Mechanical Insulation Appraisal · Preliminary Report

Minnesota Veterans Home - Bldg. 15

Engineered findings from a NAIMA 3E Plus walk-down assessment. 15 items inventoried across 3 systems · estimated $1,642/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
$1,642/yr
Energy cost reduction from upgrades
Current Operating Cost
$1,794/yr
Inventoried surface annual cost
Upgraded Operating Cost
$152/yr
After insulation improvements
Cost Reduction
91.5%
Operating cost decrease
Heat Flow Reduction
221,339kBtu/yr
221.3 MMBtu/yr saved
CO₂ Reduction
13.00MT/yr
Metric tons per year
NOₓ Reduction
57.5lbs/yr
Pounds per year
Items Assessed
15items
Across 3 systems
Annual Operating Cost Comparison
Current (As-Found)
$1,794
per year
After Upgrade
$152
per year

Upgrading the insulation on the 15 identified items would result in estimated annual energy cost savings of $1,642/yr, a reduction in heat flow of 221,339 kBtu/yr, a reduction in CO₂ emissions of 13.00 MT/yr, and a reduction in NOₓ emissions of 57.5 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
$8,210
Cumulative cost avoidance
5-Year Heat Flow Saved
1,106MMBtu
Cumulative thermal savings
5-Year CO₂ Avoided
65.0MT
Equivalent to ~2 cars off the road/yr
Environmental Impact

Emissions reductions achieved through insulation upgrades.

CO₂ Reduction
13.00MT/yr
Metric tons carbon dioxide
NOₓ Reduction
57.5lbs/yr
Pounds nitrogen oxides
Equivalent Cars Removed
~2/yr
Based on avg 4.6 MT CO₂/car/yr
Heat Flow Saved
221.3MMBtu/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.

VA 067

Valve & Bonnet · · Ref: 081526
Infrared
IR: Ref 081526 - IR
Ref 081526 - IR
Visible
VIS: Ref 081526 - VIS
Ref 081526 - VIS

VA 067

Valve & Bonnet · · Ref: 081733
Infrared
IR: Ref 081733 - IR
Ref 081733 - IR
Visible
VIS: Ref 081733 - VIS
Ref 081733 - VIS

VA 068

Steam trap · · Ref: 082357
Infrared
IR: Ref 082357 - IR
Ref 082357 - IR
Visible
VIS: Ref 082357 - VIS
Ref 082357 - VIS

VA 068

Steam trap · · Ref: 082603
Infrared
IR: Ref 082603 - IR
Ref 082603 - IR
Visible
VIS: Ref 082603 - VIS
Ref 082603 - VIS

VA 068

Steam trap · · Ref: 082720
Infrared
IR: Ref 082720 - IR
Ref 082720 - IR
Visible
VIS: Ref 082720 - VIS
Ref 082720 - VIS

VA 069

Pipe · · Ref: 81705
Infrared
IR: Ref 81705 - IR
Ref 81705 - IR
Visible
VIS: Ref 81705 - VIS
Ref 81705 - VIS
Parameters & Methodology

Project-specific inputs and calculation methodology.

Project Parameters
Boiler Efficiency90%
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.