Catalog · ACT (Advanced Cooling Technologies)
Heat pipe — Heat-pipe wrap, 1473 × 1100 mm face, 8 rows at 12.0 fpi.
A ACT (Advanced Cooling Technologies) listing, from the manufacturer's published data.
| Face height | 1473 mm |
| Face length | 1100 mm |
| Rows | 8 |
| Fins per inch | 12.0 |
| Primary air flow | 4.00 m³/s |
| Secondary air flow | 4.00 m³/s |
Open the builder and pick this listing from the catalog picker — the solver runs it with the catalog's own figures, at your design point or across a year of weather.
| heatPipes | ACT WAHX 12-4 wrap-around heat pipe, 1473×1100 face (sized for 4 m³/s) | |
| heatPipes | ACT WAHX 12-6 wrap-around heat pipe, 1473×1100 face (sized for 4 m³/s) |
| Fin-and-tube coil model (Elmahdy & Biggs air side, Gnielinski/Dittus-Boelter bracket water side, computed fin efficiency, contact resistance) | 36 | total capacity RMS 1.21 %, worst 2.0 %; sensible RMS 0.98 %; leaving RH within 0.5 points on average (re-read 27 Aug on the corrected saturation line, calibration 0.81) |
| Dry-coil Colburn j-factor and whole-coil UA | 38 + 1 | j +13.3 % mean against 38 measured points (inside the 3–18 % contact resistance the thesis folds into its own j); UA 0.6380 against a measured 0.6327 kW/K — 0.8 % (0.14 % at the pre-27-Aug calibration) |
| Heat-pipe recovery effectiveness | 3 sizes | within 1 point of ACT's selection |
| Moist-air saturation line (IAPWS-IF97 water line with Buck's 1981 enhancement factor) | 6 | within 0.1 % at every point — a flat 1.015 factor had put the line about 1 % high until 27 Aug |
From the validation page; every row is held by a test.
Listed from published data; a listing's figures are the manufacturer's, the model that runs them is ours. Solver results never depend on who has claimed what.