Abstract
It is especially difficult to provide optimal microclimatic conditions in sports facilities during summer time. The internal heat gains and an airtight building insulation, combined with high external temperature can easily lead to overheating and upsetting of the body's thermal balance. This article focuses primarily on the effect of natural night ventilation on the thermal comfort in a passive sports hall building. Based on experimental studies of thermal conditions in the hall, a simulation model was made using the Design Builder program. Through simulation analysis, the program considered thermal conditions that arise in various scenarios of natural and mechanical ventilation. Results presented in this article show that the natural ventilation at night in a large volume building is the most effective and the easiest way to reduce overheating in summer.
Highlights
Global warming and the extreme weather phenomena that have been intensifying in recent years affect all walks of our lives directly or indirectly
Energy costs of mechanical cooling are minimized by night ventilation, and the reduced temperature of roomy enclosures can help in achieving thermal comfort during the hot day [1,2,3,4]
The simulations carried out regarding the impact of night ventilation and mechanical ventilation on thermal comfort in the interior of a passive sports hall in Cracow allowed the formulation of the following conclusions:
Summary
Global warming and the extreme weather phenomena that have been intensifying in recent years affect all walks of our lives directly or indirectly. It has become necessary to implement all solutions that allow for the design and operation of energy-efficient and ecological buildings, while ensuring adequate quality of the internal environment. Sports facilities with their specific microclimatic requirements due to the required operating temperature and physical activity of users pose a serious challenge for investors and managers. The additional criterion of low energy consumption in extremely tight and well insulated buildings often causes overheating of the interior. This leads to the users' discomfort and negative social attitude towards such technologies.
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