Timeline for How to periodically shut down a recirculating hot water solar thermal system
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Feb 24, 2020 at 12:05 | comment | added | mart | Is there an expansion vessel present in the system? How is overpressure protection achieved? Are there air vent at all high points, automatic or manual? | |
| Feb 24, 2020 at 11:47 | comment | added | Phil Sweet | Can you post some actual numbers? What is the collector area, what is the flow rate in the primary loop. What does the thermal load vs time curve look like. Is this industrial, residential, what are you actually doing? | |
| Feb 24, 2020 at 7:46 | comment | added | idkfa |
water in the hot water tank exceeds 95C and drain procedures are activated to prevent steam generation/excessive pressures. To my understanding the water in the tank will never boil, that would mean that the incoming water already exceeds 100 °C and thus the water would evaporate in the feeding pipe. I guess the water is drained to prevent 95 °C water being fed to the solar panel and thus being heated too much there. Is the drained water replaced with cold water? This is just for my understanding, solar mike is on point with his answer if you want to reduce drained water amounts.
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| Feb 23, 2020 at 21:17 | answer | added | Solar Mike | timeline score: 2 | |
| Feb 23, 2020 at 20:15 | review | First posts | |||
| Feb 23, 2020 at 21:01 | |||||
| Feb 23, 2020 at 20:13 | history | asked | NoumanQ | CC BY-SA 4.0 |