Reality check on reactor timings, please.

Reality check on reactor timings, please. I calculate the duty cycle of a pulsed reactor thusly:

1. Take the number of seconds in Generation Time
2. Take the number of seconds in Cooldown Time
3. Divide the cooldown by the generation

So in the linked example, 23 seconds generation (boom), 11m 7s cooldown.
667 seconds divided by 23 seconds = 28.69 seconds or 1 second in 30 to keep the heat under control.

Is this the correct method? I don't wish to be giving bad advice.

Example 1: http://www.talonfiremage.pwp.b…=1j10101001501521s1r11r10

Quote from Talonius

It's the other way around: 30 seconds cooling for every 1 second generating.

That's what I meant OK so it seems we agree on the calc method. That makes me happy.