. Therefore comparing the results of the two approaches helps understand when the dynamic methodology should be preferred. In this paper the yearly behaviour of a reversible Air Source Heat Pump (ASHP) is dynamically simulated with TRNSYS. At every time step the exergy delivered and consumed by the ASHP is calculated. Dynamic exergy efficiencies are then compared with steady state values and some useful considerations regarding the differences are performed.

Online publication date: Tue, 13-Nov-2012

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 subs@inderscience.com