Ashley Coutts
Civil/Environmental
- Jul 11, 2018
- 1
To whoever can assist, please.
We are investing the most viable methods for treating internal seawater system on different vessel types for biosecurity purposes. While we are well aware that there are Marine Growth Prevention Systems which are designed to maintain biofouling within sea chests and internal seawater systems, we are focussing on ways of treating sea chests and internal seawater systems when such systems are either under-performing or are absent, and therefore require treatment in order to meet emerging marine biosecurity requirements such as in California, New Zealand and Australia.
In order to evaluate which treatments might be economically and realistically feasible, we need to be able to determine the following:
1). The diversity, configurations and physical size of key internal seawater system components and how they differ within and across vessel classes, and
2). Identify components of these systems potentially susceptible to prospective treatment agents.
While we appreciate that the size and configuration of sea chests and associated internal piping would largely be dependent upon the volume of seawater required per minute or hour, and they would vary considerably between systems and across different vessel types, we are wanting to know if there are any strict formulas, calculations, rules etc naval architects use to determine the size, configurations, of sea chests and internal seawater systems, etc for different systems on different vessel types? We understand that the classification societies must set guidance or even strict rules, but we have yet to locate any standards, rules, calculations, formulas, etc.
Any words of wisdom/assistance would be most helpful.
We are investing the most viable methods for treating internal seawater system on different vessel types for biosecurity purposes. While we are well aware that there are Marine Growth Prevention Systems which are designed to maintain biofouling within sea chests and internal seawater systems, we are focussing on ways of treating sea chests and internal seawater systems when such systems are either under-performing or are absent, and therefore require treatment in order to meet emerging marine biosecurity requirements such as in California, New Zealand and Australia.
In order to evaluate which treatments might be economically and realistically feasible, we need to be able to determine the following:
1). The diversity, configurations and physical size of key internal seawater system components and how they differ within and across vessel classes, and
2). Identify components of these systems potentially susceptible to prospective treatment agents.
While we appreciate that the size and configuration of sea chests and associated internal piping would largely be dependent upon the volume of seawater required per minute or hour, and they would vary considerably between systems and across different vessel types, we are wanting to know if there are any strict formulas, calculations, rules etc naval architects use to determine the size, configurations, of sea chests and internal seawater systems, etc for different systems on different vessel types? We understand that the classification societies must set guidance or even strict rules, but we have yet to locate any standards, rules, calculations, formulas, etc.
Any words of wisdom/assistance would be most helpful.
