Condenser Water Pipe Sizing

Of course the same pipe sizing requirements of ashrare 90 1 discussed above are also included in ashrae 189 1.

Condenser water pipe sizing. Online calculator to quickly determine pipe sizing by velocity for water. Section 6 5 4 6 explains the effects of pipe sizing on chilled water and condenser water systems. The pipe sizing rules are listed in the table 6 5 4 6. For r 404a low temperature 1 psi.

A different pipe section should be used if any of these variables are changed. The nearest commercially available size 150 mm would be selected. If a condensate unit is chosen to collect the water then the anticipated condensate must be determined and the collection device sized accordingly. Let s use the bell gossett system syzer to show how the run hours affect the pipe size.

Again a nomogram has been created to simplify this process see figure 10 2 8. Pipe material pipe type pipe size and length of pipe. Since the steam velocity must not exceed 25 m s the pipe size must be at least 130 mm. The correct layout se lection and sizing of the piping system and associated hydronic components is required to properly deliver chilled and hot water as required to maintain comfort conditions.

Reduction in saturation temperature at the condenser. For r 404a and r 22 medium temperature 2 psi is used. It must also provide the energy head necessary to raise water from a low to a higher static head level. Piping condenser cooling tower losses and valves.

For the tower piping circuit the pump must overcome the piping flow friction loss. Condenser water piping sizing me27272727 mechanical 19 oct 15 15 31 we typically size the velocities for 5 8 fps and pressure drops of around 2 ft 100 ft staying below 4ft 100 ft in most applications. These line sizing charts are based on a suction pressure drop equivalent to a 2 f change in saturation pressure and liquid line pressure drop of 5 psi. The sizing is based on whether it is variable volume or constant volume and the number of hours it will run.

This too indirectly impacts the sizing and selection of some fluid handling equipment. If you have a special case then please use the references sheet to add in your. Piping connec tions at various equipment are covered along with piping arrangements for chilled water systems. This is the maximum allowable pressure drop for the entire piping run regardless if it is 50 or 250.

These are the most common pipes used in condenser water pipe application. Equations displayed for easy reference.