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Occupancy impact on the indoor air quality of the monitored open-offices

Motuzienė Violeta, Lapinskienė Vilūnė, Rynkun Genrika

Journal of New Technologies in Environmental Science

2022

Vol. 6, nr 1

28--35

Humans spend 90% of their time indoors therefore proper air quality in buildings is crucial for human health and productivity. The problem with poor air quality is usually found in buildings with no mechanical ventilation. Contrary, modern office buildings, which are usually equipped with mechanical ventilation, are often over-ventilated. The reason is usually related to lower-than-designed buildings’ occupancies. In the context of a pandemic, the occupancy of the buildings has significantly decreased, meanwhile the ventilation systems often operate at the design air flow rates thus causing a waste of energy. The paper presents long-term occupancy and CO2 concentration monitoring results for 4 office buildings. All of the buildings showed very low occupancies and over-ventilation of the rooms. Seeking to decarbonize the buildings sector much is done to strengthen the requirements for energy efficiency of buildings, but the results of the study prove once more that the potential of better building energy using systems management is still unexploited.

Performance assessment of balance algorithm based motorway car park occupancy information system

Karkowski Michał, Grondys Katarzyna

Polish Journal of Management Studies

2021

Vol. 24, No. 2

178--193

Parking lots are part of the national transport system. Their availability and structure affect the smoothness of vehicle traffic. The use of innovative solutions in this area aims to improve the quality of movement also for lorries. Therefore, the aim of this article was to investigate parking management systems. The study used a method of assessment of entry/exit balancing algorithm based motorway car park occupancy information systems has been proposed. Adequate criteria and quality measures have been indicated; procedures of setting the measures in the process of the system's certification and their applicability to selected NeuroCar Park Balance installations have been described. External factors influencing the efficiency of the systems and recommendations concerning verification procedures in commercial conditions have also been referred to. The benefits and difficulties of applying a management system for parking lots for trucks on the route were identified based on the measurements made.

Parkingi są częścią krajowego systemu transportowego. Ich dostępność i struktura wpływają na płynność ruchu pojazdów. Zastosowanie innowacyjnych rozwiązań w tym zakresie ma na celu poprawę jakości ruchu także pojazdów ciężarowych na trasie. Dlatego celem tego artykułu było zbadanie systemów zarządzania parkingami. W pracy zastosowano metodę oceny algorytmów równoważenia wjazdów/wyjazdów w oparciu o systemy informacji o zajętości parkingów autostradowych. Wskazano adekwatne kryteria i mierniki jakości, opisano również procedury ustalania mierników w procesie certyfikacji systemu oraz ich zastosowanie do wybranych aplikacji tj.: NeuroCar Park Balance. Odniesiono się również do czynników zewnętrznych wpływających na sprawność systemów oraz zaleceń dotyczących procedur weryfikacji. Na podstawie przeprowadzonych pomiarów zidentyfikowano korzyści i trudności w stosowaniu systemu zarządzania parkingami dla samochodów ciężarowych będących w trasie.