𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Heating and air conditioning: by John R. Allen, James Herbert Walker and John William James. Sixth edition. 667 pages, illustrations, plates, 16 X 23 cms. New York, McGraw-Hill Book Company, 1946. Price $5.50

✍ Scribed by R.H. Oppermann


Publisher
Elsevier Science
Year
1947
Tongue
English
Weight
75 KB
Volume
243
Category
Article
ISSN
0016-0032

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✦ Synopsis


This book has been familiar to a host of engineers as a text and reference work through the years of much progress in both heating and air conditioning. Now in its sixth edition it has kept up with this progress and today offers a modern treatment in method of presentation obtained by experience, as well as content. The changes in the science of heating and air conditioning since the previous edition (1939) have not been revolutionary so that much of the previous work has been retained. What additional knowledge and improved applications there have been are important as facts and accomplishments which point to the future. The features of this sixth edition are these changes and revisions.

We are undoubtedly on the threshhold of practical use on a much larger scale of the reversed cycle refrigeration system. This interesting subject is given consideration from a theoretical and practical viewpoint. An entirely new section on panel heating is included in the new edition. The chapter on fuels and boilers has been extensively revised; with the inclusion of flue gas efficiency charts for coal, gas, or oil firing. Information relative to odorremoval apparatus and air sterilization has been added. Revisions include the latest rating formulas and design procedures of the furnace heating and residence air conditioning industry. The chapter on hot water heating has been changed to incorporate more up-to-date information on design of small forced circulation systems. Other recent developments in the field of heating, ventilating and air conditioning are covered.

Outstanding in this work is clarity of presentation. The method is that of a text with descriptive matter usually first, then reference to tabular and formula data, and finally an exercise with its progressive steps to solution. Such exercises are constructed from different angles and approaches. Free use is madeof photographs and drawings. At the ends of chapters are problems to be solved by the student.

Appendixes contain much valuable information and workable data including the theory of air and water-vapor mixtures for those interested in precise calculations, and a complete understanding of such phenomena. The comprehensive subject index adds much to the value of the work for reference. R. H. OPPERMANN.