Vertical Heat Engine With Gaseous Working Medium
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Solution Overview
Problem
Existing heat engines based on liquid working media are structurally complex, expensive, and require high tightness in closed circuits, while gas-driven heat engines with temperature expansion are less common and require pressure regulation to prevent gaseous conversion, making them unmanageable.
Innovation Solution
A heat engine design featuring a gaseous working medium with isobaric heat exchangers and a turbine, arranged vertically for compactness and simplicity, using readily available components with minimal maintenance, and capable of operating in low-temperature ranges with small temperature gradients, utilizing gases like air or mixtures for structural simplicity and environmental compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid working media are used in heat engines, then the structural complexity increases and production costs increase, but the operational reliability improves
Solution Approach 1:
The patent changes the working medium from liquid to gaseous state, fundamentally altering the physical parameters of the system. This allows the heat engine to operate without complex pressure regulation mechanisms and condensation equipment, thereby reducing structural complexity while maintaining operational reliability through the natural properties of gas expansion and contraction.
Solution Approach 2:
The patent extracts and removes the condenser component from the heat engine system by using a gaseous working medium instead of liquid. This eliminates the need for phase change and condensation processes, simplifying the overall structure while maintaining the core heat engine functionality through direct gas expansion and compression cycles.
2Reliability
If pressure regulation is installed to prevent gaseous conversion, then the operational reliability improves, but the device complexity and production costs increase
Solution Approach 1:
The gaseous working medium naturally maintains its phase state through the temperature and pressure conditions inherent in the heat engine operation itself, without requiring external pressure regulation mechanisms. The system self-regulates the working medium state through the thermodynamic cycle, eliminating the need for additional complexity while ensuring operational reliability.
3Device complexity
If gas-driven heat engines are used with temperature expansion, then the structural simplicity improves, but the ability to handle small temperature gradients deteriorates
Solution Approach 1:
The patent optimizes the thermal expansion parameters of the gaseous working medium to maximize volume change responses to small temperature variations. By selecting appropriate gas types and adjusting system pressure conditions, the engine achieves high sensitivity to small temperature gradients while maintaining structural simplicity, enabling effective operation in low-temperature-difference environments.
4Reliability
If closed circuits are used, then the operational reliability improves, but the tightness requirements increase and production costs increase
Solution Approach 1:
The patent uses an inert gaseous working medium that does not react with system components or degrade over time, allowing the closed circuit to operate with relaxed tightness requirements. The inert nature of the gas prevents corrosion and chemical reactions that would otherwise demand high sealing standards, thereby reducing production costs while maintaining operational reliability through the stable, non-reactive environment.
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 design achieves high operational reliability, structural simplicity, and a wide range of applications, efficiently converting small temperature differences into usable energy with reduced maintenance and production costs, and supports easy scalability.
Implementation Method 1
the temperature expansion of the respective liquid fluid is used in order to gain mechanically usable work from thermal energy by accelerating the gas
Implementation Method 2
the heated and expanded liquid fluid can rise up a riser and can drive a flow engine arranged after the heater
Implementation Method 3
The vapor is at least partially condensed by means of a condenser and returned to the solar panels so that they can in turn vaporize the liquid
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The invention relates to a heat engine (100, 100', 100'', 100''') having a first heat exchanger (120) which is configured as a heater, having a second heat exchanger (140) which is configured as a cooler, having a turbine (130) which is arranged between the first and the second heat exchanger, and a line system (160) which has a working medium, is configured as a circuit (170) and connects the components (120, 130, 140, 190, 200) to one another in a fluidically conducting manner. If the first heat exchanger (120), the turbine (130) and the second heat exchanger (140) are arranged so as to follow one another in the vertical direction (110) in the installed position (180), the heat engine can be designed as a particularly compact structural unit.