Summer season temperature control in Finnish apartment buildings

In modern apartment buildings with good insulation and heat recovery, often having large windows and high internal heat gains, overheating may be a serious problem not only in summer season, but also during heating season. This study determined the design curves for the assessment of room temperatures and cooling demand in apartments. The design curves are based on many simulations and they show the effects of window airing, solar protection glasses, window size and orientation, cooled supply air and room conditioning. Determined graphs allow to check quickly the thermal comfort in apartments and this will be a step forward from todays practice not to do such check. They suit well for preliminary design and are useful for architects and HVAC-consultants not using indoor climate and energy simulation software.