In the upgrade process, the industry is concerned about the four elements.
1. environmental protection. ODP value and GWP value as a basis for measurement.
2. performance. There are energy efficiency standards.
3. safe. Avoid flammability and toxicity.
Cost. Consider the compatibility with existing equipment from the perspective of commercial applications and evaluate conversion costs.
HFO-1234ze, HFO-1234yf and HFO-1233zd in the fourth generation fluorinated product HFO were low due to zero ODP, low GWP, low toxicity and nonvolatile organic compounds (non-VOC) in the process of finding HFC substitutes, HFO-1234yf and its blends are mainly used in the refrigeration field, especially automotive air conditioning refrigeration; HFO-1234ze and its mixture has been used as refrigerant, aerosol and so on. Propellant, gaseous blowing agent; HFO-1233zd has been used for polyurethane foam insulation materials, foaming agent, centrifugal chillers refrigerant, precision cleaning solvents. As a result of a wide range of applications, here only on the efficacy of some common areas to compare, in order to understand how to upgrade the environmental protection of environmental protection, performance, safety and cost of the four elements.