Mechanical Insulation Appraisal · Preliminary Report

Minnesota Veteran's Home - Bldg 4

Engineered findings from a NAIMA 3E Plus walk-down assessment. 4 items inventoried across 2 systems · estimated $924/yr in recoverable operating cost.

Executive Summary

Overview of identified insulation upgrade opportunities and projected annual savings. This is a Preliminary Report. Please see the 'Line Item Detail' Page for detailed information about each item assessed along with Infrared Imaging. Your EEQA representative will now solicit bids from our Qualified Contractors. Please allow 4-6 weeks for the bidding to complete. Your EEQA representative will then submit to you a Final Report upon it's completion. All completed upgrades will have a Quality Control visit to ensure the Mechanical Insulation was installed in accordance with specifications.

Estimated Annual Savings
$924/yr
Energy cost reduction from upgrades
Current Operating Cost
$1,045/yr
Inventoried surface annual cost
Upgraded Operating Cost
$121/yr
After insulation improvements
Cost Reduction
88.4%
Operating cost decrease
Heat Flow Reduction
110,714kBtu/yr
110.7 MMBtu/yr saved
CO₂ Reduction
7.31MT/yr
Metric tons per year
NOₓ Reduction
32.4lbs/yr
Pounds per year
Items Assessed
4items
Across 2 systems
Annual Operating Cost Comparison
Current (As-Found)
$1,045
per year
→
After Upgrade
$121
per year

Upgrading the insulation on the 4 identified items would result in estimated annual energy cost savings of $924/yr, a reduction in heat flow of 110,714 kBtu/yr, a reduction in CO₂ emissions of 7.31 MT/yr, and a reduction in NOₓ emissions of 32.4 lbs/yr. All calculations were performed using the NAIMA 3E Plus (version 5.1) computer program.

Savings Analysis

Energy cost savings by system area, ranked by annual impact.

Annual Energy Cost Savings by System
5-Year Projected Savings
5-Year Energy Savings
$4,620
Cumulative cost avoidance
5-Year Heat Flow Saved
554MMBtu
Cumulative thermal savings
5-Year CO₂ Avoided
36.6MT
Equivalent to ~1 cars off the road/yr
Environmental Impact

Emissions reductions achieved through insulation upgrades.

CO₂ Reduction
7.31MT/yr
Metric tons carbon dioxide
NOₓ Reduction
32.4lbs/yr
Pounds nitrogen oxides
Equivalent Cars Removed
~1/yr
Based on avg 4.6 MT CO₂/car/yr
Heat Flow Saved
110.7MMBtu/yr
Thermal energy conserved
CO₂ Reduction by System
System Breakdown

Summary of each system/equipment group.

SystemItemsCurrent $/yrUpgraded $/yrSavings $/yrHeat kBtu/yrCO₂ MT/yrNOₓ lbs/yr
Line-Item Detail

Complete per-item inventory with specifications and savings. Click the Item Description to view Thermal Images.

#DescriptionPipeQtyTemp °FInv. Ins.Upg. Ins.Inv ThkUpg ThkCurrent $/yrUpgraded $/yrSavings $/yrHeat kBtu/yrCO₂ MT/yr
Thermal Imaging

Infrared and visible-light photo pairs for each assessed equipment item.

110702

· Mechanical room · Ref: 110702
Infrared
IR: Ref 110702 - IR
Ref 110702 - IR
Visible
VIS: Ref 110702 - VIS
Ref 110702 - VIS

110810

· Mechanical room · Ref: 110810
Infrared
IR: Ref 110810 - IR
Ref 110810 - IR
Visible
VIS: Ref 110810 - VIS
Ref 110810 - VIS

111742

· South tunnel · Ref: 111742
Infrared
IR: Ref 111742 - IR
Ref 111742 - IR
Parameters & Methodology

Project-specific inputs and calculation methodology.

Project Parameters
Boiler Efficiency80%
Hours of Operation8,760 hrs/yr
Ambient Temperature75 °F
Wind Speed0 mph
Fuel TypeNatural Gas
Fuel Cost$6.85/Mcf

Calculation Engine

All calculations performed using NAIMA 3E Plus (v5.1), based on ASTM C680 methodology.

Inventoried Condition

Each item assessed in as-found condition. Bare surfaces have no insulation present.

Upgraded Specification

Recommended upgrades include fiberglass, cellular foam, elastomeric, and ceramic fibre materials.

Emissions Methodology

CO₂ and NOₓ calculated using EPA fuel-specific emission factors applied to energy saved.