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Method to increase a range of helicopter
Author: David Judbarovski, principle inventor, systems engineering, pensioner, Israel
judbarovski@gmail.com , http://judbarovski.livejournal.com
[3692]-7.12.2016, [3693]-8.12.2016, {142}-p.133

The system carried by a mother ship consists of:
(1) some helicopters
(2) flexible walls balloons in blow off state;
(3) small tanks with ammonia being a liquid at 20 bars pressure;
(4) tiny heater for reforming the ammonia in hydrogen.
Just before a helicopter mission, the balloon is filled by the hydrogen reformed from the ammonia  by heating, and another small balloon is filled by fuel for the helicopter and for the balloon with hydrogen, and then the trio comprising the said balloons and helicopter moves with velocity ~ 250 km/h up to a point of the helicopter separate start for its mission, while the balloon filled by hydrogen can either wait the said helicopter after ending of its mission, or can be substituted by another hydrogen balloon carrying a fresh portion of fuel, or as the option, can carry a small boat with a fresh portion of fuel and ammunition or another cargo for helicopter, can repeat its mission for some times.
It is important to note, that the hydrogen balloon is carrying a fuel balloon only or the said boat, while the helicopter is jointed with fuel balloon by thin pipe. 
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Method to increase a specific impulse of rocket engine
Author: David Judbarovski, principle inventor, engineering systems, pensioner
judbarovski@gmail.com, http://judbarovski.livejournal.com
[3573], [3572], [3571] – 17.10.2016, gmail-ВИТ-28.10.2016, 18.10.2016, 20.10.2016

Abstract:
My invention serves to save a lot of money and time and fuels for space mission.
A specific impulse being increased, it allows fuel consume to be diminished for reaching a designed velocity of a rocket.
The fuel invented is a primary fuel (in my case it has a specific impulse of 2.3 km/s) creates high temperature if being burned, and such temperature is enough to split the water in hydrogen and oxygen. In its turn, the said water has been created from the said primary fuel, when it is burned. Such hydrogen and such oxygen are a secondary fuel with a specific impulse of about 4.5 km/s.

Here the nitromethane, CH3NO2, is a primary fuel. At normal conditions it is a liquid, has properties of its specific weights, safety of its application, storage conditions, and velocity of its laminar burning,  the all being similar to the ordinary gasoline.
Let consider and compare our primary fuel with a fuel being kerosene and cryogenic liquid oxygen, had been used in the first stage of the Saturn 5 rocket, was allowing USA missions with astronauts’ landing on the Moon. 
There was CH2(l) + 1.5 O2 (l) = CO2 (g) + H2O (steam) + 614 kJ/mol for 62 weight units of fuel
vs. my offer: 
CH3NO2 (l) + 0.25 O2 (l) = CO (g) + 1.5 (H2 + 0.5 O2) + 0.5 N2 – negligible 3 kJ/mol.
With a secondary burning, it creates 426 kJ for 69 units of fuels, used by the rocket to get the same designed velocity at designed altitude. For example, it allows to reach the start point of second stage of the rocket, is needed for output on low Earth orbit and uses a conventional fuel here being two cryogenic liquids of oxygen and hydrogen.
(Third stage of the rocket has a know-how disclosed in Appendix at the end of the article).
Real specific impulse of (H2 + 0.5 O2)(cryogenic liquids) was 4.13 km/s, while for kerosene with liquid oxygen it was 2.58 vs. our fuel with 3.0 km/s, and the last sufficiently lightens the rocket start mass, while liquid cryogenic oxygen would be needed in six-fold less quantity, than the start with kerosene and oxygen. 
Indeed,
Saturn 5 was a three stages’ rocket with a start mass of 2995 ton. 
The first stage was 2290 ton at the start.
The weight of the 2-nd and 3-rd stages + empty weight of the 1-st stage was G0 = 749 ton in sum, and the fuel for the 1-st stage was G1 = 2160 ton, and specific impulse was 2.58 km/s.
So
dV = ims * ln ( G1/GO + 1) – g * t,
here dV(km/s) is the velocity, can be reached, ims (km/s) is specific impulse, g = 9.81 (m/s), t = 165 second is a time of the fuel burning, so g * t = 1.6 km/s.
So   
dV = 2,58 * ln (2160/749 + 1) - 1,6 = 3,46 – 1,6 = 1,86 km/s.
To reach the said velocity of 1.86 km/s by our rocket, the total start weight must me 2357 ton, and 1608 ton is the 1-st stage’s start weight, and the liquid oxygen in it is less 630 ton vs. total weight of Saturn 5 being 2995 ton with liquid oxygen for its 1-st stage being 1672 ton, hence 2.65 times bigger, so the problems for the start were in 2.65 times bigger.
Really,
in our case, imp = 4.13 * 0,39 + 2,3 * 0,61 = 3,01 km/s. ln(G2/749 + 1) = 3.46/3 = 1.15, so G2 = 1608 ton is the weight of our fuel, so our rocket’s total start weight is 1608 +749 = 2357 ton.

A rocket can use the air as a oxidant for our primary fuel:
CH3NO2 + 0.75 O2 + 3.0 N2 = CO2 + 1.5 H2O + 3.5 N2 + 709 kJ/mol, at 4000 Centigrade.
Such heat is able to split 2.5 mol H2O in hydrogen and oxygen, so we can take additional 1.0 mol H2O and can split it into the jet fuel, but in comparison with a rocket fuel of kerosene with the air as the oxidant, our rocket has sufficiently more heavy weight, but it can reach sufficiently higher velocity.
Nevertheless, in comparison to rockets with a monopropellant, our rocket is better in all respects, because its specific impulse is sufficiently bigger.

Appendix
After output on the Earth orbit, for further getting the 3-rd escape velocity, the time can be arbitrarily long, so we can take the ordinary water on board and gradually split, by solar energy of relatively small power, the said water in hydrogen and oxygen the both simultaneously used as a jet fuel. It’s the record best chemical fuel in Universe.
For large space vehicle, i.e. for Mars long mission with human team on board, i.e. about 1000 ton of payload weight, it looks as insoluble problem, if trying to use the water electrolysis for the water splitting, because the said device’s weight calculated would be much heavier than total weight of the said space vehicle.
So we need to find non-ordinary decision.
The electricity can be produced with a help of photovoltaic panel, and its electricity is transformed by small & light & cheap & simple ordinary vacuum microwave pulse generator in electromagnetic beam, further concentrated by simple mirror on a high temperature small plate being sunk underwater and heated up to 2500 centigrade is enough to split the water. The said water is in a vessel being transparent for the said microwaves.  The photovoltaic panel is adjusted to be perpendicular to solar beams with a help of servomotors fed by a tiny part of power of the jet fuel. The said equipment can be multiplied for producing enough large power.
The photovoltaic panel is delivered in a form of a roll and unwrapped in the space.
I have estimated the weight of the water splitting including the weight of the power generation as about 15% of the total weight of the space vehicle for the said Mars mission.  
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Helicopters for record long missions and range
Author: David Judbarovski, engineering systems
judbarovski@gmail.com , http://judbarovski.livejournal.com
1. 12. 2016, idea goes back to 30 years ago and was for tactical land applications

I consider here two type of helicopters. 
The first type are fueled helicopters can’t be reformed for electric engine by reasonable way or occasion.
Such case had been considered by me in http://judbarovski.livejournal.com/131915.html (Method to provide a flying helicopter with a fuel, Aug 3, 2016). It can use cleaned natural gas at high pressure to feed continuously a flying helicopter through a thin pipe from a service transport means from the land or from sea surface. It can be quite small autonomous transport being enough for a long helicopters duty, especially relatively conventional dimensions of sea vessels.  The said service transport can deliver our helicopter to its patrol position for a big distance from a base, i.e. from is mother-ship can sufficiently widen its duty range and time.
Helicopters can be especially designed and serially manufactured to be with electric engine. It can be without problem and quickly made for small and tiny RC helicopters. At that case it can be fed by high-voltage cable, so the feeding cable is very thin and light and the duty time of such helicopter can be some month long with service boat of some cube meters deadweight and equipped by an electric generator.
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David Judbarovski, Isreal
judbarovski@gmail.com, http://judbarovski.livejournal.com, Linkedin

Short professional CV

I was born in former USSR in 1939.
1962 –I was graduated as Dipl.-Eng. in Mechanics and Technology with emphasis on control and automation in chemical industry and mathematic simulation.
1962 –I was starting my professional career in systems engineering, at first with emphasis on applied mathematics methods.
Through my life I had a duty experience in course in:
(1) air traffic control, (2) microbiological industry, (3) pulp and paper industry, (4) technology of microelectronics, (5) capital construction, (6) typical design, (7) concrete industry, and was working as a researcher, a developer, a designer, a technical supervisor, and as a worker too.
1961- 1973 - 5 years of post-graduate evening study on:
(1) applied mathematics, (2) electrical engineering: (a) radio engineering, (b) electronic and ionic technology (c) automated control systems. (ACS).
Besides, I have very rich 50-years off-duty professional experience in economics and inventions in very wide spectra of engineering and engineering systems. In the last 10 years they are:
(1) green & cheap & abundant & inexhaustible: (a) energy (b) production (c) systems, (2) military systems, (3) technologies, (4) consume electronics etc.       

For big regret I have a heavy experience being 17 years long prisoned in my past, and being immigrant in Israel since 1981
and being burden by dirty spot in my biography I have been officially licensed in Israel as an engineer in 2000 only.

In my small town, now I haven’t environment of spoken English, but English I intensively use in written form for professional contacts.
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Breakthrough concept of VAWT (vertical axis wind turbine)
Author: David Judbarovski, principle inventor, pensioner, Israel
judbarovski@gmail.com , http://judbarovski.livejournal.com
19.11.2016/As ideas it goes back to April 2015 (see http://judbarovski.livejournal.com/112909.html ), but here sufficiently upgraded, updated and corrected.

Abstract:
It is a chain of the VAWT-s lifted in the sky, and each the VAWT rotates in opposite direction to neighboring ones with a geared electric generator between them. It allows sufficiently to compensate torsion loads and to diminish a time of response to variable load on the total wind turbine. I firmly recommend not wide blades and not big power capacity to be used for one device.
The higher in the sky, the stronger wind and much more wind power can be harvested.
It is realistic possibility to eliminate fueled power generation by clean & cheap power doesn’t need in any energy storage and land area consume. It can work in any place of land area in the Earth or offshore. All those well contrast vs. solar thermal power in its turn having more attractive potential for cheapening and by its global power.

It is known that strings and foils have much bigger specific strength than a bulk materials of the same weight, and jointly with hollow parts we can save a lot of materials and extremely cheapen the VAWT without lose its strength and reliability.
By widely using flexible steel strings and thin plastic foils in its design and steel hollow frame, the said VAWT is very cheap, but effective and reliable device, especially because very original axle of VAWT being a flexible string too in a form of a polyamide rope, and the lowest rope is very long and fixed to the ground or to the sea bottom, while the upper end is pulled by a big buoyancy of a
balloon filled by hydrogen or cheap natural gas/methane.
It can be very reliable construction, because can automatically cease its operation with blow off the balloon and by automatic unfastening of the blades, in the case of extremely high wind load. The said balloon allows extreme quickly and simply to install such VAWT as on land as offshore. The last allows the VAWT-s to be installed without problems in big area of seas and oceans and to produce additional and huge amount of very cheap electricity.
A tower of conventional wind turbine can be considered as “a beam with one fixed end”, here being very long, so it is much more expensive and heavier than my design and very problematic in transportation and installation.
In a case of the said balloon filled by hydrogen, the said hydrogen can be delivered to places of the VAWT-s installation in breakthrough compact solid form of some hydride, and such chemical can release the said hydrogen by simple heating at low or moderate temperature and to fill even a large balloon in few days. For example it can be boron hydride (BH2), or magnesium hydride (MgH2) or so. After the hydrogen releasing, the said hydride remnant being in solid form can be fully reused for new portion of the hydride production at quite mild conditions of temperature and pressure.

Another possibility can be ideas to split the bonds N-H of ammonia or O-H of the water or hydrosine at very slight heating, if the said bonds being weakened in molybdenum complex (Science, 11 Nov 2016, vol 354, issue 6313, p.p. 730-733, Chirik Group at the Chemistry Department of Princeton University, pchirik@princeton.edu).
Water electrolysis for the hydrogen production can be considered as a big head-ache only, by its cost, problematic reliability and lifetime, exotic and expensive materials usage, high weight, very problematic delivery of the said hydrogen, especially if offshore wind turbines plant.

Nevertheless, we can use my original technology for the water splitting at high temperature created by concentrated RF-microwaves and cooled down to room temperatures by the same cold water environment. It promises extremely cheap hydrogen of about 10 USA cents per kilogram (see http://judbarovski.livejournal.com/133945.html  ).

The important notes can be:
(a) If the said VAWT system being lifted to 500 m high in the sky, there is much more strong and stable wind speed, and by that simple and quick trick the electricity production would be doubled and cheaper than USD 100/kW even if very weak wind near the ground, and it is following Hallman exponent law.

(b) Regarding that, the electricity would be free after a few months of payback period and for the next 5-10 years of the system lifetime.
(c) The world electricity production can be doubled-tripled in quantity without any investments in short-range future, but only by a profit from that business by exponential breadth financing.
(d) It can be so-called “distributed” power generation, in any local area, further can be widen along any big regions and countries to substitute fueled power generation with its harmful exhaust by clean energy.
(e) If being calm with zero wind, is common when cloudless sunny weather, in those cases our wind power generation can be supported by very cheap solar energy by very cheap solar device earlier invented by me, with electricity even cheaper than our wind electricity (see http://judbarovski.livejournal.com/133020.html ). In any case, you can use my cheap energy storage technology disclosed in http://judbarovski.livejournal.com/136391.html  
(f) So such system isn’t needed in very problematic, expensive and unreliable present systems of electricity storage by rechargeable batteries.
(g) The said cheapest & abundant & inexhaustible & uninterrupted surplus electricity production can be used for extracting the water from air humidity if arid lands and even world widely if clean water shortage. I earlier invented a series of suitable technologies for that purpose taking opportunities of such suitable and cheap energy
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Jalousie wind turbine vs. Shimizu classical vertical axis one for typhoon harvesting
Author: David Judbarovski, principle inventor, pensioner, Israel
judbarovski@gmail.com , http://judbarovski.livejournal.com
[3584]-13.11.2016, {142}-(10)

Atsushi Shimizu (2013), is founder of Callenergy ( http://challenergy.com in Japanese ) offers to use classical vertical axis wind turbine for typhoon power harvesting.
Being a first step to the right direction, I can note, that his idea can’t prevent his device to be broken by the typhoon, even if it would be much more reliable than European used thin blades wind turbine of horizontal axis, even if Magnus effect can compensate some loads, if following Mr. Atsushi Shimizu ideas.
Nevertheless, a mature typhoon produces a level of kinetic energy “equivalent to about half the world-wide electrical generating capacity”, according to the Atlantic Oceanographic & Meteorological Laboratory (www.aoml.noaa.gov/hrd/tcfaq/D7.html ).
So a core idea is interesting, and I can offer to use my lovely jalousie type wind turbine for the same purpose. Such turbine has been offered by me more than ten years ago and can be as vertical axis as horizontal one. Its blades have jalousie windows opened in uniform direction. While the wind closes the windows/jalousies at one of the blades and used to rotate electric generator, the other windows under the wind load would be opened and isn’t hindering the electric generator rotation. If resistance of working electric generator was made to be not big and limited losing some helpful energy, nevertheless it can harvest a lot of the power of the typhoon/hurricane without to be broken. It can be three blades wind turbine, and Magnus effect would act here too.
It is simple, but low materials & labor consuming, cheap and effective turbine.
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My scheme for storing of energy in big energetics vs. Siemens scheme
Author: David Judbarovski, principle inventor, pensioner, Israel
judbarovski@gmail.com , http://judbarovski.livejournal.com
It was disclosed for Ukraine by my e-mailing on 29.10.2016, 6:37 PM, to Tkachenko V. I. with the schemes attached (in Russian), and copied in English and stored in e-mail servers on 12.11.2016, 8:32 PM

The Siemens scheme is realized by rocks heating of 30 MWh in 2000 m3 of rocks. Their scheme disadvantage is a variability of the temperature after the storage, when input energy varying, so the work of the system and its output are unstable. So a block with turbine-generators works unstably, and it decreases their energy efficiency and reliability.  It is two blocks scheme and with underground counter-flow heat exchanger at the rocks being cheap and abundant natural stuffs. The first tank is charging circuit for transforming the wind farm electricity in the heat of high temperature, and the second block is steam circuit and its output electricity goes to grid.
In my turn I offer some more sophisticated scheme, but all elements of it operate in stable conditions not depended on variable input and output and potentially can store 100 kWh per a ton of rocks, is enough for 35 kWh output electricity.
The energy for storage serves to heat our storage stuff can varied its temperature, e.g. from 900 C down to 400 C of cheap and abundant stuff too, e.g. the rocks, soil, slags or any other natural stuffs (sands, clay or so) can work long at high temperature. The said heat by heat exchanger is heating a heat carrier up to about 400 C, then goes with velocity G1 m3/s to tank B and then G0 from it to steam circuit block with turbine-generators, while their exhaust at about 100 C goes to tank A together with G1-G0 from tank B, which level  stays constant, and G1 from tank A goes to the said block B, so the level inside tank B is constant too, when G1 is variable and controls output temperature after the said heat exchanger to be constant and equal 400 C, even if variable heat storage temperature.        
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Global Internet configuration breakthrough changing a game in internet service
Author: David Judbarovski, systems’ engineering, pensioner, Israel
judbarovski@gmail.com, http://judbarovski.livejournal.com
{142}-[3583]-31.10.2016, publications: (4)-01.11.2016

Global internet configuration offered here consists of several satellites analogously GPS, but  can be some bigger in quantity (about 150 satellites vs. 31) and at some lower orbit (about 300 km vs. 21,000) and serves only to assign a route (plurality of nodes) for pulses packet from its start terminal to end terminal/terminals.
The nearest satellite being  automatically informed by the said start’s, and end’s terminals names, then provides the said terminals and the said packet too by codes of all nodes at the  packet route assigned  by the said net of satellites.
After that the said packet is starting its way along the route with a small detentions on some nodes in a case if next link at its route being busy with another/other pulses packet/packets. In the last case, our packet is remembered by the node and then freed, when the link is freed for our packet.
Because a length of a packet is three or even much more bigger  by order of magnitude than a route code, the satellite traffic is much less than if satellite telephony, and internet traffic capacity can be grandiosely increased, while privacy of internet would be improved. 
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david judbarovski

<judbarovski@gmail.com>
Wed, Oct 19, 2016 at 4:16 PM
To: vtokarev <vtokarev@polynet.lviv.ua>, vtokarev <vtokarev@lp.edu.ua>
Виктор Сергеевич, возможен бизнес, с быстрой отдачей, и потенциально
гигантской прибыльности - малыми силами в начале и имеющимися в вашем
политехе.
У меня в нём особый личный интерес, из "благодарности" к зубным
врачам, чьими стараниями я потерял практически все зубы - а мог бы
этого избежать, и таких лохов миллиарды людей, живущих на Земле идущих
больше по обычаю к этих бандитам.
Понимаю, что у Вас с маленькой Вашей группой хватает проблем, но
предлагаю и эту новую, полагая что на принципиальное решение которой
вплоть до создания препарата уже коммерческого патентованного
качества, но очень дешёвого, доступного и простого, хватит порядка
месяца ( у меня звериная интуиция в таких делах, нюх как у
натренированной собаки).
Может потребоваться квалифицированный микробиолог, главным образом для
изучения литературы (помниться, у вас есть там, Шульга), сам препарат
- это типа полоскания или зубной пасты, и насколько я по быстрому смог
вникнуть в проблему - даже ежедневного употребления препарата может не
потребоваться, а типа раз в несколько дней. Есть конечно и иные
способы решения задачи, например ультрафиолетовый или/и инфракрасный
облучатель по форме и габаритам зубной щётки, но это уже не Вам
наверно, но тоже могли бы поучаствовать как химик-органик-пищевик и
даже просто как технолог с общеинженерной базой. Правда дело может
закончиться взяткой от цехового объединения зубных врачей, чтоб дальше
не возникали. Наверно так и было в нашем случае и не раз в истории, в
том числе перекупкой патентов и дорогими патентными судами.
Всё что мне ещё интересно - это узнать заинтересовала ли Вас или ваших
коллег и сотрудников эта тема.

P. S.


david judbarovski

<judbarovski@gmail.com>
Thu, Oct 20, 2016 at 8:15 AM
To: vtokarev <vtokarev@polynet.lviv.ua>, vtokarev <vtokarev@lp.edu.ua>
А что если это предложить студентам 4 курса в качестве интересной темы
для курсовой работы - конечно не навязывая, а в списке других тем - на
добровольный выбор. Если такой студент найдётся, да ещё решит
продолжить, то жизнь с приключениями ему обеспечена, но и возможность
состояться как личность и преуспеть и даже преуспеть во славу Украины.
Как у вас принято говорить - Слава Героям! Героям слава! 8-) и 8-(....


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Future potential of concentrated PV-power
Author: David Judbarovski, pensioner, Israel
judbarovski@gmail.com , http://judbarovski.livejournal.com
[3570]-15.10.2016

I will give here principle economical estimations only, because absolutely impossible to predict exact prices of materials and parts aren’t commercialized till now in the designed devices. 
I consider here a pair of small mirrors of 1 m2 solar flux. One of them is planar one and serves to redirect solar beams on the second mirror being a dish concentrator, so its focal spot is motionless with motionless multilayer PV-cell (MMPV). Earlier I had proved that such concentrating pair is about USD 10.0/m2 solar flux for up to 600 Centigrade in focal spot. In a case of concentration ratio 400:1, it would be not more than USD 25.0/m2 and additional USD 25.0 for the MMPV-cell, if supposing USD 10.0/Watt. Liquid butane at (-1.0 C) is stored in tanks and then can be distributed through a tubes by short pulses some times a day for cooling the MMPV by evaporation. The said vapor is return back to its liquefying facility through the same tubes.  Supposing the MMPV efficiency to be 50% and if Israel weather conditions, the MMPV can generate 1000 kWh electricity annually with power up to 500 Watt/m2, with heat loses 1000 kWh and 500 W too.
It consumes 21 kJ/mol butane, or 0.1 kWh/kg. so the MMPV needs 10 kg butane to be cooled daily. It is about 1.2 kWh electricity using a quite cheap device.
Cold loses would be negligible. Thermal insulation adds less than 1.0 USA dollars to cost of the MMPV.
Being summarized, the system’s energy efficiency would be (5 – 1.2)/10 kWh = 0.38 and can produce 0.38 * 2000 kWh * 5 years payback = 3800 kWh electricity by about USD 50.0 + 10%, so the system electricity would be about 1.5 USA cents/kWh. It well competes with present energy markets, but much worse than can give my earlier inventions
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