Excerpt from Theoretical and Practical Ammonia Refrigeration: A Work Reference for Engineers, and Others Employed in the Management of Ice and Refrigeration Machinery
There are many engineers and others interested in refrigerating machinery who have felt the want of the book of reference that will enable them to determine, with sufficient accuracy for all practical purposes, what work their machines are doing without resorting to laborious calculations; therefore a number of tables have been prepared to meet this want, and a short treatise in the Theory and Practice of Refrigeration incorporated therewith.
The tables, which have been calculated as accurately as possible, and have been checked by a gentlemen of considerable "expert" experience, cover a sufficiently wide range of temperatures and pressures to meet all ordinary, and a good many extraordinary, requirements.
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