Basic principles:nomenclature and units

NOMENCLATURE AND UNITS

Nomenclature

Unless otherwise specified in the text, the following symbols are used consistently throughout this book:

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Note on units

SI units are used consistently throughout this handbook. Certain conventions within the SI structure are used generally throughout the European compressed air industry. These are as follows:

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Conversion factors

For the convenience of those readers more familiar with Imperial units, the following conversion factors may be used.

The values quoted are adequate for most engineering purposes, ie accurate to at least 3

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Basic Principles-0099TERMS AND DEFINITIONS

Terms and definitions used in the Compressor Industry (see also BS 1571 and BS 5791):

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Operating problems:Filters and Material degradation
Material related,Angel hairs and Coating of pipelines.
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Hydraulic accessories:Types of filters.
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Cleanliness.
Process control valves and actuators:Flow control valves ,Actuators and Valve positioners.
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INTRODUCTION AND OVERVIE:A NOTE ON DIMENSIONS AND UNITS
PROPERTIES OF PURE SUBSTANCES:OTHER EQUATIONS OF STATE
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GAS MIXTURES AND PSYCHROMETRICS:SPECIFIC AND RELATIVE HUMIDITY OF AIR
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