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GREEN ![]() AND CLEAN POWER French River Land Company's Website!
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French
River Land Company's Home Page!
HYDROELECTRIC SITES: Anasagunticook Lake Dam Replacement- C.Fay & W.Fay Senor Bonifettis' sites in Chile Turners Falls Generator Rewind USEFUL ENGINEERING: Air Admission to Hydro Runners The Banki Water Turbine Mockmoore and Merryfield Bishops Method- STABGM Program Blade Pitting- Boving LTD 1930 Cavitation- Accelerated Research, Allis Chalmers Research Cavitation & Vibration of a Draft Tube Cavitation- Prevention & Reduction, Allis Chalmers Research Causes & Effects of Cavitation in Hydraulic Turbines Chain Turbine by: Nguyen Minh Duy Chain Turbine Mechanics- Discussions with Duy Characteristics of Modern Hydraulic Turbines-Chester Larner Comparative Tests On Experimental Draft Tubes- C M Allen & I A Winter 1923 Design of an Overshot Waterwheel (by Carl Weidner) Design of Small Water Turbines for Farm and Small Communities Design of the runner of a Kaplan turbine for small hydroelectric power plants: Timo Flaspöhler Draft Tubes of Hydro-Electric Stations by M. F. Gubin Ejection into Tailraces of Hydropower Plants: S. M. Slisskii Fall Increaser Herschel Venturi Tube Fall Increaser Moody Ejector Turbine Fall Increaser Hydraulic Jump Apron Feasibility Studies for Small Scale Hydropower Additions, A Guide Manual, US Army CORPS of Engineers Governor Theory for the Plant Operator Graphics of Water Wheels- William Fox Hydraulic Motors- M. Bresse & F. A. Mahan 1869 Hydraulic Turbines- Robert Long Daugherty Hydraulic Turbines by Arnold Pfau Hydraulic Turbines Gelpke & Van Cleve Hydrokinetic Energy in Massachusetts- William D. B. Fay Impulse Turbines by Ely Hutchinson Kaplan Blade Design NACA Air Foil- Report No. 460 Kaplan Blade Design NACA Air Foil- Report No. 628 Kaplan Design Marko Kogovsek.xls A Laboratory Study to Improve the Efficiency of Crossflow Turbines- N. Aziz & V. Desai Meggering Earth Resistance Motors as Generators for Microhydro, Nigel Smith Operation & Maintenance of Hydro-Generators Out Gassing of Cross Flow Turbines Parallel Operation of Turbines Analysis Powerhouse Design- Miniwatt Hydro Rack Design-Chicopee-Olav Hotvedt Rack Design- Hydraulic Institue of Munich Rack Design-Flow Induced Vibrations Selecting Hydraulic Reaction Turbines BUREC Snows Improved Water Wheel Governor Standard for Hydraulic Turbine and Generator Shaft Couplings and Shaft Runout Tolerances Stoplog Structure Design Calculation Stress Analysis of Hydraulic Turbine Parts, BUREC- F.O. Ruud Some Fluid Flow Characteristics of a Cross Flow Type Hydraulic Turbine- Durgin & Fay Tenth Census of the US, 1880, Water Power of the US, Part I- Professor Trowbridge Tenth Census of the US, 1880, Water Power of the US, Part II- Professor Trowbridge Tests on a Kaplan Hydraulic Turbine Theoretical Conditions Related to an Open Channel Flow Linear Turbine- Ishida & Service Theory of Turbines- De Volson Wood Treatise relative to the Testing of Water-Wheels and Machinery, James Emerson 1879 Turbine Water-Wheel Tests- Robert Horton Turgo, A High Speed Impulse Turbine- Paul Wilson Water Hammer-Lorenzo Allievi-Text Water Hammer-Lorenzo Allievi-Figures Water Hammer-ASME Symposium 1933 Waterpower Engineering-Daniel Webster Mead TRADE CATALOUGES: Bradway Turbine (progressive gate) Christiana Machine (register gate) Electric Machinery Company (EM) Head Gate Hoists- S. Morgan Smith J & W Jolly (cylinder gate) Lombard Direct-Connected Oil Pressure Governors Bulletin N0. 113 October 1st, 1912 Lombard Governor Company Type T Instruction Book Lombard Governors for Waterwheels and Steam Engines-1902 Lombard Water Wheel Governors Catalouge 26 Ridgway Perfection Water-Wheel Vertical Shaft Water Wheel Driven Generators- General Electric Westinghouse Small Vertical Waterwheel-Driven A-C Generators, July 1944
Links: Smith Alternative Energy (www.smithtest.com)
| D. Hobbs Contracting Inc.
Balancing New Blades Built by D. Hobbs Contracting for Kaplan Turbine History D. Hobbs Contracting Inc. (DHC) was incorporated in 1993 in order to provide professional design and construction services to the hydroelectric community. It is a closely held company which allows personal participation and supervision by its principals. DHC has been involved in all phases and aspects of the hydroelectric power business. DHC has seasoned, professional personnel and a registered professional engineer on its staff. In September 2001,`DHC merged with SRHOCO in 2001 to expand its capabilities. DHC has its main occupation in the operation and repair of new and existing hydroelectric equipment, dams, canals, head gates, waste gates and associated equipment. DHC presently owns and /or operates nine small hydro units. DHC is negotiating for nine more units which will have an aggregate capacity of 7.0 MW. DHC has just completed the inspection of 60 dams for the Dam Safety Division of the Commonwealth of Massachusetts. Bill Fay is authorized to perform Part 12 inspections for the Federal Energy Regulatory Commission (FERC). DHC has rebuilt many turbines and generators. It has become specialized in rehabilitation of S. Morgan Smith Kaplan turbines. DHC has the ability to react quickly and to bring extensive knowledge and manpower to emergency situations.
D. Hobbs Contracting drops rebuilt Kaplan nose cone through cafeteria to powerhouse at Valley Paper Company, Lowell, Massachusetts Sites Managed by D. Hobbs Contracting
Hydro Rehab Projects 1. Pioneer Hydro, Ware, MA - Reconditioned and installed a 38" Rodney Hunt gate case, runner, intermediate shaft and governor shaft. 2. Valley Paper Hydro, Holyoke, MA - Rehabilitation of 60" S. Morgan Smith Kaplan and 800 KW GE generator. 3. Livermore Falls, Plymouth, NH - Purchase and removal of two 38" Rodney Hunt Camelback turbines. 4. Cascade Energy Thorndike, Palmer, MA - Reconstructed powerplant and installation of 500 kW GE generator, 51" Morgan Smith Kaplan turbine, switchgear, stub-station and 3/4 mile of new transmission lines. 5. Ruger Arms, Newport, NH - Removal and rigged out a large synchronous generator from a sub-basement of the Jaffrey Fire Protection Company. 6. Shenandoah Hydro Electric, Woodstock, VA - Dismantled, inspected and rebuilt a fire damaged 300 KW hydro generator. 7. Mini-watt Hydro, Orange, MA - Installation of a 36" Leffel "A" turbine in the new eastside powerhouse. 8. Tannery Pond Hydro, Winchendon, MA - Complete installation of 2 turbine-generator sets, switchgear, hydraulic power packs, head gates, substation and transmission lines. 9. Centennial Island Hydro, Lowell, MA - Complete removal, inspection, repair and installation of a 60" Morgan Smith Kaplan unit which had self-destructed due to a catastrophic failure of the generator spyder foundation bolts. 10. Cascade Energy Thorndike, Palmer, MA - Reconstructed flood gates, penstock, intake gates and trash rack support structures. Fabricated and installed new trash racks. 11. Division of Dam Safety, Commonwealth of Massachusetts - Inspected and published reports on 60 dam for the dam safety inspection program. Reports include: physical inspection, hydrology study, hydraulic study, BOSS dam break analysis, emergency action plan, power production studies, cost estimates, professional designs and overall analysis of safety. 12. Federal Energy Regulatory Commission, Code of Federal Regulations 18: Part 12 Inspection of Wappinger Falls, NY and Gaynor Dam, RI. 13. Consolidated Edison, Red Bridge Hydro Station - Repair of generator braking system and re-alignment of runners. 14. Consolidated Edison, Indian Orchard Hydro Station - Replacement of penstock gates and installation of new dynamic brakes for generator. 15. Open Square Hydro, Holyoke, MA - Rehab and tuning of Francis turbine, gate case, repair of dynamic brakes, new stuffing box and check out of switchgear. 16. Slater Mill Hydro, Slater, R.I. - Rehab and installation of rehabbed overshot wheel.
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