Winter

 Well, the cold is back. 

 It's presently a relatively balmy 10 degrees F. Gonna be 1 tonight, but it's blowing 40kts, gusting close to 60.   Frostbite risk tonight for sure. 

   Unfortunately we also have a complex discharge tonight that will require me to spend a lot of time outside on deck.  We loaded three different feedstocks to make a Very Low Sulfur heavy Fuel Oil  (VLSFO, a clean burning residual (#6) fuel oil)  destined for a powerplant in the Bronx tonight. The first feedstock was ultra dense and ultra viscous, and the terminal we loaded from, in their great wisdom, kept the oil in a tank with a tiny pipeline that is uninsulated in parts... this is an oil (HAFO, Highly Aromatic Fuel Oil, basically an oil that has a nasty habit of shedding nasty (mostly nonflammable under normal conditions) molecules into gas form. Stinky stuff. Smells like sulfur and really cheap shitty perfume... But energy dense like you wouldn't believe.  So, we laid down a thin layer of that stuff in our tanks, which should hsve tanken an hour but took 24,  and by the time it got to us it had partially resolidified into a molasses-in-the-refrigerator texture... then we used two types of 'cutter stock,' oils similar to clean diesel, thst will dilute and thin the heavy crap... but the terminal's pumps are ridiculously slow. 40 hours to load what would take just 4 hours elsewhere. 

 I bitch but I have a point... now, this stuff is destined for a standby power plant's fuel tank. It will get pumped into that one big, empty tank and when we're done the oil will be heated and recirculated in the tank, blending it nicely.

 The idea is to blend it in my tanks first, so the heavy stuff doesn't turn solid in my tanks and become unpumpable, which heavy oil does at low temps.  The HQ doesn't have cargo heaters, as we don't do long voyages, but in winter, oil needs to go in hot and not be in our tanks longer than 3 days. 

  Well, small, slow pumps, cold uninsulated pipelines, the oil's only a little above 90 degrees in the middle of my heavy oil tanks, so it's substantially cooler at the bottom.  Luckily we should be starting to pump it off less than 10 hours from when we finished loading.

    My point here is that there will be oil of a marshmallow-like consistancy to deal with in the bottom of my tanks. Ever try sucking a really thick chocolate shake through a soda straw?  I have to be on the scene to make sure I don't bake the pump impellers, overload the cargo engines and blow out the stuffing boxes (packing glands) of the pump shafts... and it's the damn stuffing boxes that are the ones to watch. 

      Pulling massive vacuum suction to get viscous oil to flow, means we'll be at a huge vacuum on the suction side of the pump, but on the discharge side we'll be pushing 100psi of force to get the oil into my discharge piping and to the csrgo hoses going ashore.  All that force will be exerted on the seals of the pump shafts, and viscous oil at 100psi puts ENORMOUS force on the seals, which absolutely will leak by slightly so as not to blow out... so there will be solid oil oozing out over the pump well sides and making an enormous mess that is almost impossible to clean up between November and April... so I want zero mess, obviously, and I don't want to barbecue all my pump equipment in the process, so I'll be there watching, putting my hands on things (gauges freeze sometimes, so I can't trust 'em) and generally trying to be a good do-bee. 

 Which would be fine except for it being 3 degrees and blowing a gale. 

  Still, every winter has to have a 'coldest night of the year' in it.  So not a big deal, just has to be dealt with.