Services Provided by Aura Engineering
Aura Engineering has experience with various types of projects. The following is a listing of completed projects:
Storage Tank Collection Systems
Truck and Rail Loading Vapor Control Systems
Truck and Rail Gas Freeing Systems
Instrument / Electrical Projects
Aura designed the above facility in Arlington,TX to off load 100 railcars of ethanol in a 24 hour period. The ethanol was pumped 1 mile to storage tanks.
Storage Tank Collection Systems
Storage tank collection systems generally have a common problem with available pressure. Many storage tanks are rated for only a few inches of water pressure, therefore the design must assure the vapors can be collected and transferred without damaging the storage tank. These type projects must determine whether the storage tank pressure is adequate to push the vapors to an abatement device, or if blowers must be added to the system to augment the available pressure. Consideration must also be given to the combustible nature of the vapor being collected, and whether the tank should be inerted as part of the project. Finally, a suitable abatement device must be selected to meet the permit requirements of the owner.
Coastal Fuels & Marketing; Miami, FL
Marine Vapor Control Systems
Marine vapor control systems are unique in the manner they are designed. Each system must meet specific safety requirements of the United States Coast Guard to prevent over/under pressuring the vessel, overfilling the vessel, and propagation of flames in the collection header. After design, each system is reviewed by a USCG accepted third party for compliance. Marine systems generally utilize blowers to move the vapors from the vessel to the abatement device, but there are some that use the allowable pressure of the vessel to push the vapors.
Process Vapor Collection
Process streams can have a wide variability, and therefore can be the most difficult to collect and abate. Generally process plants have more than one stream going to an abatement device, and depending on the nature of the process the feeds streams can vary from a constant flow to batch type flow. If this variability is not properly considered the abatement device can be undersized for typical operating conditions. Also, process streams can contain pure hydrocarbon that greatly increases the load on the abatement device as compared to saturated vapor streams.
Truck and Rail Loading Vapor Control Systems
Railcars have pressure ratings that allow collection without blower systems, but trucks must be evaluated before this can be determined. Certain types of trucks have pressures as low as 1 psig available for vapor collection. Generally all truck and rail systems can be collected without blowers, but pipe sizes must consider the correct pressure. The final abatement device generally depends on the throughput and number of compounds to be collected.
Truck and Rail Gas Freeing Systems
Before truck trailers and rail cars can be changed from one service to another, they must be cleaned of residual products. Before the actual cleaning can begin, the liquid heel remaining in the container must be removed and the vapor in the container removed. In many states, these vapors must be collected and abated rather than being emitted directly to the atmosphere. The final abatement device and the method of gas freeing can vary depending on the nature of the operation and the chemicals being cleaned.
Flare Systems
Aura
has spent several years working with and for companies that
design, build and startup combustion systems. Mr. Gary Lawrence
has designed a wide variety of flare systems, including air
assisted flares, enclosed flares, low heat content flares, and
staged flares.
Instrument / Electrical Projects
Aura has been involved with many projects that include varying amounts of instrument and electrical design. Almost every project has some degree of I/E involvement.
