Accuracy of tracer stimulus response experiments in laminar flows

0382230 - ÚT 2013 RIV US eng J - Článek v odborném periodiku
Chlup, Hynek - Novotný, Pavel - Žitný, R.
Accuracy of tracer stimulus response experiments in laminar flows.
International Journal of Heat and Mass Transfer. Roč. 55, 23-24 (2012), s. 6458-6462. ISSN 0017-9310. E-ISSN 1879-2189
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: residence time distribution * tracer injection * laminar convective dominated flow
Kód oboru RIV: JB - Senzory, čidla, měření a regulace
Impakt faktor: 2.315, rok: 2012
http://www.sciencedirect.com/science/article/pii/S001793101200470X

Experimental identification of the residence time distribution (RTD) characteristics for steady (or pulsatile) flows using a stimulus response technique, for example using tracers, is very demanding. The accuracy of the RTD characteristics depends on the precise distribution of the injected tracer via the injection modulus, and also on appropriate design of the detector. The performance of various modifications of the injection modulus and of the conductivity probe is assessed using the simplest possible system – a straight pipe and fully developed laminar flow. This comparison is made via the deviation of the experimental values for the time of the first appearance and the mean residence time from the in theoretical values. We find the optimal configuration of the injection modulus and the conductivity probe for laminar and convection-dominated flow in a straight rigid pipe.
Trvalý link: http://hdl.handle.net/11104/0212515