Is the statement that a Battery Energy Storage System that utilizes LiFePO4 type batteries (manufactured by SunWoda) immune from a fire potential defendable based on actual performance data? Most opponents want to point to the numerous cases of Thermal Runaway type fires but most of these seem...
Daughter had an inlet valve freeze on her sprinkler system backflow preventer. It is a large 1" brass Febco 765 PVB type with an inlet and outlet valve. Problem was even if she opened the vents ports on the PVB it did not drain the water off the top of the inlet valve that was installed in the...
Is anyone familiar with the interpretations of the PART 3285—MODEL MANUFACTURED HOME INSTALLATION STANDARDS (with respect to use of 1" treated (yellow pine) wood for the pier caps. I have a full slab under the home and two stacked block piers. But instead of 2" hardwood caps or 1" painted...
In a natural gas city gas regulator station with two parallel regulators, one primary and one secondary both with backup monitor regulators for overpressure protection, should a bypass be allowed? The station is taking gas from an 800 psig MAOP pipeline, and after regulation down to 60 psig and...
I am noticing that there are many Amine Contactors that are being dual rated for 1440 psi @ 120F and 1420 psi @ 150F on their nameplates. The UA-1s only reference the lower temperature and higher rating. Yet the amine reaction in the vessel is being designed for a "temperature bulb" in the...
When doing the dead load and live load calculations on a pipeline road crossing a client wants to go 15 deep and bore a 12" nominal pipe under a Txdot FM road. An old 2001 guideline I have from ASCE/FEMA study has a table that shows there is no live load influence on AASHTO H-20 truck at below 8...
I have been reviewing API RP 521 with respect to steam generation on depressurization in a hot crude oil separation system operating at above the normal boiling point of water. I am reviewing this because of a concern by one of my client’s safety engineers in which he references Section 5.9.1...
I have some questions that maybe some of the more experienced hydraulic engineers can help me with. I have a farm approximately 2 miles downstream of a LOMR which was just approved by FEMA which has resulted in a increase in the floodway BFE by a foot. In reviewing the modeling done on the...
I have some questions that maybe some of the more experienced hydraulic engineers can help me with. I have a farm approximately 2 miles downstream of a LOMR which was just approved by FEMA which has resulted in a increase in the floodway BFE by a foot. In reviewing the modeling done on the...
I have a specifcation that calls for 3/4" and 7/8" round bar to be made out of ASTM A-131 Grade EH36 material. Key consideration is being able to meet the CVN requirement of ~25 ft-lbs at -40C. We will be using this material for ROV handles in offshore Deepwater applications. Our materials...
I am trying to get erected a 30 x 40 ft Metal Building in an area 75 miles from the Gulf Coast for my personal use for a garage with a FEMA 320 safe room. I have specified a 120 MPH metal building with 2-3x3' fixed louvers over 6 feet up, 2-10 foot ridge vents, 2-120 mph wind certified overhead...
