Czasopismo | ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA | Rocznik 2011 - zeszyt 3

Sensor for the measurement of combustion heat

ZBIGNIEW MAGOŃSKI

nr katalogowy: 58402

Fluid fuels are widely used for motor powering, heating and cooking. Possibility of verification the quality of fuels is of paramount importance because fuel quality directly influences on consumption, and this way on customer charges. On the other hand, evaluation the quality of fuels, especially fuel heat energy, is a long time consuming process, which can be completed at laboratory site with a specific equipment. Proposed sensor can be a foundation for construction of simple portable instrument, which can be considered as an alternative to the expensive and bulky bomb calorimeter. Method of measurement The principle of measurement is explained in Fig. 1. A small volume stable flame is maintained between two ceramic plates, which temperature is being controlled by two thin film platinum resistors deposited on the both ceramic plates. These resistors serve as heaters and temperature sensors. The resistors are connected to electronic circuitry, which maintains a constant temperature of the both ceramic plates regardless of external or internal conditions. It is also assumed that the both ceramic plates display sufficiently high thermal conductivity that the same single value of temperature can be considered for each small portion of both ceramic plates. The temperature of both ceramic plates is maintained at constant temperature level above 800°C. High temperature of combustion zone is essential for performance, because the flame is not quenched in the vicinity of hot ceramic plates and thus a stable burning process can be maintained very close to the ceramic plates, so, the heat exchange factor can be improved. As the additional amount of fuel enters the combustion zone, and is being burned additional amount of heat is produced. That heat flux mostly in form of infrared radiation is absorbed by the ceramic plates. In response, in order to maintain the constant temperature of ceramic plates, the control circuit decreases t[...]

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e-Publikacja (format pdf) - nr 58402 "Sensor for the measuremen..." licencja: Osobista Produkt cyfrowy	10.00 zł

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ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA - e-zeszyt (pdf) 2011-3 licencja: Osobista Produkt cyfrowy	35.00 zł

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ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA - papierowa prenumerata roczna	528.00 zł brutto 488.89 zł netto 39.11 zł VAT (stawka VAT 8%)
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ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA - PAKIET prenumerata PLUS (Prenumerata papierowa + dostęp do portalu sigma-not.pl + e-prenumerata)	636.00 zł brutto 588.89 zł netto 47.11 zł VAT (stawka VAT 8%)

636.00 zł

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2011-3

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