Thermo Dynamics- Conductivity Measurement

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Thermodynamics; Conductivity Measurement Summary In this Lab we found that the thermal conductivity stainless steel to be 11Wm/K, the theoretical result is 15W/mK. This result was reasonably accurate with a 26.6% disparity between the results. The graph of the results showed a straight line showing any errors remained constant during the lab. These results are acceptable when potentially large errors are considered. The lab involved determining the thermal conductivity by electrically heating a sample at one end and water cooling it at the other this gives a linear relationship between temperature and distance form the source which may be manipulated to calculate the thermal conductivity of our material. There is more detail in both the theory and the procedure. This lab has made me consider all the applications of thermodynamics in the modern world and has made me aware of how many applications Introduction The aim of the experiment was to determine the heat conductivity of a substances used. From this result we could determine which substance it was and compare the experimental values to the theoretical.. This lab shows how materials react to heat energy inputs and how far this energy spreads along the substance relative to the energy lost, along with allowing us to calculate the thermal conductivity. Thermodynamics are an essential part of the functioning of engines, therefore the automotive industry relies on the understanding and the application of thermodynamics. Some motorcycles still use air cooling however most automobiles now use form of liquid cooling. A car radiator is a good example of a heat sink through use of a coolant. Coolant flows around the engine once the engine has heated up to is optimum temperature, taking heat from the engine. This coolant passes through a radiator in which it is separated into lots of individual fins with

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