Looking to play around automating my hot tub chemicals. Does anyone know of good, cost effective methods to sense pH, Free Chlorine, and Total Alkalinity that would give a 4-20 mA Output?
Thanks,
Chad
I find ourselves in situations that often require that we put up a shell that keeps out the rain and wind. However, cost is always a factor and I am always looking at ways to do this more economically.
I know that twinwall polycarbonate sheets allow sunlight to come through, and if there was...
I have a facility that appears to have damage that could be from a lightning strike. I have data from the local weather office that shows 11 lightning strikes in the area giving both latitude and longitude. None of them are exactly on my location, but a couple of them are quite close. I would...
We are always reviewing of our piping fabrication and looking for ways to speed it up, and bolt-up for hydrotest always just naws at me. For how long hydrotests have been done, there MUST be a quicker way to bolt-up blind flanges, or maybe find a better way than blind flanges altogether...
Hi All,
I'm looking at ways to increase the speed of construction of pipe modules, and one area of improvement that has been identified is the process of installing pipe spools within the rack. I was hoping I could put it out there to see if anyone has some suggestions.
We would prefer to...
Hi All,
I have heard and seen pictures of aromatic polyurethane coatings being applied overtop of an aggregate base in tanker truck offloading areas to contain spills, and it got me wondering whether I could do something similar for the base of a temporary shop floor so I don't need a concrete...
I have inherited a site that has a gravel road and pad built over a layer of loam top soil. The area is prone to being muddy after very short rainfalls, and I have been looking at options to improve this. This problem is compounded by the previous thought that adding more gravel would fix the...
I have a large clay drainage near an industrial gravel pad that runs several hundred feet that I was considering installing a large French drain with trees (I'll describe below). It can be deep at certain points to maintain grade and has steep side slope which has caused concern about general...
Hi All,
Please bear with me as I'm a mechanical guy. I have hired a consulting engineering company to put in a concrete slab where structural integrity is very important. We will likely be bringing in plenty of clay to build up the area where the slab is being installed (maybe 3 to 6 feet)...
I have trucks that unload fluid into our system at some pressure and I would like to take samples throughout the unload process to characterize that load. Trucks often unload one after another without an operator present to change sample bottles. The fluid varies in type, and sometimes there...
Has anyone ever tried or heard of putting in a clear transparent material on one side of a tank (say 750 bbl, 1000 bbl API 12F Tanks) from top to bottom that can be used to see what's inside the tank? Say a strip of clear material 12" wide from bottom to top. Process fluid would be produced...
Just finished a facility where I used quite a bit of threaded stainless steel mostly in the 3 and 4" NPT size. For the most part it is working quite well. It is low pressure (10 psig static, more if transients considered), produced water (salt water) application.
In a few spots there are...
I am trying to develop a field sampling procedure that can be used to determine a representative oil and solid cut in a truck bringinging in produced water or flowback. It appears that most of the literature out there is to determine BS&W in oil in contrast to this where this is mostly salt...
Hi There,
I have inherited the engineering on an upstream oil skimming tank site that utilizes four tanks in series, each tank having a pipe that forms an inverted u within the tank such that the suction side of the inverted u pulls from the bottom of the tank at around 2 feet then goes upwards...
Hi there,
I've been reviewing some integrity management programs, and I can't help but notice there is a deficiency in considering what the service life of gaskets is. Plenty of the gaskets I have seen have been in service for 20 to 40 years. We have set a zero leak goal, and therefore...
Hi All,
I am looking at having 3 low pressure natural gas wellsites being tied into a higher pressure natural gas pipeline at a compressor pod site (for those who don't know what that is: a site where a future compressor can be added). The low pressure pipelines are all plastic and have an MOP...
Hi all,
Does anyone what the Wichert-Aziz pseudocritical temperature correction factor (GPSA Figure 23-8) is based on? Is it experimental or is there a relation? I would like to build some code to automatically calculate this factor if possible. GPSA says that this figure is from Wichert, E...
