A little background on the Million Dollar Baby. The truck is a 1992 Kenworth B Model W-900. It has a 425 h.p. 3406 B-Model Caterpillar engine, a 15 speed deep-reduction transmission with 3:55 Eaton 402 rear ends. It has the V.I.T. Kenworth interior and the Aerodyne I style 60" walk in sleeper with double bunks. It had a 270 inch wheelbase before I cut it down, and I haven't measured it since. It has approximately 1.5 million miles on it, and I drove it about 900,000 of those miles. I had an inframe rebuild done to the engine in 1999, and it's been running untouched ever since. (Same turbocharger since then too! Today's lesson is change the oil regularly!) It's on the third clutch since new, and I put an Eaton reconditioned transmission in it at about 1.3 million miles. (It didn't need a clutch then, but I put one in it anyway since the transmission was out already.)
Monday, August 22, 2011
A 225 ton anode makes it to the mine.
This 225 ton anode came all the way from Salt Lake City to the Freeport McMoran copper mine in Miami, Arizona. I'm not exactly sure what the anode does in the copper smelting process, but it must be important to bring it in.
An anode is an electrode through which electric current flows into a polarized electrical device. Mnemonic: ACID (Anode Current Into Device). (The direction of electric current is, by convention, opposite to the direction of electron flow)
A widespread misconception is that anode polarity is always positive (+). This is often incorrectly inferred from the correct fact that in all electrochemical devices negatively charged anions move towards the anode (hence their name) and/or positively charged cations move away from it. In fact anode polarity depends on the device type, and sometimes even in which mode it operates, as per the above electric current direction-based universal definition. Consequently, as can be seen from the following examples, in a device which consumes power the anode is positive, and in a device which provides power the anode is negative: In a discharging battery or galvanic cell (diagram at right) the anode is the negative terminal since that is where the current flows into the device (see drawing). This inward current is carried externally by electrons moving outwards, negative charge moving one way constituting positive current flowing the other way. It is continued internally by positive ions flowing into the electrolyte from the anode, i.e., away (surprisingly) from the more negative electrode and towards the more positive one (chemical energy is responsible for this "uphill" motion). In a recharging battery, or an electrolytic cell, the anode is the positive terminal, which receives current from an external generator. The current through a recharging battery is opposite to the direction of current during discharge; In other words, the electrode which was the cathode during battery discharge becomes the anode while the battery is recharging. In a diode, it is the positive terminal at the tail of the arrow symbol, where current flows into the device. Note electrode naming for diodes is always based on the direction of the forward current (that of the arrow, in which the current flows "most easily"), even for types such as zener diodes or solar cells where the current of interest is the reverse current. In a cathode ray tube, it is the positive terminal where electrons flow out of the device, i.e., where positive electric current flows in.
An electrode through which current flows the other way (out of the device) is termed a cathode.
This 225 ton anode came all the way from Salt Lake City to the Freeport McMoran copper mine in Miami, Arizona. I'm not exactly sure what the anode does in the copper smelting process, but it must be important to bring it in.
in case you were wondering:
ReplyDeleteAn anode is an electrode through which electric current flows into a polarized electrical device. Mnemonic: ACID (Anode Current Into Device). (The direction of electric current is, by convention, opposite to the direction of electron flow)
A widespread misconception is that anode polarity is always positive (+). This is often incorrectly inferred from the correct fact that in all electrochemical devices negatively charged anions move towards the anode (hence their name) and/or positively charged cations move away from it. In fact anode polarity depends on the device type, and sometimes even in which mode it operates, as per the above electric current direction-based universal definition. Consequently, as can be seen from the following examples, in a device which consumes power the anode is positive, and in a device which provides power the anode is negative:
In a discharging battery or galvanic cell (diagram at right) the anode is the negative terminal since that is where the current flows into the device (see drawing). This inward current is carried externally by electrons moving outwards, negative charge moving one way constituting positive current flowing the other way. It is continued internally by positive ions flowing into the electrolyte from the anode, i.e., away (surprisingly) from the more negative electrode and towards the more positive one (chemical energy is responsible for this "uphill" motion).
In a recharging battery, or an electrolytic cell, the anode is the positive terminal, which receives current from an external generator. The current through a recharging battery is opposite to the direction of current during discharge; In other words, the electrode which was the cathode during battery discharge becomes the anode while the battery is recharging.
In a diode, it is the positive terminal at the tail of the arrow symbol, where current flows into the device. Note electrode naming for diodes is always based on the direction of the forward current (that of the arrow, in which the current flows "most easily"), even for types such as zener diodes or solar cells where the current of interest is the reverse current.
In a cathode ray tube, it is the positive terminal where electrons flow out of the device, i.e., where positive electric current flows in.
An electrode through which current flows the other way (out of the device) is termed a cathode.