Abstract
The maximum work from an electric battery in a finite time interval tC derived in a recent article in this journal is unreasonable. The reason is discussed in detail and the genuine maximum work is given. This shows that the result derived in the recent article is suitable only in the case tC→infinite.The maximum work from an electric battery in a finite time interval 0→tC was derived in a recent article in this journal [1]. It relied on a simple battery model as shown in Fig. 1. The non dimensionalized maximum work output derived by Bejan and Dan [1] is given by
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