On-Tube Condensation Heat Transfer Coefficients for R450A and R513A Refrigerants

Local condensation heat transfer coefficients for refrigerant blends R450A and R513A were measured on a horizontal stainless-steel tube. Experiments were conducted at saturation temperatures of 35°C and 40°C with varying subcoolings and heat fluxes, and flow was visualized. The dataset was created by Michael Akinseloyin and last updated on May 5, 2026.

Use Cases

• Validate condensation models based on measured heat transfer coefficients.
• Compare heat transfer performance between R450A and R513A refrigerants based on experimental data.
• Analyze the effect of condensed film thickness on heat transfer based on radial position measurements.
• Study the stability of refrigerant blends over time based on comparisons between new and stored samples.

Strengths

• Experimental conditions are precisely defined, including tube diameter (15.875 mm), saturation temperatures (35°C and 40°C), and heat flux range (5–16 kW/m²).
• Data includes validation against Nusselt's correlation for on-tube condensation.
• Analysis includes comparison between new and stored refrigerant samples and composition checks via gas chromatography.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is a single MP4 video file (199.5 MB); the structure of the contained data is unclear.

Provenance

Source

figshare

Collection Method

Experimental measurement and video recording.

Freshness

Last updated 2026-05-05 13:26:44; freshness should be verified.