Experimental data of thermo-hydraulic measurements of double corrugated tubes

However, the derived surface equations only approximates the surface of the double corrugated tubes. The inaccuracy, caused by imperfection of the equations as well as the limitations of CAD software and manufacturing process, is less than 4 %, thus all the examined tubes are considered to have constant Dh, Inner and outer surface area, As,i and As,o, respectively, length, l, and the wall thickness, δ, are given in Table 1.

The geometry of the examined double corrugated tubes is fully described in Research paper. The data presented in Tables 2 - 8 present full data set obtained during the experimental study – inlet and outlet temperatures as well as mass flow rates for heat transfer and pressure measurements and measured pressure drop. Surface roughness data are presented in Figure 1 as well as separately uploaded as a .tif file.