Explain the importance of fuel cell thermal management.
What will be an ideal response?
Managing heat is as important as any other aspect of a fuel cell and, in fact, can be one of the main reasons for adopting the technology. As with most engines, fuel cells must operate within relatively narrow ranges and the operating temperature is one of those ranges. Unlike most engines though, fuel cells can be as efficient at lower temperatures as they are at higher temperatures. Managing the heat needed or produced in fuel cells is probably the one thing that produces the most return on investment in fuel cell systems.
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What agency develops and advocates public health policies to prevent food-borne diseases?
A) FDA B) ATF C) EPA D) NOAA
Which of the following formulas is the general voltage divider formula?
A.
B.
C.
D.
Technician Makena worked 8
? hr., 9
hr., 8
hr., 9 hr., and 8middle;" alt="" src="https://sciemce.com/media/3/ppg__cognero__Unit_17_Averages__media__3d8c650c-eb45-4615-88f8-3706301667e5.PNG" data-wiris-created="true" /> hr. one week. What was the length of an average workday for Makena that week?
Fill in the blank(s) with the appropriate word(s).
Iodine deficiency prevents thyroxine from being produced
Indicate whether this statement is true or false.