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# hw#3 - Thomas Ronan Fluid Earth Hw#3 1 a[K =[F 459.67 5/9 =...

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Thomas Ronan Fluid Earth 4/11/08 Hw #3 1.) a.) [K] = ([°F] + 459.67) × 5 9 =, where given -95°F, K = 364.67 (5/9) = 202.59K b.) E = (5.67x10 -8 )(202.59K) 4 = (1684503888.182K) = 95.51W/m 2 c.) Max. λ = 2898μm K / (202.59K) = 14.305 μm 2.) Conduction: Is the transfer of heat through matter by molecular activity. In other words, regions of higher temperature spontaneously transfer some of their thermal energy, through matter, to a nearby region of lower temperature, which acts to equalize temperature differences. This type of heat transfer can be felt by grabbing something hot and burning your hand. The transfer of heat into your hand from any solid object such as a hot pot is called conduction. Convection: Is the transfer of heat through fluids and gases. This is accomplished by random diffusing of gas and liquid particles and by adhesion, which is the large scale circulation or heating of a gas or liquid. Convection can be seen in a pot of boiling water where the hottest water is near the bottom of the pot that is touching the burner and forces the water upwards due to its increased energy causing a general circulation of warmer water rising, and the cooler water sinking to take its place. Radiation: Transfer of heat that does not require any medium for transport. Radiation transmits throughout a large frequency, part of which being the visible spectrum .4μm to .7μm. The sun is a prime example of radiation for heat transfer. The sun’s energy must travel through the vacuum of space before reaching earth, yet it still retains its energy in the forms of radiation. Infrared Radiation is the most important for the heating of the earth as it is reflected by the earth itself from incoming solar radiation then absorbed by greenhouse gases such as methane and carbon dioxide and redistributed throughout the atmosphere causing the general dispersal of heat that is found on our planet. 3.) The Maximum daily temperature occurs after the peak solar radiation, which is around noon,

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hw#3 - Thomas Ronan Fluid Earth Hw#3 1 a[K =[F 459.67 5/9 =...

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