Carbon dioxide (CO2, or R-744) as a refrigerant seems to be making a comeback. The reasons are simple: It’s plentiful, inexpensive (about$1 per pound) and it’s accepted under environmental regulations everywhere in the world. CO2 is natural as it’s found in abundance in Earth’s atmosphere, and every animal on Earth, including the human population, replenishes the supply with every exhaled breath. So what caused CO2 to lose out as a refrigerant if it had the advantages of being cheap and plentiful? In a word, pressure. The CO2 cycle’s high-side pressure can be as high as 800 psia in a subcritical cycle. Transcritical cycles, applicable to heat pumps and other close-coupled commercial refrigeration applications, rise above the critical point (1,070 psia), and can easily reach 1,500 psia. So what’s the prognoses in jolly old Europe?

Zu antworten, dass quesion wir den cristal Ball von Adolf fragen und dann Zeichen iterpretation des Wetters dass als eine Obstructinist-Antwort, nes Papa bekommen müssen?