Next-Generation Low-GWP Refrigerant Line-Set Mass Addition and Velocity Gradient Benchmark Dataset: 816 Thermodynamic Test Configurations

<p dir="ltr">This benchmark dataset contains 816 deterministic calculation points modeling liquid refrigerant mass addition and hydrostatic elevation lift penalties for residential and commercial unitary split systems. Evaluated refrigerants include next-generation low-GWP A2L blends (R-454B, R-32) and legacy R-410A across standardized ASTM B280 liquid line diameters (1/4", 5/16", 3/8", 1/2"), line-set lengths from 15 ft to 150 ft, and vertical elevation risers up to 45 ft.</p><p><br></p><p dir="ltr">Each scenario computes net adder mass (oz), total operating charge (oz, lbs, kg), and flags ASHRAE Standard 15 oil return trap requirements.</p><p dir="ltr">Reference Computational Engine: hvaclogic.org/calculators/refrigerant-charge-calculator</p><p dir="ltr">Technical Methodology: hvaclogic.org/methodology</p><p dir="ltr">Companion Research Paper: hvaclogic.org/research</p>