R-32 vs. R-454B: Which is the best R-410A Replacement?

R-32 and R-454B are both LGWP HFO refrigerant replacements for R-410A in the same type of applications; however, because of their distinct properties, one may be better suited for some applications than the other.
This paper helps with the decision criteria.

Description

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Speaker

south_east

When & Where

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Thu, 10.10.2024, 10:20 – 10:40

place

Hall 4A / 4A-419

Details

Format: Lecture

Language: English

Description

The use of many HFCs currently used in refrigerating systems has come under increased scrutiny and is being questioned due to their higher GWP. There is currently a worldwide effort to reduce and/or eliminate high GWP refrigerants and to replace them with suitable low GWP alternative options that are also efficient, safe, cost effective and well suited for the intended application.
One such refrigerant being replaced is R-410A, which is the most common refrigerant used today in residential, light commercial and other A/C applications. R-410A is currently being phased down in several areas of the world and will be eventually phased out completely. This will leave a need for short/long term replacements to fill its void. This presentation will review the unique properties of two of the leading contenders today, R-32 and R-454B, as compared to each other and to R-410A. It will highlight the differences between these two refrigerants that make either of them a better candidate match for a particular system, condition, A/C OEM need and market circumstance including compliance with local regulatory mandates. It will review their thermodynamic properties, performance, and suitability for the application. It will also provide an overview of their capacity, efficiency, and other critical values in a typical A/C cycle using cycle simulations and equipment data.
The presentation will also discuss some of the choices and trade-offs needed to be made when choosing either refrigerant. The presentation does not intend to select an overall best choice, but to equip the A/C OEM with the tools and understanding to select the best choice for their situation.