Review the state of the art, issues, and research needs relative to cooling
methodologies, heat transfer fluids, equipment (heat exchangers, fans, pumps,
actuators), materials, fabrication, modeling and simulation, underhood airflow,
Assess the potential impact of improved truck thermal-management systems
on energy savings, emissions reduction, and safety.
Present advanced thermal-management concepts and designs and their
Identify barriers to application of advanced concepts and designs.
Establish and prioritize design goals and research needs.
In the workshop, a series of presentations by representatives from industry was followed
by four technical breakout sessions; see the workshop agenda in Appendix A. The presentations
were intended to provide background information and stimulate thinking for the breakout
sessions. Research projects were identified and prioritized in the breakout sessions. A list of
workshop participants is given in Appendix B.
In this report, (a) workshop presentations by representatives from an engine manufacturer,
a truck manufacturer, and various equipment suppliers are summarized in Section 2, relative to
OEM/customer needs, industry trends, and future R&D requirements; (b) recommended research
tasks, categorized as appropriate for industry or appropriate for DOE funding, are listed in
Section 3; (c) barriers to the implementation of new technologies are discussed in Section 4; and
(d) a multiyear plan for DOE-supported research is proposed in Section 5.
The emphasis of the workshop, and of this workshop report and multiyear program plan,
is on heavy-duty, on-highway (Class 7-8) trucks. Nevertheless, it is significant to note that many
of the same challenges in thermal management are shared with the bus, off-highway, and rail
industries. Therefore, the proposed multiyear research plan should be generally applicable to
these segments of the heavy vehicle industry as well.