Thermocouple Lab

NC STATE UNIVERSITY Mechanical Engineering Systems MES 305 Dr. Bill Fortney Temperature Measurements using Thermocouples salutary phase of the moon report format Laine Johnson Aaron Burge Lab realized June 20, 2011 Introduction The purpose of this research science lab was to evidence the measure of liquid temperatures using thermocouple junctions, the most common rule of standard and controlling temperatures. We watched a pre-lab video that explained the definition of a thermocouple (a junction surrounded by 2 dissimilar metals). therefrom the video introduced the Seebek effect, the Peltier effect, the Thomas effect and the Law of negotiate Temperatures. During the lab we habitd thermocouples to demonstrate each of these effect and the Law of intermediate Temperatures. Thermocouples are suitable for measuring over a full-size temperature range, up to 2300?. They are not suited for instruments that need passing precise and accurate mea surements. As an Engineer you must be able to work with and understand the applications of thermocouples. Here is a shake off of applications that are well suited for the use of thermocouples: kilns, flatulence turbine exhaust, diesel motor motor engines and many gas-fed heating appliances (ovens and water heaters that make use of a pilot flame to ignite the main gas burner). germane(predicate) Theory When working with thermocouples you will need to know the 3 effects and the laws pertaining to the thermocouple. 1) The Seebek effect showed that a thermocouple produced a electric potential dominance (or emf), measured in millivolts, in the wire which in morsel caused a temperature difference. There is a reproducible affinity between the emf and the temperatures (T1 and T2). Seebek effect ?AB = [?emf?T]opencircuit e quation #1 Where ! A and B refer to the two materials that integrate the thermocouple. emf is the voltage potential T...If you indigence to get a full essay, order it on our website: OrderCustomPaper.com

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