Table 2. Comparison of Pool Boiling Performance of Previously Reported Laser-Textured Surfaces against Superhydrophobic Microcavity Surfaces Presented in this Study.
authors | material | laser pulses | CHF (kW m–2) | ΔCHF (%) | h (kW m–2 K–1) | Δh (%) |
---|---|---|---|---|---|---|
Kruse et al.26 | stainless steel | fs | 1420 | +56 | 67.4 | +193 |
Kruse et al.64 | copper | fs | 1300a | –22 | 70.3a | +1 |
Kruse et al.65 | copper | fs | 1430 | –15 | 87.0 | +24 |
Nirgude and Sahu27 | copper | ns | N/Ab | N/A | 41.5b | +80 |
Zupančič et al.28 | stainless steel | ns | N/Ab | N/A | 35.4b | +177 |
Voglar et al.29 | stainless steel | ns | 1200c | +269 | 48.2c | +166 |
Može et al.30 | copper | ns | 1580 | +89 | 76.1 | +129 |
Mani et al.66 | copper | ps | 2260 | +103 | 97.5 | +153 |
this study | aluminum | ns | 1539 | +41 | 201.4 | +496 |
Only surfaces without microchannels are considered.
CHF not measured, HTC at the highest heat flux measured on an individual surface.
Thin heater burnout.