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Experimental Validation of R-474A as a Drop-in Replacement for R-454C

R-474A: the safe, ultra-low GWP alternative refrigerant. Experimental validation in R-454C hydronic heat pumps aims to confirm first simulations, offering a reliable solution where R-290 use is limited by safety or regulation.

When & Where

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Tue, 10/28/2025, 14:00 - 14:20

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Hall Brussel

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Details

  • Format:

    Lecture

  • Language:

    English

Session description

As the RACHP sector accelerates the transition to low-GWP refrigerants, the challenge remains to identify safe, efficient, and regulatory-compliant alternatives that can be deployed across a wide range of applications. While R-290 is increasingly favored for its ultra-low GWP, its A3 flammability classification significantly limits its use in certain residential and commercial settings due to safety concerns and building code restrictions.
This study focuses on R-474A, a newly developed ultra-low GWP, A2L-classified refrigerant, as a complementary solution to R-290, particularly in applications where safety or regulatory constraints make the use of hydrocarbons impractical or prohibited. Following promising computational modeling and system-level performance simulations, a dedicated ...