KCR Software Package COLDPLATE. The packaging of electrical equipment into smaller, tighter containers has
created heat concentration problems which threaten the reliability of electrical
equipment. Maintaining long life in the field is generally as important to a
reputable manufacturer as the initial design and function of the product. Since
life expectancy of an electrical component is highly dependent on its operation
temperature, it becomes desirable to maintain a cool environment for those
components. One way to accomplish this in a high density packaging arrangement
is with the use of finned cold plates. With heat concentration problems arising
from packaging of electrical components, analysis of cold plates for size and
performance is a necessity for product design. Our COLDPLATE Analysis Routine
follows Kays and London's analysis procedure but takes it a step further.
COLDPLATE can analyze straight fin stock as well as pin fin and lanced offset
fin cold plates thus allowing the user more freedom.
COLDPLATE analyzes cold plates the user has divided into sections and
determines actual temperatures for those specific sections rather than one
temperature for the whole plate. Through this technique, the routine provides
results for discrete locations. This is a one dimensional routine when used on
the IBM Personnel Computer thus the plate should be divided along the length
perpendicular to the fluid. For two dimensional mode analysis.
COLDPLATE gives specific fluid and plate temperatures for discrete locations.
COLDPLATE determines Heat Transfer Coef., Pressure Drop, Plate Temperature,
Air Temperature, Dynamic Head, and Fin Efficiency.
COLDPLATE determines Colburn Number and Friction Factor based on straight
COLDPLATE allows the user to input his own Colburn Number and Friction
Factor to facilitate the analysis of Pin and Lanced Offset Fins.
COLDPLATE includes correction factors to compensate for manufacturing
imperfections, low Reynolds numbers, and limiting Nusselt numbers.
This routine is very self explanatory and user friendly. A user's manual is
not needed since the user is led through the routine by questions and statements.