Download - Baldor BE$T Features

7/30/2019 Baldor BE$T Features

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Baldor Energy Savings Tool

Version 3.0


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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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BE$T 3.0 - Agenda

1. Saving Energy

2. Program Basics

3. Example problems


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Part ISaving Energy

You save energy by improving the overall efficiency of thedriven system. There are many energy wasters within agiven system, but one component that should always bechecked is the power input side or the electric motor.

The BE$T program concentrates on improving the power inputof the system. BE$T calculates the estimated energy thatcan be saved by using Premium Efficient motors and driveswhere applicable. Payback periods for motor efficiencyupgrades are calculated and motor replacement timetablesare 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 = 7460Watts

Efficiency = Power Out / Power In

Efficiency = 7460 / 8025

Efficiency = .930 or 93.0%


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What is Higher Efficiency Worth? Even a4.5 point efficiency gain is important.

40 HP Super-E with

94.5% efficiency

compared to standardmotor with 90% eff.

Operating 50

weeks/year


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BE$TBasic 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 betweenthe curves.

160.21.1

The savings

occurbetween the

curves

Input Power for the Original Motorand the Motor with an ASD

0.0

20.0

40.0

60.0

80.0

100.0

0 20 40 60 80 100

Percent Motor Load

KW

Motor Motor With ASD

Typical

variable

torque Fan

and PumpCurve


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110.8.6

Fan or Pump Load Curve

% SPEED / % FLOW

0%

25%

50%

75%

100%

0% 25% 50% 75% 100%

%

LOAD

%Power ~ Speed3

Why does this work?Variable Torque Pump and Fan Loads use the Affinity Laws,

the required HP is a cubic function of rpm.


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In words, using an adjustable speed drive

saves energy by?

Reducing the speed of a variable torque pump or fansignificantly reduces the energy usage of the drivingmotor.

The why can be summarized by a set of rules called theaffinity rules.

1. Flow produced by the system is proportional to the motorspeed.

2. Pressure produced by the system is proportional to themotor speed squared.

3. Horsepowerrequired by the system is proportional to themotor speed cubed.


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An Example:A adjustable speed drive (ASD) running a variabletorque 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, butmay use one for convenience.

If you have a variable torque system.

Look at the typical operating points or load profile of the systemthroughout the day to see if the system could benefit from a drive.

The load profile determines the amount of energy savings that ispossible.

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

0% 5% 10% 15% 20% 25%

30%

40%

50%

60%

70%

80%

90%

100%

Time Fraction at Load

PercentRa

tedFlow

High Operating Hours At Low Loads


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Load Profile - Poor ASD Candidate

0% 5% 10% 15% 20% 25% 30%

30%

40%

50%

60%

70%

80%

90%

100%


PercentRated

Flow

Consistent High Loads


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Load Profile - Average ASD Candidate

0% 5% 10% 15% 20% 25%

30%

40%

50%

60%

70%

80%

90%

100%


PercentRatedFlo

Moderate Operating Hours At Moderate Loads


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Part II

Program Basics & Many New Features


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BE$TMain Screen

Single Motor View

Inputs Preferences/Views Alternatives

Select single motor view here.


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BE$TMultiple Motors ViewToggle Buttons

Multiple motor

buttons


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1st Set the Preferences & Global Settings

Global

Settings


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Explore the MenuProjects 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.

DropdownChoices


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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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BE$TBuilt 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

Selected

Motors

Payback

Search Aid

Energy

Used


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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 aPremium Efficiency Motor by Reduced EnergyConsumption

((Baldor Motor Cost Replace/Repair CostRebates) / Annual Energy Savings) * 12

Much Simpler to Determine Than Present ValueAnalysis (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

BE$T sorts motors by

highest efficiency thenlowest 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

calculatethe cost of

the entire

project.


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Project Cost Analysis Results

Standard ReportsRaw Data Custom Report

Summarized Project Data

E l E h i R D


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Excel Export showing Raw Datacan be importedas a new project


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Excel Export Custom Report Template, can add acustomer 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

ExistingASD?

Edit Load

ProfileAdd ASD

costs

Lastly click the

OK button

To see the ASD graph 1st click on Instant Cost


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To see the ASD graph, 1 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 aformal policy for the repair and replacement of existingmotors. These are the:

Repair/Replace HP breakpoint

Repair/New Price Ratio

Payback Months

Policies are best established before a failure. Beingprepared for and knowing what to do is a critical partof 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

New Features in BE$T 3 0 G d Affi i L


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New Features in BE$T 3.0 -Gear and Affinity LawCalculators


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New Feature in BE$T 3.0Add Custom Motor

In multiple motor viewclick the add custom

motor button

Fill-in the data for motorand click add motor


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New Feature in BE$T 3.0Use Net Pricing by Multiplier

1) Select view/changeproject multiplier settings

3) Select Net or List Pricing

2) Add the selling multipliers


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New Feature in BE$T 3.0Add Custom Customer Logo

1) On Tools menu SelectImport Custom Logo

2) Locate and Import Logo


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New Feature in BE$T 3.0Add Custom Customer Logo

1) Logo is positioned onworkspace and Excel CustomReport

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 newprojects.


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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 onmultiple motors.2nd Click on global

settings button


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Set preferences and global values

Select Currency

Electric Rate

(cents/kWh)

HZ & HP

Select

Efficiency tables

Enter Default

Motor LoadAdd Motor

Management set

points

Enter values for:

Select the multiple motor view if not


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Select the multiple motor view if not

already selected

Click Multiple

Motor View


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Enter the data

Enter Data

Here

Quantity & Name

Here


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Click here to enter next item

New item button

Complete entering the following items


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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 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

Review Data - Summary


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Review Data Summary

Click reports button

Review Data Detailed


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Review Data - Detailed

What happens if we add a ASD to the


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pp

Chiller Pump?

1st - High light

the chiller

pump motor

2nd - Click on the

ASD checkbox

Complete application information for the Chiller Pump?


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Complete application information for the Chiller Pump?

1) Select

pump and

control

mechanism

2) Enter

ASD costs

3) Click

OK

Adjust load

profile ifnecessary

What happened? Recalculate


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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 BE$T Energy SavingTool version 3.0

Sincerely, Baldor Electric Company

For additional BE$T program information contact yourlocal Baldor sales representative or contact us via email at

[email protected].