Design Weather Parameters
Project: chimtala 04/15/2025
Prepared by: Novin Simia 11:53 AM
Design Parameters:
Location Kabul, Afghanistan
Latitude 34.60 °N ( + : north, - : south )
Longitude 69.20 °E ( + : east, - : west )
Elevation 1862.0 m
Climate Zone 4A - Mixed Humid
Local Time Zone 4.5 hours from GMT ( + : east, - : west )
Summer Design Condition User Defined
Summer Coincident Dry-Bulb 34.0 C
Summer Design Wet-Bulb 15.6 C
Summer Daily Range 15.0 K
Hottest Month July
Winter Design Condition User Defined
Winter Design Dry-Bulb -8.0 C
Winter Design Wet-Bulb -8.0 C
Outdoor Air CO2 Level 400 ppm
Average Ground Reflectance 0.20
Soil Conductivity 1.385 W/(m K)
Design Cooling Months January to December
Consider Daylight Savings Time No
Simulation Weather Data Kabul Karzai Intl AP (TMYx_2004_2018)
Current Data is User Defined
Design Day Maximum Solar Fluxes
(The flux values are expressed in W/sqm )
Month N NNE NE ENE E ESE SE SSE S
January 77.7 77.7 121.0 399.8 623.3 806.8 900.6 925.3 914.4
February 96.3 96.3 231.5 496.4 695.3 819.3 872.7 854.5 827.9
March 112.5 146.6 376.2 579.2 743.1 804.7 796.4 730.7 683.3
April 124.0 277.3 505.7 667.2 746.8 759.6 672.9 564.8 506.9
May 168.1 379.1 582.0 713.4 747.5 701.6 581.2 436.9 369.9
June 203.1 407.7 598.9 710.4 725.3 667.2 532.8 382.5 312.2
July 166.9 373.9 568.6 687.6 720.3 684.6 560.6 427.4 357.2
August 120.2 278.9 501.3 656.8 739.0 746.8 661.7 553.2 492.6
September 106.5 141.4 390.5 596.4 736.5 812.1 782.7 714.9 674.6
October 91.9 91.9 244.1 463.6 669.4 801.6 843.8 826.8 810.0
November 76.6 76.6 137.4 360.0 603.9 762.7 869.5 892.3 889.2
December 70.9 70.9 91.7 341.9 577.5 763.3 881.6 922.1 920.1
Month SSW SW WSW W WNW NW NNW HOR Mult
January 926.5 904.2 800.9 631.2 396.8 133.2 77.7 620.3 1.00
February 854.6 874.4 817.4 700.2 485.1 252.2 96.3 751.7 1.00
March 730.4 796.0 806.2 742.6 576.9 377.8 145.0 866.6 1.00
April 569.0 680.3 757.6 757.8 655.3 502.7 288.0 959.5 1.00
May 441.6 581.4 705.4 748.7 702.6 584.7 387.8 999.8 1.00
June 386.0 530.9 669.6 724.3 705.7 600.4 414.6 998.4 1.00
July 427.7 561.1 684.7 721.0 687.0 568.6 374.5 979.1 1.00
August 554.9 664.8 746.3 743.6 650.5 500.6 283.4 939.8 1.00
September 719.8 791.1 799.1 749.4 595.1 378.7 157.4 858.6 1.00
October 826.2 838.0 801.7 653.4 477.3 235.2 91.9 723.8 1.00
November 884.0 861.9 775.0 593.9 368.1 132.4 76.6 600.8 1.00
December 917.3 870.0 771.9 565.6 342.3 88.3 70.9 558.0 1.00
Mult. = User-defined solar multiplier factor.
Hourly Analysis Program 6.2 Page 1 of 1
Ventilation Sizing Summary for AC SPLIT UNIT
(In Alternative: CONTROL BUILDING)
Project: chimtala 04/15/2025
Prepared by: Novin Simia 11:55 AM
1. Summary
Ventilation Sizing Method ASHRAE Standard 62.1-2019
Design Condition Cooling operation
Occupant Diversity (D) 1.000
Uncorrected Outdoor Air Intake (Vou) 0 L/s
System Ventilation Efficiency (Ev) 1.000
Outdoor Air Intake (Vot) 0 L/s
2. Space Ventilation Analysis
Time People Breathing
Space Floor Area Outdoor Averaged Outdoor Air Air Space Zone Space
Supply Air Area Air Rate Occupancy Rate Distribution Outdoor Air Outdoor Air Ventilation
(L/s) (sqm) (L/(s sqm)) (Occupants) (L/s/person) Effectiveness (L/s) (L/s) Efficiency
Zone Name / Space Name (Vpz) (Az) (Ra) (Pz) (Rp) (Ez) (Voz) (Vbz) (Evz)
Zone 1
BATTERY ROOM 325 25.8 0.00 0.0 0.00 1.00 0 0 1.000
CONTROL ROOM 1109 83.8 0.00 1.0 0.00 1.00 0 0 1.000
Totals 1434 0 1.000
Hourly Analysis Program 6.2 Page 2 of 7
Space Heat Balance Summary for AC SPLIT UNIT
(In Alternative: CONTROL BUILDING)
Project: chimtala 04/15/2025
Prepared by: Novin Simia 11:43 AM
Table 1. Heat Balance Loads for Space CONTROL ROOM in Zone Zone 1
DESIGN COOLING - JULY 15:00 DESIGN HEATING
OA DB / WB 34.0 C / 15.6 C OA DB / WB -8.0 C / -8.0 C
OCCUPIED T-STAT 23.9 C OCCUPIED T-STAT 21.1 C
INDOOR DB 23.9 C INDOOR DB 21.1 C
Sensible Latent Sensible Latent
Space Heat Balance Component Details Details
[W] [W] [W] [W]
Exterior Wall Convection 86 sqm 808 - 86 sqm 912 -
Roof Convection 84 sqm 1065 - 84 sqm 1164 -
Window Convection 13 sqm 610 - 13 sqm 1317 -
Skylight Convection 0 sqm 0 - 0 sqm 0 -
Door Convection 10 sqm 511 - 10 sqm 422 -
Floor Convection 84 sqm 1017 - 84 sqm 1661 -
Interior Wall Convection 19 sqm 126 - 19 sqm 93 -
Ceiling Convection 0 sqm 0 - 0 sqm 0 -
Overhead Lighting Convection 385 W 241 - 0W 0 -
Task Lighting Convection 0W 0 - 0W 0 -
Electric Equipment Convection 1750 W 1313 - 0W 0 -
People Convection 1 22 60 0 0 0
Infiltration 0 L/s 0 0 0 L/s 0 0
Miscellaneous Equipment - 0 0 - 0 0
Air Internal Energy Change 0.0K 0 - 0 0
Safety Factor 0% / 0% 0 0 0% 0 0
>> Total Space Loads - 5712 60 - 5569 0
Positive values are cooling loads Positive values are heating loads
Key:
Negative values are heating loads Negative values are cooling loads
Note 1: Surface convection line items show the combined effects of conductive heat gain to the surface and radiative heat gains absorbed
at the surface which are then convected to room air.
Note 2: Lighting, equipment, and people line items include only the direct convective heat gain from the heat source to the room air. The
radiative portion of the heat gain is first absorbed by surfaces in the room and then later convected from the surface to the air.
Therefore the effect of the radiative portion of the heat gain is found in the surface convection line items.
Note 3: Solar heat gain is absorbed by surfaces in the room, re-radiated to other surfaces, and finally convected from the surfaces to room
air. Therefore, the effect of solar heat gain is found in the surface convection line items.
Hourly Analysis Program 6.2 Page 4 of 6
Space Heat Balance Summary for AC SPLIT UNIT
(In Alternative: CONTROL BUILDING)
Project: chimtala 04/15/2025
Prepared by: Novin Simia 11:43 AM
Table 1. Heat Balance Loads for Space BATTERY ROOM in Zone Zone 1
DESIGN COOLING - JULY 15:00 DESIGN HEATING
OA DB / WB 34.0 C / 15.6 C OA DB / WB -8.0 C / -8.0 C
OCCUPIED T-STAT 23.9 C OCCUPIED T-STAT 21.1 C
INDOOR DB 23.9 C INDOOR DB 21.1 C
Sensible Latent Sensible Latent
Space Heat Balance Component Details Details
[W] [W] [W] [W]
Exterior Wall Convection 39 sqm 171 - 39 sqm 369 -
Roof Convection 26 sqm 159 - 26 sqm 304 -
Window Convection 0 sqm 0 - 0 sqm 0 -
Skylight Convection 0 sqm 0 - 0 sqm 0 -
Door Convection 8 sqm 277 - 8 sqm 312 -
Floor Convection 26 sqm 88 - 26 sqm 531 -
Interior Wall Convection 19 sqm 59 - 19 sqm 79 -
Ceiling Convection 0 sqm 0 - 0 sqm 0 -
Overhead Lighting Convection 119 W 74 - 0W 0 -
Task Lighting Convection 0W 0 - 0W 0 -
Electric Equipment Convection 0W 0 - 0W 0 -
People Convection 0 0 0 0 0 0
Infiltration 0 L/s 0 0 0 L/s 0 0
Miscellaneous Equipment - 0 0 - 0 0
Air Internal Energy Change 0.0K 0 - 0 0
Safety Factor 0% / 0% 0 0 0% 0 0
>> Total Space Loads - 829 0 - 1595 0
Positive values are cooling loads Positive values are heating loads
Key:
Negative values are heating loads Negative values are cooling loads
Note 1: Surface convection line items show the combined effects of conductive heat gain to the surface and radiative heat gains absorbed
at the surface which are then convected to room air.
Note 2: Lighting, equipment, and people line items include only the direct convective heat gain from the heat source to the room air. The
radiative portion of the heat gain is first absorbed by surfaces in the room and then later convected from the surface to the air.
Therefore the effect of the radiative portion of the heat gain is found in the surface convection line items.
Note 3: Solar heat gain is absorbed by surfaces in the room, re-radiated to other surfaces, and finally convected from the surfaces to room
air. Therefore, the effect of solar heat gain is found in the surface convection line items.
Hourly Analysis Program 6.2 Page 3 of 6
