The thermal conductivity, thermal diffusivity, and specific heat of liquid n-pentane

The thermal conductivity and thermal diffusivity of liquid n-pentane have been measured over the temperature range from 293 to 428 K at pressures from 3.5 to 35 MPa using a transient hot-wire instrument. It was determined that the results were influenced by fluid thermal radiation, and a new expression for this effect is presented. The uncertainty of the experimental results is estimated to be better than +/-0.5% for thermal conductivity and +/-2% for thermal diffusivity. The results, corrected for fluid thermal radiation, are correlated as functions of temperature and density with a maximum uncertainty of +/-2% for thermal conductivity and +/-4% for thermal diffusivity. Derived values of the isobaric specific heat are also given.