News International Sugar Journal

Converting low grade waste heat into electricity [Registered]

Vast amounts of excess heat are generated by industrial processes including sugar factories and refineries. Exploiting this wasted energy has received significant research interest. Most efforts have focused on thermoelectric devices – solid-state materials that can produce electricity from a temperature gradient – but the efficiency of such devices is limited by the availability of materials. Now researchers at Stanford University and the Massachusetts Institute of Technology have found a new alternative for low-temperature waste-heat conversion into electricity – that is, in cases where temperature differences are less than 100°C. The new approach is described in a study published in…

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