Leungs alternative method for tempered hybrids

LeungI15] gives an alternative method for tempered hybrid systems (see 4.2) which is slightly more rigorous than that given in 8.3.1 but takes longer to evaluate. The method assumes  

The method is used within the computer code VSSPH[15] (see A4.4). 

Direct scale-up from a small-scale experiment can be a valid method of obtaining a relief system size However, it is imperative that the small-scale experiment is conducted in such a way that scale-up is valid. The following listI16,17] of requirements for valid scale-up should be achieved as far. as possible. If any of the list are not satisfied, the designer needs to,carefully consider the effects and be convinced that the result will be to overestimate the required relief size. t 

If all the above are satisfied, then scale-up can be done on the basis of relief area to 

If some of the above conditions of applicability are not entirely satisfied (but scale-up is still believed to be safe), it is better to scale-up on the basis of relief area to mass of reactants  

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