ESP ED PB EXTERNAL STATIC PRESSURE CALCULATIONPROTOTYPE ROOF MOUNTED EXHAUST FANS.No.DescriptionWHArea a=HW (m)Air Flow Q (L/s)Equivalent Length(m)Velocity =Q/a (m/s)Velocity V=Q/a (FPM)hv= (V/4005)nhv1nhv2n(hv2-hv1)Pressure Drop(Pa/m)Total Pressure Drop(Pa)Remarks1Bird Wire Mesh5003000.157725.15101310.00Refer Note 62Non-return damper5003000.157725.15101350.00Refer Note 7Straight Duct5003000.157720.155.1510130.4080.06Refer Note 33Reducer6253000.18757724.128100.0410.04177339670.02349753575.87Refer Note 45003000.157725.1510130.0640.0652709324Straight Duct6253000.18757720.14.128100.4080.04Refer Note 34Volume Control Damper6253000.18757724.1281012.5Refer Note 85Straight Duct6253000.18757720.4284.128100.4080.17Refer Note 36Fire Damper6253000.18757724.128102.00Refer Note 57Straight Duct6253000.18757720.3394.128100.4080.14Refer Note 38Bend, 906253000.18757723.054.128100.4081.24Refer Note 39Straight Duct6253000.18757720.854.128100.4080.35Refer Note 310Bend, 906253000.18757723.054.128100.4081.24Refer Note 311Straight Duct6253000.18756372.573.406690.4081.05Refer Note 312Bend, 906253000.18756373.053.406690.4081.24Refer Note 313Straight Duct6253000.18756370.603.406690.4080.24Refer Note 314Expansion6253000.18756373.406690.0280.02593145180.00470589671.18Refer Note 45753000.17256373.697270.0330.030637348515Straight Duct5753000.17256374.013.697270.4081.64Refer Note 316Bend, 455753000.17256371.373.697270.4080.56Refer Note 317Straight Duct5753000.17256371.963.697270.4080.80Refer Note 318Bend, 455753000.17256371.373.697270.4080.56Refer Note 319Straight Duct5753000.17253520.982.044020.4080.40Refer Note 320Expansion5753000.17253522.044020.0100.00935529830.00776910581.94Refer Note 44253000.12753522.765430.0180.017124404121Straight Duct4253000.12753523.342.765430.4081.36Refer Note 322Bend, 134253000.12753520.402.765430.4080.16Refer Note 323Straight Duct4253000.12753036.652.384680.4082.71Refer Note 324Expansion4253000.12753032.384680.0140.01268864940.00602063471.51Refer Note 43003500.1053032.895680.0200.018709284125Straight Duct3003500.1053032.242.895680.4080.91Refer Note 326Bend, 903003500.1053032.132.895680.4080.87Refer Note 327Straight Duct3003500.1053039.542.895680.4083.89Refer Note 328Bend, 73003500.1053030.16566666672.895680.4080.07Refer Note 329Straight Duct3003500.1052515.182.394710.4082.11Refer Note 330Expansion3003500.1052512.394710.0140.01283864990.00795784081.99Refer Note 43002750.08252513.045990.0220.020796490731Straight Duct3002750.08251514.561.833600.4081.86Refer Note 332Bend, 753002750.08251511.7751.833600.4080.72Refer Note 333Straight Duct3002750.08251515.551.833600.4082.26Refer Note 334Bend, 193002750.08251510.44966666671.833600.4080.18Refer Note 335Straight Duct3002750.08251042.161.262480.4080.88Refer Note 336Expansion3002750.08251041.262480.0040.00357033770.0031798320.79Refer Note 43002000.061041.733410.0070.006750169737Straight Duct3002000.061041.321.733410.4080.54Refer Note 338Bend, 103002000.061040.16888888891.733410.4080.07Refer Note 339Straight Duct3002000.061042.361.733410.4080.96Refer Note 340Straight Duct3001000.03310.681.032030.4080.28Refer Note 341Exhaust Diffuser3003000.09310.34685.25Refer Note 242Door Grille1751000.0175281.6031531.75Refer Note 1Sub Total=154.38Add 10% safety factor7.72Total External Static Pressure162.10Say162Notes:1Refer attached EH Price Catalogue of Door Grille2Refer attached EH Price Catalogue of Exhaust Air Diffuser3Duct Designed at 0.408 Pa/m4Refer Carrier Hand Book Table attached5Refer ATAI Catalogue of fire damper attached6Assumed value7Refer Non-return damper Catalogue8Refer ATAI Catalogue of volume control damper attached

ESP PAU PBEXTERNAL STATIC PRESSURE CALCULATIONPROTOTYPE BUILDING ROOF MOUNTED PACKAGE UNITS.No.DescriptionWHArea a=HW (m)Air Flow Q (L/s)Equivalent Length(m)Velocity =Q/a (m/s)Velocity V=Q/a (FPM)hv= (V/4005)nhv1nhv2n(hv2-hv1)Pressure Drop (Pa/m)Total Pressure Drop(Pa)Remarks1Laminar flow diffuser(SD)6006000.362800.7815320.00Refer Note 12Flexible Duct3003000.092801.003.116120.390.39Refer Note 23Straight Duct3503750.131255602.424.278400.390.94Refer Note 24Bend, 903503750.131255602.444.278400.390.95Refer Note 35Straight Duct3503750.131255601.104.278400.390.43Refer Note 26Bend, 903503750.131255602.444.278400.390.95Refer Note 37Straight Duct3503750.131255604.534.278400.391.77Refer Note 28Bend, 123503750.131255600.334.278400.390.13Refer Note 39Straight Duct3503750.131255602.204.278400.390.86Refer Note 210Bend, 253503750.131255600.684.278400.390.26Refer Note 311Straight Duct3503750.131255600.184.278400.390.07Refer Note 212Reducer3503750.131255604.278400.0440.0448585430.02601364766.50Refer Note 34504500.20255602.775440.0180.018844895513Straight Duct4504500.20259182.184.538920.390.85Refer Note 214Reducer4504500.20259184.538920.0500.05064108960.01962461884.91Refer Note 34505750.258759183.556980.0300.031016470815Straight Duct4505750.2587512773.114.949720.391.21Refer Note 216Bend, 754505750.2587512772.794.949720.391.09Refer Note 317Straight Duct4505750.2587513763.385.3210470.391.32Refer Note 218Reducer4505750.2587513765.3210470.0680.0696857350.01324028963.31Refer Note 35005750.287513764.799420.0550.056445445319Straight Duct5005750.287514762.715.1310110.391.06Refer Note 220Reducer5005750.287514765.1310110.0640.06494784580.01984517514.96Refer Note 36005750.34514764.288420.0440.045102670721Straight Duct6005750.34518692.215.4210660.390.86Refer Note 222Reducer6005750.34518695.4210660.0710.07231828970.02352189275.88Refer Note 36007000.4218694.458760.0480.04879639723Straight Duct6007000.4220650.594.929680.390.23Refer Note 224Bend, 76007000.4220650.404.929680.390.16Refer Note 325Straight Duct6007000.4225413.116.0511910.391.21Refer Note 226Reducer6007000.4225416.0511910.0880.09019417350.01334233343.34Refer Note 36507000.45525415.5810990.0750.076851840227Straight Duct6507000.45528216.056.2012200.392.36Refer Note 228Bend, 906507000.45528214.276.2012200.391.67Refer Note 329Straight Duct6507000.45528213.946.2012200.391.54Refer Note 230Reducer6507000.45528216.2012200.0930.09472205540.01304844643.26Refer Note 37007000.4928215.7611330.0800.08167360931Straight Duct7007000.4929212.835.9611730.391.10Refer Note 232Straight Duct7007000.4929211.005.9611730.390.39Refer Note 233Straight Duct7007000.4929210.305.9611730.390.12Refer Note 234Bend, 127007000.4929210.575.9611730.390.22Refer Note 335Straight Duct7007000.4929212.155.9611730.390.84Refer Note 236Reducer7007000.4929215.9611730.0860.08756664040.047009637411.75Refer Note 312006000.7229214.067990.0400.04055700337Straight Duct12006000.7246571.996.4712730.390.78Refer Note 238Reducer12006000.7246576.471273.240.100.100.025.53Refer Note 313006250.812546575.731128.290.080.0839Bend, 3513006250.812546572.735.731128.290.391.06Refer Note 340Straight Duct13006250.812552814.546.501279.470.391.77Refer Note 241Bend, 4313006250.812552813.356.501279.470.391.31Refer Note 342Reducer13006250.812552816.501279.470.100.100.0511.68Refer Note 310006750.67552817.821540.100.150.1543Straight Duct10006750.67552810.157.821540.100.390.06Refer Note 244Volume Control Damper10006750.67552810.157.821540.1022.50Refer Note 445Straight Duct10006750.67552810.157.8215400.390.06Refer Note 246Straight Duct10006750.67552810.507.8215400.390.20Refer Note 247Bend, 9010006750.67552816.407.821540.100.392.50Refer Note 348Bend, 9016006751.0875007.626.941367.020.392.97Refer Note 349Straight Duct16006751.0875000.176.9413670.390.07Refer Note 250Fire Damper16006751.0875000.176.9413674.50Refer Note 551Straight Duct16006751.0875002.096.9413670.390.81Refer Note 252Reducer16006751.0875006.941367.020.120.120.0071.77Refer Note 355020251.1137575006.731325.590.110.1153Straight Duct55020251.1137575000.306.7313260.390.12Refer Note 254Plenum50009004.575001.801.673280.3910.0055Straight Duct11005500.60537500.106.2012200.390.04Refer Note 256Non-return damper11005500.60537500.106.20122050.00Refer Note 857Straight Duct11005500.60537500.216.2012200.390.08Refer Note 258Bend, 2011005500.60537501.426.201220.150.390.55Refer Note 359Straight Duct11005500.60537500.476.2012200.390.18Refer Note 260Bend, 1711005500.60537501.216.201220.150.390.47Refer Note 361Straight Duct11005500.60537501.036.2012200.390.40Refer Note 262Sound Attenuator (SD)11005500.60537501.206.20122075.00Refer Note 663Straight Duct11005500.60537500.236.2012200.390.09Refer Note 264Reducer11005500.60537506.201220.150.090.090.0286.96Refer Note 39008000.7237505.211025.260.070.0765Straight Duct9008000.7237500.245.2110250.390.09Refer Note 266Straight Duct(RD)9008000.7233640.244.679200.390.09Refer Note 267Reducer9008000.7233644.67919.730.050.050.0225.60Refer Note 311005500.60533645.561094.550.070.0868Straight Duct(RD)11005500.60533640.155.5610950.390.06Refer Note 269Sound Attenuator (RD)11005500.60533641.205.56109567.50Refer Note 670Straight Duct(RD)11005500.60533640.155.5610950.390.06Refer Note 271Bend, 4911005500.60533643.485.561094.550.391.36Refer Note 372Straight Duct(RD)11005500.60533640.625.5610950.390.24Refer Note 273Bend, 4911005500.60533643.485.561094.550.391.36Refer Note 374Straight Duct(RD)11005500.60533640.195.5610950.390.07Refer Note 275Non-return damper11005500.60533640.105.56109550.00Refer Note 876Straight Duct(RD)11005500.60533640.205.5610950.390.08Refer Note 277Plenum50009004.567281.801.502940.3910.0078Straight Duct(RD)18505501.017567280.306.6113020.390.12Refer Note 279Expension (RD)62515500.9687567286.951367.130.120.110.0102.53Refer Note 418505501.017567286.611301.630.110.1080Straight Duct(RD)62515500.9687567280.156.951367.130.390.06Refer Note 281Bend, 3962515500.9687567283.306.951367.130.391.29Refer Note 382Straight Duct(RD)62515500.9687567280.696.951367.130.390.27Refer Note 283Bend, 3962515500.9687567283.306.951367.130.391.29Refer Note 384Straight Duct(RD)62515500.9687567280.176.951367.130.390.07Refer Note 285Fire Damper62515500.9687567286.9513672.5086Straight Duct(RD)62515500.9687567280.216.951367.130.390.08Refer Note 287Bend, 9062515500.9687567287.626.951367.130.392.97Refer Note 388Straight Duct(RD)62515500.9687560930.406.291238.100.390.16Refer Note 289Straight Duct(RD)12256250.76562560930.507.961566.580.390.20Refer Note 290Bend, 9062512250.76562560937.017.961566.580.392.73Refer Note 391Straight Duct(RD)12256250.76562560930.457.961566.580.390.18Refer Note 292Straight Duct(RD)12256250.76562560930.107.961566.580.390.04Refer Note 293Volume Control Damper12256250.76562560937.961566.5812.50Refer Note 494Straight Duct(RD)12256250.76562560930.517.961566.580.390.20Refer Note 295Reducer12256250.76562560937.961566.580.150.160.0379.14Refer Note 314006250.87560936.961370.750.120.1296Straight Duct(RD)14006250.87560931.656.961370.750.390.64Refer Note 297Expension (RD)12006250.7547816.371254.860.100.090.0246.06Refer Note 414006250.87547815.461075.590.070.0798Straight Duct(RD)12006250.7547810.756.371254.860.390.29Refer Note 299Bend, 9012006250.7545137.016.021184.510.392.73Refer Note 3100Straight Duct(RD)12006250.7545134.436.021184.510.391.73Refer Note 2101Expension (RD)9506250.5937540576.831345.050.110.100.0399.79Refer Note 412006250.7540575.411064.830.070.07102Straight Duct(RD)9506250.5937540572.936.831345.050.391.14Refer Note 2103Bend, 129506250.5937534320.855.781137.840.390.33Refer Note 3104Straight Duct(RD)9506250.5937534320.835.781137.840.390.32Refer Note 2105Expension (RD)6506250.4062521865.381059.240.070.070.0358.65Refer Note 49506250.5937521863.68724.740.030.03106Straight Duct(RD)6506250.4062521861.615.381059.240.390.63Refer Note 2107Bend, 296506250.4062521861.675.381059.240.390.65Refer Note 3108Straight Duct(RD)6506250.4062521864.945.381059.240.391.93Refer Note 2109Bend, 636506250.4062514183.633.49687.100.391.41Refer Note 3110Straight Duct(RD)6506250.4062514180.203.49687.100.390.08Refer Note 2111Expension (RD)4006250.2514185.671116.540.080.070.04511.23Refer Note 46506250.4062514183.49687.100.030.03112Straight Duct(RD)4006250.256861.392.74540.160.390.54Refer Note 2113Expension (RD)4004250.176864.04794.350.040.040.0204.92Refer Note 44006250.256862.74540.160.020.02114Straight Duct(RD)4004250.176862.984.04794.350.391.16Refer Note 2115Bend, 94004250.176860.374.04794.350.390.14Refer Note 3116Straight Duct(RD)4004250.176862.274.04794.350.390.88Refer Note 2117Expension (RD)1754250.0743751752.35463.180.010.010.0102.51Refer Note 44004250.171751.03202.640.000.00118Straight Duct(RD)1754250.0743751751.632.35463.180.390.63Refer Note 2119Bend, 291754250.0743751750.692.35463.180.390.27Refer Note 3220Straight Duct(RD)1754250.0743751751.832.35463.180.390.71Refer Note 2221Volume Control Damper2002000.04581.45285.435.00Refer Note 4222Flexible Duct2002000.04581.001.45285.430.390.39Refer Note 2223Curved Linear slot diffuser (RD)6001500.09580.64126.863.50Refer Note 7Total=529.46Safety 5%52.95Grand Total=582.41Say582Notes:1Refer attached EH Price Catalogue of Laminar flow diffuser2Duct Designed at 0.408 Pa/m3Refer Carrier Hand Book Table attached4Refer ATAI Catalogue of volume control damper attached5Refer ATAI Catalogue of fire damper attached6Refer Catalogue of Sound Attenuator attached7Refer Catalogue of Curved Linear slot diffuser attached8Refer Catalogue of Non Return Damper attached9SD- Supply Duct10RD- Return Duct

Page &P of &N

REDUCER LOSSFriction Loss of Reducers of 60, n=1.02 (page 43 CHB) For Prototype BuildingS.No.Duct Width WDuct Height DEquivalent Diameter of Duct d=sqrt(W*D)X- Area of Duct mFlow m/sVelocity m/sVelocity FPMhv= (V/4005)S.P. Loss= n(hv2 - hv1) in wgS.P. Loss= n(hv2 - hv1) Pa.14504504500.1590.4903.086070.0230.0328.080.48428808970.66851523240.6823503753620.1030.4904.769360.0551.152803322225005755360.2261.0204.528900.0490.0122.954505755090.2031.0205.029890.06136005755870.2711.1204.148140.0410.0194.645005755360.2261.1204.969770.05946507006750.3571.9045.3310490.0690.0123.046007006480.3301.9045.7711370.08157007007000.3852.1075.4810780.0720.0122.956507006750.3572.1075.9011610.08466506006240.3062.2077.2114190.126-0.047-11.737007007000.3852.2075.7411290.080713006259010.6383.3635.2710380.0670.0194.6812006008490.5653.3635.9511710.086810006758220.5303.9107.3814530.132-0.042-10.3913006259010.6383.9106.1312070.0919160067510390.8485.4876.4712740.101-0.006-1.54550202510550.8745.4876.2812350.0951012005508120.5182.7445.3010430.068-0.011-2.769008008490.5652.7444.859560.05711550185010090.7992.9563.707290.0330.0348.419008008490.5652.9565.2310300.0661262515509840.7605.9117.7715300.146-0.014-3.48550185010090.7995.9117.4014570.1321312256258750.6015.1268.5316790.176-0.042-10.5014006259350.6875.1267.4614690.1351414006259350.6874.2156.1412080.0910.0348.3812006258660.5894.2157.1614090.1241512006258660.5893.1195.3010430.0680.04110.309506257710.4663.1196.6913170.108169506257710.4661.9694.228320.0430.05012.496506256370.3191.9696.1712150.092176506256370.3191.1543.627120.0320.05313.234006255000.1961.1545.8811580.084184004254120.1330.2011.512960.0050.0245.901754252730.0580.2013.446780.029194504504500.1591.0206.4212630.099-0.039-9.834505755090.2031.0205.029890.061206007006480.3301.4084.278410.0440.0225.426005755870.2711.4085.2010230.065214004254120.1330.6664.999820.060-0.033-8.254006255000.1960.6663.396680.02812005508120.5182.7445.307320.033-0.006-1.424006255000.1960.6663.396680.028

Summary of ESPSummary of External Static Pressure of Package Rooftop UnitExternal Static Pressure Calculation for supply air duct174 PascalExternal Static Pressure Calculation for return air duct166 PascalTotal Design External Static Pressure340 PascalProposed Package Rooftop Unit External Static Pressure350 Pascal

BEND LOSSAdditional Equivalent Length of Straight Duct Due to Radius Elbow With VanesS.No.Duct Width mmDuct Height mmAdditional Length (m)12400120013.722240090010.97324007509.454240060010.06524005008.5361800120013.417180090010.06818007508.53918006008.841018005007.011118004005.491218003005.18131500120012.501415009009.451515007507.621615006008.231715005006.711815004004.881915003004.57201200120010.672112009007.922212007507.012312006007.322412005005.792512004004.572612003004.272712002503.662812002002.4429105010508.533010509007.323110507506.403210506006.403310505005.493410504004.273510503003.663610502503.353710502002.44Additional Equivalent Length of Straight Duct Due to Radius Elbow With VanesS.No.Duct Width mmDuct Height mmAdditional Length (m)S.No.Duct Width mmDuct Height mmAdditional Length (m)389009006.71754002501.83399007505.79764002001.52409006006.10774001501.22419005005.18783003002.13429004003.96793002501.83439003003.35803002001.52449002503.05813001501.22459002002.44822502501.52468008005.79832502001.22478007505.49842501500.91Additional Equivalent Length of Straight Duct Due to Radius Elbow With VanesS.No.Duct Width mmDuct Height mmAdditional Length (m)S.No.Duct Width mmDuct Height mmAdditional Length (m)488006005.79852002001.52498005004.88862001501.22508004003.66871501500.91518003003.05528002502.44538002002.13547007004.27557006005.18567005004.57577004003.35587003003.05597002502.44607002002.13616006003.96626005003.35636004003.05646003002.74656002502.44666002002.13675005004.57685004003.66695003002.74705002502.44715002002.13725001501.83734004002.44744003002.13

ESP PROTOTYPE BEXTERNAL STATIC PRESSURE CALCULATIONPROTOTYPE ROOF MOUNTED PACKAGE UNITS.No.Duct ElementsSize of Duct ElementsEquivalent Length(m)Pressure Drop (Pa/m)Total Pressure Drop(Pa)Remarks1Laminar flow diffuser(SD)600mm600mm..10Refer Note 12Straight Duct(SD)59590.40824.07Refer Note 23Straight Duct(RD)34340.40813.87Refer Note 24Reducer(SD)450450/350375.8.08Refer Note 35Reducer(SD)500575/450575.2.95do6Reducer(SD)600575/500575...4.46do7Reducer(SD)650700/600700.3.04do8Reducer(SD)700700/650700.2.95do9Reducer(SD)650600/700700.11.73do10Reducer(SD)1300625/1200600.4.68do11Reducer(SD)1000675/1300625.10.39do12Reducer(SD)1600675/5502025.1.54do13Reducer(SD)1200550/900800.2.76do14Reducer(SD)450450/450575.9.83do15Reducer(SD)600700/600575.5.42do16Reducer(RD)5501850/9008008.41do17Reducer(RD)6251550/55018503.48do18Reducer(RD)1225625/140062510.50do19Reducer(RD)1400625/12006258.38do20Reducer(RD)1200625/95062510.30do21Reducer(RD)950625/65062512.49do22Reducer(RD)650625/40062513.23do23Reducer(RD)400425/1754255.90do24Reducer(RD)400425/4006258.25do25Bend 22 (SD), 2no.350mm375mm4.880.4081.99do26Bend 22 (SD), 1no.600mm700mm5.180.4082.11do27Bend 22 (SD), 1no.700mm700mm4.270.4081.74do28Bend 22 (SD), 2no.550mm2050mm17.060.4086.96do29Bend 22 (RD), 1no.950mm625mm6.400.4082.61do30Bend 22 (RD), 1no.650mm625mm5.180.4082.11do31Bend 22 (RD), 1no.400mm425mm3.660.4081.49do32Bend 22 (RD), 1no.175mm425mm1.830.4080.75do33Bend 45 (SD), 2no.1300mm625mm15.840.4086.46do34Bend 90(SD), 2no.350mm375mm4.880.4081.99do35Bend 90(SD), 1no.450mm575mm3.350.4081.37do36Bend 90(SD), 1no.650mm700mm4.270.4081.74do37Bend 90(SD), 1no.675mm1000mm6.400.4082.61do38Bend 90(SD), 1no.1600mm675mm8.840.4083.61do39Bend 90(RD), 1no.1200mm625mm7.000.4082.86do40Bend 90(RD), 1no.625mm1225mm7.000.4082.86do41Bend 90(RD), 1no.650mm625mm4.270.4081.74do42Bend 90(RD), 1no.625mm1550mm9.450.4083.86do43Volume Control Damper at 7.38 m/s(SD)1000mm675mm...22.50Refer Note 444Volume Control Damper at 2.1 m/s (RD)200 mm dia....2.50Refer Note 445Volume Control Damper at 8.53 m/s (RD)1225mm625mm...30.00Refer Note 446Fire Damper at 7.38 m/s (SD)1600mm675mm..4.00Refer Note 547Fire Damper at 7.22 m/s (RD)1550mm625mm..4.50Refer Note 548Sound Attenuator at 5.3 m/s (SD)1200mm550mm62.50Refer Note 649Sound Attenuator at 5.3 m/s (RD)1200mm550mm62.50Refer Note 650Curved Linear slot diffuser (RD)600mm200mm13.50Refer Note 751Non Return Damper(SD)900mm800mm50.00Refer Note 852Non Return Damper(RD)900mm800mm50.00Refer Note 8Sub Total=547.58Add 5% safety factor27.38Total External Static Pressure574.95Say575Notes:1Refer attached EH Price Catalogue of Laminar flow diffuser2Duct Designed at 0.408 Pa/m3Refer Carrier Hand Book Table attached4Refer ATAI Catalogue of volume control damper attached5Refer ATAI Catalogue of fire damper attached6Refer Catalogue of Sound Attenuator attached7Refer Catalogue of Curved Linear slot diffuser attached8Refer Catalogue of Non Return Damper attached9SD- Supply Duct10RD- Return Duct

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CONVERSIONConversion1 LPS=2.12CFM=15.85USGPM=3.6CMH1 CMH=0.5889CFM1 TR=3.5159kW1 kg=2.2046lb1 m=3.281ft1 bar=10.21m of WC=14.5PSI1 m=39.37008inches1" WC=248.78Pagpm/ ton=24/ t=1.5total gpm=29341 m/s=15850.32US gpm1 m/s=196.8504FPMU=1 W/mK=0.1761 Btu/hr.ft. F1 ft/100 ft=98Pa/m245