Chemical Engineering Principles 1 Program Website: www.eng.ysu.edu/~chegr

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Chemical Engineering Principles 1Program
Website www.eng.ysu.edu/chegr
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CHEGR 2683 Grading Policy
  Number Points Each Total Points Percent of Course Total
Homework 8 20 160 32
Quizzes 4 50 200 40
Project 1 100 140 28
Final 1 200 200 40
Total     500 100
The better of the cumulative quiz scores and
the final exam score will be used for the final
grade.
Points Final Grade
450 - 500 A
400 - 439 B
350 - 399 C
300 - 349 D
Below 300 F

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Supplemental Instruction (SI)Fall 2006
COURSE CATALOG NUMBER COURSE CODE INSTRUCTOR SI LEADER
Biology 1551 0317 Womble Christine Kulvalchick
Biology 2601 0348 Asch Michael Dinh
Chemistry 3719 0537 Norris David Martin
Economics 2610 0709 / 0710 Helsel Kathleen Kennedy
Psychology 1560 2700 Ellyson DeAnn Delfre
Psychology 1560 2707 Fry Christina Humble
Sociology 1500 3004 Sergi Andrea Landis
Ask your instructor about participating in SI
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Spring 2006 Results for SI
GPA 10 Students who attended 10 or more study
sessions
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Previous Project
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Chapter 2

• Units of Measurement
• Force/Weight

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Quote from H. Klesch, B.E ChE 2004 August Mack
Environmental
Lastly, for all the young kids who hate
converting, it's amazing how much converting you
really do in a job. Everyday I am converting from
English to metric and vice versa, or the boss
will ask what equivalent units there are for
something and what it means or given a number,
put it in a way we can understand. Most of the
time though we have to report in certain units
only and all the information is in units long
from the one you want.
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Quote from D. Oaks Former YSU ChE Sophomore
I will be going to OSU in the fall and they said
I have the knowledge of a junior. They were
impressed with the fact of CHEMCAD being
introduced so early and knowing Excel. They only
use Excel for printing imported things.
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Common Units in Engineering

• Rest of the World
• kg or metric tonne
• m
• m3 or liter
• N
• J or kW-hour
• W
• Pa or kPa or bar

• United States
• lbm or ton (short/long)
• ft
• ft3 or gallon or barrel
• lbf
• Btu or hp-hour
• hp
• atm or psi or in. Hg or mm Hg or torr

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Common Errors

• Metric tonne or American Engineering ton
• Fluid ounce or mass ounce
• lbm or lbf
• American Engineering gallon or Imperial gallon
• Barrels
• 1 Barrel US liquid 31.5 gallons
• 1 Barrel US oil 42 gallons

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Engineering Calculations must Always be Correct
with Respect to Units of Measurement
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Force and Weight

• Force Mass x Acceleration
• Newton, lbf
• Weight Mass x Acceleration of gravity
• Newton, lbf
• 1 Newton 1 kg accelerating at 1 m/s2
• 1 lbf 1 lbm accelerating at 32.174 ft/s2

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Weight of 10 kg on Earth
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Weight of 10 lbm on Earth
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Chapter 3

• Density/Specific Gravity
• Chemical Composition
• Liquid Static Pressure