1. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Building energy model for the prototypical KSA villa Figure Legend:

2. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Annual variation of outdoor temperature and availability of natural ventilation for a villa located in Riyadh Figure Legend:

3. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Modulation of venting area according to inside–outside temperature difference [25] Figure Legend:

4. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Annual variation of cooling energy use with and without natural ventilation for a villa in Riyadh Figure Legend:

5. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Indoor temperatures for zones 1 and 2 when natural ventilation is applied to cool a villa located in Riyadh Figure Legend:

6. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 The downdraught evaporative cooling system [16] Figure Legend:

7. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Hourly variation for inlet and outlet air temperatures of the PDEC system used to cool a villa during a representative summer day (July 21st) in Riyadh Figure Legend:

8. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Annual variation of the indoor temperature without mechanical cooling and with only PDEC cooling system for a villa in Riyadh Figure Legend:

9. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Annual variation of the cooling energy use associated with HVAC only and HVAC + PDEC systems for a villa located in Riyadh Figure Legend:

10. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Annual variation of the earth tube outlet air temperature, outdoor air temperature, and ground temperature in Riyadh Figure Legend:

11. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Annual cooling energy savings obtained by natural ventilation for five KSA climate zones Figure Legend:

12. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Annual cooling energy savings obtained by using passive evaporative cooling system to cool a villa located in five KSA climate zones Figure Legend:

13. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Comparison of energy consumption of the base case, enhanced building envelope and the building with passive cooling systems in Riyadh Figure Legend:

14. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Peak load for different designs of a villa located in Riyadh. NV: natural ventilation and ECT: evaporative cooling tower. Figure Legend:

15. Date of download: 6/30/2016 Copyright © ASME. All rights reserved. From: Evaluation of Passive Cooling Systems for Residential Buildings in the Kingdom of Saudi Arabia J. Sol. Energy Eng. 2016;138(3):031011-031011-11. doi:10.1115/1.4033112 Hourly electrical energy use and outdoor temperature profiles for four design configurations for a villa in Riyadh: (a) the base case, (b) optimum building envelope design, (c) base case with passive cooling systems, and (d) optimum building envelope design with passive cooling systems Figure Legend: