Design Assessment For Wintertrack Tower
Introduction In this case, the high-tension wires will be supported by slender steel conical towers. The towers are loaded by various horizontal and vertical load components.The following load mechanism can be distinguished: The required access door to the tower inside located at the foot of the tower (the highest loaded cross-section) is an additional complication […]
Cooling Water System In An Existing Power Plant
Introduction Our client is reviewing/upgrading the primary cooling water system in an existing power plant. The primary cooling water flow can be operated as an open loop or as a closed loop system. In the “closed” loop configuration, the cooling water pumps extract water from the intake basin under the cooling tower and forward the […]
Vibration Enhancement In A Oil Wash Line
Introduction In a wash oil line, undesirable vibrations are observed in the downstream line of an angle control valve.Upstream of the control valve, the wash oil has a pressure of 150 bar and a temperature of 400C. Downstream of the valve the pressure dropped to 9 bar, and the temperature remained at400C. The vapor/gas content […]
Preventive Analysis of a Fiberglass Ballast System on a Vessel
Introduction A surge analysis and a static stress analysis of an FRP ballast water system were required to avoid the repetition of a previous incident. The ballast system was designed to pump water in the different compartments to balance the oil storage in the other compartments. Analysis Surge Analysis One of the main objectives of […]
GRP Sea Water System
Introduction The seawater system is a class A system according to Service Limit State (SLS). The system is made from reinforced fiberglass piping, containing a pump manifold with three pumps, each with a rated capacity of 5,500 m3/h. The manifold is connected to two vaporizers via two 1200 mm diameter buried pipes. The design pressure […]
A Deluge Fire Fighting System
Introduction A deluge fire fighting system is installed on three monopiles in the North Sea. For these systems, a water hammer calculation was performed.The system consisted of a two-ring fire water system with four sprinkler lines connected to the second, lowest, ring. For future scenarios, four additional sprinkler lines might be connected to the first […]
GRP Fire Fighting System
Introduction In the context of a gas facility, the addition of new units necessitated the enhancement of the existing firewater system. This system was designed to ensure a reliable source of firewater storage, make-up, and distribution capacity to effectively address the plant’s fire safety requirements. Analysis The objectives of the surge analyses were as follows: […]
Vibration Reduction in a Process Piping Project
Introduction In this case study, the focal point was addressing the high vibration levels observed in the process piping extending from a heat exchanger to a separator. Concerns were raised regarding the potential for dynamic stress to induce fatigue failures in the equipment nozzles over time. The flow within the piping consisted of a two-phase […]
A 16” Line on a Chemical Plant
Introduction In this case study, we addressed a notable vibration issue observed in the main 16” line at a chemical plant, which was suspected to stem from slug flow. Specifically, the concern centered around the 16” pipe connection linking a low-temperature separator and a heat exchanger. Dynaflow Research Group was tasked with investigating this vibration […]
Cooling Water Piping on a Dredger
Introduction This case involved fulfilling a client’s request to perform a surge analysis and static and dynamic stress analysis about the cooling water lines and associated supporting steel on a dredger. Analysis The objective of the surge analysis was to define the cooling water flow rates during a steady state and the unbalanced loads during […]
