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Equation 1 · Part 4 · How AI Datacenter Power and Cooling Actually Work

Symbol Δ T

Q˙=m˙ cp ΔT\dot{Q} = \dot{m}\, c_p\, \Delta T
ΔT\Delta T

What this part means

the temperature rise the coolant is allowed across the cold plate.

Its job in the formula

Δ T is an input to the expression that computes the quantity on the left.

Where the article explains it

where Q˙\dot{Q} is the heat to be removed (watts), m˙\dot{m} is the coolant mass flow rate, cpc_p is its specific heat, and Δ\Delta T is the temperature rise the coolant is allowed across the cold plate.

The passage around this formula

…budget for a cold plate loop follows directly from the sensible-heat relation: Q˙=m˙ cp ΔT\dot{Q} = \dot{m}\, c_p\, \Delta T. where Q˙\dot{Q} is the heat to be removed (watts), m˙\dot{m} is the coolant mass flow rate, cpc_p is its specific heat, and Δ\Delta T is the temperature rise the coolant is allowed across the cold plate. This is the one relationship every cooling-loop sizing decision in this article reduces to: a facility either raises m˙\dot{m} (bigger pumps, more flow, more pumping power) or accepts a larger Δ\Delta T (which raises the…

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the article section

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