Degree-Hour
Definition
A thermal-summation unit defined under a stated model and threshold. A degree-hour combines a defined temperature difference with one hour of duration. In a model with a base of 10 °C, constant 20 °C for one hour contributes 10 °C·h.
- Context
- Thermal calculations
For example, an excess of 10 °C maintained for two hours contributes 20 degree-hours under the specified thermal-summation convention.
The threshold and endpoint belong to the selected model. Degree-hours are not interchangeable with calendar hours or degree-days without the appropriate conversion.
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