What is Chilled water: Definition and 11 Discussions

Chilled water is a commodity often used to cool a building's air and equipment, especially in situations where many individual rooms must be controlled separately, such as a hotel. The chilled water can be supplied by a vendor, such as a public utility or created at the location of the building that will use it, which has been the norm.

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  1. T

    Mean Rating Temperature for insulation in ASHRAE

    Hello, Can someone please tell me what the mean rating temperature in the tables provided in ASHRAE fundamentals, ASHRAE standard 90.1&90.2 for chilled water insulation indicates.
  2. Mamat31

    Reducing pressure in a chilled water system

    Hi all, I am new on this forum, hope you are doing good. I have a question related to a project I am currently working on. The system is a 40+ floors mix used building, with a cooling system composed of a couple of centrifugal chillers, and a primary/secondary pumping configuration. There is...
  3. mktsgm

    Medical Does chilled water contains Deuterium?

    I have heard that chilled water contains hard water. ie in the H2O contains another isotope of Hydrogen with a neutron. Is it true? If so, how it might affect our health if we drink?
  4. Assim

    Cooling Hot Water: Find a Solution in 10-15 mins

    I have a project which i need to cool down certain quantity of hot water. I need to cool down water of around 25 litres at 50 Degree celcius to 30 Degree celcius, Static water, not flowing. (or incoming 50 Degrees - Outgoing 30 Degrees with approx 1.5 gallons per minute flow rate) time...
  5. David Gin

    Compressor Water Cooled Chiller Thermal Calculations

    Hi All, Is there a list of thermodynamics equations regarding the chiller process from condenser, evaporator, compressor to the regulator. Say I have chiller load at 90%, what set of equations could I use to determine the supply temperature of chill water and condenser supply temperature to...
  6. T

    Chilled water loop pressure and velocity

    Where i work has a chilled water loop to every building for the ac system. A rooftop unit has not been performing as it should so we are investigating into the possible causes. Right now i am trying to come up with the different variables that accompany the givens. I know the pipe is 2.5", the...
  7. X

    Heat transfer rate from Mild steel bars to a chilled water tank issue

    Homework Statement Hi all, I am helping in designing a conveyor that takes freshly milled mild steel bars and submerges them in a tank of cooled water to reduce their temperature enough to to not damage the proceeding equipment. The tank of water will be connected to a separate...
  8. T

    Double Regulating Valves & 2-Way Valves: Why Install for Chilled Water Systems?

    In working with chilled water system, why do we install "double regulating valve" and "2 way valve" when connecting the pipe to the AHU ?
  9. M

    Chilled Water Pump: 1450 RPM, Bronze Impeller | Benefits

    why is it recommended to use a 1450 rpm pump with a bronze impeller for pumping chilled water to the chillers ?
  10. S

    Sizing the Supply and return tanks for chilled water system

    Well i am currently working as a project engineer for utilities at my factory .This is my first installation of chilled water system.So would be requiring some help in sizing the Chilled water supply and return tanks.I am attaching the picture along so that the system is easily understandable.
  11. F

    What are the key considerations for designing a chilled water system?

    Hi. Im a post graduate student but worked in the HVAC industry for almost 3 years but mostly done refrigeration and VRV systems which i designed etc... Had done some minor chilled water system designs but never got to the construction phase. Have a couple of questions and looking for some...
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