Posts

Showing posts from April 8, 2012

Carbon Monoxide!?

-
Image
Weird The smoke alarm went off, not incredibly odd when I am using the fireplace, but it wasn't the smoke detector. It was the CO alarm. I was totally surprised. It had never gone off as long as I have had one, over many many years. Yep, after resetting it a few times. It was getting a reading over 200 ppm CO. When I took it downstairs I got a reading near 300 ppm. I started getting light headed at this point. After thinking maybe the furnace heat exchanger failed and puzzling around a bit I figured oout what happened. As part of the huge winter storm that recently covered almost half of the US, we lost our electricity. So, being well prepared I rolled out the generator and started doing what I normally do. The generator (although it was completely outside) was creating CO to get in the house. Using the fireplace (and possibly other leaks) the whole house created a vacuum around the seal of the basement garage door. After the CO got into the house the forced air heating eff...
Post a Comment
Read more
-
Image
It is good to be back home in Brazil after spending time in Paraguay. The traffic jam was bad over the border bridge. I decided to hike. Worked like a charm. I made better time and got some exercise. On top of all that it was cheaper.
Post a Comment
Read more
-
Image
It is Saturday. I am in Foz de Iquazu on the Brazil/Paraguay/Argentina border. I took a hard hat tour of one of the largest hydro plants in the world. There are a few left for me to visit worldwide. There are of course some interesting aspects of this power plant. There are 20 turbines, half are 60 Hz (Brazilian) the other half are 50 Hz (Paraguayan). Since Brazil buys most of the juice they have to convert the 50Hz to 60Hz in a converter 8 km away from the power plant. I wonder how efficient that is. Even if it is 98 percent that is a significant cost at those wholesale levels. Also, the area surrounding the dam is called Itaipu Binational area. The treaty area was specifically created for the powerplant. Now the area is becoming an area of intercountry cooperation for Latin America and they are building a university in the binational area. Clearly, beside the technology and engineering there is considerable political acheivement to be considered here just as at the Moses plant in Nia...
Post a Comment
Read more