This is most definitely snake oil. I get this sales pitch many times a year from all sorts of companies touting truly impossible claims.
With out a plausible scientific explanation of how the system performance is improved it would not be prudent to endorse the use of these products. If the...
All the large ships in the US Navy as well as those in UK and most of the other NATO countries use seawater cooled chillers. Most are direct seawater loops with 90/10 Cu-Ni tubes and clad heads with annodic/cathodic plugs (sacrificial metal). Many cruise ships use a very similar setup...
To Basenji -
Thanks for the information. It is always nice to hear from someone who actually uses the equipment rather than just the OEM. The user usually has an unbiased viewpoint. The OEM's always have some sort of agenda or propoganda to sort through.
Again Thanks..
Centrif
Any liquid chiller which uses R-123 (or R-11 in older systems) needs a purge system. Both of the above mentioned refrigerants operate with sub-atmospheric pressure in the compressor suction. Both Trane and York manufacture such chillers and both have purge units as standard equipment on their...
To basenji
I know that McQuay has licensed the Turbocor compressor but I am not sure if they have started to display it at shows yet. McQuay has licensed other compressor technology from small companies before. For a while they were using a single screw design from Bernard Zimmer...perhaps...
To Basenji -
I am glad you have had good performance with your machines. However, it is very difficult to perform a thorough evaluation on a unit installed in the field...you just don't have enough control over the operating conditions on the unit. Do you have calibrated water flow meters in...
Your local Trane rep should be able to provide you with all of the information you need. Was your unit performance tested at their factory? If so you can get a copy of the factory test results. Usually these types of tests are performed at 100%, 75%, 50% and 25% load. Their test blocks are...
Be careful in trying to lower the condenser temp on a compressor with a hermetic motor. The manufacturers usually cautions us against this and suggests a min of 85 degrees or so. The delta P between the evap and condenser is what drives the hermetic motor cooling. Drop the condenser to...
The Turbocor compressors are nifty Hi Tech machines but they are short on performance. At full load, they barely meet the ASHRAE minimum performance guidelines for water cooled (or air cooled for that matter) compressors. At part load conditions their performance drops off sharply. In addition...
Alwyn -
There are several ways to change your system over to R-134a. You do not need to replace the entire chiller.
First - you can just do a compressor upgrade..i.e. buy an entirely new compressor sized for your application. You do not need to go back to the original supplier of your...
