![Energies | Free Full-Text | Investigation of Heat Transfer and Pressure Drop for R744 in a Horizontal Smooth Tube of R744/R404A Hybrid Cascade Refrigeration System—Part 1: Intermediate Temperature Region Energies | Free Full-Text | Investigation of Heat Transfer and Pressure Drop for R744 in a Horizontal Smooth Tube of R744/R404A Hybrid Cascade Refrigeration System—Part 1: Intermediate Temperature Region](https://pub.mdpi-res.com/energies/energies-15-02285/article_deploy/html/images/energies-15-02285-g005.png?1647940258)
Energies | Free Full-Text | Investigation of Heat Transfer and Pressure Drop for R744 in a Horizontal Smooth Tube of R744/R404A Hybrid Cascade Refrigeration System—Part 1: Intermediate Temperature Region
Refrigerant comparison to R404A/R507A − operating conditions and system design - Refrigerant comparison to R404A/R507A − operating conditions and system design
![Walk-in freezer temp is 30°F. Suction pressure seems a bit high for R-404a, filter driers, temp has 2° degree difference, you think they're clogged up? : r/refrigeration Walk-in freezer temp is 30°F. Suction pressure seems a bit high for R-404a, filter driers, temp has 2° degree difference, you think they're clogged up? : r/refrigeration](https://preview.redd.it/5efzfxpb8w091.jpg?auto=webp&s=33136fad9144c2e887d38ac4d960a33b5142e77e)
Walk-in freezer temp is 30°F. Suction pressure seems a bit high for R-404a, filter driers, temp has 2° degree difference, you think they're clogged up? : r/refrigeration
THE PERFORMANCE OF THE REFRIGERANTS R-134a, R-290, R404A, R-407c AND R-4I0A IN AIR CONDITIONERS AND REFRIGERATORS Josua P. Meyer
![2hp, R404a Ultra-low Temperature Expansion Valve Kits Is Easy To Limit Max. Evaporating Pressure And Regulate Coolant Injection - Freezer Parts - AliExpress 2hp, R404a Ultra-low Temperature Expansion Valve Kits Is Easy To Limit Max. Evaporating Pressure And Regulate Coolant Injection - Freezer Parts - AliExpress](https://ae01.alicdn.com/kf/H44d35b363e0545498f4117c75ffc5c734/2HP-R404a-ultra-low-temperature-expansion-valve-kits-is-easy-to-limit-max-evaporating-pressure-and.jpg)