The surface tension of the R290 + R600a mixture has been measured by the differential capillary-rise method. For measuring the binary system, the apparatus was modified to determine the composition of the sample. Seventeen data with a change of composition were obtained at 278.28 K. The experimental uncertainties of temperature and surface tension measurements are estimated to be within 20 mK and 0.2 mN·m-1, respectively. The present data are compared with REFPROP ver.7.0 calculations . As for composition dependence, the present data show different behavior against to REFPROP ver.7.0 calculations. Three kinds of mixing rules were tested for representing the composition dependence of the present data. It is found the simple mixing rule by mole fraction is effective for the R290 + R600a mixture.
|出版ステータス||出版済み - 1 1 2006|
|イベント||3rd Asian Conference on Refrigeration and Air-Conditioning, ACRA 2006 - Gyeongju, 大韓民国|
継続期間: 5 21 2006 → 5 23 2006
|その他||3rd Asian Conference on Refrigeration and Air-Conditioning, ACRA 2006|
|Period||5/21/06 → 5/23/06|
All Science Journal Classification (ASJC) codes