This invention relates to a spiral heat exchanger including a spiral body formed by at least one spiral sheet wound to form a first spiral-shaped flow channel for a first medium, and a second SPIRAL HEAT EXCHANGERS - thermopediaHeat transfer data for spiral heat exchangers is empirically correlated using a conventional Dittus-Boelter type relationship for turbulent flow. A channel curvature component is added in order to take into account the somewhat improved heat transfer generated by secondary flow effects. The equation takes the following form:(1)
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