Condenser Water Piping System
System it would amount to about a 2 5 f 1 4 c reduction in saturation temperature at the condenser.
Condenser water piping system. Their installation and specifically the installation of the piping to and from the evaporative condenser has a direct effect on their operation and the overall energy efficiency of the refrigeration system. System application and material usage. For the tower piping circuit the pump must overcome the piping flow friction loss. Pipe fabrication institute pfi standard es 22 provides piping materials color coding requirements for most commonly used piping material grades.
Evaporative condensers are used in refrigeration systems as an efficient means of heat rejection. Pvc piping systems are recognized as acceptable for use in condenser water systems in all major model plumbing codes. Refer below images for the color band location on piping components. Piping condenser cooling tower losses and valves.
This unit just maintains a certain pressure in the system. The cooled water is then returned to the chiller to absorb more heat energy and repeat the cycle. Isolation valves shutoff valves by pass circuits flanges and unions shall be. Isolation of piping at equipment.
We will need a set of pumps to push the water through the chiller and around the system so we can drop those in. Pipe diameters are available from 2 to 24 and in 10 or 20 foot lengths. This means that either the condenser should be increased in size approximately 15 percent or it must liquid discharge gas water out water in liquid discharge gas figure 1 figure 2 typical shell and tube water cooled condenser typical. All most all company has their own color coding system.
Water cooled in the tower is supplied to the chiller which adds heat to the water and returns it to the tower. A typical ex ample of an open loop system is a recirculating condenser water system with a cooling tower where the water is circulated through the cooling tower sprayed over the tower media surface collected into the tower basin circulated through the condenser and then sent back through the cooling tower. It s best to begin by thinking about the chilled water system in 3 parts or stages. Now for the condenser water side.
Remember air cooled chillers do not require a condenser system. In general hvac systems shall utilize parallel piping systems with a. See figure 1 each of these stages overlaps via some form of heat transfer ultimately taking the heat from the building and releasing it to the atmosphere using sequential media. It also provides guidance on marking location on piping components.
In this manual we will explore the principles of piping evaporative condensers beginning with single condensers and exploring multiple condenser installations as well as thermosiphon and. In essence the condenser water system connects the chiller to the cooling tower through supply and return piping. 5 17 piping systems chilled water and condenser water piping. For condenser water applications solid walled pipe either schedule 40 80 or constant pressure rated standard dimensional ration sdr is used.
Provisions for piping in earthquake zones.