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→Heat: Something I really should have done last year: time formulae |
→Rack Heat Dissipation: Add a quick-reference table for dissipation times |
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and the time required to drop from 50% rack heat to 20% rack heat is equal to | and the time required to drop from 50% rack heat to 20% rack heat is equal to | ||
:<math>\displaystyle \text{t} = 100 \cdot \ln{\frac{0.5}{0.2}} = 100 \cdot 0.91629 = \text{91.6 seconds}</math> | :<math>\displaystyle \text{t} = 100 \cdot \ln{\frac{0.5}{0.2}} = 100 \cdot 0.91629 = \text{91.6 seconds}</math> | ||
The logarithmic nature of this formula implies that actually reaching 0% rack heat is impossible, so at some low value the server simply rounds down to 0%. | The logarithmic nature of this formula implies that actually reaching 0% rack heat is impossible, so at some low value (unknown but below 1%) the server simply rounds down to 0%. If we assume that low value is 0.5%, then the maximum possible heat dissipation time is | ||
:<math>\displaystyle \text{t} = 100 \cdot \ln{\frac{1.0}{0.005}} = 100 \cdot 5.2983 = \text{529.8 seconds}</math> | |||
-Which is just less than 9 minutes. | |||
The following is a quick-reference table of heat dissipation times | |||
{| border="1" | |||
|- | |||
| Heat Level || 100% || 90% || 80% || 70% || 60% || 50% || 40% || 30% || 20% || 10% || 1% | |||
|- | |||
| Time to lose next 10% || 10.5s || 11.8s || 13.4s || 15.4s || 18.2s || 22.3s || 28.8s || 40.5s || 69.3s || 230s || - | |||
|- | |||
| Cumulative loss time from 90% || - || - || 11.8s || 25.2s || 40.6s || 58.8s || 81.1s || 109.9s || 150.4s || 219.7s || 449.7s | |||
|- | |||
|} | |||
=== Module Heat Damage === | === Module Heat Damage === | ||