Refrigeration and Air Conditioning

G F. Hundy • A. R. Trott • T. C Welch

Refrigeration and air-conditioning absorb about 15% of the UK’s electrical generation capacity and it is not always appreciated that refrigeration tech­nology is essential to our modern way of life. Without it, distribution of food to urban areas may not be possible. In a typical office, air conditioning can account for over 30% of annual electricity consumption, yet who cares about checking the system to find out if it is working efficiently?

Reducing the environmental impact of cooling whilst at the same time maintaining and expanding expectations is the driver of many of the devel­opments which have been made since the last edition of this book. Aimed at students, and professionals in other disciplines, not too theoretical but with suf­ficient depth to give an understanding of the issues, this book takes the reader from the fundamentals, through to system design, applications, contract specifi­cations and maintenance. Almost every chapter could be expanded into a book in itself and references are provided to assist those wishing to delve deeper. Standards and legislation are subject to change and readers are recommended to consult the Institute of Refrigeration website for the latest developments.

This edition gives an up-to-date appreciation of the issues involved in refrig­erant choice, efficiency, load reduction, and effective air conditioning. Managing heat energy is going to be crucial in the UK’s quest to reduce carbon emissions — and managing heat rather than burning fuel to generate more of it, is what heat pumps do. Refrigeration technology has a potentially huge role to play in heat­ing, which is where a very large proportion of the UK’s energy is spent.

In navigating this book you should be guided by the context of your interest, but at the same time develop an awareness of related topics. Most real prob­lems cross boundaries, which are in any case difficult to define, and some of the most exciting developments have occurred when taking concepts from various branches to other applications in innovative ways.

I am much indebted to friends and colleagues in the industry who have helped with information, proof-read drafts, and given guidance on many of the topics. Particular thanks are due to individuals who have gone out of their way to provide suitable illustrations and to their organisations for supporting them.

Guy Hundy

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