Heat Exchangers for Heavy Vehicles Utilizing High Thermal Conductivity Graphite Foams
Abstract
Approximately two thirds of the world's energy consumption is wasted as heat. In an attempt to reduce heat losses, heat exchangers are utilized to recover some of the energy. A unique graphite foam developed at the Oak Ridge National Laboratory (ORNL) and licensed to Poco Graphite, Inc., promises to allow for novel, more efficient heat exchanger designs. This graphite foam, Figure 1, has a density between 0.2 and 0.6 g/cm 3 and a bulk thermal conductivity between 40 and 187 W/m{center_dot}K. Because the foam has a very accessible surface area (> 4 m 2 /g) and is open celled, the overall heat transfer coefficients of foam-based heat exchangers can be up to two orders of magnitude greater than conventional heat exchangers. As a result, foam-based heat exchangers could be dramatically smaller and lighter.
- Authors:
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EE) (US)
- OSTI Identifier:
- 770964
- Report Number(s):
- SAE/TPS-2000-01-2207
ISSN 0148-7191; TRN: US200205%%110
- DOE Contract Number:
- AC05-96OR22464
- Resource Type:
- Conference
- Resource Relation:
- Conference: Government/Industry Meeting, Washington, DC (US), 06/19/2000--06/21/2000; Other Information: PBD: 19 Jun 2000
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS; ENERGY CONSUMPTION; GRAPHITE; HEAT EXCHANGERS; HEAT TRANSFER; SURFACE AREA; THERMAL CONDUCTIVITY; VEHICLES; HEAT RECOVERY EQUIPMENT; FOAMS
Citation Formats
James Klett, Ron Ott, and McMillan, April. Heat Exchangers for Heavy Vehicles Utilizing High Thermal Conductivity Graphite Foams. United States: N. p., 2000.
Web.
James Klett, Ron Ott, & McMillan, April. Heat Exchangers for Heavy Vehicles Utilizing High Thermal Conductivity Graphite Foams. United States.
James Klett, Ron Ott, and McMillan, April. 2000.
"Heat Exchangers for Heavy Vehicles Utilizing High Thermal Conductivity Graphite Foams". United States. https://www.osti.gov/servlets/purl/770964.
@article{osti_770964,
title = {Heat Exchangers for Heavy Vehicles Utilizing High Thermal Conductivity Graphite Foams},
author = {James Klett, Ron Ott and McMillan, April},
abstractNote = {Approximately two thirds of the world's energy consumption is wasted as heat. In an attempt to reduce heat losses, heat exchangers are utilized to recover some of the energy. A unique graphite foam developed at the Oak Ridge National Laboratory (ORNL) and licensed to Poco Graphite, Inc., promises to allow for novel, more efficient heat exchanger designs. This graphite foam, Figure 1, has a density between 0.2 and 0.6 g/cm 3 and a bulk thermal conductivity between 40 and 187 W/m{center_dot}K. Because the foam has a very accessible surface area (> 4 m 2 /g) and is open celled, the overall heat transfer coefficients of foam-based heat exchangers can be up to two orders of magnitude greater than conventional heat exchangers. As a result, foam-based heat exchangers could be dramatically smaller and lighter.},
doi = {},
url = {https://www.osti.gov/biblio/770964},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 19 00:00:00 EDT 2000},
month = {Mon Jun 19 00:00:00 EDT 2000}
}