Binary cycle power system

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing binary cycle power systems are limited by their dependence on volcanic activity for geothermal heat, restricting their deployment to areas with such activity.

Innovation Solution

A binary cycle power system that utilizes an industrial heat pump to extract heat from surrounding air or water bodies, such as lakes or seawater, and transfers this heat to a binary fluid in a heat exchanger, allowing for the generation of electrical power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If geothermal heat from volcanic activity is used, then clean electrical power can be generated, but the system can only be deployed in areas with volcanic activity

Engineering Contradiction:
Improvedeployment location flexibilityVSAvoidheat source availability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces an intermediary heat transfer system using a binary fluid (such as isobutane or pentane) that acts as a mediator between the heat pump and the turbine. This intermediary fluid enables heat transfer from ambient sources (air, water, or ground) to drive the power generation cycle, allowing deployment in locations without direct volcanic activity while maintaining reliable power generation through the heat pump's ability to extract heat from various ambient sources.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If industrial heat pump is used to extract heat from ambient sources, then deployment location flexibility is improved, but additional equipment complexity is introduced

Engineering Contradiction:
Improvedeployment location flexibilityVSAvoidsystem equipment complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The heat pump system is designed with multi-functionality to extract heat from various ambient sources including air, water, and ground, allowing the same basic system architecture to be deployed in different locations without requiring complete redesign. The binary fluid heat exchanger system serves multiple functions: heat absorption from ambient sources, heat transfer to the turbine cycle, and enabling power generation across diverse environmental conditions.

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

Solution Approach 2:

The patent replaces direct mechanical heat sources (such as volcanic vents or steam vents) with a thermodynamic heat pump system that uses phase change of binary fluids to transfer heat. This substitution allows the system to operate with low-temperature heat sources from the ambient environment rather than requiring high-temperature mechanical heat sources, thereby increasing deployment flexibility while managing system complexity through established heat pump technology.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical 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 the generation of clean and sustainable electrical power independently of volcanic activity, utilizing readily available heat sources from the environment.

Implementation Method 1

The heat pump transfers heat from a second fluid circulating in the heat pump to the first fluid so that the first fluid evaporates

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

a first fluid, i.e. a binary fluid having a low boiling point, in order to evaporate the first fluid

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

The turbine converter converts energy of the evaporated first fluid to mechanical energy

Methodology Applied
Scientific EffectEnergy conversion: Heat Engine

Implementation Method 4

the electrical generator generates the electrical power from the mechanical energy

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 5

a first condenser for condensing the evaporated first fluid

Methodology Applied
Scientific EffectCondensation: Condensation

Data Source

PatentEP3987157B1Binary cycle power system
Publication Date: 2025.04.02 WERESCO OY
  • EP3987157B1 patent drawing

AI summary

The application relates to a binary cycle power system (100) for generating electrical power. The system comprises a heat exchanger (116) for evaporating a first fluid (106), a turbine converter (120), an electrical generator (122), and a first condenser (124) for condensing the evaporated first fluid. The turbine converter converts energy of the evaporated first fluid to mechanical energy and the electrical generator generates the electrical power from the mechanical energy. The heat exchanger is a second condenser (116), which is a part of a heat pump (110) that transfers heat from a second fluid (108) circulating in the heat pump to the first fluid so that the first fluid evaporates.