noun
potential heat; residual heat
Technical term used in engineering, thermodynamics, or energy contexts to refer to heat that is stored, retained, or not yet utilized.
このシステムは、廃材の保有熱を再利用する。
This system reuses the residual heat of waste materials.
保有熱の計算には比熱と質量が必要だ。
Calculating potential heat requires specific heat and mass.
廃熱 (waste heat) is heat that is discarded, whereas 保有熱 can be heat that is retained and potentially usable.
Compound of 保有 (retention, possession) + 熱 (heat). The term is a modern technical coinage.