Optimization of two-stage Peltier module with the method of Yamanashi and exergy analysis of the system
C. Ramírez-López , M.A. Olivares-Robles

ESIME-Culhuacan - Instituto Politecnico Nacional, Mexico

Abstract: In this work we present a theoretical analysis of a two-stage thermoelectric system. The aim is to establish the important parameters for the design of the modules and, with the help of a computer program, to simulate the system.s performance for variations of COP and the cooling capacity (β).
The system comprises a pyramidal arrangement consisting of a first Peltier module with a varying number of thermocouples and a second module with a single thermocouple. To analyze the thermodynamic performance of the system, the parameters for the second module are kept constant but changes of those of the first module are allowed. In this way optimal performance values are determined as well as corresponding values for the COP and .. We also present a small exergy analysis of the cooling system, with the aim of observing its exergetic efficiency.