The cost of desalinating seawater using conventional technology in the Persian Gulf is high (around 0.1£ per cubic meter) and requires extensive amounts of oil. Some time ago scientists suggested that it could well prove both practically feasible and less expensive to tow icebergs from the Antarctic, a distance of about 9600 km. Although some of the ice would undoubtedly melt in transit, it was thought that a significant proportion of the iceberg would remain intact upon arrival in the Gulf. Bear in mind that since water expands upon freezing, 1 cubic meter of ice produces only 0.85 cubic meter of water A study was carried out to evaluate the practical problems associated with such a proposal and to quantify the factors that were likely to influence the economics of such a venture. One factor was the difference in rental costs and capacities of towing vessels (summarized in Table 1). Note that each vessel has a maximum iceberg it can tow (measured in cubic meters). It was found that the melting rate of the iceberg depends on both the towing speed and the distance from the South Pole (see Table 2). The data in this table represents the rate at which a hypothetical spherical iceberg shrinks in radius over a day at the given distance from the Pole and at the given towing speed. Finally, fuel cost was found to depend on the towing speed and the (current) size of the iceberg (see Table 3). Determine whether it is economically feasible to produce water from icebergs in the Persian Gulf, and if it is,

Determine the best means to do so. the questions were given in this case are :

1-what do we know ?

2-what can we assume?

3-what would results look like ?

4-what information can be brought to bear?

5-what can we ask the client?

6-problem statement: in what ways could ?

7-decisions a number of draft commercial?

8-ways to simplify?

9-modules ?