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Analytical Validation of Commercial Wood-Burning Stove Performance

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Analytical Validation of Commercial Wood-Burning Stove Performance. By Troy Nietschmann and David Garrett. OBJECTIVES:

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Analytical Validation of Commercial Wood-Burning Stove Performance

By Troy Nietschmann and David Garrett

OBJECTIVES:

1.Determine outside Temperature conditions that this 29.3 kWatt wood-burning stove would maintain an inside equilibrium temperature of 70oF for two unique 2000 sq. foot homes.

2. Determine whether this claim is reasonable.

slide2

Test Homes

Test Home #1

Wood Siding

Test Home #2

Brick Siding

Simple Rectangular 45’x45’ Home

slide3

Problem Setup (Walls and Roof)

INSIDE:

(Tin)= 70oF

h=3

4” Fiberglass Insulation k2=.0107 W/ft*K

1/2” Gypsum Board k1=.052 W/ft*K

2x4” Wood Studs

16” on-center k3=.0366

7/16” Plywood

Sheathing k4=.0168

.05” TYVEK

Homewrap k5=.008

OUTSIDE:

(Tout)= ?

h=20

4” Masonry Bricks k6=.22

or 3/4” Wood Panels k7=.0366

or 1/8” Rubber Shingles (for roof) k8=.04

Aw (total) = 2552 sq. ft. (Walls)

Ar (total) = 2150 sq. ft. (Roof)

qloss

slide4

Problem Setup (Floor)

INSIDE:

(Tin)= 70oF

h=3

3/4” Floor Board k1=.0366 W/ft*K

8” Thick Cement Slab

k1=.335 W/ft*K

Ground Temp:

(Tout)= 40

Ground Constant Surface temp of 70oF

Af (total) = 2000 sq. ft. (Floor)

qloss

slide5

Calculations & Solution

Solve for Outside Temperature!

slide6

Results & Conclusions

Excel Spreadsheet

This claim would

only be true

in FLORIDA!!!

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