naa a22 4500 51075838X CHVBK 20180411083130.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1134/S0869864313010137 doi (NATIONALLICENCE)springer-10.1134/S0869864313010137 Speed of sound in the gaseous refrigerant R-409A [Elektronische Daten] [S. Komarov, S. Stankus] Speed of sound in the gaseous refrigerant R-409A has been measured by ultrasonic interferometer in the temperature range from 293 to 373 K and at pressures from 0.05 to 0.58 MPa. The experimental uncertainties of the temperature, pressure, and speed of sound measurements were estimated to be within 20 mK, 4 kPa, and 0.1-0.2 %, respectively. On the basis of the obtained data, the isobaric molar heat capacity was calculated for the ideal-gas state. A comparison of the obtained results with the calculated speed of sound on the basis of REFPROP program was carried out. S.G. Komarov and S.V. Stankus, 2013 speed of sound nationallicence ideal-gas heat capacity nationallicence refrigerant R-409A nationallicence vapor nationallicence method of ultrasonic interferometer nationallicence Komarov S. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia aut Stankus S. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia aut Thermophysics and Aeromechanics Nauka/Interperiodica 20/1(2013-02-01), 125-127 0869-8643 20:1<125 2013 20 11510 https://doi.org/10.1134/S0869864313010137 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0869864313010137 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Komarov S. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Stankus S. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia aut NATIONALLICENCE 773 0- Thermophysics and Aeromechanics Nauka/Interperiodica 20/1(2013-02-01), 125-127 0869-8643 20:1<125 2013 20 11510 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer