Enduance new water – liquid chiller for lasers: DPSS, Co2, Fiber and other lab equipment.
Initial data chiller testing
The volume of water in the system: 3.7 l
Water pumping speed: 3.6 l/min
Indoor temperature: 25.5-26 degrees C
In addition to the “T chiller” chiller sensor itself, two more are installed – the first one is in the tank near the “T tank” pump (doubles the chiller sensor), the second one is at the outlet of the “T draining” drain hose.
Chilling down water test #1.
Test 1 – set the water temperature on the chiller to 5 degrees C. The hoses were connected to the laser, but the laser itself was turned off.
| Time | Т tank | Т draining | Т chiller |
| 0:00 | 26,1 | 25,7 | 25 |
| 0:05 | 24,7 | 24,5 | 23 |
| 0:10 | 21,1 | 21,1 | 20 |
| 0:15 | 17,7 | 17,9 | 17 |
| 0:20 | 14,8 | 14,9 | 13 |
| 0:25 | 11,7 | 11,9 | 10 |
| 0:30 | 8,9 | 9,3 | 8 |
| 0:35 | 6,8 | 7,1 | 5 |
| 0:37 | 6,2 | 6,3 | 5 |
Water cools from 25 to 5 degrees C in 35 minutes at a rate of ~3 degrees C in 5 minutes.
Warming up water test #2.
For the second test, we heated the water to 25 degrees C. The warm-up time from 5 to 25 degrees is ~15 minutes.
Test 2 — Set the temperature on the chiller to 20 degrees and turn on the laser at full power.
Here I also recorded the temperature readings of the laser cooling circuit.
| Time | Т tank | Т draining | Т chiller | Т chilling circuit |
| 0:00 | 26 | 25,9 | 25 | 26,4 |
| 0:05 | 22,9 | 23,2 | 22 | 24,6 |
| 0:08 | 21 | 21,3 | 20 | 23,1 |
| 0:10 | 21 | 21 | 20 | 22,9 |
| 0:15 | 21 | 21,3 | 20 | 22,7 |
| 0:20 | 21 | 21,1 | 20 | 22,7 |