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Home My WebLink AboutAPPROVED Peterbilt Heat LoadPeterbilt Store HVAC Load Analysis for Peterbilt Store 5750 Orange Ave. Fort Pierce, Florida Prepared By: Eric J. Svoboda, PE Fort Pierce Engineering, Inc. 315 South 7th Street Fort Pierce, FL 34950 772-672-4636 Friday, November 5, 2021 Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 2 General Project Data Input General Project Information Project file name:Peterbilt Heat Load.CH8 Project title:Peterbilt Store Designed by:Eric J. Svoboda, PE Project date:Monday, July 07, 2008 Weather reference city:FORT PIERCE, FLORIDA, USA Client name:Peterbilt Store Client address:5750 Orange Ave. Client city:Fort Pierce, Florida Company name:Fort Pierce Engineering, Inc. Company representative:Eric J. Svoboda, PE Company address:315 South 7th Street Company city:Fort Pierce, FL 34950 Company phone:772-672-4636 Company fax:772-672-4637 Barometric pressure:29.894 in.Hg. Altitude:25 feet Latitude:27 Degrees Mean daily temperature range:15 Degrees Starting & ending time for HVAC load calculations:7am - 10pm Number of unique rooms in this project:24 Building Default Values Calculations performed:Both heating and cooling loads Lighting requirements:1.50 Watts per square foot Equipment requirements:1.00 Watts per square foot People sensible load multiplier:250 Btuh per person People latent load multiplier:200 Btuh per person Room sensible safety factor:0 % Room latent safety factor:0 % Room heating safety factor:0 % People diversity factor:100 % Lighting profile number:0 Equipment profile number:0 People profile number:0 Building default ceiling height:10.00 feet Building default wall height:10.00 feet Internal Operating Load Profiles (C = 100) hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 C C C C C C C C C C C C C C C C C C C C C C C C 2 C C C C C C C C C C C C C C C C C C C C C C C C 3 C C C C C C C C C C C C C C C C C C C C C C C C 4 C C C C C C C C C C C C C C C C C C C C C C C C 5 C C C C C C C C C C C C C C C C C C C C C C C C 6 C C C C C C C C C C C C C C C C C C C C C C C C 7 C C C C C C C C C C C C C C C C C C C C C C C C 8 C C C C C C C C C C C C C C C C C C C C C C C C 9 C C C C C C C C C C C C C C C C C C C C C C C C 10 C C C C C C C C C C C C C C C C C C C C C C C C Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 3 General Project Data Input (cont'd) Building-Level Design Conditions Design Month Outdoor Dry Bulb Outdoor Wet Bulb Indoor Rel.Hum Indoor Dry Bulb Grains Diff In/Outdoor Correction August 95 80 50%75 66.33 6 Winter 42 75 Master Roofs Roof No. ASHRAE Roof# Roof U-Fac Dark Color Susp. Ceil 1 1 0.050 No No Roof #1 Description: Metal Roof, R-20 Master Walls Wall No. ASHRAE Group Wall U-Fac Wall Color 1 C 0.095 L Wall #1 Description: Block wall, 8" sand & gravel, hollow core, siding exterior, interior finish, 1" extruded poly, R-5.0 Master Partitions Partition No. Partition U-Factor Cool T-D Heat T-D 1 0.095 10 10 Partition #1 Description: Block partition, 8" sand & gravel, hollow core, siding exterior, interior finish, 1" extruded poly, R- 5.0 Master Glass Glass No. Summer U-Factor Winter U-Factor Glass Shd.Coef. Interior Shading Interior Shd.Coef 1 0.810 0.830 1.000 1 0.550 Glass #1 Description: Default Glass Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 4 Building Summary Loads Building peaks in August at 4pm. Bldg Load Descriptions Area Quan Sen Loss %Tot Loss Lat Gain Sen Gain Net Gain %Net Gain Roof 4,011 6,618 13.34 0 8,085 8,085 5.58 Wall 1,768 5,543 11.17 0 2,906 2,906 2.01 Glass 362 9,915 19.98 0 26,986 26,986 18.64 Floor Slab 200 4,092 8.25 0 0 0 0.00 Skin Loads 26,168 52.73 0 37,977 37,977 26.23 Lighting 6,017 0 0.00 0 20,529 20,529 14.18 Equipment 6,031 0 0.00 0 20,579 20,579 14.21 Pool Latent 0 0 0.00 0 0 0 0.00 People 48 0 0.00 9,600 12,000 21,600 14.92 Partition 1,270 1,207 2.43 0 1,207 1,207 0.83 Cool. Pret.0 0 0.00 0 0 0 0.00 Heat. Pret.0 0 0.00 0 0 0 0.00 Cool. Vent.625 0 0.00 28,167 13,738 41,905 28.94 Heat. Vent.625 22,255 44.84 0 0 0 0.00 Cool. Infil.0 0 0.00 0 0 0 0.00 Heat. Infil.0 0 0.00 0 0 0 0.00 Draw-Thru Fan 0 0 0.00 0 987 987 0.68 Blow-Thru Fan 0 0 0.00 0 0 0 0.00 Reserve Cap.0 0 0.00 0 0 0 0.00 Reheat Cap.0 0 0.00 0 0 0 0.00 Supply Duct 0 0 0.00 0 0 0 0.00 Return Duct 0 0 0.00 0 0 0 0.00 Misc. Supply 0 0 0.00 0 0 0 0.00 Misc. Return 0 0 0.00 0 0 0 0.00 Building Totals 49,629 100.00 37,767 107,015 144,783 100.00 Building Summary Sen Loss %Tot Loss Lat Gain Sen Gain Net Gain %Net Gain Ventilation 22,255 44.84 28,167 13,738 41,905 28.94 Infiltration 0 0.00 0 0 0 0.00 Pretreated Air 0 0.00 0 0 0 0.00 Room Loads 27,375 55.16 9,600 92,291 101,891 70.38 Plenum Loads 0 0.00 0 0 0 0.00 Fan/Duct/Misc Loads 0 0.00 0 987 987 0.68 Building Totals 49,629 100.00 37,767 107,015 144,783 100.00 Check Figures Total Building Supply Air (based on a 21° TD):4,123 CFM Total Building Vent. Air (15.16% of Supply):625 CFM Total Conditioned Air Space:4,011 Sq.ft Supply Air Per Unit Area:1.0280 CFM/Sq.ft Area Per Cooling Capacity:332.4 Sq.ft/Ton Cooling Capacity Per Area:0.0030 Tons/Sq.ft Heating Capacity Per Area:12.37 Btuh/Sq.ft Total Heating Required With Outside Air:49,629 Btuh Total Cooling Required With Outside Air:12.07 Tons Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 5 Air Handler #1 - AHU 1 - Summary Loads Rm No Description Room Peak Time Area People Volume Htg.Loss Htg.CFM CFM/Sqft Sen.Gain Clg.CFM CFM/Sqft Lat.Gain S.Exh W.Exh Htg.O.A. Req.CFM Act.CFM Clg.O.A. Req.CFM Act.CFM 1 Office 1 1pm August 108 1 1,080 1,130 52 0.48 3,047 133 1.23 200 0 0 Direct 14 16 Direct 14 13 2 Office 2 1pm August 108 1 1,080 1,130 52 0.48 3,047 133 1.23 200 0 0 Direct 14 16 Direct 14 13 3 Office 3 4pm August 108 1 1,080 2,236 104 0.96 5,119 224 2.07 200 0 0 Direct 14 32 Direct 14 22 4 Office 4 4pm August 96 1 960 2,650 123 1.28 7,204 315 3.28 200 0 0 Direct 13 38 Direct 13 32 5 Driver's Lounge 2pm August 180 2 1,800 815 38 0.21 3,524 154 0.86 400 0 0 Direct 24 12 Direct 24 15 6 Office 6 2pm August 108 1 1,080 178 8 0.08 1,932 84 0.78 200 0 0 Direct 14 3 Direct 14 8 7 Hall 2pm August 112 1 1,120 392 18 0.16 2,149 94 0.84 200 0 0 Direct 15 6 Direct 15 9 8 Reception / Lobby 1pm August 520 6 5,200 3,814 177 0.34 13,902 608 1.17 1,200 0 0 Direct 68 54 Direct 68 61 Room Peak Totals: Total Rooms: 8 Unique Rooms: 8 1,340 14 13,400 12,344 572 0.43 39,924 1,746 1.30 2,800 0 0 175 175 175 175 Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 6 Air Handler #1 - AHU 1 - Total Load Summary Air Handler Description:AHU 1 Constant Volume - Proportion Supply Air Fan:Draw-Thru with program estimated horsepower of 0.16 HP Fan Input:0% motor and fan efficiency with 0 in. water across the fan Sensible Heat Ratio:0.93 --- This system occurs 1 time(s) in the building. --- Air System Peak Time:3pm in August. Outdoor Conditions:Clg: 95° DB, 80° WB, 131.03 grains, Htg: 42° DB Indoor Conditions:Clg: 75° DB, 50% RH, Htg: 75° DB Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air. Room Space sensible loss:12,344 Btuh Infiltration sensible loss:0 Btuh 0 CFM Outside Air sensible loss: 6,231 Btuh 175 CFM Supply Duct sensible loss:0 Btuh Return Duct sensible loss:0 Btuh Return Plenum sensible loss:0 Btuh Total System sensible loss:18,576 Btuh Heating Supply Air: 12,344 / (.999 X 1.08 X 20) =572 CFM Winter Vent Outside Air (30.6% of supply) =175 CFM Room space sensible gain:37,963 Btuh Infiltration sensible gain:0 Btuh Draw-thru fan sensible gain:418 Btuh Supply duct sensible gain:0 Btuh Reserve sensible gain:0 Btuh Total sensible gain on supply side of coil:38,381 Btuh Cooling Supply Air: 38,381 / (.999 X 1.1 X 20) =1,746 CFM Summer Vent Outside Air (10.0% of supply) =175 CFM Return duct sensible gain:0 Btuh Return plenum sensible gain:0 Btuh Outside air sensible gain:3,847 Btuh 175 CFM Blow-thru fan sensible gain:0 Btuh Total sensible gain on return side of coil:3,847 Btuh Total sensible gain on air handling system:42,227 Btuh Room space latent gain:2,800 Btuh Infiltration latent gain:0 Btuh Outside air latent gain:7,887 Btuh Total latent gain on air handling system:10,687 Btuh Total system sensible and latent gain:52,914 Btuh Check Figures Total Air Handler Supply Air (based on a 20° TD):1,746 CFM Total Air Handler Vent. Air (10.02% of Supply):175 CFM Total Conditioned Air Space:1,340 Sq.ft Supply Air Per Unit Area:1.3031 CFM/Sq.ft Area Per Cooling Capacity:303.9 Sq.ft/Ton Cooling Capacity Per Area:0.0033 Tons/Sq.ft Heating Capacity Per Area:13.86 Btuh/Sq.ft Total Heating Required With Outside Air:18,576 Btuh Total Cooling Required With Outside Air:4.41 Tons Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 7 Air Handler #2 - AHU 2 - Summary Loads Rm No Description Room Peak Time Area People Volume Htg.Loss Htg.CFM CFM/Sqft Sen.Gain Clg.CFM CFM/Sqft Lat.Gain S.Exh W.Exh Htg.O.A. Req.CFM Act.CFM Clg.O.A. Req.CFM Act.CFM 9 Office 7 2pm August 108 1 1,080 264 12 0.11 1,499 62 0.57 200 0 0 Direct 16 7 Direct 16 13 10 Office 8 2pm August 120 1 1,200 293 14 0.11 1,638 68 0.57 200 0 0 Direct 17 7 Direct 17 14 11 Copy 2pm August 96 1 960 234 11 0.11 1,360 56 0.59 200 0 0 Direct 14 6 Direct 14 12 12 Conference 3pm August 132 6 1,320 944 44 0.33 3,293 136 1.03 1,200 0 0 Direct 19 24 Direct 19 28 13 Janitor 2pm August 20 0 200 33 2 0.08 215 9 0.45 0 0 0 Direct 3 1 Direct 3 2 14 I.T. 5pm August 32 1 320 675 31 0.98 815 34 1.06 200 0 0 Direct 5 17 Direct 5 7 15 Breakroom 1pm August 120 2 1,200 1,201 56 0.46 2,919 121 1.01 400 0 0 Direct 17 31 Direct 17 25 16 Men 3pm August 108 1 1,080 644 30 0.28 1,541 64 0.59 200 0 0 Direct 16 16 Direct 16 13 17 Women 3pm August 108 1 1,080 644 30 0.28 1,541 64 0.59 200 0 0 Direct 16 16 Direct 16 13 18 Hall 3pm August 190 2 1,900 935 43 0.23 2,810 116 0.61 400 0 0 Direct 28 24 Direct 28 24 Room Peak Totals: Total Rooms: 10 Unique Rooms: 10 1,034 16 10,340 5,868 272 0.26 17,630 730 0.71 3,200 0 0 150 150 150 150 Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 8 Air Handler #2 - AHU 2 - Total Load Summary Air Handler Description:AHU 2 Constant Volume - Proportion Supply Air Fan:Draw-Thru with program estimated horsepower of 0.07 HP Fan Input:0% motor and fan efficiency with 0 in. water across the fan Sensible Heat Ratio:0.85 --- This system occurs 1 time(s) in the building. --- Air System Peak Time:2pm in August. Outdoor Conditions:Clg: 95° DB, 80° WB, 131.77 grains, Htg: 42° DB Indoor Conditions:Clg: 75° DB, 50% RH, Htg: 75° DB Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air. Room Space sensible loss:5,868 Btuh Infiltration sensible loss:0 Btuh 0 CFM Outside Air sensible loss: 5,341 Btuh 150 CFM Supply Duct sensible loss:0 Btuh Return Duct sensible loss:0 Btuh Return Plenum sensible loss:0 Btuh Total System sensible loss:11,209 Btuh Heating Supply Air: 5,868 / (.999 X 1.08 X 20) =272 CFM Winter Vent Outside Air (55.2% of supply) =150 CFM Room space sensible gain:17,484 Btuh Infiltration sensible gain:0 Btuh Draw-thru fan sensible gain:175 Btuh Supply duct sensible gain:0 Btuh Reserve sensible gain:0 Btuh Total sensible gain on supply side of coil:17,658 Btuh Cooling Supply Air: 17,658 / (.999 X 1.1 X 22) =730 CFM Summer Vent Outside Air (20.5% of supply) =150 CFM Return duct sensible gain:0 Btuh Return plenum sensible gain:0 Btuh Outside air sensible gain:3,297 Btuh 150 CFM Blow-thru fan sensible gain:0 Btuh Total sensible gain on return side of coil:3,297 Btuh Total sensible gain on air handling system:20,955 Btuh Room space latent gain:3,200 Btuh Infiltration latent gain:0 Btuh Outside air latent gain:6,760 Btuh Total latent gain on air handling system:9,960 Btuh Total system sensible and latent gain:30,916 Btuh Check Figures Total Air Handler Supply Air (based on a 22° TD):730 CFM Total Air Handler Vent. Air (20.54% of Supply):150 CFM Total Conditioned Air Space:1,034 Sq.ft Supply Air Per Unit Area:0.7063 CFM/Sq.ft Area Per Cooling Capacity:401.4 Sq.ft/Ton Cooling Capacity Per Area:0.0025 Tons/Sq.ft Heating Capacity Per Area:10.84 Btuh/Sq.ft Total Heating Required With Outside Air:11,209 Btuh Total Cooling Required With Outside Air:2.58 Tons Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 9 Air Handler #3 - AHU 3 - Summary Loads Rm No Description Room Peak Time Area People Volume Htg.Loss Htg.CFM CFM/Sqft Sen.Gain Clg.CFM CFM/Sqft Lat.Gain S.Exh W.Exh Htg.O.A. Req.CFM Act.CFM Clg.O.A. Req.CFM Act.CFM 19 Showroom / Parts / Service 4pm August 1,010 10 10,100 4,833 224 0.22 22,562 986 0.98 2,000 0 0 Direct 185 158 Direct 185 180 20 Parts Manager 4pm August 99 1 990 1,315 61 0.62 4,181 183 1.85 200 0 0 Direct 18 43 Direct 18 33 21 Service Manager 4pm August 112 1 1,120 1,492 69 0.62 4,362 191 1.70 200 0 0 Direct 21 49 Direct 21 35 22 Tech's 2pm August 143 2 1,430 464 21 0.15 2,268 99 0.69 400 0 0 Direct 26 15 Direct 26 18 23 Tech's Breakroom 2pm August 117 2 1,170 279 13 0.11 1,846 81 0.69 400 0 0 Direct 21 9 Direct 21 15 24 Tech's RR 3pm August 156 2 1,560 779 36 0.23 2,462 108 0.69 400 0 0 Direct 29 26 Direct 29 20 Room Peak Totals: Total Rooms: 6 Unique Rooms: 6 1,637 18 16,370 9,162 425 0.26 37,681 1,647 1.01 3,600 0 0 300 300 300 300 Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc. Fort Pierce Engineering Peterbilt Store Fort Pierce, FL 34950 Page 10 Air Handler #3 - AHU 3 - Total Load Summary Air Handler Description:AHU 3 Constant Volume - Proportion Supply Air Fan:Draw-Thru with program estimated horsepower of 0.16 HP Fan Input:0% motor and fan efficiency with 0 in. water across the fan Sensible Heat Ratio:0.91 --- This system occurs 1 time(s) in the building. --- Air System Peak Time:4pm in August. Outdoor Conditions:Clg: 95° DB, 80° WB, 131.77 grains, Htg: 42° DB Indoor Conditions:Clg: 75° DB, 50% RH, Htg: 75° DB Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air. Room Space sensible loss:9,162 Btuh Infiltration sensible loss:0 Btuh 0 CFM Outside Air sensible loss: 10,682 Btuh 300 CFM Supply Duct sensible loss:0 Btuh Return Duct sensible loss:0 Btuh Return Plenum sensible loss:0 Btuh Total System sensible loss:19,844 Btuh Heating Supply Air: 9,162 / (.999 X 1.08 X 20) =425 CFM Winter Vent Outside Air (70.7% of supply) =300 CFM Room space sensible gain:37,612 Btuh Infiltration sensible gain:0 Btuh Draw-thru fan sensible gain:394 Btuh Supply duct sensible gain:0 Btuh Reserve sensible gain:0 Btuh Total sensible gain on supply side of coil:38,006 Btuh Cooling Supply Air: 38,006 / (.999 X 1.1 X 21) =1,647 CFM Summer Vent Outside Air (18.2% of supply) =300 CFM Return duct sensible gain:0 Btuh Return plenum sensible gain:0 Btuh Outside air sensible gain:6,594 Btuh 300 CFM Blow-thru fan sensible gain:0 Btuh Total sensible gain on return side of coil:6,594 Btuh Total sensible gain on air handling system:44,600 Btuh Room space latent gain:3,600 Btuh Infiltration latent gain:0 Btuh Outside air latent gain:13,520 Btuh Total latent gain on air handling system:17,120 Btuh Total system sensible and latent gain:61,720 Btuh Check Figures Total Air Handler Supply Air (based on a 21° TD):1,647 CFM Total Air Handler Vent. Air (18.22% of Supply):300 CFM Total Conditioned Air Space:1,637 Sq.ft Supply Air Per Unit Area:1.0059 CFM/Sq.ft Area Per Cooling Capacity:318.3 Sq.ft/Ton Cooling Capacity Per Area:0.0031 Tons/Sq.ft Heating Capacity Per Area:12.12 Btuh/Sq.ft Total Heating Required With Outside Air:19,844 Btuh Total Cooling Required With Outside Air:5.14 Tons Z:\Ft Pierce Engineering\21 Projects\21027-01 Peterbilt Store\Calculations\HVAC\Peterbilt Heat Load.CH8 Friday, November 5, 2021, 05:33 PM