Wednesday, January 30, 2013

Energy management using chill water

RESIDENTIAL CHILL WATER AIR-CONDITIONING SYSTEMS ARE VERY ENERGY EFFICIENT:
A chilled-water applied system uses chilled water to transport heat energy between the air side, chillers and the outdoors. These systems are more commonly found in large HVAC installations, given their efficiency advantages.
The components of the chiller (evaporator, compressor, an air- or water-cooled condenser, and expansion device) are often manufactured, assembled, and tested as a complete package within the factory. These packaged systems can reduce field labor, speed installation and improve reliability.
Alternatively, the components of the refrigeration loop may be selected separately. While chilled water systems are rarely installed as separate components, some air cooled chillers offer the flexibility of separating the components for installation in different locations. This allows the system design engineer to position the components where they best serve the space, acoustic, and maintenance requirements of the building owner.
Another benefit of a chilled-water applied system is refrigerant containment. Having the refrigeration equipment installed in a central location minimizes the potential for refrigerant leaks, simplifies refrigerant handling practices, and typically makes it easier to contain a leak if one does occur.
Factors affecting the decision to select Direct Expansion V Chilled Water Applied systems include:
  1. Installed Cost
  2. Energy consumption
  3. Space requirements
  4. Freeze prevention
  5. Precision
  6. Building height, size, shape
  7. System cooling and heating capacity
  8. Centralized maintenance
  9. Stability of control
  10. Individual tenant billing
Williams Air Technologies LLC offers a comprehensive design and energy analysis to help you consider all factors in selecting the correct type of system for your project.
Visit our website at www.williamsairtechnologies.com.

1 comment:

  1. I've been hearing more and more about water cooled chillers. They sound much more efficient than traditional air conditioners or central air. Do they operate in the same or similar ways as air cooled chillers do?

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