A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat

Thumbnail image of item number 1 in: 'A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat'.
Thumbnail image of item number 2 in: 'A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat'.
Thumbnail image of item number 3 in: 'A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat'.
Thumbnail image of item number 4 in: 'A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat'.
Showing 1-4 of 62 pages in this thesis.

PDF Version Also Available for Download.

Description

Waste-heat-to-power (WHP) recovers electrical power from exhaust heat emitted by industrial and commercial facilities. Waste heat is available in enormous quantities. The U.S. Department of Energy estimates 5-13 quadrillion BTUs/yr with a technical potential of 14.6 GW are available and could be utilized to generate power by converting the heat into electricity. The research proposed here will define a system that can economically recover energy from waste heat through a thermal regenerative electrochemical system. The primary motivation came from a patent and the research sponsored by the National Renewable Energy Laboratory (NREL). The proposed system improves on this patent in … continued below

Physical Description

vii, 54 pages

Creation Information

Gray, David B May 2021.

Context

This thesis is part of the collection entitled: UNT Theses and Dissertations and was provided by the UNT Libraries to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 59 times. More information about this thesis can be viewed below.

Who

People and organizations associated with either the creation of this thesis or its content.

Author

Chair

Committee Members

Publisher

Rights Holder

For guidance see Citations, Rights, Re-Use.

  • Gray, David B

Provided By

UNT Libraries

The UNT Libraries serve the university and community by providing access to physical and online collections, fostering information literacy, supporting academic research, and much, much more.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this thesis. Follow the links below to find similar items on the Digital Library.

Degree Information

Description

Waste-heat-to-power (WHP) recovers electrical power from exhaust heat emitted by industrial and commercial facilities. Waste heat is available in enormous quantities. The U.S. Department of Energy estimates 5-13 quadrillion BTUs/yr with a technical potential of 14.6 GW are available and could be utilized to generate power by converting the heat into electricity. The research proposed here will define a system that can economically recover energy from waste heat through a thermal regenerative electrochemical system. The primary motivation came from a patent and the research sponsored by the National Renewable Energy Laboratory (NREL). The proposed system improves on this patent in four major ways: by using air/oxygen, rather than hydrogen; by eliminating the cross diffusion of counter ions and using a dual membrane cell design; and by using high concentrations of electrolytes that have boiling points below water. Therefore, this system also works at difficult-to-recover low temperatures. Electrochemical power is estimated at 0.2W/cm2, and for a 4.2 M solution at 1 L/s, the power of a 100 kW system is 425 kW. Distillation energy costs are simulated and found to be 504 kJ/s for a 1 kg/s feed stream. The conversion efficiency is then calculated at 84%. The Carnot efficiency for a conservative 50% conversion efficiency is compared to the ideal Carnot efficiency. Preliminary work suggests an LCOE of 0.6¢/kWh. Industrial energy efficiency could be boosted by up to 10%. Potential markets include power stations, industrial plants, facilities at institutions like universities, geothermal conversion plants, and even thermal energy storage.

Physical Description

vii, 54 pages

Language

Item Type

Identifier

Unique identifying numbers for this thesis in the Digital Library or other systems.

Collections

This thesis is part of the following collection of related materials.

UNT Theses and Dissertations

Theses and dissertations represent a wealth of scholarly and artistic content created by masters and doctoral students in the degree-seeking process. Some ETDs in this collection are restricted to use by the UNT community.

About | Browse this Collection

What responsibilities do I have when using this thesis?

Digital Files

When

Dates and time periods associated with this thesis.

Creation Date

  • May 2021

Added to The UNT Digital Library

  • May 26, 2021, 9:20 p.m.

Description Last Updated

  • March 14, 2022, 6:05 p.m.

Usage Statistics

When was this thesis last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 59
More Statistics

Interact With This Thesis

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat'.
Thumbnail image of item number 2 in: 'A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat'.
Thumbnail image of item number 3 in: 'A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat'.
Thumbnail image of item number 4 in: 'A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Gray, David B. A Novel Thermal Regenerative Electrochemical System for Energy Recovery from Waste Heat, thesis, May 2021; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc1808390/: accessed December 2, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .

Back to Top of Screen