Foreword

Foreword

Introduction

1Scope

2Normative references

3Terms and symbols

3.1Terms

3.1.1Basic terminology

3.1.1.1magnetocaloric effect

3.1.1.2magnetocaloric material

3.1.1.3conventional magnetocaloric effect

3.1.1.4inverse magnetocaloric effect

3.1.1.5magnetic phase transition

3.1.1.6first-order phase transition

3.1.1.7second-order phase transition

3.1.1.8structural transition

3.1.1.9dilational transition

3.1.1.10applied magnetic field strength

3.1.1.11magnetic field change

3.1.1.12applied magnetic field change

3.1.1.13internal magnetic field strength

3.1.1.14critical point

3.1.2Material properties

3.1.2.1specific isothermal entropy change

3.1.2.2adiabatic temperature change

3.1.2.3Curie temperature

3.1.2.4magnetocaloric transition temperature

3.1.2.5magnetocaloric transition field

3.1.2.6peak temperature

3.1.2.7ΔT

3.1.2.8Δs

3.1.2.9ΔT

3.1.2.10central temperature (of Δs or T)

3.1.2.11magnetocaloric thermal hysteresis

3.1.2.12reversible transition

3.1.2.13specific heat capacity

3.1.2.14magnetocaloric material corrosion

3.1.2.15degradation (of the magnetocaloric material or AMR)

3.1.2.16magnetocaloric material porosity

3.1.2.17inhomogeneity of the chemical composition

3.1.2.18toxicity

3.1.2.19thermal conductivity

3.1.3Application related terminology

3.1.3.1magnetocaloric system

3.1.3.2heat pump

3.1.3.3magnetocaloric heat pump

3.1.3.4magnetocaloric appliance

3.1.3.5thermomagnetic generator

3.1.3.6thermomagnetic motor

3.1.3.7active magnetic regenerator

3.1.3.8refrigeration capacity

3.1.3.9heating capacity

3.1.3.10coefficient of refrigeration performance

3.1.3.11coefficient of heating performance

3.1.3.12exergy efficiency

3.1.3.13thermal span

3.1.3.14appliance thermal span

3.1.3.15AMR frequency

3.1.3.16regeneration factor

3.1.3.17utilization

3.1.4Figures of merit

3.1.4.1refrigerant capacity

3.1.4.2specific magnetocaloric work

3.2Symbols

Annex AExample of a ΔT-curve for a typical magnetocaloric material (informativ)

Bibliography