Table 3

Geometric and operational parameters of the IHX.

Parameter Symbol Value
Total heat transfer rate 187.5 MW
Intermediate circuit higher temp. Tc,out 670 °C
Intermediate circuit lower temp. Tc,in 600 °C
Width W 1 m
Height H 1.5 m
Length L 0.69 m
Channel diameter dch 2 mm
Plate thickness tp 1.3 mm
Channel pitch pch 2.5 mm
Channels number nch 240,000
Global heat transfer coeff. U A 3.02 MW K−1
Hot channel Reynolds number Re h 238
Cold channel Reynolds number Re c 5631
Hot channel average velocity uh 1.14 m s−1
Cold channel average velocity uc 2.66 m s−1
Hot channel pressure drop Δph 3.96 bar
Cold channel pressure drop Δpc 1.30 bar
Fuel salt volume Vsalt 0.26 m3

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