Embed Size (px)
Citation preview
GEO-HEAT CENTER
History, Scope of Services and Activities
Oregon Institute of TechnologyKlamath Falls, OR 97601
http://geoheat.oit.edu
BACKGROUND
• Established in 1975• Based on the Oregon Institute of
Technology campus – a geothermal heated campus - 192°F water
• Klamath Falls – a geothermal community – 600 wells – district heating system heating 20 buildings, snow melt system, 4 acres of greenhouses, swimming pools.
• 86 MWt capacity – 200 billion Btu/yr
WHAT WE DO BEST
• Information dissemination, outreach and technical assistance activities on:– Direct-use of geothermal energy (space heating and
cooling, greenhouse and aquaculture pond heating, industrial uses, spas and swimming pool heating)
– Geothermal heat pumps (ground-source heat pumps)– Small scale/low temperature power plants
• Feasibility studies, preliminary design, cost analysis, legal/institutional issues, site visits, trouble shooting, advice on use of resources
SERVICES I
• Information dissemination– Data base of 12,000 wells and springs in 16
western states– List of geothermal articles on state resources– GHC website: http://geoheat.oit.edu:
• 80 technical papers• 250 Quarterly Bulletin articles• Case studies with O & M data and lessons learned• Information on direct-use projects in the U.S.
$4 $5 $6 $7 $8 $9 $10 $11 $12
Closed Loop Installation Cost ($/ft of vertical bore)
4 5 6 7 8 9 10 11 12
Closed Loop Installation Cost ($/m of vertical bore)
$0.50
$0.75
$1.00
$1.25
$1.50
$1.75
$2.00
0.5
0.75
1
1.25
1.5
1.75
2
I N F E A S I B L E R E G I O N
Contours represent fraction of geothermal peak design load to total peak design load
Covered Aquaculture Tank
$15 $20 $25 $30 $35 $40
$0.20
$0.30
$0.40
$0.50
$0.60
$0.70
Quarterly Bulletin 26/1
Aquaculture covered tank closed loop design
$4 $5 $6 $7 $8 $9 $10 $11 $12
Closed Loop Installation Cost ($/ft of vertical bore)
4 5 6 7 8 9 10 11 12
Closed Loop Installation Cost ($/m of vertical bore)
$0.50
$0.75
$1.00
$1.25
$1.50
$1.75
$2.00
0.5
0.75
1
1.25
1.5
1.75
2
I N F E A S I B L E
R E G I O N
Contours represent fraction of geothermal peak design load to total peak design load
$15 $20 $25 $30 $35 $40
$0.20
$0.30
$0.40
$0.50
$0.60
$0.70
Quarterly Bulletin 26/1
Greenhouse closed loop design
WEBSITE ACTIVITIES
• Over 1900 files (320 MB of information)• For the year 2004
– Average hits/day 9,000– Average users/day 1,400– Average downloaded PDF files/day 2,000– Average user session time 10 min.
• 68% of users from the U.S.• 10% of users are international• 22% of users are from unknown locations
OR
CA
NMOKTX
AZ
ID
WA
CO
ND
SD
NE
KS
WY
NV
MT
UT
Space Heating
District Heating
Industrial
Resorts and Spas
Greenhouses
Aquaculture
Power Plant
Power Plant (planned)
LBLLLNL
LANL
SNL
INEL
NRELNational Laboratory
HIAK
Temperature above 100oC (212oF)
Temperature below 100oC (212oF)
State # of SitesAlaska 21Arizona 12
California 102Colorado 40
Idaho 74Montana 34Nebraska -Nevada 329
New Mexico
30
North Dakota
-
Oregon 633South
Dakota1007
Texas 3Utah 26
Washington 6Wyoming 21
SERVICES II
• Outreach activities– Training on direct-use applications– Training on geothermal heat pumps (GHP)– Display on various aspects of geothermal– Speakers on various technical subjects
• Balneology/pool design• Snow melting systems• Greenhouse design• Aquaculture pond design• Heating system design including GHP• Industrial applications
KLAMATH FALLS GEOTHERMAL DISTRICT HEATING SYSTEM
Location Map
Transmission Line
Supply Line
Return Line
Production Well
Injection Well
Heated Building
Heat Exchanger & Pumping Station
Snow Melt System
Stop 10Ross Ragland
Theater
Stop 11Snow Melt
System
Stop 9City DH
Central Plant
Stop 8City Production Well
EXAMPLES OF OUTREACH• Geothermal heat pump seminar, Boise, ID• Energy Conference, Pisa, Italy• Energy Conference, Beijing China• Geothermal Workshop, New Zealand• World Energy Conference, Bonn, Germany• Geothermal Resources Council Meetings and Workshops• International Summer School Workshops• World Geothermal Congress, Turkey• GeoPowering the West meetings• Power-Gen Renewable Energy Conference• Harvesting Clean Energy Workshop• Stanford Reservoir Engineering Workshop• Aquaculture America Conference• Tribal Geothermal Workshop, Nevada• ASHRAE – Geothermal Utilization Technical Committee
SERVICES III
• Technical Assistance: Direct-use, GHP, Small-scale/low-temperature power projects– Site visits– Feasibility studies– Preliminary economic analysis– Preliminary design of heating/cooling systems– Presentations to potential developers/users– Equipment recommendations– Referrals to engineer/geologist/reservoir
engineer/financial consultants
EXAMPLES OF ACTIVITIES I
• White Pine Charter School, Ammon, ID – feasibility assessment of using GHP
• Boise City Zoo – feasibility of using the Boise geothermal district heating system
• Milgro Greenhouses, Newcastle, UT – assistance with analyzing a pump failure
• Scuba Dive Pool, Wyoming - Heat loss analysis of a dive pool with pool cover recommended using low temp. water
EXAMPLES OF ACTIVITIES II
• Old Brooklyn Brewery, NY – assistance to a HVAC design firm using GHP
• Eastern Shoshone Tribe, Wyoming – recommendations for use of geothermal resource on the reservation
• Geothermal Rail Industrial Development, Nevada – recommendations on development of geothermal resources
• Geothermal Industrial Park, Elko, NV – recommendations for potential users
EXAMPLES OF ACTIVITIES III
• Homeowner, Klamath Falls, Oregon – new DHE design using PEX piping to solve corrosion problem – field installation trial
• Fish Ponds, Empire, Nevada – testing and design of diffuser tubes for heating ponds
• Oregon Institute of Technology – assistance with snow melt system design and with solving well pump problems
• INL – assistance with geothermal direct-uses for a template for the Farm Bill applicants
Klamath Falls downhole heat exchangers (DHE) using cross-linked polyethylene plastic pipe (PEX) – replacing black iron pipe to prevent corrosion.
STATIC WATER LEVEL
STAINLESS STEELCLAMP
1-IN. PEX DHE #1
1-IN. PEX DHE #2
1-1/2- IN. STEEL PIPE(from old DHE) ACTING ASAN ANCHOR ANDCONVECTION PROMOTER
STEEL PIPE CLAMP SUSPENDING DHE FROM CASING
GROUNDWATER CIRCULATINGINTO OPEN BOTTOM OFCONVECTION PROMOTER
GROUNDWATER CIRCULATINGFROM TEE-PIECE OFCONVECTION PROMOTER
WATER FLOW ARROW IN DHE
27
0 f
t
90
ft
8-IN. WELL BORE
GEOTHERMAL PROGRAM TECHNICAL ASSISTANCE AND
KNOWLEDGE TRANSFER
• Task Ordering Agreement – NREL– Technical support for developers, operators
and end-users– Collection and analysis of operation and
maintenance (O&M) data: 5 to 10– Direct use project case studies: approx. 10
WHAT WE CAN DO FOR YOU
• Task Ordering Agreement (TOA) through NREL – Technical Assistance– Request made by potential developer/users to GPW
State Working Groups or State Energy Office.– Request forwarded to NREL who then requests a
proposal from GHC– GHC responds with a cost/time proposal– Proposal reviewed by NREL, accepted – TOA negotiated and issued– Work started and completed– Report written at conclusion by GHC
THE GEO-HEAT CENTER TEAM
• John W. Lund, PE, Director/Civil Engineer• Andrew Chiasson, PE, Mechanical
Engineer/Geothermal Heat Pumps• Toni Boyd, Civil Engineer/Computers/ Data
Bases/Office Manager• Gene Culver, Mechanical Engineer• Gordon Bloomquist, Geologist,
Institutional/Regulatory Issues/HeatMap©• ** over 100 years of combined experience!
TO CONTACT THE GHC
Geo-Heat CenterOregon Institute of Technology
3201 Campus Dr.Klamath Falls, OR 97601
Fax: [email protected]; [email protected]; [email protected]; [email protected]
