Renewables-2017

I am David Judbarovski, ISRAEL, systems engineering, principle inventor, the both are very interdisciplinary, more than 60 years of productive experience. Synergy of two fundamental engineering principles would allow technology of practically free. and zero-carbon, and circular production, being well scalable H2, NH3, CH2, CH4, CO, CO2. See judbarovski.blogspot.com/2025/08, posted on August 27, 2025. It would be great at first to be developed and introduced in Israel and Ukraine in their mortal struggle for existence in war time. And I will be glad to help them at first 10,000 EURO and expearence, and a real way to energy independency from impudent exporters of oil and gas in really short time and to break their financing of the war and terror against Israel and Ukraine. Sincerely, David Judbarovski, judbarovski@gmail.com, 1939dmj@gmail.com

Dear professor Boris Rybtchinski. Date: 9/9/2025. Adoni professor ! Can I suppose, you can speak Russian quite influently and had studied Germanit in University. I am David Judbarovski, ISRAEL, systems engineering, principle inventor, the both are very interdisciplinary, more than 60 years of productive experience. Synergy of two fundamental engineering principles would allow technology of practically free and zero-carbon and circular production, being very scalable H2, NH3, CH2, CH4, CO, CO2. See judbarovski.blogspot.com/2025/08, posted on August 27, 2025. It would be great at first to be developed and introduced in Israel and Ukraine in their mortal struggle for existence in war time. And I will be glad to help them at first 10,000 EURO and expearence, and a real way to energy independency from impudent exporters of oil and gas in really short time and to break their financing of the war and terror against Israel and Ukraine.. Sincerely, David Judbarovski, jud...

Simplified H2/NH3/CH2/CH4/CO/CO2 production, is zero-carbon, circular and practically free. August 26, 2025 Abstract Simplified production of zero-carbon, circular and practicaly free H2, NH3, CH2, CH4, CO, and CO2. David Judbarovski, systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com. Background. Integratioon of huge share of Re energy directly in national grids was and is unsolvable. It needs intermediate artificial fuels, desirable to be green, cheap, and circular. It needs primary energy cheaper USD 0.01/kWh, cheap raw materials and tools to be competitive. The device was developed by Aircela Inc.is looked very promising, but uses expensive water electrolisis for H2 production, and problematic potassium hydroxide to extract CO2 from the air. Shortly their chemistry is (1) CO2 + 2 H2 = CH3OH + O.5 O2. (2) CH3OH = CH2 + H2O. Nevertheless, even if they apply our approach and our improvements forming Simplified production of H2/NH3/...

Simplified production of zero-carbon, circular, and practically free H2, NH3, CH4, CH2, CO, and CO2. David Judbarovski, systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com. Abstract. (1) CO2 + H2 = CO + H2O - 3 kJ. (2) CO + 1.5 H2O = CO2 + 1.5 H2 + 0.25 O2 + 143 kJ of such thermochemistry - 3 kJ = 140 = USD 154/Mmol. [1] and totally Q(H) = USD 154 / ton H2. (3) 0.5 N2 + 1.5 H2 = NH3 - 46 kJ = 46,000 * 0.3 (efficiency heat in electricity) * 0.03 (tariffs) / 3.6 = USD 115 / Mmol. Here N2 is practically free, if a share of the NH3 burns oxygen out of the air formed totally 7 mol N2 for 7 mol NH3 production. Such NH3 is USD 20 / ton NH3, OPEX, and totaly with Capex no more than about USD 50 or so. (4) CO2 + 3 H2 = CH2 + 2 H2O + 229 kJ = USD 573 /Mmol electricity as a by-product, and Q(CH2) = (5 * 44 + 6 * 154 - 573) / 14 = 570 / 14 = USD 40 / ton CH2 = USD 5.7 / bbl. (5) CO2 + 4 H2 = CH4 + 2 H2O. CH4 = USD 35 /1000 m3. Referenc...

Tremendously cheap and green ammonia can change a game - Upgraded. David Judbarovski, systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com. Abstract. Chain of improvements: (1) Re energy by UScents 0.4 /kWh, 5 years payback and breeding investments for acceleration. [1], [2].[3] (2) Reduction in size of the generators' units. Small size = "thin walls" drastically diminish ratio a cost of kWh. (3) N2 is practically free, "share of NH3 burns oxygen out of the air" vs. conventional cryogenic monster. [4]. (4) H2 can be down to USD 150 /ton. [1]. 0.5 N2 + 1.5 H2 = NH3 - 46 kJ, Haber-Bosch process. 46,000 * 0.3 (efficiency heat in electricity) * 0.03(tariffs) / 3.6 = USD 115/Mmol heat in electricity. Q(NH3) * 17 = Q(1.5 H2) = 3 * 150 - 115 = 335, so Q(NH3) = 335 / 17 = USD 20 /ton NH3 vs. now prices being USD 650 -850 /ton NH3. If + 250% for Capex, NH3 would be USD 50 / ton. Such cheap ammonia allows to synthetise...

Breakthrough cheap and green CH4 production and delivery, can be patented. You can join it. David Judbarovski, systems engineering, principle inventor, retired, judbarovski.blogspot.com, judbarovski@gmaii.com Abstract. CO2 + 4 H2 = CH4 + 2 H2O, Sabatier reaction. The reaction's heat can be transformed in electrsity can be sold and sufficiantly to cheapen the CH4. (a) CH4 = USD 34 / 1000 m3, at USD 150 /ton H2 See them in Breakthrough cheap and green hydrogen can change a game. judbarovski.blogspot.com/2025/08, posted on August 04, 2025; and CO2 mass production from the air very cheaply, judbarovski.blogspot.com/2025/01, posted on January 12, 2025; and CV-2023, davidjud.blogspot.com/2023/04, posted on April 27, 2023. I can recomMend big blimps (Airships with non-rigid walls) filled by CH4 being lighter than air simultaneously used as a propellant for the blimp to delive it closer to its consume.