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Implementation of GSHP in Mediterranean Climate Part II GSHP in detail Brainstorming Conclusions Collaborations We are not alone! Regeocities www.regeocities.eu Same objectives Same target groups Co-funded for EU GroundMed www.groundmed.eu Technical Guidelines Geotrainet Training online Partners & Target Group Country and Partner Spain (AIDICO and UPV) France (BRGM) City or Region Region: Valencia region, Galician región City: Valencia Region Centre City: Orleans Deliverables Report with laws and regulation in Europe Report with national laws Spain France Good practice document Consolidated Database of new GSHP Free courses and seminars More GroundMed GroundMed Partners GroundMed Objective: Demonstrate climate SPF5 for Mediterranean Resources Demosites Technical Guidelines Monitoring Data Technical Issues Overview Exterior Circuit Heat Pump Interior Circuit Optimization Strategies Overview Exterior Circuit BHE - Drilling External Pump Technology Refrigerant Heat Exchangers HP Interior Circuit HVAC Internal Pump Buffer Tank Optimization Strategies Monitoring Temperature Compensation Geocooling Decoupling Tank Variable Speed Pumps PCM Tank Overview BHE - Drilling Types HE Open Loop Closed Loop Horizontal Vertical BHE - Drilling Types of drills Rotation Hammer Others (Laser, Plasma,…) BHE - Drilling Rotation Pneumatic Machine Need of consolidated well Speed 30m/d Uses air with foam to extract rocks Mud Extraction Soft Subsoil High Speed 20m/h Risk of polluting underground water with mud Cheap BHE - Drilling Hammer Pneumatic Fast speed For hard rocks No risk for underground water Sonic hammer hammer Less residue Not really extended yet Expensive BHE - Drilling Mud Extraction BHE - Drilling Considerations Consolidate well Inserting sand, concrete or bentonite U-Pipes – HDPE BHE - Drilling Balance Heat and Cooling BHE - Drilling Balance Heat and Cooling External Pump HP Technology Heat Pump Electrical Gas Compressor Single Tandem Inverter Type Swing Scroll Refrigerant Carnot Refrigerant Carnot R22 R134a R410a Heat Exchangers Heat Exchangers Heat Exchangers Braze plate HE Plate and Gasket HE Heat Exchangers Fouling and clogging Internal Pump Buffer Tank Helps avoiding to use the HP irregularly. HVAC Low temperature! Optimization Strategies Select a low operating temperature for heating (35 -40 °C) Select a high operating temperature for cooling (8 –10 °C) If possible, use temperature compensated set points Consider heat pump capacity and capacity steps, consider hybrid system Design the system carefully for a low total heating/cooling load with some care to take for considering the balance between heating and cooling load for the ground source, Design carefully the hydraulic system with an adapted control pump strategy to save energy because of auxiliary energy consumptions Design BHE for high/low temperature, low pressure loss and low thermal resistance Monitoring Monitoring Temperature Compensation Temperature Compensation Geocooling Geocooling Decoupling Tank Optimal Water Flow Rate Optimal Delta T Variable Speed Pumps Variable Speed Pumps IC and EC Pumps Optimization PCM Tank Phase Change Materials To use it in peak loads Avoid Expensive Tariff Homework Read GroundMed Guidelines http://www.groundmed.eu/uploads/ media/Deliverable_9.8_Design_Guide s_rev2.pdf Administrative Issues Laws and regulations Europe Spain & France Example: Stockholm Regeocities Data Base proposal Europe Initial Situation Europe Laws Europe Administrative procedure Realizing a geothermal project requires a variety of different permits. Complex, long, and sometimes unnecessary burdensome procedures can significantly delay project development and investment in the geothermal sector. Though having several competent administrative bodies to assess an application for geothermal licenses is fair, a one stop-shop process should be the rule for each phase of a project. Europe Planning Technical Specifications The RES Directive also requires member states to recommend to all actors, in particular local and regional administrative bodies, to ensure equipment and systems are installed for the use heating and cooling from renewable energy sources when planning, designing, building and renovating residential (or industrial) areas. Member states should clearly define any technical specifications which must be met by renewable energy equipment and systems, including SGE systems, in order to benefit from support schemes (Art. 13 (2) of the RES Directive). Information and Training Lack of awareness and information as well as shortage of skilled workers is one of the market failures preventing the further market uptake of SGE. Article 14 of the RES Directive addresses these issues. Europe Calculation of renewable information from heat pumps A heat pump is a device allowing the transformation of heat from a lower temperature level to a higher one, by using external energy. Promotion of renewable energy and energy efficiency in buildings. EPB Heat pumps (including GSHP) are covered under both Ecodesign and energy labelling legislation, which are two of the most effective policy tools in the area of energy efficiency. Eco-design and energy labelling France & Spain National Building Codes France: Thermal Regulation of 2012 for new constructions ( RT2012) give Maximal Consumption of primary energy for the heating, the domestic hot water, the cooling, the lighting and the auxiliaries. Spain: in the Technical Code of Construction there are requirements related to renewable energies, exclusively for the production of hot water, in most of the case the option for fulfilling the requirement (60% of the HDW must be provided by renewable systems) is achieved by means of installing thermo-solar panels which are generally regulated with local laws, as for example the “Ordenanza Municipal de Captación Solar para Usos Térmicos”. France & Spain National Building Codes France: Professionals considered that used calculation are not favorable to the GSHP. No specific goal for SGE. Spain: Lack of clear specifications, only HW considered. France & Spain Tools France & Spain Summary No monitoring is mandatory in both countries France & Spain Summary France & Spain Summary France & Spain National report France: http://regeocities.eu/wpcontent/uploads/2012/12/REGEOCITIES FrenchReport_final.pdf Spain: http://regeocities.eu/wpcontent/uploads/2013/09/SpanishNational-report_October-2012_SP.pdf Example: Stockholm Online application for end-users Regeocities resource Laws and regulations for the city of Stockholm National legislation Borers sent the information that is required by law SFS 1985:245 (drilling Protocol) to the geological national service so that they have the information from the probe When installing a geothermal heat pump is necessary to notify the municipal panel However, the municipality may have ordinances that prescribe that municipal authorization is also required for all of the installation for some of its parts where aspects should protect health or environmental. Residents have the right to express their points of view if drilling is close to their property or if the system may interfere with the operation of their own geothermal systems. Who can make the request online? Applicants wishing to apply for the registration of the online installation must ensure that the installation complies with the following requirements: Closed loop BHE 1 probing or drilling There are no other wells on the property All wells, including inclined probes, rest inside of limits of the installation property It will give service to a single building The capacity of the installed heat pump is less than 20 kW In the case that does not meet one of these requirements it would be necessary to make the request by means of paper formats Before filling the request To obtain permission to drill in the city of Stockholm is required that: The drilling company must be certified as Drillers by SITAC The drilling and the installation must comply with the Guide "Normbrunn-07", a protocol where the steps are specified for a drilling Consult to companies that install systems in the subsoil to prevent incidents through www.ledningskollen.se At the same time the city of Stockholm sent their inquiries to: neighbors, if there is, express their opinion on installing Water, gas, telecommunications or distributors of district companies to know the location of their systems in the area Step 1 – Localization of the well After inserting a valid property without any BHE the user will be redirected to an interactive map Pulsa el boton Verde para marcar donde desee perforar Sondeos próximos Línea de límites de la propiedad. Si pulsa sobre un sondeo existente en el mapa, podrá ver el nombre de la propiedad, la profundidad y el ángulo del sondeo. Entrada dondeo Punto central en sondeos inclinados Base de sondeo inclinado Zona de influencia del sondeo Zona de influencia de sondeos próxomos Localización desconocida de sondeo Límites de la propiedad Permisos para edificiación en la propiedad Su sondeo y su zona de influencia se muestran en verde. El circulo rojo tiene un radio de 10 metros y muestra la distancia mínima permitida a un sondeo próximo. En el caso de que la localización de su sondeo esté muy próxima a otro sondeo cercano recibirá un mensaje de error para que cambie la ubicación. Cuando usted planee el sondeo deberá decidir la profundidad y el ángulo de perforación. Entrada dondeo Punto central en sondeos inclinados Usted recibirá la longitud horizontal de su sondeo (en caso de que sea con angulo de perforación) y las coordenadas de su punto de sondeo. Base de sondeo inclinado Zona de influencia del sondeo Zona de influencia de sondeos próxomos Localización desconocida de sondeo Límites de la propiedad Permisos para edificiación en la propiedad Tanto la entrada del sondeo como su proyección en profundidad deberán estar dentro de los límites de la propiedad. En caso contrario recibirá un mensaje de error advirtiendo sobre ello. Entrada dondeo Punto central en sondeos inclinados Base de sondeo inclinado Zona de influencia del sondeo Zona de influencia de sondeos próxomos Localización desconocida de sondeo Límites de la propiedad Permisos para edificiación en la propiedad Cuando el emplazamiento sea correcto mensaje Whenrecibirá placingun the borehole correctly, indicandoselo you will get a message saying that this is a possible location for your borehole. Entrada dondeo Punto central en sondeos inclinados Base de sondeo inclinado Zona de influencia del sondeo Zona de influencia de sondeos próxomos Localización desconocida de sondeo Usted podra continuar su solicitud en este punto pulsando aqui. Las infraestructuras subterraneas serán comprobadas una vez enviada su solicitud. Límites de la propiedad Permisos para edificiación en la propiedad Next steps in Stockholm regulations and laws GSHP Size and capacity Refrigerant Pipes and collector Type of heat transfer Energy coverage Driller and installer Certification number and contact information Contact information is optional but makes further steps easier Contact information of the owner Financial Issues Investment National Incentives Insurances Investment SGE has to compete against aerothermal energy Main problem, wells. BHE. COP3 vs COP5 Lifespan National Incentives National Incentives Insurances In general, all stakeholders involved in the construction sector have their own civil damage insurance. This insurance could occasionally cover any damage or unsatisfactory work related to SGE installation. Insurances France has a dedicated system to cover the geological risk of not finding the resource for the ground water heat pumps systems. Insurances Citizen information Misinformation There is a little information regarding GSHP for the end user. Almost all people think about deep geothermal energy and doesn’t know what’s SGE. We must inform end user with understandable concepts. Information References References www.geopimed.eu www.regeocities.eu www.geotrainet.eu www.groundmed.eu www.igme.es www.geoplat.org www.googlenergy.org
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