GRP/FRP pipelines. Piping flexibility calculations
FRP (Fiber Reinforced Plastics pipes) or GRP (Glass Reinforced Plastics pipes) , both terms are interchangeable, are composite material pipes consisting of a polymer matrix reinforced with glass fibers. GRP pipes have very high corrosion resistance ability and are used widely for low-temperature corrosion-resistant applications, such as in corrosive water services. Currently, the GRP pipes are slowly […]
Corrosion under insulation (CUI). Damage mechanism description
Tags: Pressure Vessels, Piping, Integrity Engineering Corrosion under insulation (CUI) is defined as a type of corrosion (general corrosion or localised corrosion) caused by trapped water on surfaces covered with insulation. Another type of corrosion similar to CUI is corrosion under fireproofing (CUF), both classified within the same damage mechanism. Content When insulation is required? […]
Thermal stratification in cryogenic LNG pipelines
Thermal stratification in cryogenic LNG lines, also known as the banana effect, occurs when there is a significant thermal difference between the bottom and top of a pipe. In the day-to-day running of a terminal, the temperature in the lines is relatively uniform, so the associated thermal stresses will not compromise the structural integrity of […]
Engineering tips: Design of piping systems with restriction orifices
The restriction orifices are used in many applications where it is necessary to reduce the flow and pressure of fluids in pipes. These can be used for gases, vapors and corrosive fluids. Many of its applications are related to plant safety and equipment protection: Depressurization system in gas treatment plants, where it is necessary and […]
STRESS ANALYSIS OF PIPES WITH RATIO D / t> 100
On certain occasions, during the development of projects where large diameter pipes are involved, scenarios arise in which the diameter (D) / thickness (t) ratio is higher than 100. It is common to find this situation in systems with large diameter pipes that work at low pressure, in which the calculated thickness due to the […]
