作者: Giovanni A. Longo , Claudio Zilio
DOI: 10.1007/S10765-013-1478-Z
关键词:
摘要: This paper presents measurements of the thermal conductivity and dynamic viscosity $$\mathrm{Al}_{2}\mathrm{O}_{3}$$ –ethylene glycol $$\mathrm{TiO}_{2}$$ (1 % to 3 % particle volume fraction) nanofluids carried out in temperature range from $$0\,^{\circ }$$ C $$50\,^{\circ C. The thermal-conductivity were performed by using a transient hot-disk TPS 2500S apparatus instrumented with 7577 probe (2.001 mm radius) having maximum uncertainty $$(k=2)$$ lower than 5.0 % reading. dynamic-viscosity rheological analysis rotating disk type rheometer Haake Mars II single-cone (60 mm diameter $$1^{\circ ) tested show great sensitivity fraction temperature: enhancement (with respect pure ethylene glycol) 1 % 19.5 % 9 % 29 %, respectively. exhibit Newtonian behavior all investigated ranges. relative shows weak or no increase (4 5) % 30 % 14 % to 50 %, Present experimental compared both available different researchers computational models for thermophysical properties nanofluids.