On the regeneration of thermally regenerative ammonia batteries
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In the past few years, thermally regenerative ammonia battery (TRAB) has been proposed as an effective tool to recover waste heat at temperatures below 130 °C. Most of the literature available is devoted to the power production step, with less attention being given to the regeneration step (e.g. the removal of ammonia from the anolyte). In this paper, the TRAB is analyzed with particular attention to the regeneration step and to the study of various generation of energy-regeneration cycles. It was shown that approximately 90 °C is necessary for the regeneration step due to the fact that ammonia is present in the anolyte mainly as a complex. Various cycles were performed with success, demonstrating the efficacy of the proposed regeneration step.
KeywordsThermally regenerative ammonia battery TRAB TREC Regeneration Waste heat Ammonia–copper complex
This study was supported by the European Commission through the project H2020-LCE-2014-1-640667 - Conversion of Low Grade Heat to Power through closed loop Reverse Electro-Dialysis (RED-Heat-to-Power). Authors would like to thank Miss Urvi Patel for help proofreading the manuscript.
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Conflict of interest
The authors declare that they have no conflict of interest.
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