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Reverse jet ventilation and heat recovery energy efficient as a new design solution for large multi-level parking lots

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During the heating period the heating of the air in residential and public buildings, industrial plants is at least 25–55 % of the consumed heat [1, 2]. Measures to reduce energy consumption by utilizing heat emitted into the environment with the exhaust air have led to the development of various type of heat exchangers [2], which became a trend in the creation of ventilation units, equipped with such devices. Another, alternative way to save energy was the use of recirculation in ventilation systems that allow re-use already heated to the desired temperature air from the exhaust duct, mixing it with the supply air. A prerequisite for the use of recycling exceeded the actual supply airflow to the calculated value due to the need to reduce the concentration of harmful substances in the air of the room to an acceptable level.

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