Page 340 - Ship Construction.DJ Eyres 6Ed

Ch28-H8070.fm Page 329 Wednesday, October 18, 2006 7:02 AM
Ventilation, Refrigeration, and Insulation 329

FROZEN CARGOั้น---
CHILLED MEAT
Square pillar
งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี

--- ใช้เพื่อการศึกษาเท่าน

Square pillar

ึ

FROZEN CARGO
Square pillar

Line of insulation

Duct
keel

FIGURE 28.2 Midship section of refrigerated cargo ship

compartments if the desired temperatures are to be maintained eco-
nomically.
Cork, glass fibre, and various foam plastics in sheet or granulated form
may be used for insulating purposes, also air spaces which are less efficient.
Glass fibre is often used in modern ships as it has a number of advantages
over the other materials; for example, it is extremely light, vermin-proof, and
fire-resistant, and it will not absorb moisture. On the decks and particularly
at the tank top the insulation must often be load-bearing material, and cork