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Modeling of the heat loss in a thermal sensor for water made of NTC thick film segmented thermistors
dc.creator | Luković, Miloljub | |
dc.creator | Nikolić, Maria Vesna | |
dc.creator | Radojcic, Branka M | |
dc.creator | Aleksić, Obrad | |
dc.date.accessioned | 2022-04-05T14:41:31Z | |
dc.date.available | 2022-04-05T14:41:31Z | |
dc.date.issued | 2013 | |
dc.identifier.isbn | 978-303785616-1 | |
dc.identifier.issn | 1013-9826 | |
dc.identifier.uri | http://rimsi.imsi.bg.ac.rs/handle/123456789/647 | |
dc.description.abstract | NTC thick film segmented thermistors were realized by screen printing of a low resistivity paste and conductive PdAg paste printed for electrodes. Two thick film thermistors as thermal sensors were placed in plastic tube housing connected to the water mains to form a calorimetric type of flow-meter, e.g. to measure the input water temperature and the thermistor self-heating temperature. Range constant voltage (RCV) was applied for self-heating thermistor power supply in different ranges of input water temperature. Modeling of the heat loss in the flow-meter for water was derived from heat balance equations for a self-heated thermistor in static water and in water flow conditions (static and dynamic thermistor temperature). Both temperatures (static and dynamic) were related to self-heating currents. The input water temperature was measured independently by a cold thermistor. Other parameters such as water thermal conductivity, thermistor exponential factor B and nominal thermistor resistance at room temperature were included in the thermistor heat balance equations. The logarithmic behavior of self-heating thermistors in the water flow enable modeling of heat loss as a function of static and dynamic currents related to static and dynamic thermistor temperatures. The model achieved was used in the fitting procedure of measured data of the flow-meter response. | en |
dc.publisher | Trans Tech Publications Ltd, Durnten-Zurich | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45007/RS// | |
dc.rights | restrictedAccess | |
dc.source | Materials and Applications for Sensors and Transducers Ii | |
dc.subject | self-heating thermistor | en |
dc.subject | NTC thick films segmented thermistor | en |
dc.subject | Heat loss | en |
dc.subject | flow-meter for water | en |
dc.title | Modeling of the heat loss in a thermal sensor for water made of NTC thick film segmented thermistors | en |
dc.type | conferenceObject | |
dc.rights.license | ARR | |
dc.citation.epage | + | |
dc.citation.other | 543: 334-+ | |
dc.citation.spage | 334 | |
dc.citation.volume | 543 | |
dc.identifier.doi | 10.4028/www.scientific.net/KEM.543.334 | |
dc.identifier.scopus | 2-s2.0-84876385668 | |
dc.identifier.wos | 000319023100082 | |
dc.type.version | publishedVersion |