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Advances in Heat Transfer Engineering

ISBN:
1-56700-198-1 (Imprimer)

NON-STATIONARY HEAT AND MASS EXCHANGE IN A TRACHEA OF HUMAN LUNGS

Konstantin M. Aref'ev
St. Petersburg State Polytechnic University, 29 Politekhnicheskaya Str., St. Petersburg, 195251, Russia

Evgeny D. Fedorovich
St. Petersburg State Polytechnic University, 29 Politekhnicheskaya Str., St. Petersburg, 195251; Central Boiler and Turbine Institute, St. Petersburg, Russia

Alecsander Hrushchenko
Saint Petersburg State Polytechnical University, 29 Polytechnicheskaya str., 195251, St. Petersburg, Russia

Résumé

Numerical calculations of heat exchange and mass exchange in a trachea of human lung are carried out. As against other published works it is taken into account time-variable processes, connected with change of inhalings and exhalings, change-ability of air velocities (flow rates). Fluctuations of temperature of trachea walls are calculated.