Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
A First Approach for an Exergy Analysis of the Human Heart With a Pathology
Submission Author:
Matheus Leone Borges , SP
Co-Authors:
Matheus Leone Borges, Laryssa Abdala, Silvio de Oliveira Junior, Carlos Eduardo Keutenedjian Mady
Presenter: Matheus Leone Borges
doi://10.26678/ABCM.ENCIT2018.CIT18-0520
Abstract
One can notice the versatility of the Second Law of Thermodynamics by the constant outbreak of its principles' new applications. Among them, one of the most inquisitive is its use on living organism analysis, in all levels of organization. One of the highlights in the field is the application of exergy analysis to human organs, given that pathologies can greatly modify the destroyed exergy of the heart, for instance. The aim of these type of analyses is to help medical diagnosis. Bearing this in mind, the present work develops a thermodynamic model of the heart, considering the phenomenological behaviour of the circulatory system. Therefore, pressure volume curves of the left and right ventricles are predicted, being the input of the analysis. Moreover, data for healthy and hypertensive subjects, found on medical literature were used as a validation of the model. From this point it was possible to apply the First Law of Thermodynamics and exergy analysis for both conditions: healthy and unhealthy. Results may indicate a higher destroyed exergy when the subject is not healthy, even with no significant variations in exergy efficiency.
Keywords
Biothermodynamics, Heart, Second Law of Thermodynamics
