Page 81 - North American Clean Energy March April 2016

GEOTHERMAL EQUIPMENT (suppliers/manufacturers): Large-scale projects
GEOTHERMAL EQUIPMENT (suppliers/manufacturers): Small-scale for home/business
Geothermal Development Associates
Geothermal Development Associates (GDA) is a privately held US company that specializes in geothermal power and direct-use applications worldwide. Their staff of engineers, geologists, and geoscientists have the capability to over- see projects at every stage—from initial resource exploration and well-testing to the design, supply, and commission- ing of a new power plant.
www.gdareno.com
Hyspan Precision Products
Hyspan Precision Products has been sup- porting geothermal applications world-wide for 50 years. Their offerings include: Well- head, BOP, Thermal, Seismic, Turbine and Pump Connection, Abrasion Service, Univer- sal, Pressure Balanced, Single Ply and Lami- nated, Heat Exchanger, Metal Bellows, Ball Joints, Slip Joints, Braided Hose, 7000 PSI, Corrosion Resistant Metals, Ball Joint Loops with 80% area reduction, Piping Stress Analysis, and Reverse Engineering. Their accreditations include: EJMA Registered, ASME B31.1-B31.3-Section VIII, CE/PED, NEMA, and they are an ORMAT supplier. www.hyspan.com
Sulfur Deposit Removal & Control in Cooling Towers
Geothermal energy systems experience a number of unique operational problems. Fluids produced from
geothermal reservoirs include steam, brine and a variety of non-condensable gasses (CO2, H2S, CH3, N2, etc.). In water-cooled systems with direct contact condensers, elemental sulfur fouling in the cooling system can be a significant problem.
H2S oxidation within the aerobic cooling water environment results in the formation of sulfur deposits in:
Condensers, Flow-lines, Tower fill and Spray nozzles above the fill.
Sulfur deposit accumulation in flow-lines.
The Solution
Sulfur fouling in the fill diverts water flow to less fouled zones.
Sulfur fouling on and in the spray nozzles results in uneven water distribution over the fill.
BCPTM 5000 products are well-known as organic deposit penetrants and dispersants. In rigorous testing in large geothermal plants in Mexico and the Philippines, BCPTM 5000 products have been shown to be the only chemistry effective in removing pre-existing hard elemental sulfur deposits, and in preventing the formation of new elemental sulfur deposits.
In a system in which elemental sulfur deposits have formed, BCPTM 5000 products* attack the deposits, causing disaggregation and release of the deposits from system surfaces. Shown below are:
Sulfur cylinder from
a flow-line, expelled through a nozzle orifice onto the upper surface of the tower fill.
Before/after BCPTM 5000 product treatment comparison of a nozzle orifice
A piece of sulfur deposit detached from the tower structure.
For a full case study or more information
contact us at 888-739-0377or www.amsainc.com
*Patent pending and patents issued
®
AMSA, Inc.TM
4714 S. Gar eld Rd. • Auburn, Michigan, USA • 48611 Tel: (989) 662-0377 Fax: (989) 662-6461 sales@amsainc.com
www.amsainc.com
~7 cm
End result:
Limited electricity generation by the facility and costly offline clean-up.
End result:
Improved cooling system efficiency.
Turboden Srl
Turboden, a Mitsubishi Heavy Industries company, designs, manufactures, and performs after-sales of Organic Rankine Cycle (ORC) turbogenerators. They are also a global supplier of geothermal solutions
to generate electric power ef ciently from medium-to-low enthalpy geothermal sourc- es. Turboden manufactures fully engineered power plants based on its proprietary ORC turbines ranging up to 40MW per single generator at low RPM speed, with a variety of eld proven different working uids. www.turboden.com
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