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Most electronic cooling devices consist of two reservoirs linked by an energy filter, which only allows high-energy electrons to transport from the cold reservoir to the hot reservoir. Here we propose a new type of cooling device, in which a cold reservoir is connected with two hot reservoirs by two energy filters and cooling is achieved by simultaneously removing high energy electrons from and injecting...
The model of a packed bed anode DCFC (direct carbon fuel cell) with molten carbonate as an electrolyte and graphite as a fuel is established to globally evaluate its performance. Thermodynamic-electrochemical analyses on the performance of the DCFC are implemented, in which the activation overpotential, ohmic overpotential, and concentration overpotential are taken as the main sources of voltage losses...
A new hybrid system mainly consists of a molten carbonate fuel cell (MCFC) and a Stirling heat engine is established, where the Stirling heat engine is driven by the high-quality waste heat generated in the MCFC. Based on the electrochemistry and non-equilibrium thermodynamics, analytical expressions for the efficiency and power output of the hybrid system are derived by taking various irreversible...
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