by Andre Patenaude | May 3, 2016 | Efficiency & Refrigerant Regulations, Refrigerants
This is post number 13 of a series. Selecting the Best System – Booster Versus Cascade Versus Secondary Table 1 lists the advantages and disadvantages of cascade, transcritical, and secondary retail systems Conclusion Transcritical operation is...
by Andre Patenaude | Apr 7, 2016 | Efficiency & Refrigerant Regulations, Refrigerants
This is post number 12 of a series. Secondary Systems Figure 6 shows a simple secondary system. The high-stage system cools the liquid R744 in the secondary circuit. The R744 is pumped around the load. It is volatile, so unlike a conventional secondary fluid such as...
by Andre Patenaude | Jul 30, 2015 | Efficiency & Refrigerant Regulations, Refrigerants
This is post number seven of a series. Weighing the Advantages and Disadvantages of R744 Table 1 outlines the advantages and disadvantages of R744 as a refrigerant. The list of disadvantages appears smaller than the advantages list, but these issues should not be...