Hello,
We want to heat our home using a brine water heat pump. As an energy source, we plan to use energy baskets through which both rainwater and treated sewage water from the septic tank will infiltrate. Infiltration is permitted. The groundwater level is such that the baskets would be submerged in the groundwater at an installation depth of about 4m (13 feet), if I am not mixing up any terms here. The water dispersal is then planned to be via soakaways.
Good idea or rather a pointless plan?
Thanks for your thoughts and opinions!
We want to heat our home using a brine water heat pump. As an energy source, we plan to use energy baskets through which both rainwater and treated sewage water from the septic tank will infiltrate. Infiltration is permitted. The groundwater level is such that the baskets would be submerged in the groundwater at an installation depth of about 4m (13 feet), if I am not mixing up any terms here. The water dispersal is then planned to be via soakaways.
Good idea or rather a pointless plan?
Thanks for your thoughts and opinions!
Interesting idea!
EnergieKörbe refers to suction baskets with coarse/fine filters for intake or storage tanks (fresh water) standing in the groundwater (= heat exchanger)?
That sounds like quite a bit of maintenance, so everything should remain easily accessible.
What volume of available groundwater supply are you planning for in cubic meters?
You can harvest about 1.2 kWh/m³*K.
With an estimated water temperature of 12°C (54°F) in winter, 1 cubic meter of water will start to freeze after extracting approximately 14 kWh, unless enough warm water flows in from the sides.
Interesting, but the sizing seems a bit vague to me.
If the heat pump can be reversed, you could introduce the waste heat from the A/C there in summer.
EnergieKörbe refers to suction baskets with coarse/fine filters for intake or storage tanks (fresh water) standing in the groundwater (= heat exchanger)?
That sounds like quite a bit of maintenance, so everything should remain easily accessible.
What volume of available groundwater supply are you planning for in cubic meters?
You can harvest about 1.2 kWh/m³*K.
With an estimated water temperature of 12°C (54°F) in winter, 1 cubic meter of water will start to freeze after extracting approximately 14 kWh, unless enough warm water flows in from the sides.
Interesting, but the sizing seems a bit vague to me.
If the heat pump can be reversed, you could introduce the waste heat from the A/C there in summer.
I am not an expert in the details and therefore cannot provide specific values; the idea came to me based on my basic understanding of physics. We are building in a marsh area.
The baskets are simple metal cages, 3-4 meters long (10-13 feet), to which the absorber pipes are attached. Another idea would be to design everything as an infiltration shaft and place the baskets underneath. Whether something like this is even feasible is beyond my knowledge; we were only told that rainwater infiltration through absorber mats would increase efficiency.
The baskets are simple metal cages, 3-4 meters long (10-13 feet), to which the absorber pipes are attached. Another idea would be to design everything as an infiltration shaft and place the baskets underneath. Whether something like this is even feasible is beyond my knowledge; we were only told that rainwater infiltration through absorber mats would increase efficiency.
The baskets or collectors regenerate through the water, which is good so far. Installing a soakaway above them is therefore not a bad idea.
Whether this whole setup is worthwhile, however, is a completely different matter. Proper design, heat load calculation, and so on are necessary for that.
Whether this whole setup is worthwhile, however, is a completely different matter. Proper design, heat load calculation, and so on are necessary for that.
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