prrs fortress ++ positive pressure … fortress ++ positive pressure ventilation design ... 0.05...

PRRSFORTRESS++

POSITIVEPRESSUREVENTILATIONDESIGN

MIDWESTENVIRONMENTALSPECIALISTS,INC.6635NorthRus-cOakCourt

Peoria,IL61614

PH:309-635-6635

Rzimm@ventexperts.com

www.ventexperts.com

++PATENTPENDING

TOFILTERORNOTTOFILTER

•  COSTOFPRRS:$8.00PERPIGPEROUTBREAKPERWEANEDPIG.FINISHINGPERFORMANCENOTCALCULATED.

•  COSTOFFILTERS:$2.00PERPIGOVERLIFEOFBUILDING.

•  HISTORICALLY70%REDUCTIONINOUTBREAKFREQUENCY.

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attic NEGATIVE PRESSUREFiltered inlets for winter or summerFiltered cool cell wall for summerExhaust fans on room wall

fans

cool cell attic POSITIVE PRESSUREFiltered air supply for inlet fansInlet fans on room wallExhaust damper on room wall

filters

inlets

attic PUSH:PULL POSITIVEairflow Filtered air supply for inlet fans

Inlet fans on room wallExhaust fans on room wallInlet fans slightly higher capacity

attic PRRS FORTRESS ++Filtered air supply for inlet fansInlet fans on gablesExhaust damper on room wallpatent pending

attic PRRS FORTRESS ++cool weather vent SEASONAL FILTRATION

Filtered air supply for inlet fansInlet fans and filters in gablesNegative pressure summer vent

warm weather vent patent pending

MAJOR FILTER/VENT DESIGN CONCEPTS

NEGATIVEPRESSUREFILTRATIONCHALLENGES

•  Highenergyconsump-on

•  Requiresextensivecaulkingandsealing•  Mayrequireduplica-ngfilters:winterinletsvscoolcells

•  Backdradofnon-filteredairisamajorproblem

•  Usedbecausemostcurrentfacili-eshavenega-vepressureven-la-on

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NEGATIVEPRESSUREFILTRATIONSIXSOURCESOFBACKDRAFT

INFILTRATION•  Personnelentrance,exit,biosecuritybreach.

•  Buildingmaterialsandmethods.•  Liveanimalentranceandexit.•  Mortalityexits•  Pitpumpoutbackdrad.•  Ven-la-onbackdrad.

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“Doesitmakesensetoinvestinfiltersandintensebiosecurityandthenrelyonatruckloadofcaulktobethekeytosuccess?”

FILTRATIONINNOVATIONSFROMMIDWESTENVIRONMENTAL

•  PRRSBLOCKADE•  ZWALLSYSTEM

•  BIOSECURELOADOUTSYSTEMS

•  BIOSECUREOFFICEANDENTRY

•  PRRSFORTRESS

Nega-vePressureFilteredFarm

An--backdradfanshumersystem

Posi-vepressureairlockloadoutrooms

Simple,effec-veairlockentryforpersonnelandsupplies.

Posi-vepressurefilteredven-la-onsystem.

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MIDWESTENVIRONMENTALSPECIALISTS,INC.WWW.VentExperts.Com

ZWALLSCHEMATIC

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SHUTTER WALL: SIZE OUTLET CALCULATEDFOR AIRFLOW AND BIOSECURITY

MINIMUM VENT FANSCONTINUOUS OPERATION

VENTILATION EXHAUST FANS-STAGED

OLDERPOSITIVEPRESSUREDESIGNS

•  Frequentlyusedinboarstuds•  Commonlyusedasamodifiedtunnelvent

•  Concernwithbuildingdeteriora-on•  Airdistribu-onanduniformityanissue

•  Odenconsideredimprac-calforlargefarms

•  “Push:Pull”systemsfavoredbutcostlyduetodoublenumberoffans

++PATENTPENDING

++WHYNOW?INNOVATIVEDESIGNCONCEPTANDNEWTECHNOLOGYMAKETHE++SYSTEMPRACTICALANDRELIABLE,ESPECIALLYFORFILTEREDBARNS

•  Overpressureven-la-onsystemeliminatesconcernfordeteriora-oninaoc.

•  Newcontroltechnologyallowsmanagingsta-cpressuredifferen-alandairflowaccurately.

•  Panelizedbuildingstructureeliminatesconcernfordeteriora-onofwalls

•  MUNTERSDRIVEvariableoutputfans,highpressurecapability,energyefficiency,lowmaintenance.

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++POSITIVEPRESSURESCHEMATIC

++PATENTPENDING

Building AtticOVERPRESSURE CHAMBER: "high" pressure space

FANS TO PRESSURIZEATTIC WITH COOLED/FILTERED AIR P1

CEILING AIR INLETS OUTLET DAMPEROUTDOOR Adjustible curtain opening UNFILTERED maintains constant room pressure.AIR AT AMBIENT Provides outlet for metabolic TEMPERATURE Ventilation air flows through inlets gasses and moisture.

responding to pressure difference Z WALLT1 P2 T2 between overpressure and room Backdraft shutters

Building Animal living space pressure. prevent pressure drop ROOM PRESSURE "low" pressure space in windy conditions

COOLING AIR FILTER WALL SENSOR: CONTROL FUNCTION:WALL P1: PRESSURE SENSOR, ATTIC OVERPRESSURE STAGES FANS TO MAINTAIN CONSTANT OVERPRESSURE

P2: PRESSURE SENSOR, ROOM PRESSURE STAGES OUTLET DAMPER TO MAINTAIN CONSTANT ROOM PRESSURET1: TEMPERATURE SENSOR, ROOM TEMPERATURE STAGES CEILING INLETS TO REGULATE VOLUME OF VENT AIR ENTERING ROOMT2: TEMPERATURE SENSOR, ROOM TEMPERATURE STAGES ON COOLING OR HEATING AS NEEDED

AIR CHAMBER

COOLEDAIR FILTERED

COOLEDANDFILTERED

GABLEVENTLAYOUT

++PATENTPENDING

GABLE DESIGN: 20' X 154' FARROWING BARN (18) VX51 M Drive Fans Protect insulation (18) FANS Use for 2 gables RO: 56.25 W x 57.75 H from fan draft540 filters Cone OD: 65"

Chamber between filter wall and fans barn endwallfan access stairway must be airtight biosecure. Fan access platform 4' X 110' (size optional)

Indicated by red border. 5' Each 6 filter grid = 75 3/4" x 51 1/4"

Filter wall = 154" tall + stemwall26" fan to pressurize

hallway

Custom trusses to accommodate154" tall filter wall

(30) filter segments, 3 grids each 6 filters high 3 wide540 filters 5'

8' X 70' COOL CELL EACH SIDE OF HALLWAY

Building CL

11/24/2014

PRRSFORTRESS++OPERATIONSCHEMATIC

++PATENTPENDING

COMPONENT1: COMPONENT2: COMPONENT3: COMPONENT4: COMPONENT5:ENVIRONMENTALCONTROL ROOMINLETS ROOMOUTLETS VENTILATIONFANS AIRFILTERS

Regulatesall inletsadjust outletdamper fansmodulateto Allairenteringthe

componentsto tomaintain adjuststo increase/decrease facilityisfiltered

maintaincorrect desiredroom maintaindesired airvolumeto toreduceriskof

ventilationrate temperatureand roomstatic maintainconstant viralinfection

Internetaccessible airquality pressure atticpressure oflivestock

Coolingrunsat

uppercritical

temperature

Inletsopento Increasespeedor

temperature increase openstomaintain ventilationrate

increases ventilationrateto pressureathigher tomaintainconstant

roomon ventilationrate atticpressureand Volumeoffiltered

temperaturerise. airflow airincreasesor

Desiredroom decreasesbased

temperature(DRT) oncapacityof

Inletscloseto Decreasespeedor ventilationfans

temperature decrease closestomaintain ventilationrate

decreases ventilationrateto pressureatlower tomaintainconstant

roomon ventilationrate atticpressureand

temperaturefall. airflow

Heatrunsat

lowercritical

temperature

constantpressuredifferential

attic room differential velocity cfm/sq ft fan cap fan cfm cfm/watt fan cap fan cfm cfm/watt0.00 0.00 0.00 0 0 100% 34,800 20.5 100% 31,000 22.6 100% 30,700 21.2

0.05 0.00 0.05 400 400 96% 33,300 18.6 94% 29,200 20.4 98% 30,000 20.20.10 0.05 0.05 92% 31,900 17.0 88% 27,400 18.4 92% 28,200 18.30.15 0.10 0.05 87% 30,400 15.6 82% 25,300 16.6 86% 26,300 16.50.20 0.15 0.05 82% 28,700 14.2 75% 23,100 14.7 78% 23,900 14.70.25 0.20 0.05 77% 26,700 12.8 66% 20,400 12.8 66% 20,400 12.30.30 0.25 0.05 70% 24,500 11.2 53% 16,500 10.4 52% 16,000 9.5

0.10 0.00 0.10 900 900 92% 31,900 17.0 88% 27,400 18.4 92% 28,200 18.30.15 0.05 0.10 87% 30,400 15.6 82% 25,300 16.6 86% 26,300 16.50.20 0.10 0.10 82% 28,700 14.2 75% 23,100 14.7 78% 23,900 14.70.25 0.15 0.10 77% 26,700 12.8 66% 20,400 12.8 66% 20,400 12.30.30 0.20 0.10 70% 24,500 11.2 53% 16,500 10.4 52% 16,000 9.5

0.15 0.00 0.15 1100 1100 87% 30,400 15.6 82% 25,300 16.6 86% 26,300 16.50.20 0.05 0.15 82% 28,700 14.2 75% 23,100 14.7 78% 23,900 14.70.25 0.10 0.15 77% 26,700 12.8 66% 20,400 12.8 66% 20,400 12.30.30 0.15 0.15 70% 24,500 11.2 53% 16,500 10.4 52% 16,000 9.5

0.20 0.00 0.20 1300 1300 82% 28,700 14.2 75% 23,100 14.7 78% 23,900 14.70.25 0.05 0.20 77% 26,700 12.8 66% 20,400 12.8 66% 20,400 12.30.30 0.10 0.20 70% 24,500 11.2 53% 16,500 10.4 52% 16,000 9.5

0.25 0.00 0.25 1400 1400 77% 26,700 12.8 66% 20,400 12.8 66% 20,400 12.30.30 0.05 0.25 70% 24,500 11.2 53% 16,500 10.4 52% 16,000 9.5

0.30 0.00 0.30 1500 1500 70% 24,500 11.2 53% 16,500 10.4 52% 16,000 9.5

Static Pressure Inlet CapacityFan Capacity* (test 120675)

M Drive high performance fan conventional fan BFan Capacity* (test 07105)Fan Capacity* (test 02387)

conventional fan A

FANANDINLETCAPACITYVSSTATICPRESSURE

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O O OO

O O O O O O

FAR 2 FAR 1

FAR 4 FAR 3

GEST 1

FAR 6 FAR 5

FAR 8 FAR 7

BREED FAR 9

FAR 10 FAR 11

FAR 12 FAR 13

FAR 14 FAR 15

GEST 2 FAR 16 FAR 17

FAR 18 FAR 19

DESIGN PROPERTY OF MIDWEST ENVIRONMENTAL SPECIALISTS, INC.

COOLING

FANSFILTERS

FILTERSFANS

DDOFFICE LOADOUT

FILTERSFANS

COOLING

SUPPLY

ENTRY

FANSFILTERSCOOLING

FILTERSFAN

S

DEAD

FANS

FANS

PW

ELECT

DEAD

FILTERSCOOLING

FILT

ER

SC

OO

LIN

G

GEN

ELECT

WASH

ENTRY

ISOLATION

GDU

FANS

FILTERS

++PRRSFORTRESSPOSITIVEPRESSURE6000SOWSITE

FANWALLINGABLE

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GABLEENDFILTERWALL

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GABLEENDFILTERS

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DORMERCONSTRUCTION

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INLETS

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PITOUTLET

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POSITIVE PRESSURE BARNEXTERIOR WALL STRUCTURE

48" Roll seal or insulated curtain wall outlet damper

45" ID Z Wall shutter wall for backdraft protection

Exterior Wallof Building

Base wall: 48" insulated concrete or EPS Panel

ZWALLATCURTAINOUTLET

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OUTLETCURTAIN

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Pitpumpoutcover

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CONTROLCOMBITABLE

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BUILDING GEST Room1of2 WTRANGE 350 400#PIGSTTL 2400 ABSMINVENT 36000 48000 0.20"WC 0.30"WC

MAXVENT 772200 661500PERPIG 15 20 322 276

Stage Vent% Step Analog% CFM/Fan #ofFans TotalCFMCFMJump %Jump HOFAN0L 4% 1 45 10000 3 30000 Min% at0.20"SP 0.30"WC0H 11% 2 100 28600 3 85800 40% 52001L 12% 3 60 18400 5 92000 6200 7% 45% 100001H 19% 4 100 28600 5 143000 50% 148002L 20% 5 70 21400 7 149800 6800 5% 55% 166002H 26% 6 100 28600 7 200200 60% 184003L 27% 7 80 24000 9 216000 15800 8% 65% 189003H 33% 8 100 28600 9 257400 70% 214004L 34% 9 70 21400 13 278200 20800 10% 75% 227004H 48% 10 100 28600 13 371800 80% 240005L 49% 11 70 21400 19 406600 34800 9% 90% 265005H 70% 12 100 28600 19 543400 100% 28600 245006L 75% 13 70 21400 27 577800 34400 6%6H 100% 14 100 28600 27 772200

0

100000

200000

300000

400000

500000

600000

700000

800000

900000

1 2 3 4 5 6 7 8 9 10 11 12 13 14

AIRFLOWBYSTAGE

GEST2Nov27performance

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GEST2Nov29performance(windyday)

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VENTILATIONCOMPARISON

NEGATIVEPRESSURE

FANS

•  Severalmodelsandsizesrequired(190)

•  Varyingenergyefficiency

•  Requirefrequentmaintenanceandcleaning

•  Averagecfm/wamoftypicaldesign:13.2

PRSSFORTRESS++

FANS•  Usuallyonlyonemodel(108)•  Variablespeed/variable

output•  Veryhighefficiency•  Locatedin“clean”space•  Virtuallynomaintenance•  Accesstofansoutsideofpig

space.•  Cfm/wamofMUNTERSDRIVE

fan:16.0(13.8high/17.9low)(18%reduc-on)

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VENTILATIONCOMPARISON

NEGATIVEPRESSURE

INLETS:

•  Regulatedbyven-la-onstageorsta-cpressure

•  Actuatedrecommended

OUTLETDAMPER:

•  Notused

PRSSFORTRESS++

INLETS:

•  Regulatedbytemperature

•  Actuatedrequired

OUTLETDAMPER:

•  Maintainscorrectroomsta-cpressure

•  Curtain,RollSeal,ordoor

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VENTILATIONCOMPARISON

NEGATIVEPRESSURE

CONTROLS:

•  Onerequiredperroom

EVAPORATIVECOOLING:

•  Loca-onvarieswithven-la-ondesign.

PRSSFORTRESS++CONTROLS:

•  Onerequiredperbuilding•  Internetaccess

EVAPORATIVECOOLING:

•  Locatedoutsideoffiltersfor“dirtyside”maintenance

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++POSITIVEPRESSURECONCEPTOFFICE/LOADOUT/SUPPLY

++PATENTPENDING

26"FAN

CONNECTOR FROM FARROWINGPRESSURIZED WITH FILTERED AIR.SOURCE IS FILTER BANK AT FARROWING GABLE END.

FARROWING GABLE END FARROWING GABLE END

LAUNDRYHOLDING ROOM #1 (10 X 56)375 NURSERY PIGS

HOLDING ROOM #2 (10 X 56)375 NURSERY PIGS

WORKSHOP AND STORAGE

16" FAN FIXED GRILL 15" TEMPERING AIR DUCT ALONG CEILING OF NURSERY ROOM 2 AIR DUCT WITH FAN 24" x 24"

TO PRESSURIZE OFFICE/WORK SPACEFILTERS SOURCE IS FILTERED AIR FROM HOLDING ABS GRIDS SOW PENS AND STAGING FILTER BANK. AIR DUCT BELOW CEILING

TO TEMPER AIR TEMPERATURE.

(3) MANUAL WINCH OPERATED INLETS PER HOLDING ROOMDISINFECTEXHAUST FAN BY OTHERS

DIRTY SIDE STORAGE MANAGER'S OFFICE UVMECHANICAL

DOUBLE SHUTTER22 X 22

receiving 14" FANENTRY PRESSURIZEDAIR. SOURCE IS FILTERED AIR FROM OFFICE/WORKSHOPHI/LOW FAN

4 FILTER GRIDSEACH GRID 51 1/2" x 76"TOTAL 103" X 152"

FANS (1) 16 AND (3) 26" 22 X 22DOUBLE SHUTTER

OUTLET SHUTTERS48 x 36

FILTERSENTRY

OFFICE AND LOADOUT

(1) 48" x 36"DOUBLE SHUTTERS

24

MUNTERSDRIVEFAN

•  Lowmaintenancedirectdrive:nobeltsorbearingstoservice.

•  Efficient“EC”motortechnology

•  Idealforhighsta-cpressureopera-on.

•  Upto40%energysavings•  Variablespeed/variable

output•  Highqualitycastaluminum

propellerandfiberglasshousing.

•  Significantlyreducedwiringcosts.

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SYSTEM COMPARISONPP NP DIFF

STRUCTURES 0 0 $0.00

CONCRETE 0 0 $0.00

ELECTRICAL 690,345 771,035 -$80,690.00

FANS 210,329 233,868 -$23,539.00

PIT OUTLETS 10,500 $10,500.00

INLETS 116,661 116,661 $0.00

INLET ACTUATORS 58,715 36,651 $22,064.00

CATWALKS 0 25,000 -$25,000.00

OUTLET CURTAINS 28,000 0 $28,000.00

COOLING 70,161 70,161 $0.00

FILTERS 429,153 581,318 -$152,165.00

CONTROLS 50,460 75,056 -$24,596.00

Z WALL SHUT 31,717 27,068 $4,649.00

SOFTWARE/TECH 8,000 4,000 $4,000.00

-$236,777.00

PRRSFORTRESS++POSITIVEPRESSUREFILTRATIONRETROFIT

1.  Insulateroofline

2.  Install“dormers”touseasairinletsforcoolingandfilters.

3.  Installactuatedceilinginletsforfulltopven-la-on.

4.  Installoutletdamperstoregulateroompressure

5.  Install“MDrive”variableoutputdirectdrivefansindormers

++PATENTPENDING

5' X 70' COOLING

OUTLETDAMPER

15' X 80' DORMER

92 INLETS

FILTER WALL. 4 X 39, 156 FILTERS EACH

OUTLET DAMPER

5' X 70' COOLING

OUTLET DAMPER

15' X 80' DORMER

PipedrivetoliCoutletcurtainordoor

OUTLETCURTAIN

INSULATEDDOOROUTLETSONOFFSETRIDGEBARN

++PATENTPENDING

2Dormersonfarrowingbarn

GDUSITECONCEPT

++PATENTPENDING

20' 100' x 200' pig space 20'

40' x 40' office/loadout/supply

Room exhaust dampers Filter wall

Pit exhaust dampers Cooling wall

Fans

WHATWEHAVELEARNED

•  Airqualityanddistribu-onextremelygood

•  Constantaocpressureisakey;variablespeedfansessen-al

•  Lowerven-la-onratesmaybepossible.

•  Biosecurityconsidera-ons:allleaksoutward•  Mul-pleinletzonesinlargebuildings

++PATENTPENDING

WHATWEDON’TKNOW

•  Arewindbreaksneeded?•  Isfilterlifewhatweexpect?•  Howdoesopera-ngcostcompare?•  AreothercontrolsforPPonthehorizon?(currentlyFancom,Maximus,Dicam)•  Whatisbestoutletdesign?•  Isthereanybuildingdeteriora-on?•  Ishigherpressureopera-onfeasible?

++PATENTPENDING

FUTURE•  Addi-onalfilterresearchneeded•  VarietyoftestlabswithdifferentresultsLMS,BlueHeaven,University,Manufacturers•  BESSLaboratorytypeuniversaltes-ngneededFundingfrommanufacturersandtes-ngfees?Testforairflow,frac-onalefficiency,mediadecay,etc.Tes-ngprotocolsestablishedbygoverningboard•  NewfiltermediadevelopmentNano-par-cle,highairflow,minipleatdisposable,prefilters

++PATENTPENDING