GENERAL OBSERVATIONS FROM THE PHES EVALUATIONS TO DATE AVERAGE ANNUAL PROPANE USE

Transcription

1 GENERAL OBSERVATIONS FROM THE PHES EVALUATIONS TO DATE June 18, 2009 AVERAGE ANNUAL PROPANE USE 1

2 AVERAGE ANNUAL ELECTRICITY USE THERMAL IMAGING 2

3 Overview of the improvement options recommended Note: Estimated savings will vary from farm to farm and, because of interactions, are not necessarily cumulative. Item Estimated cost Estimated savings Payback (years) Insulate sidewall curtain $4, gal 2.5 Insulate ceiling $2, gal 3.1 Add attic inlets $1, gal 1.5 Tunnel inlet doors $5, gal 5.8 Mixing i fans $ gal Radiant tube heaters $7, gal 7.0 Cold cathode lights $1,000 11,000 kwh 0.8 Close and insulate sidewall curtains 3 ½ inch fiberglass + plastic + blandex Therm All fiberglass blanket w/reinforced backing Save 600 to 1000 gal LP/house/yr Payback 2 to 4 yrs Trade and brand names are used for information only and does not imply approval of any product to the exclusion of others that may be suitable 3

4 SIDEWALL CURTAINS SIDEWALL CURTAINS 4

5 SOLID SIDEWALLS END DOORS A. Thermal image of a poorly sealed end door B. Thermal image of a well sealed end door 5

6 Thermal Images End Wall Cold air is leaking along the top of the door Cold air is leaking along the ceiling line at the end wall Air Leaks Foundation & Wall Cold air is leaking into the barn through a hole in the wall covering Cold air is leaking under the Cold air is leaking under the frame wall at the top of a concrete foundation 6

7 Overview of the improvement options recommended Note: Estimated savings will vary from farm to farm and, because of interactions, are not necessarily cumulative. Item Estimated cost Estimated savings Payback (years) Insulate sidewall curtain $4, gal 2.5 Insulate ceiling $2, gal 3.1 Add attic inlets $1, gal 1.5 Tunnel inlet doors $5, gal 5.8 Mixing i fans $ gal Radiant tube heaters $7, gal 7.0 Cold cathode lights $1,000 11,000 kwh 0.8 ATTIC INSULATION Most barns 2 to 4 inches Could add 3 to 6 inches Save 300 to 600 gal LP/house/year Payback 2.5 to 5 years 7

8 ATTIC INSULATION ATTIC INSULATION 8

9 ATTIC INSULATION Overview of the improvement options recommended Note: Estimated savings will vary from farm to farm and, because of interactions, are not necessarily cumulative. Item Estimated cost Estimated savings Payback (years) Insulate sidewall curtain $4, gal 2.5 Insulate ceiling $2, gal 3.1 Add attic inlets $1, gal 1.5 Tunnel inlet doors $5, gal 5.8 Mixing i fans $ gal Radiant tube heaters $7, gal 7.0 Cold cathode lights $1,000 11,000 kwh 0.8 9

10 ATTIC INLETS Capture solar heat from the attic Save 400 to 800 gal LP/house/yr Gravity Inlets Need tight house Management (open/close) issues Payback 2 to 4 years Controlled (winch and static pressure) inlets House tightness not as critical Some more energy savings possible Payback 5 to 10 years ATTIC INLETS Winch controlled Static pressure operated Gravity operated Counterweighted 10

11 Overview of the improvement options recommended Note: Estimated savings will vary from farm to farm and, because of interactions, are not necessarily cumulative. Item Estimated cost Estimated savings Payback (years) Insulate sidewall curtain $4, gal 2.5 Insulate ceiling $2, gal 3.1 Add attic inlets $1, gal 1.5 Tunnel inlet doors $5, gal 5.8 Mixing i fans $ gal Radiant tube heaters $7, gal 7.0 Cold cathode lights $1,000 11,000 kwh 0.8 Thermal Images -Tunnel Inlets Tunnel Inlet Leakage Air Leakage at the top of the tunnel inlet curtain 11

12 INSTALLING TUNNEL DOORS A. Thermal image of poorly sealed tunnel inlets B. Thermal image of a well sealed tunnel doors TUNNEL DOORS Insulated tunnel doors Save 400 to 600 gal LP/house/yr Payback 5 to 8 years 12

13 Overview of the improvement options recommended Note: Estimated savings will vary from farm to farm and, because of interactions, are not necessarily cumulative. Item Estimated cost Estimated savings Payback (years) Insulate sidewall curtain $4, gal 2.5 Insulate ceiling $2, gal 3.1 Add attic inlets $1, gal 1.5 Tunnel inlet doors $5, gal 5.8 Mixing i fans $ gal Radiant tube heaters $7, gal 7.0 Cold cathode lights $1,000 11,000 kwh 0.8 MIXING FANS 13

14 MIXING FANS Most helpful in leaky houses Save 100 gal LP/house/yr Payback 2 to 4years Overview of the improvement options recommended Note: Estimated savings will vary from farm to farm and, because of interactions, are not necessarily cumulative. Item Estimated cost Estimated savings Payback (years) Insulate sidewall curtain $4, gal 2.5 Insulate ceiling $2, gal 3.1 Add attic inlets $1, gal 1.5 Tunnel inlet doors $5, gal 5.8 Mixing i fans $ gal Radiant tube heaters $7, gal 7.0 Cold cathode lights $1,000 11,000 kwh

15 HEATING SYSTEMS HEATING SYSTEMS Radiant tube or Quad heaters Fewer units to maintain Save energy if house air temperature is lowered Save 300 to 600 gal LP/house/yr Payback 6 to 10 years 15

16 Overview of the improvement options recommended Note: Estimated savings will vary from farm to farm and, because of interactions, are not necessarily cumulative. Item Estimated cost Estimated savings Payback (years) Insulate sidewall curtain $4, gal 2.5 Insulate ceiling $2, gal 3.1 Add attic inlets $1, gal 1.5 Tunnel inlet doors $5, gal 5.8 Mixing i fans $ gal Radiant tube heaters $7, gal 7.0 Cold cathode lights $1,000 11,000 kwh 0.8 RECOMMENDATIONS RELATED TO LIGHTING Change from incandescent lights to cold cathode or compact fluorescents 16

17 LIGHTING Replace Incandescent bulbs CFLs &/or Dimmable Cold Cathode Do 8 W CC bulbs provide enough light? May need to add some fixtures Save 8,000 to 12,000 kwh/house/yr (full house replacement) Payback <1 to 2 years RECOMMENDATIONS RELATED TO LIGHTING Keep light bulbs clean 17

18 VENTILATION 36-inch Fans Fan Airflow, CFM Approx CFM Operating range Static Pressure 18

19 Tunnel Fans Air flow (CFM) 25,000 20, ,000 10,000 5, Static Pressure (inches of water) Farm 1, Fan 1 Farm 1, Fan 2 Farm 2, Fan 1 Farm 2, Fan 2 Farm 2, Fan 3 Farm 3, Fan 1 Farm 3, Fan 2 Farm 3, Fan 3 Farm 3, Fan 4 Farm 3, Fan 5 Farm 4, Fan 1 48-inch Fans 25,000 20, Air flow (CFM) 15,000 10,000 5,000 Farm 3, Fan 1 Farm 3, Fan 2 Farm 3, Fan 3 Farm 3, Fan 4 Farm 3, Fan Static Pressure (inches of water) 19

20 50-inch Fans 25,000 Farm 1, Fan 1 Farm 1, Fan 2 Airflow (CFM) 20, ,000 10,000 5,000 Farm 1, Fan 3 Farm 1, Fan 4 Farm 1, Fan 5 Farm 2, Fan 2 Farm 2, Fan 3 Farm 2, Fan 4 Farm 2, Fan Static Pressure (inches of water) 50-inch Fans with and without a cones 25,000 20, w/cone Farm 1, Fan 1 Farm 1, Fan 2 Air flow (CFM) 15,000 10,000 5, Static Pressure (inches of water) 20

21 Comparisons with BESS data Reduced fan performance C k ll i Cracks allow air to leak back into the barn 21

22 Worn Pulleys & Belts Worn Pulleys & Belts 22

23 Keeping fans clean 20,000 18,000 Clean Dirty 16,000 Airflow (CFM) 14,000 12,000 10,000 8,000 6,000 4, Static Pressure (inches of water) Shutter maintenance 23

24 Worn Pulleys & Belts Average house tightness of the 14 farms participating in the PHES evaluations (Values determined with a single tunnel fan running) 24

25 Average air leakage at 0.1 inches SP for 12 of the 14 farms participating in the PHES evaluations AVERAGE AIR SPEED MEASURED AT BROILER LEVEL WITH ALL TUNNEL FANS RUNNING (Measured 75.5 ft upstream from tunnel fans) 25

26 ELECTRICAL Services not overloaded Building loads below 75 A Some voltage drops more than 5% (20 25 V) Voltage at fans OK (> 215) Few overheated components ELECTRICAL Thermal image showing overheating in a breaker due to a poor contact Thermal image showing overheating due to a poor relay connection 26

27 ELECTRICAL Overheated Motor Main Breaker & lugs 35 F degrees air temperature CONTROLS Fan Thermostat 27

28 HOW POULTRY HOUSES LOOSE HEAT Building Envelope (structure or shell) Ventilation Approx 50% each Don t be over sold!! 28