Hydrogen Fuel Cell Heat Sterilization for Quiet Room Disinfection

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Solution Overview

Problem

Existing methods for disinfecting physical spaces, such as hotel rooms, are either ineffective against pests and microorganisms or pose environmental and health risks due to chemical residues and noise pollution from external heaters powered by internal combustion engines.

Innovation Solution

A self-contained, hydrogen fuel cell powered system that uses heat to sterilize physical spaces by generating electrical power from hydrogen, which is then used to produce heated air for disinfection, while also incorporating UV light, aerosols, and filtration for comprehensive treatment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical treatments are used for disinfection, then disinfection effectiveness is improved, but harmful residues and health risks are generated

Engineering Contradiction:
Improvedisinfection effectivenessVSAvoidchemical residues
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the fundamental parameter of disinfection from chemical to thermal, using elevated temperatures (typically 45-50°C or higher) to achieve disinfection without chemical substances. This parameter change eliminates chemical residues while maintaining disinfection effectiveness through heat-denaturation of microbial proteins and enzymes.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the chemical mechanism of disinfection with a thermal/physical mechanism. Instead of using chemical reactions to kill microorganisms, the system uses controlled heating to denature microbial structures, substituting a physical process for a chemical one to avoid harmful residues.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Temperature

If external heaters powered by internal combustion engines are used, then heat treatment effectiveness is improved, but noise pollution and visual disturbance are generated

Engineering Contradiction:
Improveheat treatment effectivenessVSAvoidnoise pollution
Core Design Contradiction:
TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent extracts and eliminates the internal combustion engine from the disinfection system, replacing it with an electric heating element and air circulation system. This separation removes the noise-generating component while retaining the essential thermal disinfection function, thereby eliminating noise pollution and visual disturbance associated with external engines.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical internal combustion engine with an electrical system for heat generation. Instead of using combustion mechanics to produce heat, the system uses electrical resistance heating and electric air movers, substituting a quieter, cleaner energy conversion method that eliminates noise pollution.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If chemicals are mixed for enhanced disinfection, then disinfection effectiveness is improved, but safety risks and complexity increase

Engineering Contradiction:
Improvedisinfection effectivenessVSAvoidchemical mixing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the complex chemical mixing system with a simple thermal system. Instead of requiring multiple chemicals to be mixed in specific ratios and sequences, the system uses controlled heating with a single parameter (temperature) to achieve disinfection, dramatically reducing operational complexity and safety risks.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a universal disinfection system based on thermal principles that can treat various types of microorganisms (bacteria, viruses, fungi, spores) and different surfaces or environments using the same mechanism. This single thermal approach replaces multiple specialized chemical treatments, simplifying the system while maintaining broad effectiveness.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system effectively kills insects and microorganisms, reduces allergens and odors, and operates silently and unobtrusively, avoiding the drawbacks of chemical treatments and external heat sources.

Implementation Method 1

a hydrogen fuel cell that is adapted to receive the hydrogen and that is operable to use the hydrogen to generate electrical power

Methodology Applied
Scientific EffectFuel cell: Fuel Cell

Implementation Method 2

a heater that is adapted to receive the electrical power and that is operable to produce heated air

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 3

The system uses heat as an effective disinfectant agent while avoiding the problems of the known heat-based disinfection systems and methods. The system also provides additional options for treating against microorganisms, pollen and other allergens, and/or unwanted odors employing aerosols, ultraviolet light, and filtration.

Methodology Applied
Scientific EffectThermal energy: Heating

Implementation Method 4

The system also provides additional options for treating against microorganisms, pollen and other allergens, and/or unwanted odors employing aerosols, ultraviolet light, and filtration.

Methodology Applied
Scientific EffectUltraviolet light: Light

Data Source

PatentUS12334603B2System to sterilize a physical space
Publication Date: 2025.06.17 BWR INNOVATIONS LLC
  • US12334603B2 patent drawing
  • US12334603B2 patent drawing
  • US12334603B2 patent drawing

AI summary

A system for sterilizing a physical space, such as a hotel room. The system generates and distributes heated air to the physical space to elevate the temperature of the space to a level sufficient to achieve a desired sterilization effect of eradicating insects and microoganisms. The system is portable and self-contained. The system includes a hydrogen fuel cell that generates electrical power. An electrical system conditions and stores the electrical power and supplies stored electrical power to the system components and peripherals. System components include a source of hydrogen, a heater, an air distributor, and a filter. Peripherals include a UV light source and an aerosol dispenser. The combination of heat, UV light and aerosol disinfectant effectively eradicates insects, microorganisms, allergens, and odors in the physical space.