Heating and air conditioning- load calculation on excel : mechanical engineering only please
Whole
| 1 | Running Feet of Exposed Wall | 120 | Design Conditions | ||||||||||
| 2 | Space Dimensions, ft2 | 756 | Winter : | Outside | 0 | °F | |||||||
| 3 | Ceiling Dimensions ft | 8 | Inside | 70 | °F | ||||||||
| Type | Constr. | HTM | Area | Btuh | T.D. | 70 | °F | ||||||
| of Exposure | No. | Htg. | Clg. | or Length | Htg.(Loss) | Clg.(Gain) | |||||||
| 4 | Gross | a | 960 | Summer: | Outside | 95 | °F | ||||||
| Exposed | b | Inside | 75 | °F | |||||||||
| Walls and | c | T.D. | 20 | °F | |||||||||
| Partitions | d | Daily Range: | M | ||||||||||
| 5 | Windows | a | Tab2 3b | 42.6 | 45 | 1917.00 | Difference of Grains: | 30 | |||||
| and Glass | b | (50% relative humidity) | |||||||||||
| Doors (total 80.3ft x 3ft) | c | ||||||||||||
| (Heating) | d | Heat Loss Infiltration | |||||||||||
| 6 | Windows | North | 0 | 0 | 0 | Winter Cfm= | AC/HR X Volum | ||||||
| and Glass | E&W NE&NW | 46 | 30 | 1380 | 60 | ||||||||
| Doors (double pane; no shading) | South or SE&SW | 25 | 15 | 375 | Winter Cfm= | AC/HR = | 2.2 | (Table 5; under 900 ft^2; poor) | |||||
| (Cooling) | Basement/Other | 0 | 0 | Volum = | 6048.00 | ||||||||
| 7 | Other | a | 11A | 41.3 | 13.9 | 21 | 867.30 | 291.9 | Winter Cfm= | 221.76 | |||
| Doors | b | Tab2 & 4 | 0 | 0 | |||||||||
| 8 | Net | a | Tab2 12E | 5.3 | 1.8 | 894.00 | 4738.20 | 1609.20 | Heat Gain Infiltration | ||||
| Exposed | b | Tab4 12E | 0 | 0 | Summer Cfm= | AC/HR X Volum | |||||||
| Walls and | c | 0 | 0 | 60 | |||||||||
| Partitions | d | 0 | 0 | Summer Cfm= | AC/HR = | 0.8 | (Table 5; under 900 ft^2; poor) | ||||||
| 9 | Ceiling | a | Tab2 16G | 2.3 | 1.5 | 756 | 1738.80 | 1134 | Volum = | 6048.00 | |||
| b | 0 | 0 | Summer Cfm= | 80.64 | |||||||||
| 10 | Floors | a | Tab2 22b | 28.7 | 0 | 120 | 3444.00 | 0 | |||||
| b | Tab4 22b | ||||||||||||
| 11 | Infiltration: Sensible (1.1xcfmxTD) | 17075.52 | 1774.08 | Residential | |||||||||
| 12 | Sub-Total Btuh Loss(5+7+8+9+10+11) | 29780.82 | Number of People = (4) | ||||||||||
| 13 | Duct Btuh Loss | 10% | 2978.08 | ||||||||||
| 14 | Total Btuh Loss (12+13) | 32758.90 | TONS | CFM | |||||||||
| 15 | People at 300 and Appliances at 1200 Btuh (Sensible) | 2400.00 | 1.48 | 592.59 | |||||||||
| 16 | Sub-Sensible Btuh Gain (6+7+8+9+10+11+15) | 8964.18 | 510.3181354307 | ||||||||||
| 17 | Duct Btuh Gain | 10% | 896.42 | ||||||||||
| 18 | Total Sensible Btuh Gain = 16+17 | 9860.60 | |||||||||||
| 19 | Infiltration: Latent Heat (0.68* gr. Diff*summer cfm) | 1645.06 | |||||||||||
| 20 | Internal Loads (230X No. of people (includes appliance ) (Latent) | 920.00 | 2.7299085 | ton | |||||||||
| 21 | LTS (space dimention ft^2 x 3.413) | 2580.23 | 1.4814288333 | ton | |||||||||
| 22 | OA (number of people x cfm/person + cfm/sq ft x floor dimention ft^2) * 42.4 | 2771.26 | |||||||||||
| 23 | Total Cooling Capacity= 18+19+20+21+22(TOTAL GAIN) | 17777.15 | |||||||||||
| 22 | 1.1*TD for summer | ||||||||||||
| 20.4 | 0.68*grain diff | ||||||||||||
| 42.4 |
Zone1
| 1 | Running Feet of Exposed Wall | 54 | Design Conditions | ||||||||||
| 2 | Space Dimensions, ft2 | 324 | Winter : | Outside | 0 | °F | |||||||
| 3 | Ceiling Dimensions ft | 8 | Inside | 70 | °F | ||||||||
| Type | Constr. | HTM | Area | Btuh | T.D. | 70 | °F | ||||||
| of Exposure | No. | Htg. | Clg. | or Length | Htg.(Loss) | Clg.(Gain) | |||||||
| 4 | Gross | a | 432 | Summer: | Outside | 95 | °F | ||||||
| Exposed | b | Inside | 75 | °F | |||||||||
| Walls and | c | T.D. | 20 | °F | |||||||||
| Partitions | d | Daily Range: | M | ||||||||||
| 5 | Windows | a | Tab2 3b | 42.6 | 15 | 639.00 | Difference of Grains: | 30 | |||||
| and Glass | b | (50% relative humidity) | |||||||||||
| Doors (total 80.3ft x 3ft) | c | ||||||||||||
| (Heating) | d | Heat Loss Infiltration | |||||||||||
| 6 | Windows | North | 0 | 0 | 0 | Winter Cfm= | AC/HR X Volum | ||||||
| and Glass | E&W NE&NW | 0 | 0 | 0 | 60 | ||||||||
| Doors (double pane; no shading) | South or SE&SW | 25 | 15 | 375 | Winter Cfm= | AC/HR = | 2.2 | (Table 5; under 900 ft^2; poor) | |||||
| (Cooling) | Basement/Other | 0 | 0 | Volum = | 2592.00 | ||||||||
| 7 | Other | a | 11A | 41.3 | 13.9 | 21 | 867.30 | 291.9 | Winter Cfm= | 95.04 | |||
| Doors | b | Tab2 & 4 | 0 | 0 | |||||||||
| 8 | Net | a | Tab2 12E | 5.3 | 1.8 | 396.00 | 2098.80 | 712.80 | Heat Gain Infiltration | ||||
| Exposed | b | Tab4 12E | 0 | 0 | Summer Cfm= | AC/HR X Volum | |||||||
| Walls and | c | 0 | 0 | 60 | |||||||||
| Partitions | d | 0 | 0 | Summer Cfm= | AC/HR = | 0.8 | (Table 5; under 900 ft^2; poor) | ||||||
| 9 | Ceiling | a | Tab2 16G | 2.3 | 1.5 | 324 | 745.20 | 486 | Volum = | 2592.00 | |||
| b | 0 | 0 | Summer Cfm= | 34.56 | |||||||||
| 10 | Floors | a | Tab2 22b | 28.7 | 0 | 54 | 1549.80 | 0 | |||||
| b | Tab4 22b | ||||||||||||
| 11 | Infiltration: Sensible (1.1xcfmxTD) | 7318.08 | 760.32 | Residential | |||||||||
| 12 | Sub-Total Btuh Loss(5+7+8+9+10+11) | 13218.18 | Number of People = (4) | ||||||||||
| 13 | Duct Btuh Loss | 10% | 1321.82 | ||||||||||
| 14 | Total Btuh Loss (12+13) | 14540.00 | TONS | CFM | |||||||||
| 15 | People at 300 and Appliances at 1200 Btuh (Sensible) | 1200.00 | 0.57 | 228.13 | |||||||||
| 16 | Sub-Sensible Btuh Gain (6+7+8+9+10+11+15) | 3826.02 | 568.1125774689 | ||||||||||
| 17 | Duct Btuh Gain | 10% | 382.60 | ||||||||||
| 18 | Total Sensible Btuh Gain = 16+17 | 4208.62 | |||||||||||
| 19 | Infiltration: Latent Heat (0.68* gr. Diff*summer cfm) | 705.02 | |||||||||||
| 20 | Internal Loads (230X No. of people (includes appliance ) (Latent) | 0.00 | 1.2116665 | ton | |||||||||
| 21 | LTS (space dimention ft^2 x 3.413) | 1105.81 | 0.5703095 | ton | |||||||||
| 22 | OA (number of people x cfm/person + cfm/sq ft x floor dimention ft^2) * 42.4 | 824.26 | |||||||||||
| 23 | Total Cooling Capacity= 18+19+20+21+22(TOTAL GAIN) | 6843.71 | |||||||||||
| 22 | 1.1*TD for summer | ||||||||||||
| 20.4 | 0.68*grain diff | ||||||||||||
| 42.4 |
Zone2
| 1 | Running Feet of Exposed Wall | 12 | Design Conditions | ||||||||||
| 2 | Space Dimensions, ft2 | 144 | Winter : | Outside | 0 | °F | |||||||
| 3 | Ceiling Dimensions ft | 8 | Inside | 70 | °F | ||||||||
| Type | Constr. | HTM | Area | Btuh | T.D. | 70 | °F | ||||||
| of Exposure | No. | Htg. | Clg. | or Length | Htg.(Loss) | Clg.(Gain) | |||||||
| 4 | Gross | a | 96 | Summer: | Outside | 95 | °F | ||||||
| Exposed | b | Inside | 75 | °F | |||||||||
| Walls and | c | T.D. | 20 | °F | |||||||||
| Partitions | d | Daily Range: | M | ||||||||||
| 5 | Windows | a | Tab2 3b | 42.6 | 15 | 639.00 | Difference of Grains: | 30 | |||||
| and Glass | b | (50% relative humidity) | |||||||||||
| Doors (total 80.3ft x 3ft) | c | ||||||||||||
| (Heating) | d | Heat Loss Infiltration | |||||||||||
| 6 | Windows | North | 0 | 0 | 0 | Winter Cfm= | AC/HR X Volum | ||||||
| and Glass | E&W NE&NW | 46 | 15 | 690 | 60 | ||||||||
| Doors (double pane; no shading) | South or SE&SW | 0 | 0 | 0 | Winter Cfm= | AC/HR = | 2.2 | (Table 5; under 900 ft^2; poor) | |||||
| (Cooling) | Basement/Other | 0 | 0 | Volum = | 1152.00 | ||||||||
| 7 | Other | a | 11A | 41.3 | 13.9 | 0 | 0.00 | 0 | Winter Cfm= | 42.24 | |||
| Doors | b | Tab2 & 4 | 0 | 0 | |||||||||
| 8 | Net | a | Tab2 12E | 5.3 | 1.8 | 81.00 | 429.30 | 145.80 | Heat Gain Infiltration | ||||
| Exposed | b | Tab4 12E | 0 | 0 | Summer Cfm= | AC/HR X Volum | |||||||
| Walls and | c | 0 | 0 | 60 | |||||||||
| Partitions | d | 0 | 0 | Summer Cfm= | AC/HR = | 0.8 | (Table 5; under 900 ft^2; poor) | ||||||
| 9 | Ceiling | a | Tab2 16G | 2.3 | 1.5 | 144 | 331.20 | 216 | Volum = | 1152.00 | |||
| b | 0 | 0 | Summer Cfm= | 15.36 | |||||||||
| 10 | Floors | a | Tab2 22b | 28.7 | 0 | 12 | 344.40 | 0 | |||||
| b | Tab4 22b | ||||||||||||
| 11 | Infiltration: Sensible (1.1xcfmxTD) | 3252.48 | 337.92 | Residential | |||||||||
| 12 | Sub-Total Btuh Loss(5+7+8+9+10+11) | 4996.38 | Number of People = (4) | ||||||||||
| 13 | Duct Btuh Loss | 10% | 499.64 | ||||||||||
| 14 | Total Btuh Loss (12+13) | 5496.02 | TONS | CFM | |||||||||
| 15 | People at 300 and Appliances at 1200 Btuh (Sensible) | 600.00 | 0.35 | 141.46 | |||||||||
| 16 | Sub-Sensible Btuh Gain (6+7+8+9+10+11+15) | 1989.72 | 407.1780206813 | ||||||||||
| 17 | Duct Btuh Gain | 10% | 198.97 | ||||||||||
| 18 | Total Sensible Btuh Gain = 16+17 | 2188.69 | |||||||||||
| 19 | Infiltration: Latent Heat (0.68* gr. Diff*summer cfm) | 313.34 | |||||||||||
| 20 | Internal Loads (230X No. of people (includes appliance ) (Latent) | 460.00 | 0.4580015 | ton | |||||||||
| 21 | LTS (space dimention ft^2 x 3.413) | 491.47 | 0.3536536667 | ton | |||||||||
| 22 | OA (number of people x cfm/person + cfm/sq ft x floor dimention ft^2) * 42.4 | 790.34 | |||||||||||
| 23 | Total Cooling Capacity= 18+19+20+21+22(TOTAL GAIN) | 4243.84 | |||||||||||
| 22 | 1.1*TD for summer | ||||||||||||
| 20.4 | 0.68*grain diff | ||||||||||||
| 42.4 |
Zone3
| 1 | Running Feet of Exposed Wall | 24 | Design Conditions | ||||||||||
| 2 | Space Dimensions, ft2 | 144 | Winter : | Outside | 0 | °F | |||||||
| 3 | Ceiling Dimensions ft | 8 | Inside | 70 | °F | ||||||||
| Type | Constr. | HTM | Area | Btuh | T.D. | 70 | °F | ||||||
| of Exposure | No. | Htg. | Clg. | or Length | Htg.(Loss) | Clg.(Gain) | |||||||
| 4 | Gross | a | 192 | Summer: | Outside | 95 | °F | ||||||
| Exposed | b | Inside | 75 | °F | |||||||||
| Walls and | c | T.D. | 20 | °F | |||||||||
| Partitions | d | Daily Range: | M | ||||||||||
| 5 | Windows | a | Tab2 3b | 42.6 | 15 | 639.00 | Difference of Grains: | 30 | |||||
| and Glass | b | (50% relative humidity) | |||||||||||
| Doors (total 80.3ft x 3ft) | c | ||||||||||||
| (Heating) | d | Heat Loss Infiltration | |||||||||||
| 6 | Windows | North | 0 | 0 | 0 | Winter Cfm= | AC/HR X Volum | ||||||
| and Glass | E&W NE&NW | 46 | 15 | 690 | 60 | ||||||||
| Doors (double pane; no shading) | South or SE&SW | 0 | 0 | 0 | Winter Cfm= | AC/HR = | 2.2 | (Table 5; under 900 ft^2; poor) | |||||
| (Cooling) | Basement/Other | 0 | 0 | Volum = | 1152.00 | ||||||||
| 7 | Other | a | 11A | 41.3 | 13.9 | 0 | 0.00 | 0 | Winter Cfm= | 42.24 | |||
| Doors | b | Tab2 & 4 | 0 | 0 | |||||||||
| 8 | Net | a | Tab2 12E | 5.3 | 1.8 | 177.00 | 938.10 | 318.60 | Heat Gain Infiltration | ||||
| Exposed | b | Tab4 12E | 0 | 0 | Summer Cfm= | AC/HR X Volum | |||||||
| Walls and | c | 0 | 0 | 60 | |||||||||
| Partitions | d | 0 | 0 | Summer Cfm= | AC/HR = | 0.8 | (Table 5; under 900 ft^2; poor) | ||||||
| 9 | Ceiling | a | Tab2 16G | 2.3 | 1.5 | 144 | 331.20 | 216 | Volum = | 1152.00 | |||
| b | 0 | 0 | Summer Cfm= | 15.36 | |||||||||
| 10 | Floors | a | Tab2 22b | 28.7 | 0 | 24 | 688.80 | 0 | |||||
| b | Tab4 22b | ||||||||||||
| 11 | Infiltration: Sensible (1.1xcfmxTD) | 3252.48 | 337.92 | Residential | |||||||||
| 12 | Sub-Total Btuh Loss(5+7+8+9+10+11) | 5849.58 | Number of People = (4) | ||||||||||
| 13 | Duct Btuh Loss | 10% | 584.96 | ||||||||||
| 14 | Total Btuh Loss (12+13) | 6434.54 | TONS | CFM | |||||||||
| 15 | People at 300 and Appliances at 1200 Btuh (Sensible) | 600.00 | 0.37 | 147.80 | |||||||||
| 16 | Sub-Sensible Btuh Gain (6+7+8+9+10+11+15) | 2162.52 | 389.7225121585 | ||||||||||
| 17 | Duct Btuh Gain | 10% | 216.25 | ||||||||||
| 18 | Total Sensible Btuh Gain = 16+17 | 2378.77 | |||||||||||
| 19 | Infiltration: Latent Heat (0.68* gr. Diff*summer cfm) | 313.34 | |||||||||||
| 20 | Internal Loads (230X No. of people (includes appliance ) (Latent) | 460.00 | 0.5362115 | ton | |||||||||
| 21 | LTS (space dimention ft^2 x 3.413) | 491.47 | 0.3694936667 | ton | |||||||||
| 22 | OA (number of people x cfm/person + cfm/sq ft x floor dimention ft^2) * 42.4 | 790.34 | |||||||||||
| 23 | Total Cooling Capacity= 18+19+20+21+22(TOTAL GAIN) | 4433.92 | |||||||||||
| 22 | 1.1*TD for summer | ||||||||||||
| 20.4 | 0.68*grain diff | ||||||||||||
| 42.4 |
Zone4
| 1 | Running Feet of Exposed Wall | 30 | Design Conditions | |||||||||||||
| 2 | Space Dimensions, ft2 | 144 | Winter : | Outside | 0 | °F | ||||||||||
| 3 | Ceiling Dimensions ft | 8 | Inside | 70 | °F | |||||||||||
| Type | Constr. | HTM | Area | Btuh | T.D. | 70 | °F | |||||||||
| of Exposure | No. | Htg. | Clg. | or Length | Htg.(Loss) | Clg.(Gain) | ||||||||||
| 4 | Gross | a | 240 | Summer: | Outside | 95 | °F | |||||||||
| Exposed | b | Inside | 75 | °F | ||||||||||||
| Walls and | c | T.D. | 20 | °F | ||||||||||||
| Partitions | d | Daily Range: | M | |||||||||||||
| 5 | Windows | a | Tab2 3b | 42.6 | 0 | 0.00 | Difference of Grains: | 30 | ||||||||
| and Glass | b | (50% relative humidity) | ||||||||||||||
| Doors (total 80.3ft x 3ft) | c | |||||||||||||||
| (Heating) | d | Heat Loss Infiltration | ||||||||||||||
| 6 | Windows | North | 0 | 0 | 0 | Winter Cfm= | AC/HR X Volum | |||||||||
| and Glass | E&W NE&NW | 0 | 0 | 0 | 60 | |||||||||||
| Doors (double pane; no shading) | South or SE&SW | 0 | 0 | 0 | Winter Cfm= | AC/HR = | 2.2 | (Table 5; under 900 ft^2; poor) | ||||||||
| (Cooling) | Basement/Other | 0 | 0 | Volum = | 1152.00 | |||||||||||
| 7 | Other | a | 11A | 41.3 | 13.9 | 0 | 0.00 | 0 | Winter Cfm= | 42.24 | ||||||
| Doors | b | Tab2 & 4 | 0 | 0 | ||||||||||||
| 8 | Net | a | Tab2 12E | 5.3 | 1.8 | 240.00 | 1272.00 | 432.00 | Heat Gain Infiltration | |||||||
| Exposed | b | Tab4 12E | 0 | 0 | Summer Cfm= | AC/HR X Volum | ||||||||||
| Walls and | c | 0 | 0 | 60 | ||||||||||||
| Partitions | d | 0 | 0 | Summer Cfm= | AC/HR = | 0.8 | (Table 5; under 900 ft^2; poor) | |||||||||
| 9 | Ceiling | a | Tab2 16G | 2.3 | 1.5 | 144 | 331.20 | 216 | Volum = | 1152.00 | ||||||
| b | 0 | 0 | Summer Cfm= | 15.36 | ||||||||||||
| 10 | Floors | a | Tab2 22b | 28.7 | 0 | 30 | 861.00 | 0 | ||||||||
| b | Tab4 22b | |||||||||||||||
| 11 | Infiltration: Sensible (1.1xcfmxTD) | 3252.48 | 337.92 | Residential | ||||||||||||
| 12 | Sub-Total Btuh Loss(5+7+8+9+10+11) | 5716.68 | Number of People = (4) | |||||||||||||
| 13 | Duct Btuh Loss | 10% | 571.67 | |||||||||||||
| 14 | Total Btuh Loss (12+13) | 6288.35 | TONS | CFM | ||||||||||||
| 15 | People at 300 and Appliances at 1200 Btuh (Sensible) | 0.00 | 0.19 | 75.19 | ||||||||||||
| 16 | Sub-Sensible Btuh Gain (6+7+8+9+10+11+15) | 985.92 | 766.0715425702 | |||||||||||||
| 17 | Duct Btuh Gain | 10% | 98.59 | Htg Load | 32758.90 | 32758.902 | ||||||||||
| 18 | Total Sensible Btuh Gain = 16+17 | 1084.51 | Clg Load | 17777.15 | 17777.146 | |||||||||||
| 19 | Infiltration: Latent Heat (0.68* gr. Diff*summer cfm) | 313.34 | ||||||||||||||
| 20 | Internal Loads (230X No. of people (includes appliance ) (Latent) | 0.00 | 0.524029 | ton | ||||||||||||
| 21 | LTS (space dimention ft^2 x 3.413) | 491.47 | 0.187972 | ton | ||||||||||||
| 22 | OA (number of people x cfm/person + cfm/sq ft x floor dimention ft^2) * 42.4 | 366.34 | ||||||||||||||
| 23 | Total Cooling Capacity= 18+19+20+21+22(TOTAL GAIN) | 2255.66 | ||||||||||||||
| 22 | 1.1*TD for summer | |||||||||||||||
| 20.4 | 0.68*grain diff | |||||||||||||||
| 42.4 |