S43 -- Liquid-Chilling Systems (SI)

Liquid-chilling systems cool water, brine, or other secondary coolant for air conditioning or refrigeration. The system may be either factory-assembled and wired or shipped in sections for erection in the field. The most frequent application is water chilling for air conditioning, although brine cooling for low-temperature refrigeration and chilling fluids in industrial processes are also common. The basic components of a vapor-compression, liquid-chilling system include a compressor, liquid cooler (evaporator), con-denser, compressor drive, liquid-refrigerant expansion or flow-control device, and control center; it may also include a receiver, economizer, expansion turbine, and/or subcooler. In addition, auxiliary components may be used, such as a lubricant cooler, lubricant separator, lubricant-return device, purge unit, lubricant pump, refrigerant transfer unit, refrigerant vents, and/or additional control valves. For information on absorption equipment, see Chapter 18 of the 2010 ASHRAE Handbook--Refrigeration.

Chapter Table of Contents

GENERAL CHARACTERISTICS
Principles of Operation
Common Liquid-Chilling Systems
Selection
Control
Standards and Testing
General Maintenance
RECIPROCATING LIQUID CHILLERS
Equipment
Performance Characteristics and Operating Problems
Method of Selection
Control Considerations
Special Applications
CENTRIFUGAL LIQUID CHILLERS
Equipment
Performance and Operating Characteristics
Selection
Control Considerations
Auxiliaries
Special Applications
Operation and Maintenance
SCREW LIQUID CHILLERS
Equipment
Performance and Operating Characteristics
Selection
Control Considerations
Auxiliaries
Special Applications
Maintenance

ISBN: 978-1-936504-26-8 (for SI versions of chapters)
ISSN: 1930-7705 (for SI versions of chapters)

Citation: 2012 ASHRAE Handbook -- HVAC Systems and Equipment: Chapter 43, Liquid-Chilling Systems (pt 1 of 2)



Product Code(s): D-S432012SI