Engine Waste-Heat Hydrogen Generation With Integrated Emission Control
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Solution Overview
Problem
Existing technologies are inadequate for producing sufficient hydrogen for continuous engine operation using the waste energy from engine exhaust, and they do not effectively integrate hydrogen production with emission control.
Innovation Solution
An apparatus and method that utilize the waste heat from an engine's exhaust and cooling system to produce hydrogen through a steam over hot iron reaction, while simultaneously reducing emissions using a dual-purpose catalytic converter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If waste heat from engine exhaust is used to produce hydrogen, then hydrogen production is enabled, but the available energy is inadequate for producing sufficient hydrogen for continuous operation
Solution Approach 1:
The patent combines the hydrogen production process with the engine cooling system by integrating a heat exchanger that uses waste heat from both exhaust gases and coolant. This merging of functions allows the system to produce sufficient hydrogen by aggregating available thermal energy from multiple sources rather than relying on exhaust heat alone.
Solution Approach 2:
The heat exchanger serves multiple functions simultaneously: it cools the engine (using exhaust and coolant heat), produces hydrogen (using the same waste heat), and can generate steam (using excess heat). This multi-functionality resolves the energy adequacy problem by maximizing utilization of available thermal energy.
2Temperature
If conventional cooling systems are used to cool engine cylinders, then engine temperature is controlled, but heat is wasted and not utilized for hydrogen production
Solution Approach 1:
The patent converts the harmful waste heat that would normally be dissipated into a useful resource for hydrogen production. The heat exchanger captures thermal energy from cooling systems and exhaust gases, transforming what was previously wasted energy into the thermal input required for steam-based hydrogen generation.
Solution Approach 2:
The cooling system serves dual purposes: it cools the engine as before, but simultaneously provides thermal energy for hydrogen production. The waste heat that would have been discarded is now self-utilized to fuel the hydrogen production process, eliminating the need for separate heating systems.
3Object-generated harmful factors
If a dual-purpose catalytic converter is used for emission control and hydrogen production, then emissions are reduced and hydrogen is produced, but device complexity increases
Solution Approach 1:
The patent merges the catalytic converter with the heat exchanger and hydrogen production system into an integrated assembly. The catalytic converter is positioned within the heat exchanger structure, allowing emission control functions to be combined with heat recovery and hydrogen production, thereby reducing overall system complexity despite the multi-functionality.
Solution Approach 2:
The catalytic converter performs multiple functions: it controls emissions (reducing NOx and other harmful gases), generates heat through catalytic reactions, and provides thermal energy for hydrogen production. This multi-functionality eliminates the need for separate emission control and heating devices.
4Productivity
If steam is injected into the reaction chamber to produce hydrogen, then hydrogen production is achieved, but additional energy input is required
Solution Approach 1:
The patent changes the thermal parameters of the reaction chamber by using high-temperature waste heat (exhaust gases and coolant at elevated temperatures) to vaporize water and drive the steam-over-iron reaction. This parameter change allows hydrogen production without additional energy input, as the required thermal energy is supplied by the engine's waste heat.
Solution Approach 2:
The patent converts the harmful waste heat into the beneficial thermal energy needed for steam generation and hydrogen production. The excess heat that would normally be discarded is now the primary energy source for vaporizing water and driving the chemical reaction, eliminating the need for external energy input.
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
Achieves simultaneous hydrogen production and emission control, utilizing waste engine heat to produce hydrogen for fuel, thereby reducing harmful emissions and increasing engine efficiency.
Implementation Method 1
a steam coil in or on the converter. As hot exhaust gases flow through the unit, this energy in a dual-purpose catalytic converter can be utilized for the additional steam
Implementation Method 2
utilizing the catalytic converter properties of converting hazardous waste engine gases into less hazardous products while simultaneously aiding in the production of hydrogen fuel
Implementation Method 3
the cylinders are cooled by air fins on the cylinder and the cylinder head, allowing conducted heat to travel from the cylinder wall and head to the fins
Implementation Method 4
A fan blows air through the radiator and cools the circulating liquid, and then the energy or heat is released into the surrounding air
Data Source
AI summary
Improvements in method of simultaneous hydrogen production and emission control is disclosed as a device that is configured for hydrogen generation methods for auto, truck, and stationary engine use. This apparatus and method may be applied to any single or multi cylinder, rotary engine applications including but not limited to two-stroke, four stroke or multi-cycle and gasoline, diesel, turbine, air compressor and alternative dual fuel or hybrid applications.