In areas of enhanced heat flow, geothermal heating can be used to supply heating to homes,...

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Physics

In areas of enhanced heat flow, geothermal heating can be usedto supply heating to homes, either by using ground water directlyor by placing a water reservoir at depth. In Iceland, where theaverage temperature over the year is 6.1ÂºC, the geothermal flux canbe as high as 300 mW m-2.
(a) If you wanted to be able to supply a home with water at atemperature of 50ÂºC, how deep would your reservoir need to be?
(b) Why might Iceland have such a high geothermal flux comparedto other areas?

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4.3 Ratings (842 Votes)

2a Temperature inside the Earth increases with depth and the rate of increasing temperature with respect to increasing depth in the Earths interior is known as geothermal flux or geothermal gradient This heat from Earths interior can be used as an energy source known as geothermal energy The geothermal gradient varies with location and is typically measured by determining the See Answer

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