The preference for AC temperature can vary depending on individual comfort and personal preferences. However, generally speaking, an AC temperature of 24 degrees Celsius is likely to provide a cooler and more comfortable indoor environment compared to using the AC at 28 degrees Celsius along with a fan.
Here's why:
Cooling Effect: Air conditioning systems work by removing heat from the indoor environment and lowering the temperature. Setting the AC to 24 degrees Celsius allows the system to cool the air more effectively, providing a noticeable temperature drop and a more refreshing feeling.
Thermal Comfort: According to standard recommendations for thermal comfort, a temperature range of 23-25 degrees Celsius is considered comfortable for most individuals in a typical indoor setting. Setting the AC to 24 degrees Celsius falls within this range and is generally considered conducive to maintaining comfort.
Air Circulation: While using a fan along with the AC at 28 degrees Celsius can help improve air circulation and create a breeze, it may not provide the same cooling effect as lowering the AC temperature. Fans do not actually cool the air but create a perceived cooling effect by evaporating moisture from the skin. Therefore, relying solely on a fan may not be sufficient to achieve the same level of comfort as a lower AC temperature.
Ultimately, the best AC temperature setting depends on individual preferences, the outside temperature, humidity levels, and factors such as insulation and airflow in the space. It's important to find a balance that provides both comfort and energy efficiency, considering the local climate and personal comfort requirements.