Conducting An Energy Analysis
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Transcript of Conducting An Energy Analysis
Conducting AnEnergy Analysis
Professional Energy Analysis – Summary
Energy Analysis Preliminaries
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EA – Preliminaries
MS Word Files can be
downloaded
to the HP49+
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Transfer Algorithms
EA –Preliminaries
nipuna (Sanskrit): skilled, capable of, kind or friendly towards
greengurus
“Nipuna”
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Program with
Energy
equations as MS Word Files
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EA –Preliminaries
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EA –Preliminaries
nipuna (Sanskrit): skilled, capable of, kind or friendly towards
EA –Preliminaries
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nipuna (Sanskrit): skilled, capable of, kind or friendly towards
HP 49+Solves
Series of multiple
equations
with a few keystrokes
EA –Preliminaries
nipuna (Sanskrit): skilled, capable of, kind or friendly towards
EA –Preliminaries
nipuna (Sanskrit): skilled, capable of, kind or friendly towards
Identify Layout of facility
Operating Schedule
Compile an Equipment List.
Establish Geographic Location/Degree Days/Weather Data.
EA –Preliminaries
Gathering the data for analysis
Analysis of Bills:
Know the rate structure in effect for the facility.
Separate energy bills into their components.E.g. demand charge and energy charges
for the electric bill.
EA –Preliminaries
Gathering the data for analysis
EA –Preliminaries
Gathering the data for analysis
EA –Preliminaries
Gathering the data for analysis
Get Equipment List before
conducting the audit
EA –Preliminaries
Gathering the data for analysis
EA –Preliminaries
Gathering the data for analysis
EA –Preliminaries
Gathering the data for analysis
Initial Walk-through Tour
Introductory Meeting
Audit leader should meet with the - facility manager and the
- maintenance supervisor.
EA – Preliminaries
Audit Interviews
- facility manager
- finance officer
- floor supervisors and equipment operators
-maintenance supervisor and staff
Initial Walk-through Tour
EA – Preliminaries
Initial Walk-through Tour
EA –Preliminaries
Get the tools together
Infrared Thermometer
(must know emissivity)
EA – Audit Preliminaries
Initial Walk-through Tour
Light Meter
Parts of facility might be over- or
under-lighted
EA – Audit Preliminaries
Initial Walk-through Tour
Digital Snap-Around Volt-Ohm-Ammeter
EA – Audit Preliminaries
Initial Walk-through Tour
HVAC Combo Kit
EA – Audit Preliminaries
Initial Walk-through Tour
Power Factor Meter
EA – Audit Preliminaries
Initial Walk-through Tour
Ultrasonic Leak Detector
Valuable for testing steam
traps
EA – Audit Preliminaries
Initial Walk-through Tour
Air VelocityMeasurement
Anemometers
Rotating Vane
Pitot Tube
Hot Wire
EA – Audit Preliminaries
Initial Walk-through Tour
Blower Door
To determine the air leakage
rate
EA – Audit Preliminaries
Initial Walk-through Tour
Combustion Analyzer
EA – Audit Preliminaries
Initial Walk-through Tour
Manometers
EA – Audit Preliminaries
Initial Walk-through Tour
EA – Audit Preliminaries
Initial Walk-through Tour
Lighting Inventory:
- light fixtures- lamp types, sizes and numbers- levels of illumination- uses of task lighting
Initial Walk-through Tour
Lighting Inventory
Initial Walk-through Tour
Lighting Inventory
Initial Walk-through Tour
Lighting Inventory
Initial Walk-through Tour
Building Envelope
Initial Walk-through Tour
Building Envelope
Initial Walk-through Tour
EA – Audit Preliminaries
Building Envelope
Initial Walk-through Tour
Boiler and Steam DistributionAge?
Combustion Efficiency
Btu/h Rating
AFUE
Pressures
Temperatures
Boiler Tune-up?
Initial Walk-through Tour
Initial Walk-through Tour
Boiler and Steam Distribution
Look for leaks!
Steam Traps!
HVAC System
Inspect:
Evaporator
Condenser
Filters.
kW/Ton Rating
EER, SEER
Initial Walk-through Tour
Fans and Blowers
HVAC System
Initial Walk-through Tour
Motors
Measure:
Voltage
Current
Power Factor
Note:
Horse Power,
Load Factor
Fan and Blower Electric Motor — 1/2 HP
Reversible Electric Motor — 5 HP, 1740 RPM
Initial Walk-through Tour
Motors
Variable Speed
Drives
Initial Walk-through Tour
Hot Water Distribution System
Initial Walk-through Tour
Energy Audit
Special Topics
Codes and
Standards
Codes and Standards
Codes and Standards
FERC
Codes and Standards
FERC
Codes and Standards
Natural Gas
?
Codes and Standards
ASHRAE Standard 90.1 – 2001
Codes and Standards
Codes and Standards
Indoor Air Quality
Codes and Standards
*1000 Btu/ft2/year
Rate Structures and
Energy Bills
Rate Structures and Energy Bills
Electric
Power Flow
Rate Structures and Energy Bills
FERC orders 888 and 889
Electric
Deregulation
Rate Structures and Energy Bills
Electric
Energy vs.
Demand
Rate Structures and Energy Bills
Electric: Energy vs. Demand
Large Quantities of Electricity cannot be stored
Rate Structures and Energy Bills
Electric
Components of Bill
Rate Structures and Energy Bills
Electric
Sample Rate Structue
Rate Structures and Energy Bills
Electric
Sample Rate Structue
Rate Structures and Energy Bills
Electric
Power Factor
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“Nipuna” Program with
Electrical
equations as MS Word File
Rate Structures and Energy Bills
Electric
Power Factor
Rate Structures and Energy Bills
Electric
Special Rates
Rate Structures and Energy Bills
Electric
Special Rates
Natural Gas
Interruptible Rates
Highest Priority Customers pay more but will not be interrupted at times of high demand
Rate Structures and Energy Bills
Monthly Bill Analysis
Profile for a metal products company in Florida
Look for red flags
Monthly Bill Analysis
Energy Balance
Monthly Bill Analysis
Demand Balance
Monthly Bill Analysis
Look for red flags
Monthly Bill Analysis
Look for particularities
Monthly Bill Analysis
Life Cycle Costing
Life Cycle Costing
Example: Choice between two Compressors
Typical Life Cycle Example
Life Cycle Costing
Typical Life Cycle Example
greengurus
“Nipuna” Program with
Eco-nomics
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Life Cycle Costing