Renewables-2017

Fishes farming for commercial wild fishery   Author: David Judbarovski, principle inventor, retired engineer, Israel judbarovski@gmail.com   Short CV: https://www.linkedin.com/in/david-judbarovski-1390944a/ Last articles: http://judbarovski.blogspot.be Archive since 2006 yr.: http://judbarovski.livejournal.com [3759], [3760] – 16.08.2017  It is clear that fish farming from the fish caviar, and additional farming up to the fish young age, can save a lot of CAPEX and OPEX vs. the farming up to a commercial size of the fish. If the said young fishes being thrown up for their wild live, and if the said fishes are flock fishes, can be stood each by others to live and survive in the wild environment, such technology will increases a wild fishes population, and it can be cheaper and much more healthy than conventional fish farming.Fishes   

Progressive city-car and its connection to city-grid Author: David Judbarovski, principle inventor, retired engineer, Israel judbarovski@gmail.com   Short CV: https://www.linkedin.com/in/david-judbarovski-1390944a/ Last articles: http://judbarovski.blogspot.be Archive since 2006 yr.: http://judbarovski.livejournal.com [ 3786] -24.10.2017 Special designed city-car as a grid element isn’t a big news now. Such cars are to be much cheaper and simpler than conventional cars. But I can suppose strictly to reject all sorts of powering from underground, because it creates additional and not simple and cheap road works for city road services. Powering from air (from wires) or by trolley connections looks as quite problematic too. I can offer the following high-tech, but very cheap innovation for it. It is a piece of a wire with a tiny helicopter or two ones looking as a child toy/s at one or two ends of the wire. The helicopters are flying over a corresponding...

Tiny chip can save any electronics against EMP weapon Author: David Judbarovski, principle inventor, retired engineer, Israel judbarovski@gmail.com   Short CV: https://www.linkedin.com/in/david-judbarovski-1390944a/ Last articles: http://judbarovski.blogspot.be Archive since 2006 yr.: http://judbarovski.livejournal.com My idea is based on well understanding of weak sides of EMP weapon (electromagnetic pulse as a means to destroy electronic devices). The weak sides are following: (1) It is a pulse or several pulses, hence after a pulse will be a pause (2) Mainly, having a big power it has relatively small energy in average (3) It is well known, that the iron shield can protect any active electronics (e.g. any transmitters) (4) Any receivers can be sufficiently protected by iron shield too, if they don’t amplifying sufficiently input signals (4a) Being with amplifiers, but not amplifying of input signals, it is sufficiently protected too by iron shield ...

New kind of VTOL aircraft of breakthrough advantages Author: David Judbarovski, Israel short CV in https://www.linkedin.com/in/david-judbarovski-1390944a/ , my last papers: http://judbarovski.blogspot.be , archive: http://judbarovski.livejournal.com [3777]-05.10.2017 VTOL is provided by a service device comprises two cylinders of Kevlar flexible thin walls, one inside another, filled by the air of controlled pressure, while its internal pressure is vacuum and the said device external pressure is slightly higher than at ambient air. The said VTOL device is lifting an aircraft till a possibility of its flight by itself with service device can be folded, when cruise. The service devise is 20 times lighter than a payload vs. helicopter empty weight being equal to its payload. The internal vacuum serves to lift the aircraft, while the external pressure with a help of thin ropes inside the external cylinder serves to keep coaxial position of the said cylinders.  ...

The way to energy             independence.     Name (*) David Judbarovski    Country (*) Israel    Company/association/institution (*) retires engineer    E-mail address (*) judbarovski@gmail.com    Contents (*) Fresh look on wind power generation Abstract It is a new kind of a wind power generator. Its energy effectiveness can be close to 100%, while it has very simple design, and its electricity is about 0.2 USA cents per kWh, because a lion share of the said cost is a share of a geared electric generator. It works in open sea in principle, while global wind kinetic power is about 20.0 milliard kW. The power generation unit is a small pilotless boat with a flat sail. Four small floats placed symmetrically at a distance from the boat, are serving to compensate a torque force of the wind on the sail. A relatively small water wheel with three blades in a...