Ammonia Refrigeration

A Work of Reference for Engineers and others Employed in the Management of Ice and Refrigeration Machinery.

By ILTYD I. REDWOOD

CONTENTS

B. T. U. Mechanical Equivalent of a Unit of Heat. Specific Heat. Latent Heat. Theory of Refrigeration. Freezing, by Compressed Air. Ammonia. Characteristics of Ammonia. The Compressor. Stuffing-Boxes. Lubrication. Suction and Discharge Valves. Separator. Condenser-Worm, Receiver. Refrigerator or Brine Tank. Size of Pipe and Area of Cooling Surface. Charging the Plant with Ammonia. Jacket-Water, for Compressor, for Separator. Quantity of Condensing Water Necessary. Loss due to Heating of Condensed Ammonia. Cause of Variation in Excess Pressure. Use of Condensing Pressure in Determining Loss of Ammonia by Leakage. Cooling Directly by Ammonia. Freezing Point of Brine. Making Brine. Specific Heat of Brine. Regulation of Brine Temperature. Indirect Effect of Condensing Water on Brine Temperature. Directions for Determining Refrigerating Efficiency. Equivalent of a Ton of Ice. Compressor Measurement of Ammonia Circulated. Loss of Well-Jacketed Compressors. Loss in Double-Acting Compressors. Distribution of Mercury Wells. Examination of Working Parts. Indicator Diagrams. Ammonia Figures—Effectual Displacement. Volume of Gas. Ammonia Circulated per Twenty-Four Hours. Refrigerating Efficiency. Brine Figures-Gallons Circulated. Pounds Circulated. Degrees Cooled. Total Degrees Extracted. Loss due to Heating of Ammonia Gas. Loss due to Heating of Liquid Ammonia. Calculation of the Maximum Capacity of a Machine. Preparation of Anhydrous Ammonia. Construction of Apparatus, etc., etc.

150 pages, 15 illustrations, cloth, $1.00.


LUBRICANTS,

OILS AND GREASES

Treated Theoretically and Giving Practical Information Regarding Their