RECURSOS GEOTÉRMICOS DE PORTUGAL José Martins Carvalho. 1º Seminário da Plataforma Portuguesa de Geotermia Superficial PPGS 8 Julho 2013, LIsboa

Transcrição

1 RECURSOS GEOTÉRMICOS DE PORTUGAL José Martins Carvalho 1º Seminário da Plataforma Portuguesa de Geotermia Superficial PPGS 8 Julho 2013, LIsboa

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3 SÃO MIGUEL GEOTHERMAL PROJECT Ribeira Grande geothermal field Two geothermal power plants Sete Cidades Ribeira Grande geothermal field Ribeira Grande Fogo volcanic complex Nordeste Ponta Delgada Furnas Povoação

4 SÃO MIGUEL GEOTHERMAL PROJECT Ribeira Grande geothermal field

5 SÃO MIGUEL GEOTHERMAL PROJECT Pico Vermelho Pilot Plant

6 SÃO MIGUEL GEOTHERMAL PROJECT Pico Vermelho Pilot Plant : Surface exploration and exploratory drilling of the Ribeira Grande geothermal field : Exploitation of the pilot plant Manufacturer: Mitsubishi Nominal capacity: 3 MW Steam consumption: 56 5,1 bar.a Operating results: 84 GWh in 136 k hours Pico Vermelho power plant was operated for 25 years and served as a valuable training school for the technical staff in the operation and maintenance of the wellfield and generation equipment.

7 SÃO MIGUEL GEOTHERMAL PROJECT New Pico Vermelho Plant

8 SÃO MIGUEL GEOTHERMAL PROJECT Ribeira Grande Plant

9 SÃO MIGUEL GEOTHERMAL PROJECT Production results 23 MW (Carlos Bicudo 2012)

10 SÃO MIGUEL GEOTHERMAL PROJECT Production results % of Generated power (GWh) Fuel Hydro Geothermal S. Miguel Electrical needs 56% 5% 39%

11 Thermie Project (1994) Abandoned green house (operating from 1997 till 2005) formerly heated by the geothermal efluent

12 Total installed heat capacity of the systems was 172 kw.

13 Central Heat Exchanger

14 TERCEIRA GEOTHERMAL PROJECT Deep drilling

15 TERCEIRA GEOTHERMAL PROJECT Pico Alto geothermal field

16 TERCEIRA GEOTHERMAL PROJECT Well testing O projecto está a ser reavaliado (prospecção detalhada e ensaios em 4 poços geotérmicos) prevendo-se, para já, a hipótese de instalação de uma central de 3 MW

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18 Em 1987 a FORÇA AÉREA PORTUGUESA e a ACAVACO decidiram estudar as sondagens de petróleo da CPP da região de Lisboa, numa óptica geotérmica

19 Em 1987 a Força Aérea Portuguesa e a ACAVACO decidiram estudar as sondagens de petróleo da CPP da região de Lisboa, numa óptica geotérmica

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23 BALUM AIR FORCE HOSPITAL GEOTHERMAL PROJECT

24 BALUM AIR FORCE HOSPITAL GEOTHERMAL PROJECT

25 BALUM AIR FORCE HOSPITAL GEOTHERMAL PROJECT Metade das economias da operação resultavam da produção de água potável

26 dizia-se (dizia eu) em 1990.

27 Termal springs in Portugal (mainland) Source: DGEG,

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29 CHAVES 100 m depth >40 l/s when drilling DTH 76ºC

30 Geothermal swimming pool (15 l/s-76 ºC)

31 EQUIPAMENTOS GEOTÉRMICOS DE 1982

32 CHAVES (15 l/s-76 ºC) Geothermal heated hotel

33 CHAVES (15 l/s-76 ºC) Geothermal heated hotel

34 1989- A Demonstration Project financed by the EC European Directorate for Energy (DXVII), including two geothermal wells and a small district heating network aborted due to political changes. The first tranche versed by the EC was already in a Chaves bank.

35 Chaves Greenhouse Financed by JOULE Project Operates during a few months ca 1990 Abandoned

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38 Piscicultura em Monção Abandonada por mudança politica na autarquia

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40 Geothermal Energy Developments in Portugal Portugal (Mainland) Carlão Thermal Bath Carlão Greenhouse Financed by JOULE Project Operational from 1990 to 1993 Abandoned by the thermal spa owner

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42 S. Pedro do Sul Spa (former spring 9 l/s, 68ºC)

43 THERMIE Program S. Pedro do Sul Spa; new well, 1998, (15 l/s, 68ºC)

44 Former spring

45 Vau Pumping test (40 l/s, 67 ºC)

46 S. Pedro do Sul Geothermal Field Vau Pumping test 40 l/s, 67ºC

47 Geothermal greenhouse in operation since 1981 at Vau, S. Pedro do Sul

48 Vau GREENHOUSE

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50 Caldas de Manteigas 42ºC Several Feasibility studies High demand residual geothermal utilisation

51 Caldas da Rainha 34º5 ºC Para além da balneoterapia não há aproveitamento geotérmico para outros usos directos Excedentes superiores a 12 l/s

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53 Caldas de Moledo 45ºc Feasibility study Location in the Douro Valley No geothermal utilisation

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57 Geothermal is good to supply existing demand but not suitable to induce new users..avoid voluntarism when looking for promoters

58 Deep Geothermal projects New concessions granted in 2010 to EGS investigations. is the investment sufficient?

59 GSHP Portugal, 1996

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62 T(ºC)=0,021 x Prof(m)+17,7

63 In conclusion: High temperature geothermal resources in Portugal are limited to the volcanic islands of the Azores, where electric power has been produced since Low-temperature geothermal resources are exploited for direct uses in balneotherapy, small space heating systems and geothermal heat pumps. Main district heating projects are operating at Chaves in northern Portugal and S. Pedro do Sul, in central Portugal. There is a single greenhouse project in S. Pedro do Sul covering 2 ha, for raising tropical fruit (mainly pineapple). About 30 spas are operating in the country, but most are only open in the summer. In 2010, private investors obtained concession rights for exploration of geothermal resources for a total area of 2,655 km 2, aiming for future development of small scale EGS generation projects Several dozen small geothermal heat pump installations are operating throughout the country, but this application is not yet fully recognized as a geothermal resource by the Portuguese administration.

64 The data on the various geothermal utilizations are: 1.5 MWt and 12.9 TJ/yr for district heating; 1.0 MWt and 13.8 TJ/yr for greenhouse heating;and, 25.3 MWt and TJ/yr for bathing and swimming. No estimates are available for geothermal heat pumps, thus we estimate 24 installations at 12 kw, a COP of 3.5 and 1,500 full load operating hours per year, gives 0.3 MWt and 1.1 TJ/yr. This gives a total for the country of 28.1 MWt and TJ/yr (Cabeças et al., 2010). Actualmente a potência instalada em Portugal com GSHP já é superior à correspondente aos usos directos nos polos termais

65 Small is beautifull boa sorte PPGS José Martins Carvalho