Summer Is a Coming!Written by Duncan under Ceiling Fans, General | No Comments
Even if you are not a fan of weather forecasters, they all seem to be in agreement about what this summer is going to be like. It’ll be a scorcher! Not just the Met Office, but a number of commercial forecasters (which have to be right more often so they get paid!) are suggesting that it really could be a “Barbecue Summer” this year. In fact, it was suggested at the UN Climate Conference in Copenhagen that 2010 will be the hottest year ever recorded for the world, beating the current title holder of 1998. It’s all down to a mixture of the inexorable rise of global warming and El Nino (the periodic natural warming of the waters of the eastern tropical Pacific) which is currently pushing up world temperatures.
1998 was a record because the El Nino that year was the strongest ever seen, but climate scientists believe 2010 is likely to top it. A record warm year in 2010 is not a certainty though, especially if the El Nino is weaker than expected or there was a large volcanic eruption on the scale of Mount Pinatubo in the Philippines in 1991 that spews vast amounts of dust into the upper atmosphere. The current eruption of the volcano under the Eyjafjallajokull glacier (does anyone out there know how to pronounce that?) in Iceland may disrupt air traffic but isn’t big enough to have that sort of impact.
The consensus seems to be that there’s more than a 90% chance that this summer will be hotter than 2009 and may well turn out to be the fifth hottest year in the global record. Don’t rush out and buy the Barbie just yet though, because if all the predictions are true, then a warmer atmosphere holds more moisture, so it will also be hot, humid and sticky with an increased chance of rain.
So it’s likely that the “must have” piece of kit for this summer won’t be the BBQ, but a decent fan for home, office or industrial use. Whether it’s oscillating desk fans, remote control pedestal fans, high velocity fans, ceiling fans or heavy duty industrial drum fans for cooling factories, warehouses and depots, they all work the same way. The difference is merely a matter of scale and square footage they can handle. Any fan does not actually “cool” a space at all. What a fan does is to create a wind chill effect in the summer. It’s the same effect that you get when you blow on hot soup to cool it down. The movement of the air increases the soup’s loss of heat by convection, so the soup cools down quicker. By blowing air around, a fan makes it easier for the air to evaporate sweat from your skin, which is how the body normally gets rid of excess heat. The greater the rate of evaporation, the cooler you feel.