Thanks for the reply.
By performance I meant some of the things you mentioned, pressure drop, size and cost of piping installation, pump hp., and your comment about erosion of the piping, valves and fittings. In addition, for velocities above the norm I was thinking about possible turbulent...
Typical target I have used for fluid velocity in piping design is 7-10 ft/sec. What are the implications of higer and lower values? I realize the obvious, like friction losses and the related pump sizing, but am not sure about performance.
If a lower value is used, say 1-2 ft/sec to gain...
quark
The chillers are primarily used for air conditioning, but there is also some process cooling that is used. Environmental temperature and humidity are necessary for process control. Our 'typical' installation would be about 1200t of refrigeration required and we have exclusively used air...
Setra
Thanks for the input. For more details, if we are in a moderate climate, with design temp about 75F and chiller size about 400T (each with multiple chillers needed for capacity), can you give me some more comment?.
Thanks again.
I am interested if anyone could lead me to an analysis of capital and operating cost comparison of air cooled vs. water cooled chillers. Further to that point, screw vs. helical, or other types of compressors.
