Sense and nonsense thermal requirements [consumer display product example using CFD]

Good thermal requirements form the basis of a good thermal design. Unfortunately, good, workable thermal requirements are a rare commodity. This paper discusses thermal requirements from the setmakers thermal system designer\´s point of view. Different types of thermal requirements are discussed, and different ways of specification. The famous "max operating ambient" specification is discussed, and a method is presented to get a handle on this difficult specification. The method is demonstrated on CFD calculations on a consumer display product.