Qualitative and Quantitative Analysis in Comparing Prospective CWCs

Qualitative analysis either involves traditional deductive logic beginning with assumptions and carefully deducing an outcome from them, or, a holistic approach in which all the factors and criteria involved are laid out in advance in a hierarchy or in a network system that allows for dependencies. Quantitative analysis involves estimating Life Cycle Costs to arrive at an economic equitable assessment of competing design alternatives considering total expenditures over its-entire economic life.

The paper applies Qualitative and Quantitative concepts to choose prospective designs of two configurations of the CWC i.e, the Vertical and the Horizontal orientations. Solutions are proposed to evaluate overall performance of the CWC. 

Qualitative analysis either involves traditional deductive logic beginning with assumptions and carefully deducing an outcome from them, or, a holistic approach in which all the factors and criteria involved are laid out in advance in a hierarchy or in a network system that allows for dependencies. Quantitative analysis involves estimating Life Cycle Costs to arrive at an economic equitable assessment of competing design alternatives considering total expenditures over its-entire economic life.

The paper applies Qualitative and Quantitative concepts to choose prospective designs of two configurations of the CWC i.e, the Vertical and the Horizontal orientations. Solutions are proposed to evaluate overall performance of the CWC.

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However, due to serious environmental effects, these paints have been banned since 2008 and have been replaced by copper based antifouling paints with some success.  It was observed that the extensive use of copper based antifouling paints has led to the accumulation of copper and its compounds in the marine environment particularly in the vicinity of ports and harbors and is beginning to pose a serious environmental problem. Foul release coatings are biocide-free –works on a foul release basis by providing a very smooth, low-friction surface which reduce the strength of adhesion of fouling. However, they are applicable only to high- speed, high-activity vessels, in addition to other issues such as high cost, difficult, application procedure and are easily prone to mechanical damage. Biocides from natural products appear to be the only viable alternative in the foreseeable future to protect ship hulls from fouling. This paper reviews the possible natural products that have the potential to be incorporated in to commercial antifouling paints and explores their range of activity.