The Effect of the Surrounding Medium of a Fluid on its Rate of Heat Loss

1437 WordsJan 27, 20186 Pages
The Effect of the Surrounding Medium of a Fluid on its Rate of Heat Loss was conducted by the experimenter. The sciences behind the investigation include the five primary methods of heat loss and the characteristics of the fluid encompassing mediums such as being good conductors of thermal energy and having low emissivity. The purpose of the experiment was to establish the best medium for sustaining the temperature of a fluid. The experimenter hypothesized that if a liquefied substance is placed in Styrofoam, metal, glass, and thermoflask medium, then the substance’s rate of heat loss will be slowest in the thermoflask medium. To conduct the experiment, the investigator poured 90 degrees Celsius water into the four mediums, Styrofoam, metal, glass, and thermoflask, then recorded the temperatures after 30 minutes. The result temperatures were divided by 30 to calculate the degrees Celsius lost per minute. The hypothesis turned out to be correct with thermoflask losing heat the slowest at a rate of 1.01 degrees Celsius lost per minute. The glass medium had the fastest rate of heat loss at a rate of 1.26 degrees Celsius lost per minute. There was an explanation behind why the results came out the way they did. According to the Stefan-Boltzmann law, materials with low emissivity lose radiated heat slowly. Thermoflasks have a low emissivity which gives reason to why the thermoflask was more efficient at sustaining a temperature of a fluid. The glass’ speedy rate of heat loss was
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