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HCCI-VCR Rotary Engine Technology Breakthrough

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Major breakthrough in the HCCI-VCR Rotary Engine Technology being developed by Customachinery Inc. and Queen's University. The optimization of location and spray angle of the fuel injector leads to very high turbulence and temperature stratification in the combustion chamber, therefore creating the best conditions for an extremely efficient combustion...

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HCCI-VCR Rotary Engine Technology Breakthrough

  1. 1. HCCI Variable Compression Ratio Rotary Engine Technology Breakthrough – A High Turbulence Temperature Stratified Combustion Chamber ROTARY POWER CLEAN
  2. 2. Roberto Fanara Customachinery Inc. President & Founder THE TEAM Dr. Gabriel Ciccarelli Queen’s University Professor & Researcher Pouya Mottaghian Customachinery Inc. CFD Specialist Parth Panchal Queen’s University Masters candidate
  3. 3. CFD ANALYSIS FUEL INJECTION SPRAY ANGLE OPTIMIZED TO ENHANCE VAPORIZATION AND TO MINIMIZE WALL WETTING
  4. 4. THE FUEL INJECTION PRODUCES A VORTEX FLOW THAT, COUPLED TO THE THUMBLE GENERATED BY THE PLOWING ACTION OF THE ROTOR, CREATES THE IDEAL CONDITIONS FOR FUEL MIXING. THE FINAL “SQUISHED” THUMBLE AND THE HIGH TURBULENCE INDUCED IN THE COMBUSTION CHAMBER ENSURE OPTIMUM FUEL COMBUSTION CONDITIONS. EARLY COMPRESSION LATE COMPRESSION AUTO IGNITION
  5. 5. THE FUEL INJECTION IS ALSO RESPONSIBLE FOR COOLING THE ZONE CLOSER TO THE INJECTOR, WHEREAS THE AREAS FURTHER AWAY REMAIN HOTTER. SUCH TEMPERATURE DIFFERENTIAL IS MAINTAINED THROUGHOUT THE COMPRESSION STROKE, CREATING A DESIRABLE TEMPERATURE STRATIFICATION TO BETTER CONTROL HCCI COMBUSTION. COOLER ZONE COOLER ZONE TEMPERATURE STRATIFICATION
  6. 6. COLD AIR STANDARD ANALYSIS • Compression ratio (Cr), Expansion ratio (Er), and load assumptions: • 𝐶𝑟1 = 10.0, 𝐶𝑟2 = 15.4, 𝐶𝑟3 = 20.2, 𝐶𝑟4 = 24.8 • E 𝑟1 = 10.0, 𝐸𝑟2 = 18.9, 𝐸𝑟3 = 24.8, 𝐸𝑟4 = 30.5 • 𝑞𝑖𝑛1 = 𝑞𝑖𝑛2 = 2943𝑘𝐽/𝑘𝑔, 𝑞𝑖𝑛3 = 1335𝑘𝐽/𝑘𝑔, 𝑞𝑖𝑛4 = 387𝑘𝐽/𝑘𝑔 • m 𝑒𝑝 = 𝜂𝑄23 𝑚 (𝑉4−𝑉2) , 𝑚𝑒𝑝2 = 15𝑏𝑎𝑟, 𝑚𝑒𝑝3 = 7.5𝑏𝑎𝑟, 𝑚𝑒𝑝4 = 2.5𝑏𝑎𝑟 • Residual gas mass fraction, fresh air mass, and efficiency calculations: • 𝑚 𝑒 = 𝑃𝑒 𝐴 𝑒 𝑅𝑇𝑒 , mass of the residual gas • 𝑚𝑖 = 𝑃 𝑖 𝐴 𝑖 𝑅𝑇 𝑖 , mass of the fresh air • 𝑓 = 𝑚 𝑒 𝑚 𝑖+𝑚 𝑒 , residual gas fraction rotary; 𝑓 = 1 𝐶𝑟 𝑃𝑒 𝑃4 Τ1 1.3 Otto cycle • 𝜂 = 1 − 𝑇4−𝑇1 𝑇3−𝑇2 , thermal efficiency; 𝜂 𝑜𝑡𝑡𝑜 = 1 − 1 𝐶𝑟 𝑘−1 (k=1.3)
  7. 7. COLD AIR STANDARD ANALYSIS OTTO reciprocat. − 𝐻𝑖𝑔ℎ 𝑙𝑜𝑎𝑑: 𝐶𝑟1 = 10.0, E𝑟1 = 10.0, 𝑞𝑖𝑛1 = 2943𝑘𝐽/𝑘𝑔 HCCI-VCR 𝑟𝑜𝑡𝑎𝑟𝑦 − 𝐻𝑖𝑔ℎ 𝑙𝑜𝑎𝑑: 𝐶𝑟2 = 15.4, E 𝑟2 = 18.9, 𝑞𝑖𝑛2 = 2943𝑘𝐽/𝑘𝑔 HCCI-VCR 𝑟𝑜𝑡𝑎𝑟𝑦 − 𝑀𝑖𝑑 𝑙𝑜𝑎𝑑: 𝐶𝑟3 = 20.2, E 𝑟3 = 24.8, 𝑞𝑖𝑛3 = 1335𝑘𝐽/𝑘𝑔 HCCI-VCR 𝑟𝑜𝑡𝑎𝑟𝑦 − 𝐿𝑜𝑤 𝑙𝑜𝑎𝑑: 𝐶𝑟4 = 24.7, E 𝑟4 = 30.5 , 𝑞𝑖𝑛4 = 387𝑘𝐽/𝑘𝑔 SCENARIOS STATE 1 2 3 4 5 f 𝜼 OTTO RECIPROCATING HIGH LOAD P(kpa) 100 1995 11224 562 0.026 0.50 T(K) 324 647 3642 1825 HCCI-VCR ROTARY HIGH LOAD P(kpa) 100 3496 16252 357 100 0.059 0.59 T(K) 349 793 3689 1528 1139 HCCI-VCR ROTARY MID LOAD P(kpa) 100 4974 12689 195 100 0.087 0.63 T(K) 333 822 2096 800 685 HCCI-VCR ROTARY LOW LOAD P(kpa) 100 6487 9258 108 100 0.13 0.69 T(K) 315 824 1176 422 414
  8. 8. COLD AIR STANDARD ANALYSIS ● High load thermodynamic efficiency is higher compare to an Otto cycle due to the higher compression ratio required to achieve auto ignition ● Part load efficiencies are even higher whereas they decrease for an Otto cycle due to the pumping losses through the throttle at the air intake 𝜂 𝑂𝑇𝑇𝑂−𝐻𝐼𝐺𝐻 𝐿𝑂𝐴𝐷 = 50% 𝜂 𝐻𝐶𝐶𝐼 −𝐻𝐼𝐺𝐻 𝐿𝑂𝐴𝐷 = 59% 𝜂 𝐻𝐶𝐶𝐼 − 𝑀𝐼𝐷 𝐿𝑂𝐴𝐷 = 63% 𝜂 𝐻𝐶𝐶𝐼 −𝐿𝑂𝑊 𝐿𝑂𝐴𝐷 = 69%
  9. 9. APRIL 2014 CONCEPT / IDEA MARCH 2015 PCT APPLICATION SEPTEMBER 2016 US PAT No. 9,435,257 MAY 2017 PROOF OF CONCEPT FEBRUARY 2018 PRODUCT LAB VALIDATION DECEMBER 2018 MINIMUM VIABLE PRODUCT (MVP) DEMONSTRATION TECHNOLOGY ROADMAP MARKET LICENSING FEES & ROYALTIES MVP PRECOMERCIALIZATION
  10. 10. ROTARY POWER CLEAN For more information please join us at the Combustion Institute Canadian Section (CI/CS) 2017 or contact Roberto Fanara on LinkedIn or via e-mail at roberto.fanara@customachinery.com

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