TUBE FOR A HEAT EXCHANGER WITH AN AT LEAST PARTIALLY VARIABLE CROSS-SECTION, AND HEAT EXCHANGER EQUIPPED THEREWITH

摘要

The present invention relates to a tube for a heat exchanger, wherein at least a part of the tube has a variable cross-section in longitudinal direction, wherein a cross-sectional area decreases from a maximum value close to an outer end of the tube to a minimum value close to an opposite outer end thereof. The invention further relates to a heat exchanger provided with at least one such tube and to a central heating installation and a tap water system comprising such a heat exchanger.