Renewables-2017

Method to prolong the OSC lifetime and its economics 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   It is known, that the OSC-s (organic solar cells, polymer solar cells) degrades quite quickly (up to 2-3 years) at natural bright insolation and have quite low energy efficiency (up to 7-10%). It is known too, that the smaller OSC – panel, the thinner and cheaper in cube its cost, while the OSC made by roll-to-roll technologies can be 100-1000 cheaper than Si-PV, being now about USD 0.5 per watt, or USD 500.0/kW. I can offer to shield the OSC by a thin cover to diminish twice the insolation and can suppose it can triply increase the OSC life time up to 7 years and increase its energy efficiency up to 10%, while 0.33 mm steel support wou...

Method to prolong the OSC lifetime and its economics 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  It is known, that the OSC-s (organic solar cells, polymer solar cells) degrades quite quickly (up to 2-3 years) at natural bright insolation and have quite low energy efficiency (up to 7-10%). It is known too, that the smaller OSC – panel, the thinner and cheaper in cube its cost, while the OSC made by roll-on-roll technologies can be 100-1000 cheaper than Si-PV, being now about USD 0.5 per watt, or USD 500.0/kW. I can offer to shield the OSC by a thin cover to diminish twice the insolation and can suppose it can triply increase the OSC life time up to 7 years and increase its energy efficiency up to 10%, while 0.25 mm steel support woul...

Simple control device for safety of hydrogen vehicles   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   A very simple device can identify reliably even a very small leakage of hydrogen from a hydrogen balloon and prevent the formation of explosive mix with the air. It is a vessel is slightly bigger than the hydrogen balloon together with fuel cell, and the both sank inside the vessel. The said vessel is filled by the water and a closed thin tube with the air is on the top of the vessel. In a case of the hydrogen leakage the air pressure would grow inside the said thin tube, and it can serve as a control device of the hydrogen leakage.

Breakthrough high-speed HPV (ski treadmill with storage) [3818]- 12.01.2018 Author: David Judbarovski, principle inventor, retired engineer, Israel judbarovski@gmail.com   Short CV: https://www.linkedin.com/in/david-judbarovski-1390944a/ Most fresh archive: http://judbarovski.blogspot.be Archive since 2006 yr.: http://judbarovski.livejournal.com It is a new kind of HPV (human powered vehicle) with transition of ski treadmill to power a generator and bike-type wheels. An excellent aerodynamic shield can be used without designing problem. A pilot power is about 430 kcal-h ordinary in that case for a long time. If 50% of its energy being stored by a small battery and periodically used for travelling, and a pilot can relax of 50% of the route time, the average speed is about 45 km/h, even if a rugged terrain and 25 kg cargo.   Because a human daily energy for a long work being about 3500 kcal ordinary, it is enough for about 14 hours of the route of 630 km long...

Additional operations with files on touch-screen Judbarovski David, judbarovski@gmail.com 15.12.2017 Two short quick clicks by a finger are opening a table of options for operations with a file (e.g. copy, paste and so on). Moreover, an additional click on the chosen option can allow the work with the option recurrently.    

Fishing net with radio-controlled placing delivery Author: David Judbarovski, Israel, judbarovski@gmail.com   [3804]-26.11.2017   The fishing net can be dragged for small fishing by a tiny & cheap radio-controlled float, while the fish catch can be dragged manually from the shore.

Automatic contact of city-car with powering block {103}-[3802]-18.11.2017   City-car (see disclosure in http://www.judbarovski.blogspot.co.il/2017/11/city-car-for-alliance-of-renault-nissan.html ) uses a foldable wing with either comb- or brush contact being inserted through a slot of a powering block for powering, while the city-car traveling. Two thin strips (e.g. magnetic or luminescent paint) are marked along of the said slot. One strip is slightly above the slot and the second is below the slot. The said wing is equipped by an automatic tracking system reacting to the said strips and allows the end the wing to be inserted automatically between the said strips directly through the slot. The wing has two sorts of sensors. One of them is a safety sensor and prevents injuries of somebody or something, if being in front of the wing, which is quickly folded in that case. The second of them is positioning group of sensors for connecting of the wing contact for powe...