Centralized Hot Water Heating for Emission-Free Weed Control
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Solution Overview
Problem
Current weed control methods using hot water for large-scale applications face environmental issues due to fossil fuel combustion, noise, and limited maneuverability, especially in urban areas, as they require local heating and combustion engines.
Innovation Solution
A system where water is heated at a central location using green energy or waste energy, then stored in an insulated reservoir for efficient transportation and use in emission-free, electrically driven vehicles, reducing environmental impact and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water is heated locally using a fossil fuel burner for large-scale weed control, then the heating capacity is sufficient for large areas, but local emissions of CO2 and particulates increase
Solution Approach 1:
The system divides the heating function into two parts: a centralized heating plant that generates hot water in large quantities, and multiple mobile watering vehicles that distribute the pre-heated water to various locations. This segmentation allows the heating process to be separated from the distribution process, enabling centralized efficient heating without local emissions at weed control sites.
Solution Approach 2:
The patent introduces an intermediary substance (pre-heated water stored in insulated tanks) that transfers thermal energy from the centralized heating plant to the remote weed control locations. This intermediary allows the heat to be transported without requiring local combustion, thus eliminating local emissions while maintaining heating capacity.
2Ease of operation
If a fossil fuel burner is used to heat water at the weed control location, then hot water can be provided on-demand, but noise and stench nuisance are generated
Solution Approach 1:
The system separates the noisy heating operation from the quiet distribution operation. The centralized heating plant handles the thermal processing away from sensitive areas, while the mobile vehicles equipped with insulated tanks transport and dispense the pre-heated water silently at the weed control locations.
Solution Approach 2:
The water is pre-heated at the centralized plant before distribution. This preliminary heating action allows the mobile vehicles to simply transport and spray the already-heated water without requiring local combustion equipment, thereby eliminating noise and stench at the operation site while maintaining on-demand capability.
3Ease of operation
If a vehicle with a combustion engine is used to transport and heat water, then mobility is achieved, but emissions occur during transport
Solution Approach 1:
The combustion engine function is extracted from the mobile watering vehicles and relocated to a fixed centralized heating plant. The mobile vehicles are converted to electric or emission-free propulsion, keeping only the essential mobility function while removing the harmful emissions function to a centralized location where emissions can be better managed.
4Object-generated harmful factors
If a manual reservoir device is used for weed control, then no emissions occur, but the reservoir size is limited and water cools before use
Solution Approach 1:
The patent creates a scaled-up version of the manual reservoir concept using large insulated tanks mounted on mobile vehicles. These vehicle-mounted reservoirs replicate the emission-free advantage of manual devices while providing much larger water volumes suitable for large-scale weed control operations, and the insulation prevents cooling during transport.
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
This approach minimizes local emissions and noise, enhances maneuverability, and allows for efficient, large-scale weed control with reduced environmental impact by using green energy and electric vehicles, maintaining hot water efficiency and reducing water cooling issues.
Implementation Method 1
the combustion heat of this waste for heating water
Implementation Method 2
storing the water, once it has been heated, in insulated manner in the watering vehicle, for instance in a thermos reservoir
Implementation Method 3
The water in supply reservoir 30 can be circulated along heat exchanger 22 by means of pumps 23, 24 so that the water in reservoir 30 is heated
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a method for controlling weed in an area, comprising of heating water at least at one heating location, supplying the heated water to a watering vehicle at the heating location, displacing the vehicle to the area with the weed to be controlled, and spraying the weed with the hot water while displacing the vehicle through the area, and to a device for controlling weed in an area, comprising a vehicle (1) provided with a reservoir (2) for hot water, a sprayer (3) for spraying an area to be rid of weed with the hot water from the reservoir and a drive (6) which is emission-free during use, such as an electrical drive.