Lecture 12.

Slides:

Advertisements

Similar presentations

Grain Handler U.S.A..

Advertisements

IX. REDUCING GREENHOUSE TEMPERATURE A. temperature regimes –range deg, stress above 90 deg.

Drying Basics By: M Gummert J Rickman Agricultural Engineering Unit

Bernoulli’s Theorem for Fans PE Review Session VIB – section 1.

On-farm Bin Storage Sandra M. Frost UW Cooperative Extension Service.

Pulping and Bleaching PSE 476 Lecture #5 Continuous Reactors Lecture #5 Continuous Reactors.

Airflow Properties & Measurement

Corn Storage and Drying – Spring 2009 Corn Storage and Drying – Spring 2009 Kenneth Hellevang, Ph.D., P.E. Professor & Extension Engineer Agricultural.

Pump Affinity Laws. P. 100 of text – section 4: vary only speed of pump P. 100 of text – section 5: vary only diameter P. 106 of text – vary BOTH speed.

Core Principles Bernoulli’s theorem for Fans

HVACR416 - Design Humidification. Relative Humidity 1.Air in the home is artificially dried out when it is heated. 2.Because warm air expands, this expansion.

2009 Soybean Drying Tips Kenneth Hellevang, Ph.D., P.E. Professor & Extension Engineer Agricultural & Biosystems Engineering NDSU Extension Service.

Canola Harvesting BY Derek Thoms. What can be used to harvest canola This is a grain head which is used to harvest small grain products like canola. This.

Refrigeration and Cooling Principles for Potato Storages

1 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – December 2012eere.energy.gov Moisture Assessment WEATHERIZATION ENERGY AUDITOR SINGLE FAMILY.

HVACR416 - Design Pressure Measurement Part 2. Pressure Measurement Several pressure measurements exist. They all measure the same things, the force of.

Lecture 5 Grain Drying Fundamentals. The Drying Process  Moisture removed from one point to another at a rate dependant on the difference in water vapor.

 Install new air cooled high efficiency screw chiller (variable speed)  Install new fan coils with ECM motors and low temperature heating coils and proper.

Potato Storage Management for Quality Potatoes

Windows Do not open or close all windows and doors at the same time. Optimise the ventilation by experimenting with opening different windows instead.

DRYING Dr. Basavaraj K. Nanjwade M. Pharm., Ph. D

Cooling Systems Purpose: to keep the engine at it’s most efficient operating temperature TOO HOT! TOO COLD! - poor lubrication - excessive heat - seizing.

Lecture 23 Site Selection. Layout and Design of Grain Storage Systems  Two general (guiding) principles:  closed loop - deliver or receive grain from.

Refrigeration Basics 101.

Refrigeration and Cooling Principles for Potato Storages Roger Brook Professor and Extension Engineer Agricultural Engineering Department Michigan State.

Potato Storage Ventilation and Humidification Roger Brook Extension Engineer Michigan State University.

Lecture 17 Flat Structures. Aeration for Flat Structures Ideally - uniform air flow – "dead zones" –min. of.2 cfm design rate (this is double) –fines.

III.PHYSICAL PRINCIPALS - TERMINOLOGY A. Temperature and Heat 1. Temperature Intensity of Energy Units; Degrees C or F.

AHU-10 Steril-Aire Test Data AHU-10 Notes: Dry bulb (before) and dry bulb (after) temperatures are almost identical, within 5/100 th ’s of each other.

Types of heater: Gas Why Use Gas-fired Heating Equipment ä Most economical heating source ä Wide variety of equipment available ä Most common source.

Commissioning the System. Use Service form 1A Proof of performance Speeds up Tech support Reduces recalls Commissioning.

Sunflower and Oilseed Storage

Tommy’s Tips Non-Refillable Refrigerant Cylinders ©Tom Schaefer Upstate Systems 5/21/2010.

Solar Lumber Kilns Jake Altemus. The Sun  Provides huge amounts of “low intensity energy” (Wengert and Oliveria)  Really Dispersed.

1. What is a thin blanket of air that surrounds the Earth?

What do you need to think about when drying grain?

Lecture 6 – Moisture Relationships

2/6/ Moisture Relationships. – Amount of moisture affects the following: Density: particle density decreases with increasing moisture content Force-deformation.

Climate Integrated Science 2. Climate What things impact climate? LAPTOP V acronym – Latitude – Altitude – Proximity(closeness) to H 2 O – Topography.

Lecture 13. Table 1. Maximum Recommended Moisture Contents of Selected Clean, Sound Grains for Storage with Aeration

High Moisture Corn Drying and Storage Kenneth Hellevang, Ph.D., P.E. Extension Engineer & Professor.

1 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010eere.energy.gov Moisture Assessment WEATHERIZATION ENERGY AUDITOR SINGLE FAMILY.

EMERGING TECHNOLOGIES AVAILABLE TO REDUCE COMPRESSED AIR DEMAND Double Acting Air Cylinder Double Acting Air Cylinder Air Operated Diaphragm Pumps Air.

Temporary Grain Storage Modified by the GA Agriculture Education Curriculum Office July 2002.

Behaviour of agricultural/food materials under stress

2009 Soybean Drying Tips Kenneth Hellevang, Ph.D., P.E.

Home Energy Savings Tips

Powdered Milk Plant Design

Heat Transfer and Refrigeration Cycle

5.2.7 Evaporative Coolant System

Bernoulli’s Theorem for Fans

Heat loss and heat gain in buildings: Outside air (OA) (Additional information) Required to be brought inside a building envelope to continuously replace.

HYDROLOGY Lecture 5 GROUNDWATER

State of the Atmosphere

Grain Aeration, “Just the Basics, Ma’am”

Lecture 5 – Moisture Relationships Announcements

Chapter 7 Quiz.

Evaporation & Condensation

Fans – Lecture 2 Fan testing: Dr. C. L. Jones

Lecture 6 – Moisture Relationships

Fans – Lecture 2 Fan testing: Dr. C. L. Jones

Fans – Lecture 2 Fan testing: Dr. C. L. Jones

Best Practices for Grain Storage

Lecture 16 Aeration.

GRAIN DRYING AND GRAIN DRYING METHODS MUHAMMAD HAMMAS IRFAN STUDENT AT AGRICULTURAL ENGINEERING BZU MULTAN (36-AG15)

noiseblock™ enclosure

(c) McGraw Hill Ryerson 2007

Moisture in the Atmosphere

Presentation transcript:

Lecture 12

Review of Systems In bin Batch In bin Deep Batch In bin Continous Shallow layers 3.5ft deep In bin Deep Batch Less efficient-losses while stirring In bin Continous Hot grain moved away for storage Only 1400 Btu/# water needed Portable Batch First pass dryer

Dryeration Remove hot grain at 1.5 % above safe storage Residual heat will remove the 1.5% Air is pushed through the bin Problem with power vents so after ½ full, air is pulled through the top of the bin No condensation on roof of bin

Cooleration Dry Grain to 18% moisture Use 1.0-1.5 cfm fan

Fan Types for In Bin Drying Axil-low pressure Excessive static pressure If Additional fans are needed Must be identical In Size (Hp) Mounted in Tandem To double air flow- 4x’s more Hp needed

Fan Types for In Bin Drying Centrifugal Tip speed of fan determines capacity

Selecting the right fan Size of bin Amount of grain Type of drying system Moisture content of grain