DA.L.C.F. 6LAC-jCAf%N.
RGH/JP/l 21st June, 1979
VISIT TO'CANADA AND THE U.S.A.
4TH -15TH JUNE, 1979
The following were the main points discussed at the two
centres. Some of these items will be written up in more,detail
later.
1. MODELS TO PREDICT DELIVERIES 'FROM VENTILATION, FILTRATION', E=.
It wa.-. agreed that advanced companies should develop their
own models in this area incorporating more local detail than
would be possible at Southampton. ITL have a system designed
but not yet programmed, while B&W have done about 70% of the
programming and testing.
At the same time, GR&DC has several contributions to make:
- providing some of the basic experimental data;
- suggesting the form of prediction equations from
studies on a wider range of samples than is available
in any one company;
- facilitating the flow of information between
companies with experience in this area.
2. MODELS OF THE EFF ECTS OF EXPANDED TOBACCO
This topic was raised spontaneously by B&W as an area for
investigation by GR&DC and some initial steps were agreed. This
was before I knew of our more ambitious programme in expanded
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tobaccos, but all that was planned fits comfortably within the
framework of the new programme.
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In Canada, I raised the topic by asking for views on what
types of information they would expect to see in our proposed
handbook on the uses of expanded tobacco in cigarette design.
They had no immediate answers and it was agreed that they would
think about the question and that we would contact them again
later.
3. BLENDING MODELS
Most of the time in Canada was spent in setting up a
blend/grade matching model on a local bureau computer using
ITL's own O/WP data on their own grades. There was considerable
enthusiasm among those directly involved for trying this approach.
Bob Gibb is quite naturally reserving judgement until its
practical usefulness in the Canadian context has been demonstrated.
On the other hand, I pointed out that it would need approximately
half a man year of effort on their part to find out the potential
usefulness. This seems to have been accepted, though perhaps
reluctantly.
The question of funding was mentioned only obliquely, but
it seems a reasonable compromise that we in Southampton should
work on a Canadian problem which has research value to the Group,
as an example of more general principles, provided ITL put in
a commensurate amount of effort on those aspects which are of use
only to them. I have spoken to Graeme Boswall since my return
and it appears that they are happy to proceed along these lines.
The use of blending models was also discussed at BAW though
in less detail. In B&W support for blend modelling comes mainly
from the Operational Research and Leaf Departments, the R&D people
being less enthusiastic. Their two arguments seem to be
(a) leaf blending is a relatively unimportant factor, especially
in low delivery cigarettes; (b) to get into this area would CX1
involve a disproportionate amount of effort by B&W's R&D department.
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To date we have not reached any agreement on this point,
except that I would prepare a written proposal for a joint project
between B&W and Southampton, to be discussed during Dr. Blackman's
coming visit to B&W.
To summarise, therefore, we seem to have reached agreement
on most points with the two companies: there is just the one
question outstanding - namely whether B&W want us to do any work
with them on blending.
41'
DISTRIBUTION:
Dr. L. C. F. Blackman
Dr. C. I. Ayres
Dr. T. Hirj /Dr. G.A. Few
Dr. R. G. Hook
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