Electrical power production from low-grade waste heat using a thermally regenerative ethylenediamine battery

Onofrio Scialdone, Adriana D'Angelo, Christopher A. Gorski, Bruce E. Logan, Mohammad Rahimi

Risultato della ricerca: Article

22 Citazioni (Scopus)

Abstract

Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was explored here. The power density of the ethylenediamine-based battery (TRENB) was 85 ± 3 W m2-electrode area with 2 M ethylenediamine, and 119 ±4Wm2 with 3 M ethylenediamine. This power density was 68% higher than that of TRAB. The energy density was 478 Wh m3-anolyte, which was ~50% higher than that produced by TRAB. The anodic coulombic efficiency of the TRENB was 77 ± 2%, which was more than twice that obtained using ammonia in a TRAB (35%). The higher anodic efficiency reduced the difference between the anode dissolution and cathode deposition rates, resulting in a process more suitable for closed loop operation. The thermal-electric efficiency based on ethylenediamine separation using waste heat was estimated to be 0.52%, which was lower than that of TRAB (0.86%), mainly due to the more complex separation process. However, this energy recovery could likely be improved through optimization of the ethylenediamine separation process.
Lingua originaleEnglish
pagine (da-a)45-50
Numero di pagine6
RivistaJournal of Power Sources
Stato di pubblicazionePublished - 2017

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ethylenediamine
waste heat
Waste heat
Ammonia
electric batteries
ammonia
grade
radiant flux density
electricity
Deposition rates
Cathodes
Electricity
cathodes
recovery
Ligands

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology

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Electrical power production from low-grade waste heat using a thermally regenerative ethylenediamine battery. / Scialdone, Onofrio; D'Angelo, Adriana; Gorski, Christopher A.; Logan, Bruce E.; Rahimi, Mohammad.

In: Journal of Power Sources, 2017, pag. 45-50.

Risultato della ricerca: Article

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abstract = "Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was explored here. The power density of the ethylenediamine-based battery (TRENB) was 85 ± 3 W m2-electrode area with 2 M ethylenediamine, and 119 ±4Wm2 with 3 M ethylenediamine. This power density was 68{\%} higher than that of TRAB. The energy density was 478 Wh m3-anolyte, which was ~50{\%} higher than that produced by TRAB. The anodic coulombic efficiency of the TRENB was 77 ± 2{\%}, which was more than twice that obtained using ammonia in a TRAB (35{\%}). The higher anodic efficiency reduced the difference between the anode dissolution and cathode deposition rates, resulting in a process more suitable for closed loop operation. The thermal-electric efficiency based on ethylenediamine separation using waste heat was estimated to be 0.52{\%}, which was lower than that of TRAB (0.86{\%}), mainly due to the more complex separation process. However, this energy recovery could likely be improved through optimization of the ethylenediamine separation process.",
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T1 - Electrical power production from low-grade waste heat using a thermally regenerative ethylenediamine battery

AU - Scialdone, Onofrio

AU - D'Angelo, Adriana

AU - Gorski, Christopher A.

AU - Logan, Bruce E.

AU - Rahimi, Mohammad

PY - 2017

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N2 - Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was explored here. The power density of the ethylenediamine-based battery (TRENB) was 85 ± 3 W m2-electrode area with 2 M ethylenediamine, and 119 ±4Wm2 with 3 M ethylenediamine. This power density was 68% higher than that of TRAB. The energy density was 478 Wh m3-anolyte, which was ~50% higher than that produced by TRAB. The anodic coulombic efficiency of the TRENB was 77 ± 2%, which was more than twice that obtained using ammonia in a TRAB (35%). The higher anodic efficiency reduced the difference between the anode dissolution and cathode deposition rates, resulting in a process more suitable for closed loop operation. The thermal-electric efficiency based on ethylenediamine separation using waste heat was estimated to be 0.52%, which was lower than that of TRAB (0.86%), mainly due to the more complex separation process. However, this energy recovery could likely be improved through optimization of the ethylenediamine separation process.

AB - Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was explored here. The power density of the ethylenediamine-based battery (TRENB) was 85 ± 3 W m2-electrode area with 2 M ethylenediamine, and 119 ±4Wm2 with 3 M ethylenediamine. This power density was 68% higher than that of TRAB. The energy density was 478 Wh m3-anolyte, which was ~50% higher than that produced by TRAB. The anodic coulombic efficiency of the TRENB was 77 ± 2%, which was more than twice that obtained using ammonia in a TRAB (35%). The higher anodic efficiency reduced the difference between the anode dissolution and cathode deposition rates, resulting in a process more suitable for closed loop operation. The thermal-electric efficiency based on ethylenediamine separation using waste heat was estimated to be 0.52%, which was lower than that of TRAB (0.86%), mainly due to the more complex separation process. However, this energy recovery could likely be improved through optimization of the ethylenediamine separation process.

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