نتایج جستجو برای: heat measurement
تعداد نتایج: 636911 فیلتر نتایج به سال:
The reliability of microelectronic devices is largely dependent on electronic packaging, which includes heat removal. The appropriate packaging design therefore necessitates precise knowledge of the relevant material properties, including thermal resistance and thermal conductivity. Thin materials and high conductivity layers make their thermal characterization challenging. A steady state measu...
Heat transfer coefficient and thermal efficiency of γ-Al2O3/water nanofluids flowing through a double tube heat exchanger were experimentally investigated. The nanoparticles were well dispersed in distilled water at 0.05–0.15 %vol. A large number of experiments were performed at different fluid flow rates under turbulent flow regime (18,000<Re<40,000) and various nanofluid...
This paper presents a platform for power autonomous wireless energy meter device using piezoelectric energy harvesters. This device can be mainly used for measuring the share of heat energy consumption in a fair manner in building complex with central heat energy system. In the suggested device, the piezoelectric energy harvester is also used as a flow-meter to reduce the power consumption of t...
SMITN, E. NORBERT. Cutaneous heat fZow during heating and cooZing in Alligator mississipiensis. Am. J. Physiol. 230(S): 12054210. 1976. -Direct in vivo measurement of heat flow across the skin of the American alligator (AlZigator mississipiensis) showed increased heat flow during warming. Mean values at 25OC during warming (15-35°C) in air (airspeed 300 cm/s) were 17.9 t 1.2 SE Cal/cm” per h (m...
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