6 replies to this topic

[uglydisease]

I've been working on program to give a more accurate simulation of real world dps, and I came across something strange.

According to smurfy different weapons have different "Efficiency of Heatsinks to Negate Heat" (EHS) values. You can see it on the weapon table here http://mwo.smurfy-ne...eapon_ballistic. Can anyone explain to me exactly how this works? Normally heat dissipation is (Heatsink Number)/10 per second. How does weapon heat negation efficiency effect this calculation?

[Mercules]

They are listing how many heat sinks you need to run the weapon without ever gaining heat. Look at the Gauss Rifle. One heat per shot, 2.5 shots per 10 seconds means 3 EHS.

[Levi Porphyrogenitus]

A Standard Heat Sink dissipates 0.1 heat per second. A Double Heat sink dissipates either 0.2 heat per second (if it's build-in to the engine) or 0.14 heat per second (if it's added to the engine or external to it).

Each weapon generates its own heat amount when fired, and each weapon has its own refire rate.

One assumes that an AC2 at 1 heat per shot, firing 2 times a second (for a total of 2 heat per second) would require 20 SHS to be heat neutral. The equivalent in DHS, assuming a 250 or greater engine rating, would be 10 DHS to fire 1 AC2 without gaining heat. Moving, ambient temperature, Flamers, secondary weapons, etc., would all cause you to gain heat if you had exactly 1 AC2 and 20 SHS.

Edit: corrected a mistake in my numbers (I'd jumped from one AC2 to 2 for some reason).

Edited by Levi Porphyrogenitus, 10 February 2014 - 11:44 AM.

[uglydisease]

I'm not referring to the "Heat" column. I'm referring to the "EHS" column. The Gauss has a heat value of 1 but a EHS of 3. EHS is not the same as heat.

[Bishop Steiner]

uglydisease, on 10 February 2014 - 11:39 AM, said:

I'm not referring to the "Heat" column. I'm referring to the "EHS" column. The Gauss has a heat value of 1 but a EHS of 3. EHS is not the same as heat.

Correct, as Mercules stated, the EHS is taking each weapons heat output over 10 seconds (aka heat by rof) and showing how many HS are required to make that weapon Heat Neutral over a 10 second period (the traditional time span of a Battletech turn, and the heat reduction time for a single heat sink to dissipate a single point of heat.

Since a GR fires 2.5 times in 10 seconds, it generates 2.5 heat (OK you can't fire half a shot, but when extrapolated over a longer time span it matters) and thus, for a single GR to be Heat neutral, it requires 3 Single Heat Sinks.

[uglydisease]

Got it so the formula is: (Heat*10)/(Cooldown Time). Thanks for help.

[Levi Porphyrogenitus]

uglydisease, on 10 February 2014 - 11:39 AM, said:

I'm not referring to the "Heat" column. I'm referring to the "EHS" column. The Gauss has a heat value of 1 but a EHS of 3. EHS is not the same as heat.

EHS is a function of Heat with the dissipation of MWO's SHS. Your initial question was relating to how EHS works, which requires understanding the underlying heat generation and heat dissipation values that MWO uses. To reiterate, EHS is the number of heat sinks needed to render a weapon perfectly heat-neutral. At 0.1 hps per SHS, it should be pretty easy to figure out on a per-weapon basis. My AC2 example (corrected now, due to my careless introduction of a stupid error) simply illustrated how the calculation is made.