Renewables-2017

Method to save a lot of world forests from extermination Author: David Judbarovski, systems engineering, principle inventor, judbarovski@gmail.com Now the world markets consume annually about 600 million ton of papers and cellulose, but a half of it is recycled. For another 50% producing, it exterminates about 750 million ton of high quality trees and other plants on area ~ 3.0 million sq. km lands, because about 30 years needs for its restoring for such industry. Craft paper roll is ~ USD 200/ton, and cellulose is twice more expensive. Much more productive small aquatic plants and algae being reach of fibers, they are much more cheap and 100% alternative of present deforestation. A farming technology offered by me 9 years ago, it is a channel in a form of a double spiral for the water circulation. It can provide possibility to harvest triple more biomass of floating small aquatic plants or algae, reach by cellulose up to near 50% of dry biomass, on exponential par...

Chance for paradigm shift in global energetics Author: David Judbarovski, system engineering, principle inventor judbarovski@gmail.com   Fossil fuel dominance is a hell for human survivability. Moreover, it is heavy burden by short seeing private persons’ egoism, corrupting any counteractions against it. Any other alternatives are overloaded by geopolitics, geo-finance and geo-economics interests of West World against Third World, in favor to high-tech very expensive generators, and much less by basic engineering points of view, now allowing the global energy to be green & cheap & abundant & inexhaustible, while all materials and parts and tools for that purpose can be recyclable. Mr. Antonio Guterres, Secretary-General of the United Nations : “The technologies that are necessary to make this possible are already available. The key missing ingredient is a lack of political will he said: “Political will to stop subsidies on fossil fuels”, or to shift...

A real way to stop the global warming Author: David Judbarovski, systems engineering, principle inventor, judbarovski@gmail.com , Israel Abstract It is one of my other offers allowing the global warming to stop. Here it is special vertical wind turbines being very cheap and simple in manufacturing and installation, and their electricity being cheaper than one USA cent per kWh at sites with wind velocity equal or more than global average one being 3 28 m/s at land. For example, the present electricity consume of USA can be satisfied by 0.7 cent/kWh ($ 300.0/kW for all), distributed in total on 0.7% of its territory not excluded for other usage . Disclosure for experts Our vertical wind turbine is a vertical chain of special units. Each unit comprises three plane blades of identical window leaf of thin steel sheet. The wind flow rotates the said units by closing alternately the window leafs or opening them, and it rotates a low speed gearless permanent magnet ...

Energy strategy against the global warming Author: David Judbarovski, systems engineering, principle inventor judbarovski@gmail.com , Israel Introduction Mr. Antonio Guterres, Secretary-General of the United Nations : “The technologies that are necessary to make this possible are already available”, he added, “the signals of hope are multiplying. Public opinion is waking up everywhere. Young people are showing remarkable leadership and mobilization.”  The key missing ingredient is a lack of political will he said: “Political will to put a price on carbon. Political will to stop subsidies on fossil fuels”, or to shift taxation from income to carbon, “taxing pollution instead of people.” Here I intend to show a realistic engineering of the energy strategy as a compromise allowing to continue a fuels usage as energy source, but by ecologically save and cheap and sustainable way.  And it is well scalable!!!  Abstract (a) CO2 + H2O = CH2O (algae biom...

New look on power generation by oceans’ currents Author: David Judbarovski, system engineering, principle inventor judbarovski@gmail.com Abstract My hydraulic turbine is breakthrough simple and cheap and can save some milliard dollar for Japan annually by extracting 5% power potential of its nearby Kuroshio current. It cost (CAPEX) practically is a total cost of electric generators can be low speed gearless permanent magnet synchronous generator, because the others are relatively negligible. So it is about USD 200-400/kW. Supposing 5 years payback, the electricity cost would be less than one cent per kWh. Really, 8800 hrs. * 5 yrs. * 1.0 kW = 44,000 kWh by USD 200-400. So 0.45 -0.9 cent / kWh Disclosure for technical expert: It is a vertical chain of special units. Each unit is equipped by two electric generators each at its ends and by three vertical plane blades of identical window leaf of thin steel sheet. So the current’s flow rotates the said generators b...

Novel power system for Israel, got rich of natural gas David Judbarovski, systems engineering, principle inventor, Israel judbarovski@gmail.com Safe power system for Israel has to be distributed safe power generation as stationary as mobile one. Recently Israel got rich of off-shore natural gas being easily flammable and explosive, so very sensitive against terrorist attacks as domestic ones as by enemies from all sides abroad. Now Israel’s rules consider to export own natural gas and it is a quite wisdom idea to get rid of that fortune and simultaneously to make big money. Moreover, any fossil fuels, and natural gas is it, create harmful gases and dangerous climate change globally. The present trend in energetics is big penalty for them Nevertheless, in Israel, state and public decision makers mainly being laymen, lawyers and so on, they are pressed by businesses and patriotic populists to redirect a tube with cheap domestic natural gas inside Israel. Here I suppose...