Off-Grid Beverage Brewer Using Thermoelectric Self-Powering
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Solution Overview
Problem
Current beverage brewers require electrical power to heat water, making them impractical for off-grid use due to the significant power needed to boil water and the need for battery size and replacement.
Innovation Solution
A non-electric, off-grid beverage brewer that uses a burner and hydrocarbon fuel to produce heat, which is converted into electricity by a thermoelectric generator to power its components, eliminating the need for external power sources and battery replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electrical power sources are used to heat water in beverage brewers, then the brewing function is achieved, but the device requires external power sources and battery replacement
Solution Approach 1:
The thermoelectric generator converts waste heat from the combustion process into electrical energy, allowing the system to power its own electrical components without external power sources or battery replacement. The system serves itself by utilizing its own waste heat to generate the electricity needed for operation.
Solution Approach 2:
The waste heat that would otherwise be discarded during combustion is converted into useful electrical energy through the thermoelectric generator. This transforms a harmful waste product (excess heat) into a beneficial resource that powers the brewing system's electrical components.
2Ease of operation
If battery operated systems are used to power beverage brewers, then portability is achieved, but the battery size becomes impractically large
Solution Approach 1:
Instead of relying on large batteries for portability, the system generates its own electricity on-demand through the thermoelectric generator, which converts waste heat into electrical energy. This eliminates the need for heavy battery storage while maintaining portability.
Solution Approach 2:
The system changes the energy storage approach from chemical energy in batteries to thermal energy conversion in real-time. By using the thermoelectric generator to convert waste heat into electricity during operation, the system avoids the weight penalty of large battery capacity.
3Use of energy by moving object
If gas burners are used to heat water, then the necessary energy is provided, but additional complexity is introduced for fuel management
Solution Approach 1:
The gas burner serves multiple functions: it provides heat for water heating and simultaneously generates waste heat that powers the thermoelectric generator to produce electricity for the brewing system. This multi-functionality reduces the need for separate power management systems.
Solution Approach 2:
The heating function and power generation function are merged into a single combustion process. The same flame that heats water also creates the waste heat necessary to drive the thermoelectric generator, combining two essential functions into one integrated system.
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
Enables portable, self-sufficient beverage brewing without the need for electrical power or battery recharging, as the thermoelectric generator powers all electrical components, including pumps and displays, within the brewer.
Implementation Method 1
The thermoelectric generator is structured with a supply side, a waste side and a power output. The supply side is directed towards the surface of the burner. The waste side contacts the reservoir. The power output powers the controller.
Data Source
AI summary
This disclosure provides methods and apparatus for a beverage brewer. The beverage brewer including a burner, a reservoir, a controller, and a thermoelectric generator. The burner produces combustible heat across a surface. The reservoir stores a brewing fluid. The controller controls a brewing process. The thermoelectric generator is structured with a supply side, a waste side and a power output. The supply side is directed towards the surface of the burner. The waste side contacts the reservoir. The power output powers the controller.