Microchannel coil

Field tests for evaluating microchannel heat exchangers with variable fin pitch

Field tests for evaluating microchannel heat exchangers with variable fin pitch (VFP-MCHE) performance have been started this week. VFP-MCHE design features variable fin pitches and dimensions, tube geometries, port shapes, and the location of fins and tubes within the same heat exchanger core.

VFP-MCHE design with altered fin geometry and density for different heat exchanger sections suggest reduced airflow maldistribution effect, as well as lowered airside resistance.

To minimize the header-to-tube refrigerant flow maldistribution, cross-section areas of each tube are adjusted for a better balance of mass flux and pressure drop in tubes.

As a result of VG-MCHE research, the Lambda family of precision cooling units will be adopted to use variable geometry microchannel heat exchangers to increase overall energy efficiency and performance.

Kaltra is a world-known provider of cooling technologies and advanced cooling products for mission-critical applications, such as data centers, clean rooms, contaminant-free areas, processing plants, and other facilities where reliability and energy efficiency are key factors. Kaltra’s cooling equipment range includes precision cooling systems, air-cooled and water-cooled chillers, evaporative cooling solutionsdry coolers, and condensers.

For more information on Kaltra and its products call +49 911 715-32021
or visit www.kaltra.de