| 1. |
- Abbafati, Cristiana, et al.
(författare)
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- 2020
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Tidskriftsartikel (refereegranskat)
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| 2. |
- Nasiri, Fuzhan, et al.
(författare)
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Data Analytics and Information Technologies for Smart Energy Storage Systems : A State-of-the-Art Review
- 2022
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Ingår i: Sustainable cities and society. - : Elsevier BV. - 2210-6707. ; 84, s. 104004-
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Forskningsöversikt (refereegranskat)abstract
- This article provides a state-of-the-art review on emerging applications of smart tools such as data analytics and smart technologies such as internet-of-things in case of design, management and control of energy storage systems. In particular, we have established a classification of the types and targets of various predictive analytics for estimation of load, energy prices, renewable energy inputs, state of the charge, fault diagnosis, etc. In addition, the applications of information technologies, and in particular, use of cloud, internet-of-things, building management systems and building information modeling and their contributions to management of energy storage systems will be reviewed in details. The paper concludes by highlighting the emerging issues in smart energy storage systems and providing directions for future research.
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| 3. |
- Rahnama, Samira, et al.
(författare)
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Cooling capacity of diffuse ceiling ventilation system and the impact of heat load and diffuse panel distribution
- 2020
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Ingår i: Building and Environment. - : Elsevier. - 0360-1323 .- 1873-684X. ; 185
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Tidskriftsartikel (refereegranskat)abstract
- Diffuse ceiling ventilation system is an air distribution system based on the low-impulse supply of air through the perforated panels installed as the suspended ceiling. A ceiling with diffuse supply typically consists of active and passive panels, where active panels allow airflow. Diffuse ceiling ventilation system has been proven to have a higher cooling capacity compared to conventional air distribution systems, e.g. mixing or displacement ventilation systems. Several parameters have an impact on the cooling capacity of the system though. The present research study evaluates the cooling capacity of the diffuse ceiling ventilation system in connection to two essential parameters, i.e. the distribution of heat load in the room and the distribution of active diffuse panels in the ceiling. The evaluation is based on full-scale experiments performed in a laboratory-controlled environment as well as numerical studies with Computational Fluid Dynamics (CFD) simulations. The cooling capacity of the system in several scenarios with different heat load and active diffuse panel distribution are compared under a certain thermal comfort condition. The results indicate the highest cooling capacity in the scenario with evenly distributed heat load in the room and compact distribution of active diffuse panels in the ceiling, while the active panels cover almost one-third of the suspended ceiling. The system is at its minimum cooling capacity in the scenario with compact heat load distribution in the room and disperse distribution of active diffuse panels in the ceiling.
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| 4. |
- Sadeghian, Parastoo, et al.
(författare)
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Evaluating the cooling capacity of diffuse ceiling ventilation systems for different ratios of perforated area
- 2020
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Konferensbidrag (refereegranskat)abstract
- Diffuse ceiling ventilation system is an air distribution system, in which the outdoor air is supplied to the occupied room through the perforated panels installed in the ceiling. This method has been proven to have a higher cooling capacity compared to the conventional air distribution systems. This study is a part of an ongoing project consists of two phases. In the first phase, the project aimed to experimentally investigate the dependence of the cooling capacity on the location of heat sources in the room and the distribution of diffusive supply areas in the ceiling. The experimental study was carried out in order to calibrate the model of the test room with the perforated panels cover the entire ceiling. The second phase of the project numerically studied the cooling capacity of the system in several scenarios with different ratios of perforated to non-perforated panels in the ceiling, with even distribution of the heat sources. The obtained results showed that decreasing the area of the perforated panels can improve the cooling capacity of the diffuse ceiling system.
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| 5. |
- Sadeghian, Parastoo, et al.
(författare)
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The role of design parameters on the performance of diffuse ceiling ventilation systems – thermal comfort analyses for indoor environment
- 2022
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Ingår i: Advances in Building Energy Research. - : Informa UK Limited. - 1751-2549 .- 1756-2201. ; , s. 1-19
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Tidskriftsartikel (refereegranskat)abstract
- Thermal comfort conditions profoundly affect the occupants’ health and productivity. A diffuse ceiling ventilation system is an air distribution system in which the air is supplied to the occupied zone with relatively a low velocity through the perforated panels installed in the ceiling. The current study evaluated the impact of diffuse ceiling design parameters, i.e. diffuse panel configurations and heat load distributions, on the thermal comfort condition of the occupants. In this regard, the computational fluid dynamics technique was used to evaluate thermal comfort conditions in a waiting room, meeting room and office. The central and dispersal configuration of active diffuse panels was considered. The PMV-PPD model was applied to evaluate the overall occupants’ comfort, while the draft rate was considered to assess local thermal comfort. The model validation was performed by comparing the collected laboratory measurement data. Overall, the results indicated that the central active diffuse panel configuration had a better thermal comfort than the dispersed one. The evaluation of dispersed configuration in realist scenarios, including office and waiting room, had the highest dissatisfaction, with a PPD value of 9%. Local thermal comfort assessment revealed that dispersed configuration had the highest draft rate of 14% in the office.
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| 6. |
- Sadrizadeh, Sasan, et al.
(författare)
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A systematic review of operating room ventilation
- 2021
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Ingår i: Journal of Building Engineering. - : Elsevier BV. - 2352-7102. ; 40, s. 102693-
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Forskningsöversikt (refereegranskat)abstract
- Ventilation systems are the primary way of eliminating airborne pathogenic particles in an operating room (OR). However, such systems can be complex due to factors such as different surgical instruments, diverse room sizes, various staff counts, types of clothing used, different surgical types and duration, medications, and patient conditions. OR ventilation should provide a thermally comfortable environment for the surgical staff team members while preventing the patient from suffering from any extreme hypothermia. Many technical, logistical, and ethical implications need to be considered in the early stage of designing a ventilation system for an OR. Years of research and a significant number of publications have highlighted the controversy and disagreement among infection specialists, design engineers, and ventilation experts in this context. This review article aims to provide a good understanding of OR ventilation systems in the context of air quality and infection control from existing research and provide multidimensional insights for appropriate design and operation of the OR. To this end, we have conducted a systematic review of the literature, covering 253 articles in this context. Systematic review and meta-analyses were used to map the evidence and identify research gaps in the existing clinical, practical, and engineering knowledge. The present study is categorized into six research focuses: ventilation system, thermal comfort, staff work practice and obstacles, door operation and passage, air cleaning technology, emission rate, and clothing systems. In the conclusion, we summarize the key limitations of the existing studies and insights for future research direction.
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