Climate Analysis

The Weather Tool

Location data

Solar position

Psychrometry

Wind analysis

Hourly/ weekly/ monthly data

The Four Environmental Factors• Air Temperature (or dry-bulb temperature) • Relative Humidity %• Mean Radiant Temperature • Air Speed m/s

Introduction

Climate Analysis

Climate Analysis

N

15°

30°

45°

60°

75°

90°

105°

120°

135°

150°

165°

180°

195°

210°

225°

240°

255°

270°

285°

300°

315°

330°

345°

Best

Worst

kWh/m²

4.50

4.00

3.50

3.00

2.50

2.00

1.50

1.00

0.50

Compromise: 177.5°

87.5°

Annual AverageUnderheated PeriodOverheated Period

Optimum OrientationLocation: ABU DHABI, ARE Orientation based on average daily incidentradiation on a vertical surface.Underheated Stress: 0.0Overheated Stress: 2206.6Compromise: 177.5°© W eather T ool

Avg. Daily Radiation at 177.0°Entire Year: 1.92 kWh/m²Underheated: 3.51 kWh/m²Overheated: 0.31 kWh/m²

Climate Analysis

Psycrometry

London Abu Dhabi

• Higher dry-bulb temperature• Lower relative humidity

Improvements from Passive Design

Techniques • Thermal mass

• Exposed mass & night purge ventilation

• Natural ventilation

• Indirect evaporative cooling

Combined Effect of Passive Design Techniques

Effects of Passive Design Techniques on Comfort Zone

Wind Analysis

Prevailing winds• Mainly northwest• Strongest winds are east

Wind Analysis

Cooler evening/winter winds

Hot daytime/summer winds

Wind Analysis

Hourly Data (Temperature)

• Subtropical (hot & humid) climate,• Warm Winters and hot summers• 13° < Temperature < 52°• 25% < Relative humidity < 87%• High direct solar radiation throughout the year

Weekly Data

Climate Analysis

Abu Dhabi London

Monthly Data