CHEMENG 3P04 Study Guide - Midterm Guide: Deadband, Viscosity, Constantan

• School: McMaster University
• Department: Chemical Engineering
• Course: CHEMENG 3P04
• Professor: P. Kruse

Document Summary

Wide rangeability - insensitive to variations in density, temperature, pressure, and viscosity high reangeability -good accuracy. Good for slurry service - intermediate pressure loss. Wide rangeability - insensitive to variations in density, temperature, pressure, and viscosity high reangeability -good accuracy disadvantage. High pressure drop - damaged by flow surge or solids disadvantage. High pressure drop - damaged by flow surge or solids. Lower pressure loss than orifice -slurries do not plug. Good for slurry service - intermediate pressure loss disadvantage. Higher cost than orifice plate -limited pipe sizes. Application ( c) type e: chromel- constantan type j: iron-constantan type k: chromel-nickel type t: copper-constantan. 1. 5 or 0. 5% for 0 to 900 c. 40 c-temperature vs. emf not exactly linear -drift over time-low emf corrupted by noise. Highly nonlinear- only small span - less physically rugged -drift. 1-5% of full span spiral helical up to 100 mpa up to 100 mpa.