Abstract
The purpose of this paper is to present applications of the^NANMAC erodingtype thermocouples to record temperature histories of the surfaces, which take part in the heat exchange during the compression cycle. These thermocouples have a very small heat capacity and a short time constant. Additionally, similar measurements were taken using a thin film metal resistor. The experimental stand is equipped with a single cycle reciprocating compressor - especially adopted for the purpose of this work. The thermal conditions of the compression process in the compressor are well defined. This enables to repeat exactly experiments and comparing measurement methods. The paper presents measurement results of the surface temperature time histories of the cylinder head. The method of the numerical processing of these signals as well as the calculation of the related heat fluxes on the surface are also presented and discussed. Results obtained by measurements with eroding thermocouple are compared with those taken by thin film metal resistor. All experimental data were processed numerically in order to exclude the noise of the measurement circuits.
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