Lecture 5 – Physical Attributes Chapter 2, pgs

Slides:



Advertisements
Similar presentations
These describe matter. Starts with a “p”
Advertisements

Aggregate Properties HMA
Thermal Properties and Moisture Diffusivity
5/15/2015BAE2023 Physical Properties of Biological Materials Lecture 5 1 Quick Review –Describe size, shape, style –Sphericity –Determining volume, equipment.
Lecture 5 Physical Properties of Grains Geometrical Properties Engineering Properties.
Ch. 4 continued Soil Properties.
Physical Properties of Soil
Proportioning of Concrete Mixtures
Proportioning of Concrete Mixtures
Chemical Building Blocks Lesson 2 Chapter 1 Measuring Matter.
Fluids Part 2 A look at mass, volume, weight, buoyancy and density
Density.
1 Density Notes- Part 1 Chemistry 1. 2 Density The compactness and size of the molecules or particles of a substance –the more compact or squished together.
List 3 Examples of Matter: 1. Solids- definite shape and volume 2. Liquids- definite volume, no definite shape 3. Gases – No definite shape, no definite.
Key Vocabulary Matter and changes Mixtures Atoms Periodic Table PotpourriAcids and Bases States of Matter
CHEMISTRY the study of matter MATTER anything that has mass and has volume.
DENSITY. Density is the measure of mass per unit volume of substance. So, density is a measure of the amount of matter (particles) in a given volume (space)
LECTURE 6 Soil Physical (Mechanical) Properties – Bulk density, porosity, strength, consistency.
Density. Vocabulary Proportional Inversely proportional Ratio.
Matter Chapter Twelve: The Physical Properties of Matter 12.1 Density 12.2 Buoyancy 12.3 Properties of Materials.
Introduction to Matter Lecture: Calculating Density.
Soil Structure, Density, and Porosity
Chapter 5: Density and Buoyancy
What do you need to think about when drying grain?
Lecture 6 – Moisture Relationships
2/15/2016BAE2023 Physical Properties of Biological Materials Lecture 4 1 Lecture 4 – Physical Attributes.
3/7/2016BAE2023 Physical Properties of Biological Materials Lecture 8 1 Water Activity: (remainder of Chpt 3) –Used when referring to foods –EMC used when.
The Volume of 3 Dimensional Shapes 5 in 4 in 5 in 4 in We had previously learned the definition of the Area of an object. So what is Area? Find the area.
Volume Measurement experimentally measured by liquid/gas displacement امین اله معصومی.
Copyright February 22, Index Properties of Soils Prof. Basuony El-Garhy Geotechnical Engineering and Foundations Civil Engineering Department Faculty.
Aggregate Properties HMA
LABORATORY DETERMINATION OF POROSITY
Lesson 2 Determining Density. Lesson 2 – Determining Density You will use mass and volume measurements to calculate the densities of water, regular shaped.
Physical and Chemical Changes
Sardar Patel Institute Of Technology
Density.
Mass vs. Weight Mass = amount of matter in an object
SEM 3 CIVIL.
5. WEIGHT VOLUME RELATIONSHIPS
Chapter Menu Lesson 1: Density
Lecture 5 – Moisture Relationships Announcements
Lecture 4 – Physical Attributes Announcements
Lecture 4 – Physical Attributes Announcements
Psychrometrics – Lecture 3
Grade 8 Science unit 3: fluids & viscosity
What is Matter? 3.5B Describe and classify samples of matter as solids, liquids, and gases and demonstrate that solids have a definite shape and that.
MATTER.
Lecture 9 Announcements
Topics in Processing Dr. C. L. Jones Biosystems and Ag. Engineering.
Lecture 6 – Moisture Relationships
Psychrometrics – Lecture 3
Lecture 7 – Water Potential
Properties and Changes of Matter
Lecture 4 – Physical Attributes Announcements
Lab #1 due TODAY!!!!!  HW#5 due Wednesday, 2/11
Lecture 3 – Physical Attributes Announcements
Lecture 8 – Viscoelasticity and Deformation
HW#2 due tonight by midnight ( ) HW #3 due Jan. 23rd
Lecture 5 – Physical Attributes Chapter 2, pgs
Lecture 7 – Water Potential
Micrometrics. It is the science and technology of small particles. Knowledge and control of the size and the size range of particles are of significant.
Lecture 3 – Physical Attributes Announcements
Lecture 7Announcements
Lecture 4 – Physical Attributes Announcements
The Nature of Science ?.
Lecture 7 – Water Potential
Properties of matter Objects: *Describe the two properties of matter
Particles and Density How does the arrangement of particles effect density ? How is density calculated ?
Maximum Size of Aggregate
Matter Review for test Fifth Grade.
Presentation transcript:

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Quick Review Describe size, shape, style Sphericity Determining volume, equipment Surface area Electronic method for estimation 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Density: Definition: weight per unit volume Liquid density determined by pycnometer, hydrometer Common liquid food product in Table B.1 in Appendix B May change significantly with temperature Specific Gravity: Definition: ratio of density of liquid to density of water Change due to temperature is small 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

BAE2023 Physical Properties of Biological Materials Lecture 5 Hydrometer Brix: sucrose Lactometers: milk density Oleometers: veg. oil 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Foams: products with large amounts of air incorporated during processing Whipped cream, sherbet, ice cream Describe using “overrun”: % increase in volume attributed to air Icemilk: 30-40% Sherbet: 50-80% Cream: 100-120% 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Particulate Materials Solid Density: weight per unit volume excluding interior pores Particle Density: weight per unit volume of individual kernel Bulk Density: weight per total volume occupied by large quantity of kernels Density of water is different than other components…we can distinguish solid density and water density 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

For water and solids: BOOK CORRECTION ex. 2.4 Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 For water and solids: BOOK CORRECTION ex. 2.4 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 “particle density is highly dependent on moisture content” EX: suppose the soybean moisture content were 0.16 and the kernel density were 1.232 g/cm3 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Density of fruits and vegetables: Determined by water displacement method. Example 2.5 Table 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

BAE2023 Physical Properties of Biological Materials Lecture 5 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Bulk density Determined by pouring a sample into a container with known dimensions. Variables: method of filling and striking surface Conversion: 1 bushel = 1.244 ft^3 or 0.035239 m^3 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Test Weight Factors affecting test weight…moisture content, broken kernels, fines, variety/hybrid, growing conditions Bulk density Table 2.3 (you will need this table later on!!!) Porosity: space between particles, not within particles Calculated from bulk density and particle density Example 2.6 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Regression and Statistical Distribution Equation 2.6 What is this business about logs? Mean and standard deviation (measure of variability) r^2 Normal distribution Influences how we design equipment to handle particles 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Sieve analysis Sized by the 64th Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Sieve analysis Sized by the 64th 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Radius of Curvature Sharpness of curvature will determine how readily an object will roll Determined by radius of curvature Figure 2.6 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

Lecture 5 – Physical Attributes Chapter 2, pgs. 21-48 Applications Separate foreign material Proper singulation during planting Separate germs, pericarps, hulls from endosperm or cotyledon Size grades and shape Density separation (milk separator) Watermelon sorting by shape and weight Sorting by shape…orientation is a problem Optical sorting 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

HW#4 Part 2 Assignment Due 1/31 Problem 1: A) Calculate the sphericity of a blueberry, a Red Haven peach, and a Norchip potato. B) Which one is more spherical? Problem 2: Calculate the volume of a Bart 46 Wheat kernel Reference class handout What is the percentage error when compared to the volume determined by testing? Problem 3: Using a piece of fruit or vegetable of your choice, and example 2.3 in Chpt 2, determine the volume and surface area. 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5

HW#4 Part 2 Assignment Due 1/31 Problem 4: #2.6 in book Problem 5: #2.10 in book 2/19/2019 BAE2023 Physical Properties of Biological Materials Lecture 5