Intercooled Recuperated Reheated Gas Turbine for Vehicle Climate Control

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Solution Overview

Problem

Current turbomachine systems for motor vehicles face challenges in efficiently utilizing heat and exhaust energy for both heating and cooling, leading to high energy consumption and limited flexibility in integration and power generation.

Innovation Solution

A turbomachine device with a first and second turbocompressor, a stream intercooler, and a heat exchanger, configured to produce interior cold and heat using a fluid stream, incorporating a bypass system and additional heat exchangers to optimize energy recovery and reduce fuel consumption, with separate axes turbocompressors and integrated electrical generators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single turbocompressor system is used, then the device complexity is reduced, but the energy efficiency and power generation capability are limited

Engineering Contradiction:
Improvesystem complexityVSAvoidenergy efficiency
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent divides the single turbocompressor system into two separate turbocompressors (first and second), each with independent compressors and turbines operating on separate axes. This segmentation allows independent optimization of each unit for different functions: one primarily for compression and the other for power generation, thereby improving overall energy efficiency while managing system complexity through modular design

Inventive Principle:
Principle #1Segmentation

2Use of energy by moving object

If heat recovery systems are added to utilize exhaust energy, then the fuel consumption is reduced, but the device complexity increases

Engineering Contradiction:
Improvefuel consumptionVSAvoidsystem complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into the dual turbocompressor system: compression, power generation, heat recovery, and climate control. The first turbine's exhaust heat is recovered through heat exchangers to provide climate control, while the second turbine generates electrical power. This integration of multiple functions into a unified system reduces overall fuel consumption without proportionally increasing complexity

Inventive Principle:
Principle #5Merging (Combining)

3Power

If multiple heat exchangers and bypass systems are incorporated, then the thermal energy production is enhanced, but the system volume and mass increase

Engineering Contradiction:
Improvethermal energy productionVSAvoidsystem volume
Core Design Contradiction:
PowerVSVolume of moving object

Solution Approach 1:

The patent designs the heat exchangers to serve multiple purposes: recovering heat from turbine exhaust, providing climate control for the vehicle interior, and generating thermal energy for various vehicle systems. The bypass systems enable flexible routing of exhaust gases to different heat exchangers based on thermal demand. This multi-functionality maximizes thermal energy production while minimizing the number and size of individual components

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

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 solution enables significant reduction in fuel consumption by effectively utilizing turbomachine heat and exhaust energy for vehicle interior climate control, improving energy efficiency and reducing system complexity, mass, and volume, while enhancing power generation and thermal energy production.

Implementation Method 1

a stream intercooler connected to the first compressor and to the second compressor

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

a heat exchanger, preferably connected to an exhaust outlet and to the second compressor

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 3

a first turbine; a second turbine... configured to send a first fluid stream from the first compressor to the intercooler, to the second compressor, to the heat exchanger, and to the turbines

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Data Source

PatentUS20240149644A1Tri-generation turbomachine device and vehicle comprising such a device
Publication Date: 2024.05.09 PSA AUTOMOBILES SA
  • US20240149644A1 patent drawing
  • US20240149644A1 patent drawing
  • US20240149644A1 patent drawing

AI summary

The invention relates to a turbomachine device of the intercooled recuperated reheated gas turbine (IRReGT) type. The invention relates to applications for motor vehicles. The turbomachine device comprises a first turbocompressor (C1, T2), a second turbocompressor (C2, T1), two combustion chambers (CC1, CC2) or an exhaust line (EL), an intercooler (IC) and a heat exchanger (E1). The device is configured to implement a stream of fluid (F1) from the first compressor (C1) to the intercooler (IC), to the second compressor (C2), to the heat exchanger (E1), to the turbines (T1, T2). According to one aspect, the device comprises at least one vehicle interior air conditioning section comprising at least a means for producing cold (E1F, E2F) and/or heat (E1C) on the basis of said stream (F1).