In-Ground Geothermal Generator with Closed-Loop Heat Exchange
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Solution Overview
Problem
Current geothermal energy technologies are limited by the availability of shallow hydrothermal reservoirs and inefficient use of heat from hot rocks, and existing methods for desalination and pollution prevention in the Salton Sea have been impractical and costly.
Innovation Solution
A self-contained in-ground geothermal generator and heat exchanger system that utilizes heat from hot rocks to produce electricity, combined with a pipeline system for importing seawater and desalination, which includes a closed-loop thermally insulated tube system for efficient heat transfer and a modified in-line pump for fluid circulation, enabling the generation of clean energy and potable water while addressing pollution issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional geothermal power plants are built using shallow hydrothermal reservoirs, then electricity generation is achieved, but the system is limited by the availability and depth of such reservoirs
Solution Approach 1:
Instead of bringing hot water from shallow reservoirs to the surface as in conventional plants, this invention inverts the approach by lowering a complete power generation system (boiler, turbine, generator, condenser) directly into deep wells to extract heat from hot dry rocks at depths of 3-10 miles, where temperatures exceed 300°C
Solution Approach 2:
The invention introduces a working fluid (water or organic fluid) as an intermediary that circulates through the closed-loop system underground, absorbing heat from hot dry rocks and transferring it to generate steam or vapor that drives the turbine, enabling energy extraction from depths inaccessible to conventional methods
2Power
If heat from hot rocks is extracted using conventional methods, then some electricity is generated, but the efficiency of heat utilization is low
Solution Approach 1:
The closed-loop circulation system continuously pumps working fluid through the underground heat exchange formation, maintaining continuous heat extraction and energy conversion without interruption, maximizing the utilization of available geothermal heat resources
Solution Approach 2:
The system operates at high temperatures (300°C+) and pressures encountered at depths of 3-10 miles, using these extreme parameters to efficiently generate high-pressure steam or vapor that drives turbines, thereby improving the thermodynamic efficiency of heat-to-electricity conversion
3Object-affected harmful factors
If desalination methods are applied to the Salton Sea to prevent pollution, then water quality improves, but the cost and practicality become prohibitive
Solution Approach 1:
The system uses the Salton Sea's own salty water as the working fluid in the geothermal power plant, eliminating the need for separate desalination infrastructure. The salty water circulates through the closed-loop system, absorbs geothermal heat, and returns to the lake, simultaneously generating electricity and preventing pollution without additional desalination costs
Solution Approach 2:
The geothermal power plant serves multiple functions: generating electricity, preventing pollution by containing salty water, and potentially providing desalinated water as a byproduct, thereby addressing multiple problems with a single 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
This system provides a cost-effective and sustainable method for generating clean energy and producing potable water, reducing pollution and environmental impact, and transforming the Salton Sea into a profitable and environmentally sustainable asset.
Implementation Method 1
a heat exchanger with a first coil and a second coil, the first coil in communication with the geothermal water and the second coil in communication with the atmosphere
Implementation Method 2
a turbine in communication with the heat exchanger and in communication with a generator, wherein the turbine rotates in response to phase change of the working fluid
Implementation Method 3
an in-line pump for fluid circulation, which can be used for cross-country pipelines
Implementation Method 4
A self-contained in-ground geothermal generator and heat exchanger system that utilizes heat from hot rocks to produce electricity
Data Source
AI summary
Provided here is an architectural plan (the solution) for the restoration of the terminal lake, the Salton Sea, an area of prevalent geothermal sources. It includes division of the Lake into three sections, preventing pollution of the Lake from nearby farmlands and importing seawater in central section with pipeline system; providing condition for tourism, and wildlife sanctuary; generating electricity by harnessing hydro, solar, and geothermal energy; and producing potable water and lithium as byproducts. Also includes a system and method for harnessing geothermal energy for generation of electricity by using complete closed loop heat exchange systems combined with onboard drilling apparatus. The system includes several devices operating separately in many different applications in energy sectors, Also, included is alternative use for the In-Line-Pump for marine crafts propulsion.