refrigeration

Introduction

refrigeration, process for drawing heat from substances to lower their temperature, often for purposes of preservation. Refrigeration in its modern, portable form also depends on insulating materials that are thin yet effective. Wherever fresh or frozen food must be stored, processed, transported, or sold, refrigeration is indispensable; thus appropriate refrigeration machinery has been developed for trains, ships, factories, and cold-storage plants (used not only for foods but also for fur storage).

Sections in this article:

Introduction
Early Methods of Refrigeration
Mechanical Refrigeration Systems
Preparation of Frozen Foods
Bibliography

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refrigeration

Introduction

Sections in this article: