Mechanical Insulation Appraisal · Preliminary Report

Minnesota Veterans Home - Tunnel

Engineered findings from a NAIMA 3E Plus walk-down assessment. 72 items inventoried across 29 systems · estimated $14,922/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
$14,922/yr
Energy cost reduction from upgrades
Current Operating Cost
$16,271/yr
Inventoried surface annual cost
Upgraded Operating Cost
$1,350/yr
After insulation improvements
Cost Reduction
91.7%
Operating cost decrease
Heat Flow Reduction
2,011,455kBtu/yr
2,011.5 MMBtu/yr saved
CO₂ Reduction
118.13MT/yr
Metric tons per year
NOₓ Reduction
522.6lbs/yr
Pounds per year
Items Assessed
72items
Across 29 systems
Annual Operating Cost Comparison
Current (As-Found)
$16,271
per year
After Upgrade
$1,350
per year

Upgrading the insulation on the 72 identified items would result in estimated annual energy cost savings of $14,922/yr, a reduction in heat flow of 2,011,455 kBtu/yr, a reduction in CO₂ emissions of 118.13 MT/yr, and a reduction in NOₓ emissions of 522.6 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
$74,610
Cumulative cost avoidance
5-Year Heat Flow Saved
10,058MMBtu
Cumulative thermal savings
5-Year CO₂ Avoided
590.7MT
Equivalent to ~25 cars off the road/yr
Environmental Impact

Emissions reductions achieved through insulation upgrades.

CO₂ Reduction
118.13MT/yr
Metric tons carbon dioxide
NOₓ Reduction
522.6lbs/yr
Pounds nitrogen oxides
Equivalent Cars Removed
~25/yr
Based on avg 4.6 MT CO₂/car/yr
Heat Flow Saved
2,011.5MMBtu/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 034

Pipe · Hot water storage · Ref: 105140
Infrared
IR: Ref 105140 - IR
Ref 105140 - IR
Visible
VIS: Ref 105140 - VIS
Ref 105140 - VIS

VA 034

Pipe · Hot water storage · Ref: 104954
Infrared
IR: Ref 104954 - IR
Ref 104954 - IR

VA 035

Pipe · Hot water storage · Ref: 105851
Infrared
IR: Ref 105851 - IR
Ref 105851 - IR
Visible
VIS: Ref 105851 - VIS
Ref 105851 - VIS

VA 035

Pipe · Hot water storage · Ref: 105905
Infrared
IR: Ref 105905 - IR
Ref 105905 - IR
Visible
VIS: Ref 105905 - VIS
Ref 105905 - VIS

VA 035

Pipe · Hot water storage · Ref: 105931
Infrared
IR: Ref 105931 - IR
Ref 105931 - IR
Visible
VIS: Ref 105931 - VIS
Ref 105931 - VIS

VA 036

Valve & Bonnet · Lower tunnel · Ref: 121349
Infrared
IR: Ref 121349 - IR
Ref 121349 - IR
Visible
VIS: Ref 121349 - VIS
Ref 121349 - VIS

VA 037

Valve & Bonnet · Lower tunnel · Ref: 121932
Infrared
IR: Ref 121932 - IR
Ref 121932 - IR
Visible
VIS: Ref 121932 - VIS
Ref 121932 - VIS

VA 038

Stream Trap · Lower tunnel · Ref: 122423
Infrared
IR: Ref 122423 - IR
Ref 122423 - IR
Visible
VIS: Ref 122423 - VIS
Ref 122423 - VIS

VA 039

Pipe · Lower tunnel · Ref: 122622
Infrared
IR: Ref 122622 - IR
Ref 122622 - IR
Visible
VIS: Ref 122622 - VIS
Ref 122622 - VIS

VA 040

Pipe · Lower tunnel · Ref: 122705
Infrared
IR: Ref 122705 - IR
Ref 122705 - IR
Visible
VIS: Ref 122705 - VIS
Ref 122705 - VIS

VA 041

Pipe · Lower tunnel · Ref: 124134
Infrared
IR: Ref 124134 - IR
Ref 124134 - IR
Visible
VIS: Ref 124134 - VIS
Ref 124134 - VIS

VA 042

Pipe · Lower tunnel · Ref: 124252
Infrared
IR: Ref 124252 - IR
Ref 124252 - IR
Visible
VIS: Ref 124252 - VIS
Ref 124252 - VIS

VA 043

Pipe · Lower tunnel · Ref: 124501
Infrared
IR: Ref 124501 - IR
Ref 124501 - IR
Visible
VIS: Ref 124501 - VIS
Ref 124501 - VIS

VA 044

Pipe · Lower tunnel · Ref: 124929
Infrared
IR: Ref 124929 - IR
Ref 124929 - IR
Visible
VIS: Ref 124929 - VIS
Ref 124929 - VIS

VA 044

Pipe · Lower tunnel · Ref: 124855
Infrared
IR: Ref 124855 - IR
Ref 124855 - IR
Visible
VIS: Ref 124855 - VIS
Ref 124855 - VIS

VA 045

Pipe · · Ref: 125713
Infrared
IR: Ref 125713 - IR
Ref 125713 - IR
Visible
VIS: Ref 125713 - VIS
Ref 125713 - VIS

VA 046

Pipe · Lower tunnel · Ref: 125818
Infrared
IR: Ref 125818 - IR
Ref 125818 - IR
Visible
VIS: Ref 125818 - VIS
Ref 125818 - VIS

VA 047

Pipe · · Ref: 130816
Infrared
IR: Ref 130816 - IR
Ref 130816 - IR
Visible
VIS: Ref 130816 - VIS
Ref 130816 - VIS

VA 077

Pipe · North tunnel · Ref: 93416
Infrared
IR: Ref 93416 - IR
Ref 93416 - IR
Visible
VIS: Ref 93416 - VIS
Ref 93416 - VIS

VA 078

Pipe · North tunnel · Ref: 93821
Infrared
IR: Ref 93821 - IR
Ref 93821 - IR
Visible
VIS: Ref 93821 - VIS
Ref 93821 - VIS

VA 079

Pipe · North tunnel · Ref: 094035
Infrared
IR: Ref 094035 - IR
Ref 094035 - IR
Visible
VIS: Ref 094035 - VIS
Ref 094035 - VIS

VA 080

Pipe · Lower/ Ground Level · Ref: 094823
Infrared
IR: Ref 094823 - IR
Ref 094823 - IR
Visible
VIS: Ref 094823 - VIS
Ref 094823 - VIS

VA 080

Pipe · Lower/ Ground Level · Ref: 094308
Infrared
IR: Ref 094308 - IR
Ref 094308 - IR
Visible
VIS: Ref 094308 - VIS
Ref 094308 - VIS

VA 081

Valve & Bonnet · Lower/ Ground Level · Ref: 094549
Infrared
IR: Ref 094549 - IR
Ref 094549 - IR
Visible
VIS: Ref 094549 - VIS
Ref 094549 - VIS

VA 082

Pipe · South tunnel · Ref: 095654
Infrared
IR: Ref 095654 - IR
Ref 095654 - IR
Visible
VIS: Ref 095654 - VIS
Ref 095654 - VIS

VA 082

Pipe · South tunnel · Ref: 095824
Infrared
IR: Ref 095824 - IR
Ref 095824 - IR
Visible
VIS: Ref 095824 - VIS
Ref 095824 - VIS

VA 082

Pipe · South tunnel · Ref: 095853
Infrared
IR: Ref 095853 - IR
Ref 095853 - IR
Visible
VIS: Ref 095853 - VIS
Ref 095853 - VIS

VA 083

Steam trap · South tunnel · Ref: 100336
Infrared
IR: Ref 100336 - IR
Ref 100336 - IR
Visible
VIS: Ref 100336 - VIS
Ref 100336 - VIS

VA 083

Steam trap · South tunnel · Ref: 100315
Infrared
IR: Ref 100315 - IR
Ref 100315 - IR
Visible
VIS: Ref 100315 - VIS
Ref 100315 - VIS

VA 083

Steam trap · South tunnel · Ref: 100253
Infrared
IR: Ref 100253 - IR
Ref 100253 - IR
Visible
VIS: Ref 100253 - VIS
Ref 100253 - VIS

VA 083

Steam trap · South tunnel · Ref: 100242
Infrared
IR: Ref 100242 - IR
Ref 100242 - IR
Visible
VIS: Ref 100242 - VIS
Ref 100242 - VIS

VA 084

Condensate box · South tunnel · Ref: 100624
Infrared
IR: Ref 100624 - IR
Ref 100624 - IR
Visible
VIS: Ref 100624 - VIS
Ref 100624 - VIS

VA 085

Pipe · South tunnel · Ref: 100942
Infrared
IR: Ref 100942 - IR
Ref 100942 - IR
Visible
VIS: Ref 100942 - VIS
Ref 100942 - VIS

VA 091

Pipe · South tunnel · Ref: 103846
Infrared
IR: Ref 103846 - IR
Ref 103846 - IR
Visible
VIS: Ref 103846 - VIS
Ref 103846 - VIS

VA 091

Pipe · South tunnel · Ref: 104157
Infrared
IR: Ref 104157 - IR
Ref 104157 - IR
Visible
VIS: Ref 104157 - VIS
Ref 104157 - VIS

VA 091

Pipe · South tunnel · Ref: 104124
Infrared
IR: Ref 104124 - IR
Ref 104124 - IR
Visible
VIS: Ref 104124 - VIS
Ref 104124 - VIS

VA 091

Pipe · South tunnel · Ref: 104418
Infrared
IR: Ref 104418 - IR
Ref 104418 - IR

VA 096

Pipe · South tunnel · Ref: 110132
Infrared
IR: Ref 110132 - IR
Ref 110132 - IR
Visible
VIS: Ref 110132 - VIS
Ref 110132 - VIS

VA 096

Pipe · South tunnel · Ref: 110013
Infrared
IR: Ref 110013 - IR
Ref 110013 - IR
Visible
VIS: Ref 110013 - VIS
Ref 110013 - VIS

VA 099

Steam trap · South tunnel · Ref: 112110
Infrared
IR: Ref 112110 - IR
Ref 112110 - IR
Visible
VIS: Ref 112110 - VIS
Ref 112110 - VIS

VA 099

Steam trap · South tunnel · Ref: 112347
Infrared
IR: Ref 112347 - IR
Ref 112347 - IR
Visible
VIS: Ref 112347 - VIS
Ref 112347 - VIS

VA 100

Pipe · South tunnel · Ref: 112659
Infrared
IR: Ref 112659 - IR
Ref 112659 - IR
Visible
VIS: Ref 112659 - VIS
Ref 112659 - VIS

VA 100

Pipe · South tunnel · Ref: 112739
Infrared
IR: Ref 112739 - IR
Ref 112739 - IR
Visible
VIS: Ref 112739 - VIS
Ref 112739 - VIS

VA 100

Pipe · South tunnel · Ref: 112831
Infrared
IR: Ref 112831 - IR
Ref 112831 - IR
Visible
VIS: Ref 112831 - VIS
Ref 112831 - VIS

VA 101

Condensate box · South tunnel · Ref: 113254
Infrared
IR: Ref 113254 - IR
Ref 113254 - IR
Visible
VIS: Ref 113254 - VIS
Ref 113254 - VIS

VA 102

Pipe · South tunnel · Ref: 113655
Infrared
IR: Ref 113655 - IR
Ref 113655 - IR
Visible
VIS: Ref 113655 - VIS
Ref 113655 - VIS

VA 102

Pipe · South tunnel · Ref: 113730
Infrared
IR: Ref 113730 - IR
Ref 113730 - IR
Visible
VIS: Ref 113730 - VIS
Ref 113730 - 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.