Vertical phase separation of conjugated polymer and fullerene bulk heterojunction films induced by high pressure carbon dioxide treatment at ambient temperature

2012 ◽  
Vol 14 (23) ◽  
pp. 8313 ◽  
Author(s):  
Ryo Kokubu ◽  
Yang Yang
2019 ◽  
Vol 100 ◽  
pp. 00005
Author(s):  
Artur Bieniek ◽  
Łukasz Mika ◽  
Jan Kuchmacz

In response to international regulations, natural refrigerants such as carbon dioxide are more and more frequently used in the refrigeration industry. Due to thermodynamic properties, R-744 is used in the transcritical cycle as an individual refrigerant. In the hereby article, high pressure of CO2 and air temperature values were analysed. The measurements were conducted on the gas cooler side and involved external air temperature values in the summer period between 1 June to 30 September 2018. The “Booster” installation was used in one of Polish supermarkets. Correlations required to determine the optimal pressure of carbon dioxide depending on ambient temperature were presented in the article. The equations presented hereby allowed to maximize the energy efficiency ratio. An optimal high pressure for one of the correlations from literature was calculated on the basis of the measurement of ambient temperature. Actual and optimal pressure values of carbon dioxide were compared in the analysed period of time.


2021 ◽  
Vol 31 (1) ◽  
pp. 26-31
Author(s):  
Taku AIDA ◽  
Hiroki SAKAI ◽  
Shinichi TOKUNAGA ◽  
Tanjna SHARMIN ◽  
Kenji MISHIMA

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3484-3494
Author(s):  
Sumarno ◽  
Prida Novarita Trisanti ◽  
Bramantyo Airlangga ◽  
Novi Eka Mayangsari ◽  
Agus Haryono

Cellulose processing by a hydrothermal process as well as in combination with a sonication pretreatment under a CO2 pressurization that affects the morphology and reducing sugar products.


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