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Renewable Energy Wave Pumps - WWP & WAP

 


 

BRIEF DESCRIPTION

WWP - Construction

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The WWP consists of a large Major Float floating at the sea surface, connected by flexible lines and a rod to a piston inside a submerged small   diameter reciprocating water pump. The WWP is anchored to the sea bed and kept vertical by a submerged Pump Float.

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Suction and Discharge Check Valves regulate the flow of water into and out of the pump.

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Pumped water is collected in a piping network run at the sea bed and discharging into hydro-turbo generator to provide power at required voltage and frequency.

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The WWP needs a minimum water depth of 14 meters.

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Installing sets of 10-Pumps would increase wave energy extraction.

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Discharge pipes and cross dummy piping are in integral part of the system mooring.

WWP – Operation

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The Major Float moves up and down with the incoming.  For a 4 meter high wave the large volume Major Float develops an uplift force up to 2,650 kilo-grams that acts on the piston of a small diameter piston pump to extract an average of 119 liters per cycle to 50 m head.  This is equivalent to extracting 58.14 KW from a 108 KW incoming wave at an extraction efficiency of 53.83 %.

WWP - System Construction

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A WWP field consists of multiples of 10-Pump sets to provide the required generator power output.

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Installing ten sets of 10-Pumps each (total 100 pumps) occupies 13.5 by 30 meters space.  Water pumped to 50 m and generator output are shown below.

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System costs depend upon location, power output and Client requirements.

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The system output in KW-Hours per year is the sum product of generator output in KW and the respective wave height durations in hours per year.  This information would provide system yearly gross income.

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The above data determines system viability and profitability.

WWP Output

Output WWP for 100 to 500 Pumps

               Wave Data              Water Pumped to 50 meters         Generator Output @ 82.5 Total Efficiency KW
Wave Height meters Wave Power    1 m Front KW Wave Power 1.5 m Front KW 10 Pumps 1.5x13.5m Liters 100 Pumps 13.5x13.5m Liters 200 Pumps 27x13.5m Liters 300 Pumps 40.5x13.5m Liters 500 Pumps 67.5x13.5m Liters 10 Pumps 1.5x13.5m KW 100 Pumps 13.5x13.5m KW 200 Pumps 27x13.5m KW 300 Pumps 40.5x13.5m KW 500 Pumps 67.5x13.5m KW
                         
0.5 1.13 1.69                    
1 4.50 6.75                    
1.5 10.13 15.19 1.80 18.01 36.02 54.03 90.06 0.88 8.81 17.62 26.44 44.06
2 18.00 27.00 11.73 117.34 234.69 352.03 586.72 5.74 57.41 114.82 172.23 287.05
2.5 28.13 42.19 27.18 271.76 543.51 815.27 1,358.78 13.30 132.95 265.91 398.86 664.76
3 40.50 60.75 42.62 426.17 852.33 1,278.50 2,130.84 20.85 208.50 416.99 625.49 1,042.48
3.5 55.13 82.69 80.73 807.28 1,614.56 2,421.84 4,036.40 39.50 394.95 789.90 1,184.85 1,974.75
4 72.00 108.00 118.84 1,188.39 2,376.78 3,565.17 5,941.95 58.14 581.40 1,162.81 1,744.21 2,907.02
4.5 91.13 136.69 142.59 1,425.93 2,851.86 4,277.80 7,129.66 69.76 697.62 1,395.24 2,092.86 3,488.09
5 112.50 168.75 166.35 1,663.47 3,326.95 4,990.42 8,317.37 81.38 813.83 1,627.67 2,441.50 4,069.16
5.5 136.13 204.19 195.31 1,953.06 3,906.11 5,859.17 9,765.29 90.06 900.56 1,801.12 2,701.68 4,502.80
6 162.00 243.00 224.26 2,242.64 4,485.28 6,727.92 11,213.21 109.72 1,097.18 2,194.37 3,291.55 5,485.91
6.5 190.13 285.19       Space Required LxW m 1.5 x 30 34 x 30 53 x 30 91 x 30
7 220.50 330.75     Recommended Generator Size Mega Watts 0.08 1.60 2.50 5.00
7.5 253.13 379.69                    
8 288.00 432.00     Generated energy in KW-Hours/Year is the sum product of    
8.5 325.13 487.69     generator Output in KW and respective wave height durations  
9 364.50 546.75                    

 

 

WWP – Calculation and Drawings  Available upon request

 

 

 

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Last modified: 02/27/10