Baldor Energy Savings Tool

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• Baldor Energy Savings Tool
• Version 3.0

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BET - an Overview

• Baldor Energy Savings Tool
• Version 3.0

(A software estimating tool for electric motor
energy calculations.)
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Baldor Energy Savings Tool

• A software package designed to assist you with
• Formal energy audits
• Premium efficient motor upgrades
• ASD energy savings calculations
• Motor Management Evaluations
• Project quotations
• Quick motor nameplate data reference
• Includes various calculators for easy reference

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BET 3.0 - Agenda

1. Saving Energy
2. Program Basics
3. Example problems

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Part I Saving Energy

• You save energy by improving the overall
  efficiency of the driven system. There are many
  energy wasters within a given system, but one
  component that should always be checked is the
  power input side or the electric motor.
• The BET program concentrates on improving the
  power input of the system. BET calculates the
  estimated energy that can be saved by using
  Premium Efficient motors and drives where
  applicable. Payback periods for motor efficiency
  upgrades are calculated and motor replacement
  timetables are recommended.

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Why is Motor Efficiency Important? - Wasted
Energy

• 10 Hp motor running at full load
• Measured Power in - 8,025 Watts
• Power out 10 Hp x 746 7460 Watts
• Efficiency Power Out / Power In
• Efficiency 7460 / 8025
• Efficiency .930 or 93.0

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What is Higher Efficiency Worth? Even a 4.5 point
efficiency gain is important.
40 HP Super-E with 94.5 efficiency compared to
standard motor with 90 eff. Operating 50
weeks/year
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BET Basic Motor Calculations

• Annual Motor Operating Cost
• To find the annual operating cost of one motor
• (HP .746Watt/HP ML Hours /kWh) /
  Efficiency
• To find the annual operating cost difference
  between two motors
• (HP .746Watt/HP ML Hours /kWh) /
  1/(Enew Eold)

ML percent motor load, Hours annual
operating hours, E efficiency
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Obtain Even More Energy Savings by Using Drives
on Variable Torque Loads
Potential Energy Savings Air conditioning
20-25 Compressors 20-25 Central
refrigeration 25-35 Blowers and fans
30-35 Feedwater pumps 30-50
Source Wisconsin Center for Demand-Side Research
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Where do Drive Savings Come from? Look between
the curves.
Typical variable torque Fan and Pump Curve
The savings occur between the curves
160.21.1
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Why does this work?Variable Torque Pump and Fan
Loads use the Affinity Laws, the required HP is a
cubic function of rpm.
100
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Fan or Pump Load Curve
LOAD
50
25
Power Speed3
0
0
25
50
75
100
SPEED / FLOW
110.8.6
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In words, using an adjustable speed drive saves
energy by?

• Reducing the speed of a variable torque pump or
  fan significantly reduces the energy usage of the
  driving motor.
• The why can be summarized by a set of rules
  called the affinity rules.
• Flow produced by the system is proportional to
  the motor speed.
• Pressure produced by the system is proportional
  to the motor speed squared.
• Horsepower required by the system is proportional
  to the motor speed cubed.

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An Example A adjustable speed drive (ASD)
running a variable torque load at 50 speed needs
to deliver only 12.5 of the horsepower required
to run it at 100 percent speed.
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Not every driven system can benefit from using an
Adjustable Speed Drive

• A constant torque system would not use a drive to
  save energy, but may use one for
  convenience.
• If you have a variable torque system.
• Look at the typical operating points or load
  profile of the system throughout the day to see
  if the system could benefit from a drive.
• The load profile determines the amount of energy
  savings that is possible.
• Does the system require full power all the time?
  
• Does the load on the system vary throughout the
  day?
• The load profile can be set in the program.

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Load Profile - Excellent ASD Candidate
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Load Profile - Poor ASD Candidate
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Load Profile - Average ASD Candidate
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Part II Program Basics Many New Features
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BET Main Screen Single Motor View
Select single motor view here.
Inputs
Preferences/Views
Alternatives
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BET Multiple Motors View
Toggle Buttons
Multiple motor buttons
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1st Set the Preferences Global Settings
Global Settings
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Explore the Menu Projects dropdown
Menu Bar
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Explore the Tools Menu
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Explore the Help Menu
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Most entry fields use Dropdown Boxes to select
the appropriate data. Enclosure example below.
Dropdown Choices
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If you dont know the existing motors efficiency
use the built in Efficiencies table.
Click in the Efficiency Box, this data pops up.
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BET Built in Repair Costs
Great New Feature Rewind Cost Click in the
replacement net/repair box to insert this cost
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Help Button are available to explain data fields
Help Buttons
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Once the data is filled in for a motor click on
the Instant Calculation Button to get the
calculations
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Instant Calculation Results
Energy Used
Payback
Selected Motors
Search Aid
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Look at the Payback Months! You want fast
Paybacks

• What is Payback?
• The Time it Takes to Recoup the Extra Cost of a
  Premium Efficiency Motor by Reduced Energy
  Consumption
• ((Baldor Motor Cost Replace/Repair Cost
  Rebates) / Annual Energy Savings) 12
• Much Simpler to Determine Than Present Value
  Analysis (used in some energy software)

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Click on the Blue catalog number to see the
Motors Data
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You can choose a motors from the Potential Match
List
BET sorts motors by highest efficiency then
lowest List Price.
You can now choose to override this basic rule
and select your own motor.
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For multiple motors projects selecting the
Project Cost Button combines all motors in a
project.
Click to calculate the cost of the entire project.
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Project Cost Analysis Results
Summarized Project Data
Standard Reports
Raw Data
Custom Report
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Excel Export showing Raw Data can be imported
as a new project
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Excel Export Custom Report Template, can add a
customer logo
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Standard Reporting of Project Summary
Click for printed reports
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Standard Report Details
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Standard Summary Report
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How add a drive to a motor? Click the ASD
Checkbox
Click if Motor has an ASD
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Fill in the ASD Data
Application
Edit Load Profile
Add ASD costs
Existing ASD?
Lastly click the OK button
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To see the ASD graph, 1st click on Instant Cost
Calculation button on the input screen then the
ASD Graph Button
Click Here to See Graph
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The ASD Graphs and data for each motors has been
transferred to an Excel Spreadsheet
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How Do you input Data?

• Two Methods
• Direct entry on the desktop
• Import an Excel file

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To Import data, go to the Projects Menu at the
top of the screen and select Import a Project
then choose a new or existing scenario.
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The Help with Importing Button Shows an
Importing Template Example
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How do I setup the Motor Management Options?
These options are found on the global settings
menu.

• Several rules of thumb are employed to establish
  a formal policy for the repair and replacement of
  existing motors. These are the
• Repair/Replace HP breakpoint
• Repair/New Price Ratio
• Payback Months
• Policies are best established before a failure.
  Being prepared for and knowing what to do is a
  critical part of a Motor Management Plan.

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Motor Management - Repair/Rewind Breakpoint
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Motor Management - Payback Months
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Motor Management - Rewind/New Cost Ratio
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New Features in BET 3.0 - Gear and Affinity Law
Calculators
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New Feature in BET 3.0 Add Custom Motor

• In multiple motor view click the add custom
  motor button

• Fill-in the data for motor and click add motor

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New Feature in BET 3.0 Use Net Pricing by
Multiplier

• 1) Select view/change project multiplier
  settings
• 3) Select Net or List Pricing

• 2) Add the selling multipliers

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New Feature in BET 3.0 Add Custom Customer Logo

• 1) On Tools menu Select Import Custom Logo

• 2) Locate and Import Logo

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New Feature in BET 3.0 Add Custom Customer Logo

• 1) Logo is positioned on workspace and Excel
  Custom Report

• 2) Reposition logo as needed

Logo files can be JPG, BMP, GIF, WMF
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Part III Example Problems - Now a real world
example.

• Lets look at a 5 motor project and determine
• The Baldor replacement motors
• The potential energy saved
• The estimated payback months
• The Motor Management Plan decisions

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Follow these steps create a new project.

1. Enter the new project name and save it
2. Set the preferences and global settings
3. Enter the data
4. Run the project calculations
5. Review the data
6. Go back and tweak, possibly add a VFD
7. Present report to customer

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Create the new project name and save it
Click on the new projects menu button then select
new projects.
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Name your new project
Type in project name and press enter to save it.
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Set the preferences and global values
1st - Click on multiple motors.
2nd Click on global settings button
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Set preferences and global values
Enter values for

• Select Currency
• Electric Rate (cents/kWh)
• HZ HP
• Select Efficiency tables
• Enter Default Motor Load
• Add Motor Management set points

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Select the multiple motor view if not already
selected
Click Multiple Motor View
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Enter the data
Quantity Name Here
Enter Data Here
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Click here to enter next item
New item button
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Complete entering the following items
Qty 3 1 6 10 2
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Run the project calculations
Click here
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Review Data

• Note that
• 4 of 5 motor processed completely, no premium
  efficient motor for small ½ hp zone blowers.
• All of the motors have low payback periods.
• According to the Motor Management Plan motors
  should be replaced with Baldor motors now and/or
  at failure.

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Review Data
Click reports button
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Review Data - Summary
Click reports button
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Review Data - Detailed
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What happens if we add a ASD to the Chiller Pump?
2nd - Click on the ASD checkbox
1st - High light the chiller pump motor
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Complete application information for the Chiller
Pump?
1) Select pump and control mechanism
2) Enter ASD costs
Adjust load profile if necessary
3) Click OK
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What happened? Recalculate

• Payback months drop by 78
• Standard E saving improve by 14,359
• Super E saving improve by 14,051
• A great deal for the customer

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Thank you for viewing this PowerPoint
presentation of the BET Energy Saving Tool
version 3.0
For additional BET program information contact
your local Baldor sales representative or
contact us via email at bestsupport_at_baldor.com.
Sincerely, Baldor Electric Company