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Home arrow Resources arrow ASHRAE Glossary
Glossary

 

The terms and definitions included in this glossary were taken from "ASHRAE Terminology of Heating, Ventilation, Air Conditioning & Refrigeration".
To access the complete glossary please visit ASHRAE's Bookstore.


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Term Definition
coil lengthdimension of the face of the coil in the direction of the bare tubes or finned tubes, or both, exposed to the flow of air
 
coil width


dimension of the face of the coil exposed to the flow of air perpendicular to the direction of the tubes
 
coke

solid substance remaining after the partial burning of coal in an oven distillation or in a retort.

 
Colburn heat transfer equation

dimensionless heat transfer equation used in calculating natural convection movement of heat from vertical surfaces or horizontal cylinders to fluids (gases or liquids) flowing past these surfaces. The symbol is jH.

 

 
Colburn mass transfer equation

dimensionless mass transfer equation consisting of the Sherwood number divided by the Reynolds number and the Schmidt number to the 1/3 power. The symbol is jD 

 
cold box

in a gas separation unit, the insulated section which contains the low-temperature heat exchangers and distilla­tion columns 

 
cold chain

continuity of means successively employed to provide the refrigerated preservation of perishable food­stuffs from the production to the consumption stage 

 
cold injury (low-temperature injury)

storage at a temperature below which physiological disorder in produce will manifest itself. This temperature will vary with the produce.

 

 
cold room (cold chamber)

insulated structure served by a refriger­ating system.

 

 
cold room door dike

projection on the door which extends into the refrigerated compart­ment(s) and which functions primarily as a barrier to minimize heat flow to the interior of the cabinet 

 




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