Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

• the most efficient way to navigate the Engineering ToolBox!

# Chilled Water Systems

Sponsored Links

In a chilled water system the water is cooled down to 40 - 45 oF (4 - 7 oC) by an centralized evaporator, distributed throughout the building in pipes and connected locally to air condition cooling units wherever needed.

### Total Heat Removed

The total heat removed by an air condition chilled-water system can be calculated

h = 500 q dt                                                           (1)

where

h = total heat removed (Btu/h)

q = water flow rate (gal/min)

dt = temperature difference ( oF)

### Evaporator Flow Rate

The evaporator water flow rate can be calculated

q e = h tons 24 / dt                                                       (2)

where

q e = evaporator water flow rate (gal/min)

h tons = air condition cooling load ( tons )

### Condenser Flow Rate

The condenser water flow rate:

q c = h tons 30 / dt                                                   (3)

where

q c = condenser water flow rate (gal/min)

h tons = air condition cooling load , chiller tonnage ( tons )

Sponsored Links

## Related Topics

### • Air Conditioning Systems

Design of Air Conditioning systems - heating, cooling and dehumidification of indoor air for thermal comfort.

## Related Documents

### Calculating Cooling Loads

Calculating chiller and cooling tower refrigeration loads - in tons.

### Cooling Power vs. Airflow and Duct Sizes

Typical relations between cooling power (tons cooling), air flow and duct size

### Cooling Water - Pipe Lines

Sizing cooling water pipe lines - maximum allowable flow, velocity and pressure drops.

### Water Evaporator and Condenser Equations

Air conditioner heat loads and evaporator and condenser water flow rates.

Sponsored Links

## Search Engineering ToolBox

• the most efficient way to navigate the Engineering ToolBox!

## SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

## Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.