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The US Chemical Safety Board has approved and released the final report on the Macondo /Deepwater Horizon blowout and explosion of 4/20/10 in the Gulf of Mexico. The report is in two volumes and does include an animation of the sequence of events. I have found the CSB animations to be particularly helpful in understanding the key features revealed by their investigations.
The CSB recently released their final report on the ammonium nitrate fire and explosion in West, Texas on 4/17/13. A few months after the release of the final report the ATF announced a reward of up to $50,000 for information leading to the arrest of person or persons responsible for the industrial fire and explosion that killed 15 people.
If the forensic aspects of industrial accidents is of interest to you, I’d recommend having a look at the CSB website. Knowledge of various initiation and propagation modes in past industrial accidents is useful for those of us trying to prevent initiating events on our own sites.
An article by Lucy Nicholson/Reuters writing for News Week reports that the North Carolina Senate will introduce a bill called “Energy Modernization Act. SENATE DRS25123-RIxz (01/22)”. A part of this bill will enact the extraordinary authority to make disclosure of fracking fluid information without permission a felony- i.e., a criminal act. Normally, cases of disclosure of commercial confidential information is a civil matter leading to injunction and/or monetary awards.
A quick look at bill shows the following language:
SECTION 7.(a) Article 27 of Chapter 113 of the General Statutes is amended by 26 adding a new section to read: 27
Sponsors: Senators Rucho, Newton, and Brock (Primary Sponsors).
“§ 113-391A. Trade secret and confidential information determination; protection; 28 retention; disclosure to emergency personnel.
… [refer to page 11, line 39]
(d) Penalties for Unlawful Disclosure. – Except as provided in subsection (c) of this section or as otherwise provided by law, any person who has access to confidential information pursuant to this section and who discloses it knowing it to be confidential information to any person not authorized to receive it shall be guilty of a Class I felony, and if knowingly or negligently disclosed to any person not authorized, shall be subject to civil action for damages and injunction by the owner of the confidential information, including, without limitation, actions under Article 24 of Chapter 66 of the General Statutes. [italics by Gaussling]
There are numerous exceptions for government officials who have a need to know this information in the course of their responsibilities as well as emergency medical personnel who demonstrate a need to know.
One has to ask why the Senators wrote law to render disclosure of commercial information relating to fracking fluids a Class I felony as well as an act being subject to civil litigation. Do they believe this is in the public interest? This act will make it difficult for people to monitor ground water for tell-tale components of drilling or fracking fluids because the composition of the injected fluid is confidential. If you are not allowed to identify the input fluids, how can you claim that contaminants found are related to fracking?
Does this law also mean that being in possession of a material safety data sheet (MSDS), a shipping document required by law, could constitute a violation? Oh, even better, will the MSDS contain enough information to be useful to workers, emergency responders, or fire inspectors on the scene and without delay? Or will the material be listed as a mixture of Stuff A, Stuff B, and Stuff C? And by the way, don’t get this shit in your eyes.
So, Senators Rucho, Newton, and Brock. What about the Class I felony G.S. 95-197? Doesn’t that contradict some language in your law?
I G.S. 95-197 Withholding hazardous substance trade secret information.
It seems like the sponsors are helping someone render future litigation and recovery of damages much more expensive and complex. Does this help your constituents? I mean, you know, the ones who are not corporate entities.
A FLIR ONE ® infrared imaging attachment for my Android 6S cell phone arrived at my door the other day. The price was initially a bit high, $350, but had recently dropped to a more attractive price of $249, so I pulled the trigger. The online transaction on the FLIR website was seamless and the delivery time was less than one week. At the time the FLIR ONE® was offered on Amazon for the same price.
The unit has two imaging sensors arranged horizontally side-by-side and one centimeter apart: One optical sensor and one Lepton IR thermal imager detecting in the 8-14 micron wavelength range. According to Optics.org, the Lepton is an “uncooled long-wave infrared (LWIR) microbolometer focal plane array”. The FLIR has its own battery which must be charged separately. It will not energize from your phone’s battery.
The unit arrives nearly ready for plug and play. Before it can be operated the user must download an app from FLIR. This process went smoothly and in a short time I had the unit operating. The compact FLIR unit connects to the Android via the micro USB connector on the phone.
About the imaging. The FLIR ONE superimposes the IR image atop an optical image that consists primarily of edge lines defined through high contrast. This is a useful feature because it improves the image sharpness and helps set the context of the IR image. In a darkened space the optical image is lost and only the IR image will be visible (second image). The IR image itself is relatively low resolution owing to the limited number of pixels from the IR detector. At close range a significant parallax effect occurs, appearing as shifted overlap of the optical and IR images.
The image above is an example of a false color image captured from the FLIR ONE. The shot of this north-facing door was taken during late afternoon on a sunny day in Colorado. The internal air temperature was ~68 °F and the outside air temp was ~35 °F in the shade. As is customary, the coolest temperatures are indicated in blue and warmer temperatures are indicated by a gradient from red to yellow to white. The IR sensor seems to saturate fairly easily, but the automatic exposure control will get a handle on the image, though not instantaneously. I have found that the best images are had by limiting the frame to avoid including overly IR-bright features. This allows the exposure control to bring out thermal subtleties in the image much as any auto exposure feature would in the optical range.
The second image shows a basement gas hot water heater and the hot water output line directed upwards to the floor joists. The hot water lines are insulated with closed cell polymer foam insulation from the local hardware store. The water heater has nothing more than the factory equipped insulation.
The FLIR ONE indicates infrared temperatures by way of false color images and spot temperature readings. But temperature readings from IR thermometry are not the whole story when it comes to understanding fugitive heat losses, radiative or otherwise.
An IR image shows surface temperatures based on assumptions on average emissivity and scaling through the Stefan-Boltzmann law. The amount of radiant energy emitted by a black body is defined by the Stefan-Boltzmann law. A plot is shown here. Emissivity is the quotient of emitted energy from a surface divided by that emitted by a black body radiator at the same temperature. Every surface has a characteristic emissivity based on its composition. According to the linked emissivity table, polished aluminum has an emissivity of 0.095; concrete 0.95; mercury, 0.12; sanded spruce, 0.82; and white lacquer, 0.95. All these values are at 100 °C.
In the third photo, a 1 ft x 1 ft piece of aluminum foil was wrapped around a stretch of the insulated hot water feed line above the heater, as shown in the photo. The foil is in thermal contact with the foam insulation on the 3/4″ copper pipe. Hot water was run for a few minutes to draw heated water into the plumbing. Caution should be taken in that IR radiation does reflect off of surfaces which may lead to inaccurate conclusions about heat flow in the system in question. Above, the aluminum foil is reflecting some IR from another source. Up close and from another angle the foil appears much cooler than it is.
Plainly the emissivity of the highly heat conductive aluminum is different from the foam insulated pipe. The foil is in thermal contact with the foam and should be near the temperature of the foam surface, but the false color image suggests that the foil temperature is lower in temperature. Because of its much lower emissivity (ca. 10 % of foam) the foil only appears to be cooler. The foil is less radiant than the foam which has an emissivity of ~0.90.
Polished aluminum has high thermal conductivity but low IR emissivity. Foam, which has high IR emissivity (see images), is known for it’s insulating properties. And by that we mean, foam is a poor conductor of heat. What aluminum lacks in emissivity, it more than makes up for in conductivity. And while foam lacks in conductivity, it appears to be an efficient emitter of IR.
It is useful to mention the meaning of “insulation“. A material that conducts thermal power poorly can be said to have insulating properties. Thermal power (dq/dt) is the flow rate of thermal energy (q) per second. Thermal power is the rate of flow in Joules per second. For reference, one Joule per second is one Watt. The valuable attribute of a thermal insulator is that it can resist the quantity of power (Watts) flowing through a unit area such as a square meter. The amount of thermal power moving across a unit area, like a surface, is called heat flux and is in units of W/m^2. It is common to express thermal resistance through a material by the R-value. An R-value is the ratio of the temperature drop (ΔT) across the insulating material to the heat flux through it, Q: R = ΔT/Q. So, as the heat flux gets smaller for a given ΔT, R grows larger in magnitude. In practical terms, a large R-value is desirable for insulation.
Looking at the radiant stretch of emissive insulated pipe rising from the water heater, we might initially guess that the IR image shows the whole thermal picture. But really, this guess is muddied by details. A warm pipe will be radiating energy as well as losing heat by conduction to whatever it is in contact with and by air convection.
IR radiation thermometry is useful when measuring a surface temperature is not practical. Accuracy, however, will depend on the emissivity of the surfaces of interest. The FLIR ONE is an economical imaging device for capturing IR images of large areas. The spot temperature feature is useful for recording the temperature of desired objects. Image files are easily downloaded from the phone and manipulated as jpeg files. Users will find many good applications for this affordable and easy to use IR imaging system.
Easy and cheap is great, but it is advisable for those wanting to do commercial work with IR thermography to take credible coursework and obtain some credentials. There are a few subtleties to thermography and it is best to be a little overqualified than not. Thermography courses can be found on the internet.
Two trips in the last month. First to New Orleans to attend the specialty chemical trade show called Informex. We didn’t have a booth in the expo this year. It hadn’t served a useful purpose for many years, truth be told. I stood in for a sales guy who couldn’t attend. Nice to be back in the field.
Informex is an odd menagerie of buying, selling, drinking, feasting and spy craft. For the first time I was invited to a gathering with a balcony above Bourbon Street. The hosts supplied ample liquor and Mardi Gras beads so we tossed them from the Royal Sonesta balcony with careless abandon to disinterested stragglers on the street below. No flashing or outrageous behavior to be seen, regrettably. The Sonesta is a 4 star hotel they say. What 4 stars mean on a zero star place like Bourbon Street is beyond me.
The Informex experience varies depending on whether you are a buyer or a seller and if you make a good buy or sale. If you are a buyer, there are lots of free dinners at Antoine’s and the like. If you are a seller, you buy lots of expensive dinners.
There was a lot less trade show junk as in years past. Vendors would give away logo festooned trinkets to ingratiate themselves to passersby (or more realistically, their children). A waste of money usually.
I will say that it is possible to consummate deals, agreements, or understanding in a solid face-to-face sit-down with another party. Far faster information exchange and superior to email or video conferencing. Often you can talk to a decision maker in the form of a CEO or sales manager and shake loose a logjam that has been holding up progress.
The other trip was to Long Island for a campus visit. We stayed in a 3.5 star hotel in a 1 star location. The Long Island Railroad (LIRR) was indispensable for getting into Manhattan. The taxi’s in Nassau county apparently don’t have meters- ask about the fare first. The high point was taking in a Broadway show, “If/Then” starring Idina Menzel at the Rodgers Theatre on West 46th Street. Great show. Menzel has some pipes, that’s for sure.
A less than great show was the Empire State Building experience. The view was nice, once you get to the 86th floor. The in between was an expensive and kitschy meandering from a B-grade SkyRide to a walk through the self congratulatory “museum” on the 80th floor. I won’t discuss my raspy encounter with security while trying to sit on the floor.
During the last year I have been away from the chemistry blogosphere and immersed in reading classic literature and acting in a few plays. I won’t take up bandwidth with a lot of details, but suffice it to say that I would urge young technocrats to spend a bit of time reading some classic literature or doing some artistic activity. In my case, I have a special fondness for 19th century literature. Not a minute I’ve spent immersed in Balzac, Pushkin, Gogol, or the earlier writings of Cicero, brings even the slightest regret for time not spent with chemistry.
Of course, my threadbare-epiphany is in no way novel and barely worth mentioning. Many people spread their wings and glide over the wonderment of new lands. For me, I have simply chosen to spend the time doing so. Scientific greatness is not in the hand I was dealt. There will be no reactions or campus buildings named in my honor. This is the fate for most of us, really. Only it takes some time to come to that realization. Loosening one’s grip on ambition is not gladly done. Those of us who have gotten advanced degrees are, in a very real sense, freaks who have a fiendishly tight grasp and a capacity for extended abuse (you know it’s true!).
The reality of aging is that in the footrace of one’s career, faster, younger and hungrier runners begin to catch up and surpass you. This is actually essential for the continuation of scientific progress and the extension of this age of enlightenment. The trick lies in not allowing one’s vanity to accentuate this natural progression in some humiliating way. The merits of silence become increasingly apparent with age to those who can manage it.
This cancer business has the effect of telescoping one’s life in the sense that the end-game once obscured by the haze of time begins to take shape as would an approaching stranger in the fog. It is the fear of this approaching stranger that causes the afflicted to grasp for any and all treatments, clinical or mystical. At some point it should become clear that spending down your retirement and impoverishing your survivors is destructive and selfish. But you cannot rely on your physician to help with this. Your final act as a mature adult is to decide when to call off treatment. This is not accepting defeat. It is acknowledging biological reality.
Cancer has a large head-game aspect and one’s internal monolog must constantly chant the importance of living in the moment and keeping a cheerful attitude. Those around you will be grateful, even if they do not outright say so.
Th’ Gaussling has been dabbling in the strange land of cheminformatics lately. I’m trying to develop some productivity tools in on various platforms to make chemical information more accessible to fellow staff members.
One particularly useful tool is the InChI, or International Chemical Identifier. The InChI is a character string that is derived from a chemical structure. This string can be hashed (irreversibly) into a shorter string of alphabetic characters called the InChIKey. Using ChemSketch, one can draw a structure and generate an InChI string and an InChIKey string. What you’ve done here is to jump the gap from chemical structure to a searchable character string. These InChIKeys can be planted into documents such as Excel spreadsheets, Word files, and Access databases. A search for the InChI character string can find all of the documents in a folder containing the string or to a record in a database containing it.
Granted, this can be done in other ways. A chemical name can be searched as can a CASRN. Names are subject to syntactical variation and could complicate the search. If you have generated a new structure that is not listed in CAS and the nomenclature is complex, then an InChIKey identifier can serve as an unambiguous term for subsequent searches.
If you hate using the Java based drawing module in SciFinder, an InChI string or SMILES string can be used instead. Just open the structure drawing module and look in the upper left hand corner of the window. There will be a screwy looking button to select for pasting in an InChI or SMILES string. This will cause the Java module to draw the structure for you. It’s pretty handy.