Spiral unit November 1st 2007 Alfa Laval's ALSHE LTL range of spiral heat exchangers are suitable for duties such as heating, cooling and heat recovery in liquid/liquid applications. The range comprises seven compact models. Designed for thermal efficiency, the spiral heat exchanger consists of two concentric spiral flow channels. The hot medium generally flows from the centre to the periphery of the unit, while the cold medium flows in the opposite direction. This counter-current is said to ensure maximum heat transfer between the two media, providing close temperature approach and temperature crosses. The use of single channels is also said to reduce the risk of fouling and clogging and bypassing. More articles from Alfa Laval Limited: |