Terahertz Material Combustion Efficiency Emission Reduction
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Solution Overview
Problem
Current technologies face challenges in simultaneously reducing hydrocarbons, nitrogen oxides, and carbon monoxide emissions from gasoline vehicle exhausts, while also improving fuel efficiency, which is limited by a maximum energy conversion rate of 42%.
Innovation Solution
A terahertz material composed of specific raw materials (SiOx, Al2O3, SiO2, Fe2O3, ochre, barium tungstate, CaCO3, and Binchotan) is developed, which, when processed and enhanced using a terahertz irradiation line, achieves high infrared emissivity and improved combustion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If combustion efficiency is improved by raising combustion temperature, then fuel energy conversion is improved, but nitrogen oxides production increases
Solution Approach 1:
The patent applies parameter changes by introducing a terahertz material that modifies the combustion process parameters. The material absorbs terahertz waves and converts them to thermal energy, creating localized high-temperature zones that enhance combustion efficiency without proportionally increasing nitrogen oxide formation. This changes the temperature distribution pattern in the combustion chamber, achieving better fuel conversion while controlling harmful emissions through altered thermal parameters.
Solution Approach 2:
The patent uses a composite material comprising multiple components (silicon oxide, aluminum oxide, iron oxide, ochre, barium tungstate, calcium carbonate, and binchotan) working together. Each component contributes different properties: silicon oxide and aluminum oxide provide structural framework and thermal stability, iron oxide enhances catalytic activity, ochre and barium tungstate contribute to terahertz absorption, and binchotan provides porous structure for gas interaction. This composite structure achieves synergistic effects that simultaneously improve combustion efficiency and reduce nitrogen oxide formation.
2Use of energy by moving object
If combustion temperature is raised to improve fuel conversion, then energy efficiency increases, but hydrocarbons and carbon monoxide reduction becomes difficult
Solution Approach 1:
The terahertz material changes the thermal parameters in the combustion chamber by absorbing terahertz radiation and converting it to localized heat. This creates optimized temperature profiles that enhance the breakdown of hydrocarbons and carbon monoxide while improving overall energy conversion. The parameter change in temperature distribution enables simultaneous reduction of multiple harmful emissions.
Solution Approach 2:
The iron oxide component in the composite material acts as a catalyst that accelerates oxidation reactions. By providing catalytic surfaces and active sites, it promotes the oxidation of hydrocarbons and carbon monoxide to carbon dioxide and water, effectively reducing harmful emissions while the terahertz heating enhances the overall oxidation process efficiency.
3Productivity
If current engine technology is used to improve thermal efficiency, then various means are exhausted, but maximum energy conversion rate remains limited to 42%
Solution Approach 1:
The patent replaces conventional mechanical and chemical combustion enhancement methods with a field-based approach using terahertz radiation. Instead of relying solely on mechanical compression and chemical fuel additives, the system uses electromagnetic field energy (terahertz waves) to directly heat and activate the combustion process. This substitution enables energy conversion rates exceeding 47-50% by adding a new energy interaction mechanism that bypasses traditional efficiency limitations.
Solution Approach 2:
The terahertz material performs multiple functions simultaneously: it absorbs terahertz waves, converts them to thermal energy, catalyzes combustion reactions, reduces harmful emissions, and improves energy conversion efficiency. This multi-functionality allows a single component to address multiple performance limitations of conventional engines, achieving breakthrough energy conversion rates without requiring multiple separate systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The terahertz material effectively reduces hydrocarbons, nitrogen oxides, and carbon monoxide emissions by up to 99%, 90%, and 5% respectively, while improving energy conversion rate to 47-50%, and reducing urban PM2.5 by 15-20%.
Implementation Method 1
after enhancing by a terahertz irradiation line to obtain a terahertz materials for emission reduction and fuel saving of a gasoline vehicle
Implementation Method 2
detecting its infrared emissivity, which is ≥0.92
Data Source
AI summary
A terahertz material for emission reduction and fuel saving of gasoline vehicles and its preparation method and application, includes the following raw materials in parts by weight: 20˜35 SiOx, 3˜15 Al2O3, 25˜45 SiO2, 15˜25 Fe2O3, 20˜40 ochre, 0.5˜2 barium tungstate, 15˜25 CaCO3, wherein a preparation method includes: mixing the component raw materials according to the above ratio; after crushing, performing heating to 600˜1,200° C. in an oxygen-free environment, maintaining the temperature for 3˜8 hours, and then performing crushing for the second time; and performing enhancement processing with terahertz irradiation rays at 10 mW to 100 W for 5 seconds to 1 hour to obtain a terahertz material, wherein the terahertz material improves combustion efficiency by increasing the molecular activity of gasoline and air participating in combustion work and reducing molecular groups, and has the effects of emission reduction, energy saving and improving power.