Tidal Power Generation

 

TIDAL POWER GENERATION, AND THE RE-PLANTING OF TREES

Tidal Power Generation and Preventing Evaporation are two of my particular interests; the one being renewable energy of endless capacity, the other being to conserve our precious rain water.

My own research has proved to me that you don’t have to have a technical mind to appreciate what is going on in the world right now. All you need to do is look around and see what is happening everywhere. I can’t make a difference in the bigger scheme of things, but in a small way I do have a contribution to make to resolving the problems of Power Generation and Climate change.

  

TIDAL GENERATION

Research with Stainless Steel has proved that the non-conductive parts of the generator should be replaced with Carbon Fibre for under water power generation. A coating of Anti-foul would be suitable for the Carbon Fibre components installation.

The contributing factors to be considered:

1. Lift, powered by water/electricity, to raise and lower the generator from seabed for servicing, and to improve the location of the generator to the ideal level of the seabed to maximize the power generated.

2. Locate and obtain suitable sites for locating the generator, preferably between the islands and mainland with a suitable tide flow 8 Knot, and 40M down with suitable access to the shore.

The minimums criteria is: Minimum 40 Meter’s Deep, 8 Knot’s (mean) tidal force, Maximum 150 Knot’s Wind force, Maximum 7M. Tsunami waves, and close to islands or around headlands. They must be the subjects of the non-cyclonic conditions under normal circumstances.

3. The generation of tidal power would be sourced by turbines (see www.bluenergy), and waves action to control the levels of the piles, whether the generator has to be elevated or depressed to maximise its generating power . A sequence of non-return valves co-operated with piles, to locate the turbines, also to raise and lower them from the surface for regular servicing. The position of the piles makes it suitable for various types of terrain, and various levels of water. The tide is constant, whereas the wind and solar power is dependant on the climatic conditions.

It has become more and more obvious to me , that if ever you wanted to combat the Carbon Trading, that takes place when fossil fuels are burnt, you must plant trees, in ever- increasing numbers, to maintain the balance of nature. That would reimburse the “Carbon Trading” that must go on for such a while to replace the trees that have been negatively reduced in there natural habitat. Eventually we will get ahead of all the damage we have caused, through the lack respect of nature. That coupled, with responsible power generation such as from Tidal, Solar, Wind sources etc. should do a lot to reverse the devastating consequence we now face.. It has come to me personally, that Tidal Power has awful lot going for it, as opposed to Solar and Wind power. There will all ways be the tides, maybe to a lesser or greater degree, but never the less, with power generating potential

It has come to my notice, in ever increasing obviousness, that if ever you wanted to combat the Carbon Trading, that is used in which way that fossil are burnt. That you must plant trees, in ever- increasing numbers, to maintain the balance of nature. That would reimburse the “Carbon Trading” that must go on for such a while to replace the trees that have been negatively reduced in there natural habitat. Eventually you will get ahead of all the damage you have caused, through the lack respect of nature. That coupled, with replaceable power such as Tidal, Solar, Wind, etc. should do a lot. It has come to me personally, that Tidal Power had awful lot going for it, contrary to the Solar and Wind power, their will all ways be the Tidal Power. Maybe to a lesser or greater degree, but never the less, Power.    

 

 “ANTIVAP”

THE ANTI-VAP SOLUTION TO WATER EVAPORATION

Polyester or Polyurethane, Lightweight Concrete and Fibreglass or Polycarbonate Reinforced Concrete considered as materials for the production of “Antivap” solution.

 

Polyester and Polyurethane

Polyester and Polyurethane or equivalent materials, which float on oil or water, are UV protected and durable, and are the products used for Swimming Pools and Treatment Tanks.

However, the treatment of Dams requires a different angle of approach. Due to the “Wave” reaction and the problems in maintaining aquatic life in the dams, a much more stable material should be used. That is why I prefer “Lightweight Concrete” or “Fibreglass or Polycarbonate Reinforced Concrete”, to be the materials..

“Lightweight Concrete”

The product is self-explanatory, light enough to float on water; but does not have impact resistance to survive, on large bodies of water.

“Fibreglass or Polycarbonate Reinforced Concrete”

This material suits large bodies of water. It is impact resistant; if damage does occur; it is a simple matter of patching it with a bit sand and cement. It can be made up to any size desired, handling it being the only consideration. The centre void would be filled with waste material, Polyester, or Polyurethane or equivalent, floatable on oil or water, UV protected, and durable, of which there are considerable quantities available.

The major advantages for all the three variances of the “Antivap” are:

  • The “Antivap” is re-useable and stackable.
  • They are resistant to UV attack. The “Antivap” would be manufactures from purely inert materials.
  • Once set in their location, the “Antivap” would as permanent as you would want them to be.
  • There would relatively little maintenance to upkeep them.
  • You need to cover only the areas that you need to.
  • On the Dams you need only to cover bays and inlets. The recreational pursuits in all areas could carry on, unimpeded.
  • Aquatic life in the areas protected by “Antivap”, would to be conserved when using the “Antivap”. If there is a need to get more surface exposed, it is only a matter leaving one module, or several out, to reach the desired effect. In addition the gap left between the interlocking pieces, provides for continued gaseous exchange to ensure that fish and plants survive.

People have drawn my attention to several factors that are seen as shortcomings with the “Antivap”. Although the Antivap outweighs some of the shortcomings as mentioned.

    • Swimming Pools: “Antivap” modules should be the recoverable with the Pool Brush. They are stackable within a ½ sq meter portion of the pool surround area.
    • Treatment Tanks: should the “Antivap” be a permanent feature, it is only when something goes wrong, or at service time, that you need to recover the pieces. As they are oil resistant and UV proof, they can be handled and stacked as for swimming pools.
    • Dams would create another problem. A floating Punt with Catamaran configuration would be employed. It would have a lifting system on it, a tripod with a spreader mounted on the bow. One should only need a very basic, setup a hand winch, with a towing hitch behind it, and 4.5 Kw outboard motor, to place the in the “Antivap” pieces in position. This would be a simple craft to tow and position the Antivap modules. It would be towed and moved by a small 4WD or the “Antivap” distribution vehicle, to its point of use.

One has to look at the “Antivap” as being a permanent or semi-permanent solution to these problems. The problems are such, that the “Antivap” should be introduced to ease our shortage of water.

Consider the DOLOSSE  (A engineering solution which dispersed the wave reaction on groins and breakwater through out the world.) It has been is use for 50 + years.

A permanent solution is what is needed right now. Too long have the Governments and the Local Authorities been subscribing to solution “SHe'LL BE RIGHT, SOMETHING WILL COME UP, WE’VE GOT PLENTY OF TIME, LET THOSE WHO FOLLOW US DO IT”.

The time is right now   

The theory behind this is that it is much better to have a permanent solution than one, which is renewable; the latter having various drawbacks, among them is costs. While, admittedly the cost is higher than a  permanent solution once it has been employed two or three times it amortizes itself by being used on a permanent basis. The “Wave reaction” is enough to render the chemical solution ineffective. See under “Alternatives to Antivap” (Alt. 1.)

None of the alternatives have considered life below the surface. They all consider an impervious layer of polyethylene or a chemical compound.

Alternatives to “Antivap”
Alternative 1
.


http://www.abc.net.au/landline/stories/s794323.htm

http://www.nalco.com/ASP/industries_served/municipal/municipal_key tec.asp#watr

http://www.greenmountpress.com.au/cottongrower/issues/247djcot04/247damevap.htm

 

Water is becoming an increasingly valuable commodity and the source of much debate. With losses due to evaporation accounting for one third to a half of the water lost on Queensland farms, Queensland Department of Natural Resources and Mines has funded a project to evaluate the effectiveness and viability of commercially available products for reducing evaporation from rural water storages.

The Rural Water Use Efficiency Initiative — Evaporation Control Project aims to evaluate various products which claim to reduce water losses due to evaporation as well as assess the effect on water quality, the economic benefits and mechanical integrity of the products.

The National Centre for Engineering in Agriculture was awarded the contract to conduct the trials and expressions of interest were sought earlier this year from individuals or businesses with products and ideas for controlling evaporation. A technical panel selected products from five companies for evaluation. The products selected were:
EvapCaps/Darling Down Tarpaulins

A lightweight, impervious, black and white, polyeythylene ‘bubble wrap’ style of floating plastic cover.

Netpro

A 300 gram per square metre, black, monofilament shade cloth that is suspended from a high tensile, webbed cable structure secured with screw anchors around the perimeter of the storage.

Fabtech SA

A lightweight, floating plastic cover that forms a complete seal over the surface of the storage and is ballasted to keep the cover taught and aid in the collection of rainwater.

Ondeo Nalco (Water$aver)

A chemical solution that is self spreading and forms a thin mono-layer of a fatty alcohol across the water surface. The product has been designated as environmentally sound technology by the United Nations international environment program.

Ciba Specialty Chemicals>

A smaller scale trial will be undertaken to evaluate the effectiveness of polyacrylamide (PAM) in reducing evaporation

The project has trials at a range of sites situated in various climatic areas on storages varying from 10 metre diameter ring tanks to storages of well over 100 hectares. The opportunity to test these products on such a large scale is a direct result of Queensland Department of Natural Resources funding and significant contributions from product suppliers and landholders.

One of the difficulties in evaluating the various evaporation control techniques is obtaining an accurate figure on evaporation losses with and without the products installed. As part of the project, a method for measuring evaporation and seepage losses from water storages is being developed.

This tecnique involves the accurate measurement of water height in the storage and allows the user to delineate between evaporation and seepage (Figure 1). This allows daily calculations of seepage and evaporation losses and, when coupled with a detailed land or hydrographic survey, enables the landholder to determine the actual volume of water ‘lost’ through evaporation and seepage.

Testing and evaluation of the evaporation control products will occur over the next 12 months and will allow for analysis under a variety of weather conditions and evaporation rates. It is anticipated that the final report (due in December 2004) will provide guidance on the viability of evaporation control technologies.

Suppliers of evaporation control products will also receive constructive feedback to improve and develop their products to suit varying situations and raise the awareness of evaporation losses and the economic benefits of evaporation control.

Landholders and interested parties should also gain a useful aid in assessing the benefits of installing various evaporation control products and their applicability and suitability to a variety of farming and municipal enterprises.

For more information, please contact the National Centre for Engineering in Agriculture
ph: 07 4631 1871

 

 

Methods are being developed to measure evaporation and seepage losses.

 

 

 

Vol 24, No 7, page 22

December 2003–January, 2004

Reducing dam evaporation: Grasping the Holy Grail

By Andrew Brier, National Centre for Engineering in Agriculture

 

 

Ref.A. Source: Coega Development Corporation

http://www.npa.co.za/PDF%20Documents/EIR%20Docs/Studies/Shoreline%20Stability%20Assessment.pdf

http://www.entech.co.za/

http://www.entech.co.za/Projects/Coast/P_PelicanIsland.html

http://www.entech.co.za/DetailCV/VanTonderlong.html

http://www.nu.ac.za/department/data/Mardon_MScThesis_2003.pdf

 

 

 

Arthur Thompson

Trustee for the World Reforestation Foundation    

 

PS I speak through a voice synthesizer, as my stroke has caused speech disabilities, precluding me doing otherwise!

 

  Ref.A. Source: Coega Development Corporation

http://www.npa.co.za/PDF%20Documents/EIR%20Docs/Studies/Shoreline%20Stability%20Assessment.pdf

http://www.entech.co.za/

http://www.entech.co.za/Projects/Coast/P_PelicanIsland.html

http://www.entech.co.za/DetailCV/VanTonderlong.html

http://www.nu.ac.za/department/data/Mardon_MScThesis_2003.pdf

   

 

I am passionate about helping to solve both the global and local problems concerning the environment which we have bought upon ourselves. I have an engineering background and have worked on many world-wide projects – see my website. Unfortunately I suffered a massive stroke 10 years ago and it has left me speech disabled. I am now reliant on communicating through my computer and my written words are able to be “spoken” though a voice synthesiser, which is how I am still willing and able to address meetings.

 

Arthur Thompson

If you are able to assist please contact me.

 

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