Innovative Products

Our partnership with REHAU opens the opportunity to offer the UK market various innovation driven technologies in heat collection products.

PE-Xa Coils

Advantages PE-Xa collector pipe:

1. Resistant to puncture loads, notches and grooves – allowing the pipe to be backfilled with excavated material (PE 100 requires a sand bed), therefore reduction of installation time and costs
2. Better thermal efficiency of excavated material compared to a dry sand bed
3. Tight bending radii, therefore easier installation as less space is required
4. High operational reliability of PE-Xa pipe
5. Minimal pressure losses due to smooth pipe inner surface

Helix Probe

RAUGEO Helix Probes PE-Xa are ideal for use in both new builds and refurbishments.  They are the optimum choice if only a small land area is available and probe drilling is not possible, e.g. for geological reasons or if it is not financially possible.

Predominantly aimed at low energy housing, with requirements of 8KW or less.

A 5m deep hole is created with an Auger drill, into which the Helix probe is then installed and backfilled.  The distance between each probe is 3 - 4m.  The specially designed PE membrane ensures the fixed diameter of the probe facilitating even energy extraction.

Making excess heat storage a reality in this increasingly required feature of new builds.

The advantages of the RAUGEO Helix Probe PE-Xa:

• Use in new builds and refurbishments
• Extraction performance of up to 700 W/Helix Probe in Sandy clay (Wet)
• Simple and cost effective drilling possible
• Ideal where space is at a premium
• Defined pipe spacing and probe diameter using special PE membrane
• The high temp resistance of up to plus 95deg C makes a combination with solar energy possible – even retrospectively

RAUGEO Helix probe outputs:

The estimated outputs per Helix probe for different ground conditions are provided in the table below (based on 1800h operating hours).

Example Helix probe calculation

Assumptions:

Wet sandy clay (GW at 3m): 500W / Helix probe

COP of heat pump:               4

Operating hours:                  1800h/a

No. of probes required =      Evaporator output (W)

                                               _______________________

                                                                 Output per Helix probes (W)

See the bottom of this page for a PDF document for more infomation on the Helix Probes.

PE-Xa Probe

The REHAU PE-Xa probes, where only the ultimate solution will suffice.  Extremely tough and able to handle temperatures up to 95°C (perfect for excess heat storage such as solar - increasingly required feature of new builds); the PE-Xa really is the next generation of probes.

Furthermore, such is the strength and durability of the PE-Xa probes we are able to offer a £10,000 consequential loss per PE-Xa probe installed. Contact us for more details.

For more infomation on our PE-Xa Probes please click here to be taken to the PE-Xa Probes page.

RAUGEO Energy Piles

Energy piles provide a cost-effective alternative to probes if the building is already including foundation piles as no extra drilling needs to be carried out.  Piles are typically between 10-20m deep, depending on site conditions. Ground-source pipework can simply be integrated into the pile with cable ties.

PE-Xa is ideal for energy piles as the tight bending radius of PE-Xa removes the need for joints in the pile, therefore eliminating any potential leakages.

PE100 RC Pipe (Resistance to Crack)

A fundamental and critical component of any efficient performing Ground Source Heat Pump System are the collector pipes where pipe protection and longevity are paramount.

It's widely accepted in terms of good pipe laying practice that sand should be employed both below and above the pipe to protect from sharps as even PE100 Pipe Material is vulnerable to rapid creep if point load damage occurs.

Whilst sand does offer the potential for improved thermal conductivity in poor soils it has become the default position on most installs to lay a sand bedding as traditionally pipe needed protection from the variants of “as dug material” thereby always adding that cost into the job in material and significant labour time.

Go Geothermal Limited can offer you a solution, PE100 RC.  Offering low notch sensitivity and superior resistance to point loading and slow crack growth (SCG), the RC material avoids the potential for pipe tears even when point loads caused by rocks occur.

By utilising this pipe in the correct soil conditions NO sand back fill is required!  This reduces capital outlay and significant labour time and plant on site.

Go Geothermal are pleased to offer this product as yet another step in the improvement of the technical quality of Ground Source materials.

Relavant pdf
	Helix Probe Brochure	View pdf