Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Ryo Akasaka"'
Autor:
Ryo AKASAKA
Publikováno v:
Journal of Thermal Science and Technology, Vol 5, Iss 2, Pp 200-205 (2010)
The viscosity of 2,3,3,3-tetrafluoropropene (HFO-1234yf) has been successfully correlated with the extended corresponding states (ECS) model for transport properties. The thermodynamic equation of state developed in our earlier work forms the basis o
Externí odkaz:
https://doaj.org/article/a8fc44b6be52405fb97a3689b68f4a9a
Autor:
Ryo AKASAKA
Publikováno v:
Journal of Thermal Science and Technology, Vol 4, Iss 1, Pp 159-168 (2009)
This study presents a simple multi-fluid model for Helmholtz energy equations of state. The model contains only three parameters, whereas rigorous multi-fluid models developed for several industrially important mixtures usually have more than 10 para
Externí odkaz:
https://doaj.org/article/111f373c96ec46ddad0435c84b9fbe68
Autor:
Ryo AKASAKA
Publikováno v:
Journal of Thermal Science and Technology, Vol 3, Iss 3, Pp 442-451 (2008)
This paper discusses iterative calculation methods to determine the saturation state of pure fluids by using Helmholtz energy equations of state. The commonly used method is based on the successive substitution approach. This method is simple, but re
Externí odkaz:
https://doaj.org/article/738b5ca409e6445b81bbc842fdeed582
Publikováno v:
International Journal of Thermophysics. 44
Publikováno v:
Journal of Chemical & Engineering Data. 67:346-357
Autor:
Ryo Akasaka, Katsuyuki Tanaka
Publikováno v:
International Journal of Refrigeration. 131:61-67
The experimental determination of the critical parameters was performed for R1233zd(E) and R1224yd(Z) by the visual observation of the meniscus. The first measurement was made for R1224yd(Z) to validate the experimental apparatus and procedure used i
Publikováno v:
International Journal of Refrigeration. 131:33-40
New universal parameters of the extended corresponding states (ECS) model are presented for hydrofluoroolefin (HFO) refrigerants. The ECS model employing the universal parameters successfully represents the saturation properties. For well-studied HFO
Publikováno v:
International Journal of Thermophysics. 43
Mixing R13I1 with flammable or weakly-flammable refrigerants is an approach to reduce both their flammability and global warming potential(GWP); however, thermodynamic property data of mixtures containing R13I1are currently scarce. In this work, expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f56ed5a13330ff7185ed1fda3c94a9ee
https://doi.org/10.21203/rs.3.rs-1872448/v1
https://doi.org/10.21203/rs.3.rs-1872448/v1
Autor:
Eric Lemmon, Ryo Akasaka
Publikováno v:
International Journal of Thermophysics. 43