Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power circulation system combined with hydrogen gas turbine and hydrogen fuel cells

A fuel cell and gas turbine technology, which is applied in the direction of fuel cells, gas turbine devices, machines/engines, etc., can solve the problems of low energy conversion efficiency, high cycle efficiency, high power density, and maximum power that cannot meet the demand, so as to achieve full utilization and improve The effect of work performance

Active Publication Date: 2017-06-30
TSINGHUA UNIV
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Neither the hydrogen gas turbine nor the hydrogen fuel cell can meet the two major requirements of high cycle efficiency and high power density at the same time: the pure use of hydrogen gas turbine, although the energy density is relatively high, but in the partial power state, the energy conversion efficiency is low; Although hydrogen fuel cells are environmentally friendly and efficient, the maximum power cannot meet the demand when the volume is limited

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power circulation system combined with hydrogen gas turbine and hydrogen fuel cells
  • Power circulation system combined with hydrogen gas turbine and hydrogen fuel cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 1 Shown is a combined power cycle system of a hydrogen gas turbine and a hydrogen fuel cell provided in this embodiment.

[0028] The hydrogen outlet of the hydrogen storage system 5 is connected to the inlet of the B valve 7 , the first outlet of the B valve 7 is connected to the hydrogen inlet of the hydrogen fuel cell 6 , and the second outlet of the B valve 7 is connected to the hydrogen inlet of the combustion chamber 8 . The hydrogen storage system 5 provides hydrogen for the hydrogen fuel cell 6 and the combustion chamber 8 , and controls and distributes the hydrogen flow to the combustion chamber 8 and the hydrogen fuel cell 5 through the B valve 7 .

[0029] The compressor 3 can be a low-pressure compressor, a medium-pressure compressor or a high-pressure compressor. The inlet of the compressor 3 is connected to the atmosphere, the outlet of the compressor 3 is connected to the inlet of the A valve 4, the first outlet of the A valve 4 is connected ...

Embodiment 2

[0033] like figure 2 Shown is a combined power cycle system of a hydrogen gas turbine and a hydrogen fuel cell provided in this embodiment.

[0034] The difference from the system described in Embodiment 1 is that a high-pressure compressor 2 is added on the connecting branch between the compressor 3 and the combustor 8 of the hydrogen gas turbine. The second outlet of the A valve 4 is connected to the inlet of the high-pressure compressor 2, the outlet of the high-pressure compressor 2 is connected to the air inlet of the combustion chamber 8, the compressor 3, the high-pressure compressor 2, and the motor 1 are connected in sequence, and the motor 1 Simultaneously drive compressor 3 and high-pressure compressor 2.

[0035] Likewise, the compressor 3 may be a low-pressure compressor, a medium-pressure compressor or a high-pressure compressor. In this embodiment, the compressor 3 is a low-pressure compressor.

[0036] The efficiency and power density of the hydrogen gas tur...

Embodiment 3

[0038] This embodiment is used to illustrate the working principle of the combined power cycle system of the hydrogen gas turbine and the hydrogen fuel cell described in the above embodiments 1-2.

[0039] The system can work in three operating modes: hydrogen fuel cell 6 alone operation mode, hydrogen gas turbine alone operation mode, hydrogen fuel cell 6 and hydrogen gas turbine combined operation mode.

[0040] The hydrogen fuel cell 6 is suitable for a stable working state, and when the system needs to output part of the power with high efficiency, the hydrogen fuel cell operates alone. At this time, the B valve 7 is activated to connect the hydrogen storage system 5 with the hydrogen fuel cell 6, and the hydrogen storage system 5 is disconnected from the combustion chamber 8; the A valve 4 is activated to connect the compressor 3 with the hydrogen fuel cell 6, and the compressor 3 is connected to the combustion chamber 8. The combustion chamber 8 is disconnected; the hydr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a power circulation system combined with a hydrogen gas turbine and hydrogen fuel cells. The power circulation system comprises hydrogen fuel cells and a combustion chamber; two paths of a hydrogen source are connected to the hydrogen fuel cells and the combustion chamber respectively; two paths of compressed air provided by an air compressor are connected to the hydrogen fuel cells and the combustion chamber respectively, and the air compressor is driven by a motor; the hydrogen fuel cells and exhaust lines of the combustion chamber are combined and connected to the turbine connected to the motor coaxially for power generation. The system can work in three operation modes: when the system needs to output partial power efficiently, the system operates by using the hydrogen fuel cells only. When the system needs to output high power quickly within a short time, the system operates by using the hydrogen gas turbine only. When the system needs to output total power, the system operates by using the hydrogen fuel cells and the combustion chamber jointly.

Description

technical field [0001] The invention belongs to the technical field of combined cycle systems for comprehensive utilization of hydrogen fuel, and in particular relates to a combined power cycle system of a hydrogen gas turbine and a hydrogen fuel cell. Background technique [0002] The gas turbine has few moving parts, simple and compact structure, can burn a variety of fuels, has low fuel consumption rate and high efficiency. Hydrogen has become an ideal alternative fuel for gas turbines due to its high calorific value, zero pollution and wide range of sources. In a hydrogen gas turbine, hydrogen reacts with compressed air to generate high-temperature mixed gas, which outputs mechanical work through the turbine. Moreover, the mass energy density of hydrogen is very high, so that the hydrogen gas turbine has a high energy density. [0003] Proton exchange membrane fuel cell has the characteristics of high energy conversion efficiency and non-polluting emissions. It is one ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F02C3/22F02C6/00H01M8/04111
CPCF02C3/22F02C6/00F05D2220/76H01M8/04111Y02E60/50
Inventor 张扬军金宇智钱煜平诸葛伟林
Owner TSINGHUA UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com