Exergy based analytical investigation of cryogenic loop of test auxiliary cold box
2017
The test auxiliary cold box (TACB) has been designed for the qualification test of ITER cold circulator. The test loop in the TACB has been designed by incorporating various components and this test loop will undergo different operation modes. The exergy analysis has been performed for the test loop including all involved components to check their thermal performance and Irreversibility. The result shows the contribution of exergy destruction and exergy efficiency for the test loop as well as individual components during nominal operating case; cold circulator inlet pressure ∼0.5 MPa and inlet temperature ∼4.6 K. The analysis result has been captured the loop pressure variation between 0.5 MPa to 2 MPa in order to evaluate the balance between thermodynamically efficient process conditions and actual requirements, even though above 1 MPa pressure is not foreseen during the cold circulator test. The exergy based analysis approach for the cryogenic test loop show a path towards efficient process conditions at higher loop pressure and identify the inefficiencies in the various components.
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