In a recent study, Klausner et al. [1] have described a diffusion driven process for desalinating seawater at low temperatures. The main advantage of the diffusion driven desalination (DDD) process is that low thermodynamic availability waste heat may be used to drive the process. When low pressure condensing steam from a 100 MW power plant supplies the heat to drive the DDD process, a fresh water production rate of 20 million gallons per day is feasible. This paper describes the computational procedure used to size the diffusion tower for a specified throughput.

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