Embed Size (px)
Citation preview
Case Studies from Hungary
Laszlo TothMsc. Geologist, Project Manager
THE GEOTHERMAL HEAT PUMPS MARKET IN CENTRAL & EASTERN
EUROPE BRATISLAVA
12.11.2007.
- 1. History - HGD Ltd.
- 2. Raiffeisen Bank, Back Office
- 3. New Governmental District
AGENDAAGENDA
Introduce the HGD Ltd.
-1996 – foundation-2003 – first GSHP systems (family houses, car
saloons)-2005 – first large GSHP system-Large GSHP systems
- Oriental Herbs (325 kW, 60 BHE), 2005- Páty, Warehouse (610 kW, 120 BHE), 2006- Raiffeisen Bank (818 kW, 81 BHE), 2006- Pannon (960 kW, 180 BHE), 2007 – under construction
OFFICE BUILDING WITH GSHPOFFICE BUILDING WITH GSHP
Raiffeisen Bank, Back Office in Budapest
Geology Temperature log
OFFICE BUILDING WITH GSHPOFFICE BUILDING WITH GSHP
Raiffeisen Bank, Back Office in Budapest
A TRT was done to determine the thermal
properties of the ground
OFFICE BUILDING WITH GSHPOFFICE BUILDING WITH GSHP
Raiffeisen Bank, Back Office in Budapest
Thermal Response Test: λ = 2,61 W/mK
Drilling at RaiffeisenDrilling at RaiffeisenBank (total: 8,1 km Bank (total: 8,1 km
drilling)drilling)
OFFICE BUILDING WITH GSHPOFFICE BUILDING WITH GSHP
Raiffeisen Bank, Back Office in Budapest
Finished BHEsFinished BHEs
On top of the BHE field today On top of the BHE field today a parking lot is locateda parking lot is located
Heating control roomHeating control room
OFFICE BUILDING WITH GSHPOFFICE BUILDING WITH GSHPRaiffeisen Bank, Back Office in Budapest
3 large heat 3 large heat pumps for pumps for heating – heating – cooling, 1 cooling, 1 heat pump for heat pump for DHWDHW
OFFICE BUILDING WITH GSHPOFFICE BUILDING WITH GSHPRaiffeisen Bank, Back Office in Budapest
Savings: 20.500 €/year
Payback: 8 year
CO2 reduction:
283 t/year
STATE INSTITUTION WITH GSHPSTATE INSTITUTION WITH GSHP
New Governmental District in Budapest
STATE INSTITUTION WITH GSHPSTATE INSTITUTION WITH GSHP
New Governmental District in Budapest
Prospective drilling, 128 m deep
STATE INSTITUTION WITH GSHPSTATE INSTITUTION WITH GSHP
New Governmental District in Budapest
Drilling for water and observation wells
STATE INSTITUTION WITH GSHPSTATE INSTITUTION WITH GSHP
New Governmental District in Budapest
Geology Temperature log
STATE INSTITUTION WITH GSHPSTATE INSTITUTION WITH GSHP
New Governmental District in Budapest
-72 hours TRT
- Hydraulic tests (2 water wells,2 observation wells)
- pumping test, recovery test
- Hydraulic model (Processing Modflow)
- Calculation for number of BHE
Closed loop and water source heat pump system:- heating demand – completely covered
- cooling demand – partly covered (50%) ↓
remaining 50%? - air-source heat pump?
RESULTS:-Thermal Response Test: λ=1,98 W/mK → appr. 500 BHE (125 m)
→ total BHE length: 62.500 m!!!
- Hydraulic test: k=80 m/day → 2000 m3/day (groundwater)
↓
New Governmental District in Budapest
STATE INSTITUTION WITH GSHPSTATE INSTITUTION WITH GSHP
Planned tasks:
STATE INSTITUTION WITH GSHPSTATE INSTITUTION WITH GSHPNew Governmental District in Budapest
-More detailed heat transport model
-More detailed hydraulic model
-1-4 weeks long hydraulic test/pumping test - Examine the influence of the Danube
THANK YOU FOR YOUR THANK YOU FOR YOUR ATTENTION!ATTENTION!
1141 Budapest, Zsigárd u.21.Tel:+36(1)221-1458; Fax:+36(1)422-0004
