Mosques have intermittent operational schedules with short-term occupancy during the five daily prayers. The occupancy level of the daily prayers is a fraction compared to the mandatory Friday prayers with full occupancy. Usually, the same thermal control mechanism is operated within the same large prayer hall to maintain the thermal comfort of the occupants. Yet, the comfort requirements are often not met due to the short span of operation during prayer times. Nevertheless, mosques have a very high energy usage as the same energy-intensive system is operated even during minimal occupancy profiles. The current research aims at using a passive approach towards design to achieve the comfort conditions during the low occupancy daily prayer times without employing mechanical intervention. Numerical simulations are carried out on a validated model of the case study building to investigate the impact of the west-facing Qiblah wall as the congregation stands in proximity to this wall. The design alternatives are tested in conjunction with ventilation strategies to holistically assess the thermal comfort of the occupants. Results show that as much as 4–6 °C reduction in indoor wall surface temperature can be achieved with a suitable Qiblah wall design, which reduces the mean radiant temperature of the occupants by 2–4 °C. Combined with ventilation strategies, thermal comfort can be significantly improved by at least 40% for the prayers during the hottest times of the day, and as much as 80% for night-time prayers. Results suggest that suitable comfort conditions can be achieved without the need for air-conditioning for at least two or three of the five daily prayers.

清真寺有间歇性的运营时间表，在每日五次祈祷期间有短期占用。与完全占用的强制性星期五祈祷相比，每日祈祷的占用率只是一小部分。通常，相同的热控制机制在同一个大型祈祷厅内运行，以保持居住者的热舒适度。然而，由于祈祷时间的操作跨度短，舒适性要求往往得不到满足。然而，清真寺的能源使用量非常高，因为即使在占用率最低的情况下，同样的能源密集型系统也会运行。目前的研究旨在采用被动设计方法，在不使用机械干预的情况下，在低入住率的每日祈祷时间内实现舒适条件。会众站在朝拜墙附近。设计备选方案与通风策略一起进行测试，以全面评估居住者的热舒适度。结果表明，通过合适的Qiblah墙设计，室内墙面温度最多可降低 4–6 °C ，从而使居住者的平均辐射温度降低 2–4 °C。结合通风策略，一天中最热时段的祈祷热舒适度可显着提高至少 40%，夜间祈祷的热舒适度可提高 80%。结果表明，在每天五次祈祷中的至少两三次不需要空调的情况下，可以达到合适的舒适条件。