Thirty Million B.T.U. CAPACITY
REPORTS
I/EC
complex picture; changes in equip ment and the thinking behind these changes require constant review. In this short space only some significant changes in various classes can be noted. Automation may influence equip ment design to an extent undreamed of today. Automatic equipment will reduce direct operating labor cost but raise maintenance labor cost. By incorporating automatic control equipment with maximum relia bility, the designer can make or break the economic performance of process equipment. A u t o m a t i o n and Electronics Are Inseparable
Electronic controls have several advantages beside compactness for large scale operations: • • •
Cooling in Chemical Processes with Precise Control off T e m p e r a t u r e T h e N I A G A R A Aero H E A T E X C H A N G E R cools liquids and gases by evaporative cooling with atmo spheric air, removing the heat at the rate of input, con trolling temperature precisely. You save 9 5 % of cost of cooling water; you make great savings in pumping, piping, power; quickly recover your installation cost. You can cool and hold accurately the temperature of all fluids, air and gases, water, oils, solutions, chemical intermediates, coolants for mechanical, electrical and thermal processes. You obtain closed system cooling free from dirt. You solve all the problems of water availability, quality or temperature. In C H E M I C A L P R O C E S S E S this is successfully used in cooling liquids and gases, chemical reactions, condensing distillations and reflux cooling. W r i t e for complete information; ask for Bulletins 120 and 124. Address Dept. E.C.
NIAGARA
BLOWER
4 0 5 Lexington A v e .
District
Engineers
in Principal
COMPANY
N e w York 17, Ν . Υ.
Cities of United States and
For further information, circle number 18 A on Readers' Service Card, page 117 A
18 A
INDUSTRIAL AND ENGINEERING CHEMISTRY
Canada
More precise control Lower capital investment Less maintenance cost
Electrical communication gets the nod now as the result of develop ment of equipment permitting un restricted location of controls and dis tance to units in the system, and adaptability to a wide range of process variables. Data logging has gotten out of the hands of operators, who are usually too busy during pe riods of emergency to log data. But data logging also shows its impor tance in normal operation, and systems of automatic data logging are in use in the control rooms of newer chemical plants and re fineries. Higher Temperatures
Among nondirect cost considera tions in design, several future trends stand out. One cited by several chemical engineers is increasing use of higher temperatures. This trend is made possible through results of high temperature metallurgy and refractory research. In this field, the process industries will benefit from the by-products of the government rocket research program. Advances in metallurgy and in lubrication will bring changes in reciprocating and rotating process equipment. Results of metallurgical research will allow greater physical strength and corrosion resistance over a wide range of temperatures. Syn-
