Temperaturwechselbelastungen

Temperaturwechsel, or temperature change, is a term used in science and engineering to describe how temperature varies over time. It is represented by ΔT = T2 − T1. Temperature changes arise from heat transfer, chemical reactions, phase changes, or environmental conditions. Readings are in degrees Celsius or Kelvin; ΔT is the difference between two measurements, with consistent units.

The rate of change, dT/dt, is measured in K/s or °C/s. Temperature differences drive heat transfer by conduction, convection, and radiation, depending on material properties such as thermal conductivity, heat capacity, and density.

Temperature cycling refers to repeated or rapid changes that cause thermal stress as materials expand or contract at different rates, potentially leading to fatigue, cracks, or failure. In testing, controlled cycles are used to assess reliability.

Applications include engineering design, thermal management, electronics performance, and reliability, as well as meteorology where diurnal and seasonal fluctuations affect climate and energy use.

Measurement and control rely on thermometers, thermocouples, RTDs, or infrared sensors. German usage: Temperaturwechsel denotes any temperature change; Technik contexts use terms like Temperaturwechselzyklus for cycling and thermische Tests for reliability.