Facility Piping Systems Handbook, Second Edition
Using a total systems approach, this handbook progresses from fundamentals of system and component operation to a design procedure that allows quick and accurate component and pipe sizing.
TABLE OF CONTENTS Facility Piping Systems Handbook, Second Edition
Chapter 11: FACILITY STEAM AND CONDENSATE SYSTEMS
This chapter describes systems concerned with the generation, distribution, installation, and sizing criteria for steam and steam condensate systems to be used for purposes other than comfort or space heating. The systems described here include those providing steam for kitchen and laundry facilities, water purification, humidification, and steam tracing, as well as steam systems for laboratory and sterilizing purposes. Steam for space and comfort heating, although briefly discussed, are outside the scope of this handbook. Heat tracing systems utilizing steam are described in Chap. 5.
SYSTEMS DESCRIPTION
The complete system is actually composed of two codependent, connected subsystems. The steam subsystem includes a source of steam, distribution piping to carry steam to the point of use, and controls to regulate steam flow at the required pressure or temperature. At some point after the steam has been used at the terminal equipment, the steam condenses into a liquid, called condensate. The condensate subsystem may be designed in such a way that the condensate is returned to the steam source, absorbed into the process and lost from the system, or simply wasted to a drain. If the condensate is to be recovered for reuse or is to be wasted, then additional components such as steam traps, flash tanks, condensate piping, heat rejection terminal units, and condensate pumps may be required.
CODES AND STANDARDS
The following standards are generally used to design the steam and condensate systems that are the subject of this handbook:
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ASME Boiler and Pressure Vessel Code
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