This study discussed the effect of ribbed fin, which was suggested by authors, on enhancement heat transfer and flow characteristics fluid in a solar air heater. The fin has rectangular rib at base side surfaces fin. Thus, it can increase coefficient field heater as well extend area. simulation performed with various Reynolds numbers, relative heights, pitches rib. presence enhances performance...

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In this paper we describe a novel long-term microhotplate temperature sensor calibration technique suitable for Built-In Self Test (BIST). The microhotplate thermal resistance (thermal efficiency) and the thermal voltage from an integrated platinum-rhodium thermocouple were calibrated against a freshly calibrated four-wire polysilicon microhotplate-heater temperature sensor (heater) that is not...

The 3ω method is popular for thermal conductivity measurements. It consists of a strip heater above a substrate, and the results are usually based on approximate solutions of the heat conduction equation for simplified heating in which the heater is assumed to be a thin plate. Through numerical studies, it is found that a finite heater thickness has an effect on the value of the thermal conduct...