Table 7 Ln (theta) temperature time for D = 40 mm controlled at 110 °C A-JIC
Water impingement jet cooling | Air impingement jet cooling (A-JIC) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
T = 450 °C at D = 40 mm (H = 115 mm) | T = 450 °C at D = 40 mm (H = 115 mm) | ||||||||
Ts | Tf | Theta | t(s) | Ln (theta) | Ts | Tf | Theta | t(s) | Ln (theta) |
450 | 59 | 1 | 0 | 0 | 450 | 41 | 1 | 0 | 0 |
393.34 | 59 | 0.85509 | 44.6 | −0.15655 | 393.34 | 41 | 0.861467 | 120.2 | −0.14912 |
336.68 | 59 | 0.710179 | 89.2 | −0.34224 | 336.68 | 41 | 0.722934 | 240.4 | −0.32444 |
280.02 | 59 | 0.565269 | 133.8 | −0.57045 | 280.02 | 41 | 0.584401 | 360.6 | −0.53717 |
223.36 | 59 | 0.420358 | 178.4 | −0.86665 | 223.36 | 41 | 0.445868 | 480.6 | −0.80773 |
166.7 | 59 | 0.275448 | 223 | −1.28936 | 166.7 | 41 | 0.307335 | 601.8 | −1.17982 |
110 | 59 | 0.130435 | 267.6 | −2.03688 | 110 | 41 | 0.168704 | 721.2 | −1.77961 |