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GERES presentation
2.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 1hIp://geres-‐gmbh.com InhalteInhalte 1. The coiled GERES® heat exchanger 2. Focus in the development of the system 3. Pipe properties 4. Ground probe details (Dimensions und weights) 5. The ground probe in the borehole 6. Comparing ground probe systems 7. Workflow with the GERES® -ground probe system 8. Heat Exchanger Cluster - A new development 9. Heat Exchanger Cluster - Applications 10. Conclusion
3.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 2hIp://geres-‐gmbh.com The coiled GERESThe coiled GERES®® heat exchangerheat exchanger Which solution does the GERES system offer? Confronting depth delimitations, a solution until 35 m [115 ft] maximum depth Best utilization of the energy in the geology Robust pipe material Multi-purpose heat exchanger, can be used in a different medium as in the geology (see, river, lake, sewage treatment plant) Low compression effort Low effort laying and connecting the pipes Facing volume delimitations - saving 60% glycol-mixture 100% impermeability against gases in the soil This properties are the best investment protection, the reducing of guarantee risk, and best possible protection of the geology
4.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 3hIp://geres-‐gmbh.com Focus in the development of the systemFocus in the development of the system Which was the focus GERES ® had in the development of the system? 1. Security: From the beginning GERES was looking for a composite pipe. Why? Applications of force or punctual pressure on the pipe are well absorbed, because the pressure on the exterior layer is distributed on a larger surface in the next layer. A further characteristics of the pipe, it expands minimal under pressure and have no crack propagation. The ground probe consists out of one pipe, which means you have no joints in the soil The ground probe is 100% impermeable against gases in the soil Die GERES® -ground probe can be sinked unfilled, which minimize the the arising forces during the sinking process and prevent damages on the ground probe 2. Optimal energy absorption: Good thermal conductivity of the pipe By the coil form we achieve a turbulent-similar flow in the ground probe The coil of the ground probe is adjustable and thus you can adapt the ground probe to the individual geology to obtain the optimal energy extraction By the spiral form, the influence of the “cold” conductor on the “heated” conductor is minimized 3. Optimization in the workflow: The GERES® -ground probe can be sinked unfilled For connecting pipes we use a press-fitting-system which make you independent from meteorological conditions Reducing the compression effort because the pipe expands under pressure very minimal The calculation of loss pressure is simplified because the ground probes have standard dimensions
5.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 4hIp://geres-‐gmbh.com Pipe propertiesPipe properties A confrontation 100 Years / 30 bar100 Years / 15 bar100 Years / 15,7 barat 20°C [68°F] 100 Years / 26 bar100 Years / 13,3 bar50 Years / 13,5 barat 30°C [86°F] 100 Years / 22 bar100 Years / 11,8 bar50 Years / 11,6 barat 40°C [104°F] 100 Years / 20 bar100 Years / 10,5 bar15 Years / 10,4 barat 50°C [122°F] 0,025 mm / (m*K) [0.00098*10-6 in / in *°F] 0,15 mm / (m*K) [0.0059*10-6 in / in *°F] 0,20 mm / (m*K) [0.0787*10-6 in / in *°F] Coefficient of linear thermal expansion No malfunctionNo malfunction200 - 2000 hCrack propagation 50 Years / 14 bar--at 95°C [203°F] 0,0004 mm [0.000015 in] 0,007 mm [0.0027 in] 0,04 mm [0.0014 in] Surface roughness 50 Years / 16 bar15 Years / 6,9 bar-at 90°C [194°F] at 80°C [176°F] at 70°C [158°F] at 60°C [140°F] Creep values 25 Years / 20 bar25 Years / 7,6 bar- 50 Years / 18 bar50 Years / 8,5 bar2 Years / 6,2 bar 50 Years / 20 bar50 Years / 9,5 bar5 Years / 7,5 bar PE-RT - AL - PE-RT (GERES®-probe)PE-XaPE-100
6.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 5hIp://geres-‐gmbh.com Ground probe detailsGround probe details a.) 600 L/h at 300 mbar [131.98 gal/h ] b.) 480 L/h at 250 mbar [105.58 gal|h] a.) 540 L/h at 300 mbar [118.78 gal/h] b.) 460 L/h at 250 mbar [101.18 gal/h] c.) 360 L/h at 200 mbar [79.18 gal/h] a.) 600 L/h at 300 mbar [131.98 gal/h ] b.) 700 L/h at 400 mbar [153.97 gal/h] Flow rate (Water/Glycol-mixture 27%) 14 L [3.07 gal]14 L [3.07 gal]32 L [7.03 gal]Glycol-mixture 55 m [180 ft]55 m [180 ft]93 m [305 ft]Pipe length --20 kg [44 lb]Additional weight 22,5 kg [49.6 lb]35,5 kg [78.2 lb]78 kg [172 lb]Entire weight -13 kg [28.6 lb]10 kg [22 lb]Casted weight 8,5 kg [18,73 lb]8,5 kg [18,73 lb]16 kg [35.27 lb]Pipe weight 300 mm [11.8 in ]125 mm - 130 mm [4.9 in - 5.1 in ]150 mm - 155 mm [5.9 in - 6.1 in]Ground probe diameter 3 m - 8 m [10 ft - 26 ft]6 m - 23 m [19 ft - 75 ft]10 m - 34 m [32 ft - 111 ft]Telescopic (installation depth) 10 m [32 ft]23 m [75 ft]36 m [118 ft] (+ add. Weight)Depth 22 mm x 2,0 mm [0.86 in x 0.078 in]22 mm x 2,0 mm [0.86 in x 0.078 in]25 mm x 2,0 mm [0.98 in x 0.078 in]Pipe dimension Energy pile 10 m [32 ft]Ground probe 23 m [75 ft]Ground probe 35 m [115 ft]Properties
7.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 6hIp://geres-‐gmbh.com The ground probe in the boreholeThe ground probe in the borehole GERES® -ground probe (35 m - 115 ft) and additional weight Parts of the ground probe: a) 1 x pipe b) Casted weight c) 1 x additional weight Facts about the ground probe in the borehole: First 5 m [16 ft] no coils Between 5 m and 34 m [16 ft - 111.5 ft] coiled ground probe The coiled part of the ground probe is at the exterior part of the borehole, which improve the energy absorption Facts borehole (in some countries very relevant aspects for authorities): At the first 5 m [16 ft] are used 2 m [6.5 ft] pipe/meter Between 5 m and 34 m [16 ft - 111.5 ft], are used 2,75 m [9 ft] pipe/meter Between the spreaded coils the grouting material can be better distributed More grouting material as used at a Duplex ground probe, which makes the filled borehole more stable The composite pipe expands very low under pressure, which cause less motion in the filled and cured borehole and makes the cured borehole more stable By the spiral form is the ground probe more in the exterior part of the borehole which offer a more homogenous cured borehole, because of the more of grouting material in the interior of the borehole which is seamless connected to the grouting material between the coils unto the borehole wall 4 walls to the geology (3 layers of the composite pipe and the cured borehole) 1 pipe, no joints Minimal reciprocal influence Turbulent-similar flow Can be unfilled sinked 100% impermeability against gases Switching arc in the casted weight Distance between the spreaded coils, 25 - 30 cm [9 in - 11.8 in] Additional weight
8.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 7hIp://geres-‐gmbh.com Comparing ground probe systemsComparing ground probe systems A low thermal resistance in the drilled borehole, because the coiled segment is in the exterior part of the borehole. A high thermal resistance in the drilled borehole, because the pipes are in the middle of the borehole. If the ground probe is sinked unfilled, the probability of scoring the pipes are very low. If the ground probe face resistance in the borehole, the force effect is on the exterior layer (PE-RT) of the pipe. The force effect will be forwarded in reduced form, on a larger surface on the second layer (Al). The Aluminum layer which also absorb a part of the received force, will forward a lower part of the received force, on a larger surface to the interior layer (PE-RT). [A common characteristic of composite materials is to distribute the energy of arising forces on larger surfaces to incorporated layers. This characteristic prevent possible damages.] No score propagation. The pipe-material is sensitive to notches , scoring and crack propagation. 8 x lower dilatation: 0,025 mm / (m*K) [0.00098*10-6 in / in *°F] Coefficient of linear thermal Expansion: 0,20 mm / (m*K) [0.0787*10-6 in / in *°F] The coiled part of the ground probe cross just with the exterior part of the pipe the sharp edges. If the ground probe is sinked unfilled, it will slide and rotate along the edges because there is no weight behind. Arising scratches can be 2-4 mm length at the exterior part of the coiled part of the ground probe. Sharp edges in the borehole can damage the pipe material, along a big distance, because the pipe cross the edges during the complete sinking. The coils can be adjusted to the individual geology.Not adjustable to the geology. 100 % diffusion sealed against gases in the soil.Penetrable for gases in the soil. Because of the coiled construction, a turbulent similar flow.Because of the construction, a laminar flow in the pipe. Can be sinked without being filled.Can be sinked just filled. Low reciprocal influence, because the coil is in the external area of the borehole. The straight pipe segment, in the interior of the coil, cross the coiled segment at 3-4 points per meter. Reciprocal influence. 1 Pipe, no joints in the geology.4 Pipes, 4 joints in the geology. GERES ® -ground probeDuplex-ground probe
9.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 8hIp://geres-‐gmbh.com Workflow with the GERESWorkflow with the GERES®® -ground probe system-ground probe system - 10 Min. 10 bar (Temperature compensation), - 30 Min. 10 bar (Final compression check) - Simplified hydraulic calculation, since the probe length is always alike - Small filling and exhaust expenditure, due to smaller volume contents (only 40% of the volume of a PE 100 duplex probe) 6. Compression check of the entire installation - Connecting pipe is fast installable without the need of moldings, with small bending radii (5 x Ø) - Connecting pipe is fast installable with a press-fitting-system - Modular distributor 5. Connecting pipe transfer and distributor installation - No mounting of spacer, because the probe is inherently stable - The probe can be unfilled sinked - a weight is already installed in the factory - Insensitively to notches, scoring and crack propagation - Easily installation of a re-usable injection pipe/tube by the large interior of the probe 4. Sinking the probe - Adjusting the probe on the drilling depth - Visual check, no leakage test necessarily 3. Probe preparation for appropriate depth - Protection of deeper water layer - Minimized drilling risk, because the borehole is never deeper as 36 m [118 ft] 2. Drilling - Use of small drilling equipment; close space conditions are well attainable1. Setting up the installation site
10.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 9hIp://geres-‐gmbh.com Heat Exchanger Cluster - A new developmentHeat Exchanger Cluster - A new development Cluster short description Supporting construction out of stainless steel, Distributor square tube 40/40/3 mm [1.57/1.57/0.11 in], 6 angle supports, 36 tubular supports for the heat exchanger, 9 heat exchanger out of composite pipe Support material Stainless steel : 1.4571 Technical data heat exchanger Tube length / heat exchanger: 55 m [180 ft] Composite pipe: 22 x 2,0 mm [0.86 in x 0.078 in] Heat-abstraction capacity / cluster : 12,000 W at a temperature difference of 3 K to the medium in which the clusters are used Loss of pressure : 270 mbar at 4000 L/h [880 gal/h] Connections 18 Pressing connections 22 x 3/4" AG to the distributor Distributor : 1" AG Dimensions Width: 3000 mm [118 in] Height: 2200 - 3000 mm [86.6 - 118 in] Ø heat exchanger: 300 mm [1.18 in] The distributor tubes must be connected by the Tichelmann system.
11.
© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 10hIp://geres-‐gmbh.com Heat Exchanger Cluster - ApplicationsHeat Exchanger Cluster - Applications The heat exchangers used in the clusters are like the GERES® heat exchanger for geothermal use, out of the same composite pipe. The same composite pipe serves at this specific usage also for energy extraction out of clarified and unclarified liquids. The heat exchangers used in the GERES®-clusters are made out of one pipe and seamless in the used medium. PE-RT Adhesive Aluminium (centred; 0,3 mm - 11.8 th) Adhesive PE-RT There are many possibilities to obtain energy for solutions driven by heat pump technology! GERES® GmbH develop a cluster of heat exchangers which can be used in a liquid medium. Lakes, Rivers, Sea, Sewage treatment plants, Textile industry, Chemical industry, Food industry to name some of the possible opportunities, where the clustered heat exchanger offer a good and efficient service its operators. The particular advantage of the clusters is that reservoirs do not have to be rebuilt or modified, because the register fit into each bowl and do not need a clarified liquid. When used in unclarified liquids the cluster can be easily cleaned, using a high pressure lance, from the bowl edge. The clusters can be also used in aggressive media. In the case of specific use in an aggressive media, we recommend to contact us to adapt the material for the supporting construction to the specific requirements.
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© GERES GmbH,
Meine, An der Feuerwehr 11, 38527 Meine, Tel. 05304 -‐ 90 12 31, info@geres-‐gmbh.com 11hIp://geres-‐gmbh.com ConclusionConclusion Does GERES ® offer more then a product? GERES® GmbH offer its customers, engineer-offices and drilling partners beside the optimized products reliable technology. Every customer of GERES will consider to plan his projects accurate, optimized in costs and benefit. But also being ambitious in delivering sustainable services. A system with good abstraction capabilities is one of the persistent impressions. The partner of GERES® focus their attention also at the business relevant aspects: 1. To install the ground probes easy as possible 2. So fast as possible. 3. The used material should exclude so good as possible guarantee claims. 4. GERES® GmbH offer its customer a multi-purpose system which can be used also in the sea, a river, a lake, or sewage treatment plant.
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