Project Proposal: Instrumentation for Monitoring Environmental Data of a Temperature Based System Team Kyle Evans & Cody Morton 7-Apr-14
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Introduction There are many different systems in industry the require precise temperatures to be completed; this is especially true in the chemical processes of fractional distillation used in tuning crude oil in Fuel oil, Diesel, Kerosene, Petrol, and Propane. If we use the example of turning crude oil into Fuel this happens at 370°C if we go too much cooler we produce Diesel. This is not the process that requires accurate temperature to be taken; food process also needs these measurements and this is the process we will be mimicking in our experiment. We plan on measuring water temperature similar to industrial food process; with temperatures of water varying from 3°C to 100°C.
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System Specification We will be measuring water temperature in a verity of sensors to try and develop a good model for the system.
Function Range Resolution Error Display Absolute Water temperature T (°C) 0 to 100 OC 12 bit 0.5°C Thermometer -
Selection of Sensors The following sensor was selected to measure the water temperature a) Temperature sensor – DS18B20 b) Temperature sensor 2 - MLX90614
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System Design The implementation of the system functions are investigated, and divided into two groups: primary functions, and derived function. The primary functions are measured through physical sensors, and the derived functions are calculated according to the primary functions. The table below shows the system design.
Primary/Derived Function HW/SW Sensor Formula Primary Function Temperature (P) HW + SW MLX90614 NA Temperature (P) HW + SW DS18B20 NA
- Testing System To calibrate the instrumentation system, we will be exposing our sensors to different water conditions and comparing it to alcohol thermometers. 6