Development of control algorithms for optimal thermal environment of double skin envelope buildings in summer

The results indicate that the algorithm employing FL to operate cooling systems created the most acceptable and stable indoor temperature in which 99.98% of the test period was within the target indoor temperature with the narrowest ranges. Compared to other algorithms, the FL-based control algorithm for cooling system can potentially improve building energy efficiency demonstrating an amount of reduction in heat removal up to 49.4%. The ANN-based and ANFIS-based algorithms operated the cooling system more stably and effectively reduced the number of times that the cooling system was turned on and off.