Measurement of Transport Properties for Selected Siloxanes and Their Mixtures Used as Working Fluids for Organic Rankine Cycles

作者：Abbas Rima; Ihmels E Christian; Enders Sabine; Gmehling Juergen^*

来源：Industrial & Engineering Chemistry Research, 2011, 50(14): 8756-8763.

DOI：10.1021/ie2002632

Thermal conductivities have been measured for three linear siloxanes [hexamethyl disiloxane (MM), octamethyltrisiloxane (MDM), decamethyltetrasiloxane (MD(2)M)], two cyclic siloxanes [octamethylcyclotetrasiloxane (D(4)), decamethylcyclopentasiloxane (D(5))], and a mixture of SO mass % MDM + 50 mass % MD(2)M in the temperature range from 290 to 520 K and the pressure range from 500 to 10000 kPa using the transient hot wire method and correlated with a temperature pressure thermal conductivity relationship. Moreover, the thermal conductivities at atmospheric pressure were measured for MM, D(4), D(5), and MD(2)M. The data were compared with the available data from the literature for four compounds. Additionally, the viscosities of the five siloxanes were measured in the temperature range from 238 to 378 K at atmospheric pressure using a rotational Stabinger viscometer.

• 出版日期2011-7-20