Optimizing the modular adaptive façade control strategy in open office space using integer programming and surrogate modelling

2021 ◽  
pp. 111546
Author(s):  
Linhai Shen ◽  
Yunsong Han
2020 ◽  
Vol 95 (1) ◽  
pp. 52-58
Author(s):  
Janice Barnes ◽  
Jean Wineman ◽  
Nancy Adler
Keyword(s):  

Author(s):  
Elvire Katramiz ◽  
Nesreen Ghaddar ◽  
Kamel Ghali

Abstract The mixed-mode ventilation (MMV) system is an energy-friendly ventilation technique that combines natural ventilation (NV) with mechanical air conditioning (AC). It draws in fresh air when the outdoor conditions are favorable or activates otherwise the AC system during occupancy hours. To improve performance of the MMV system, it is proposed to integrate it with an intermittent personalized ventilation (IPV) system. IPV delivers cool clean air intermittently to the occupant and enhances occupant thermal comfort. With the proper ventilation control strategy, IPV can aid MMV by increasing NV mode operational hours, and improve the energy performance of the AC system by relaxing the required macroclimate set point temperature. The aim of this work is to study the IPV+MMV system performance for an office space application in terms of thermal comfort and energy savings through the implementation of an appropriate control strategy. A validated computational fluid dynamics (CFD) model of an office space equipped with IPV is used to assess the thermal fields in the vicinity of an occupant. It is then coupled with a transient bio-heat and comfort models to find the overall thermal comfort levels. Subsequently, a building-performance simulation study is performed using Integrated Environmental Solutions-Virtual Environment (IES-VE) for an office in Beirut, Lebanon for the typical summer month of July. An energy analysis is conducted to predict the savings of the suggested design in comparison to the conventional AC system. Results showed that the use of IPV units and MMV significantly reduced the number of AC operation hours while providing thermal comfort.


2020 ◽  
Vol 60 ◽  
pp. 102257 ◽  
Author(s):  
Xiaofang Shan ◽  
Na Luo ◽  
Kaiyu Sun ◽  
Tianzhen Hong ◽  
Yi-Kuen Lee ◽  
...  

2019 ◽  
Vol 3 (2) ◽  
pp. 134-149
Author(s):  
Hafizha Azka ◽  
Yunita Setyoningrum ◽  
Ferlina Sugata

This research explores how the open-plan office space in the Pikiran Rakyat Bandung head office influences the visual privacy preferences of the editorial staff. The aim is to find out what visual privacy is needed by the employees and the factors that might cause visual privacy disturbance on the employees of the open-plan office. The research observed several workstations with the potential of visual privacy disturbances, namely workstations that: a) is back-to-back with the walkway, b) is located at a walkway junction, c) is directly adjacent to the door, d) is adjacent to joint work facilities, e) is facing other coworkers, and f) is close to other co-workers on the right or left side. The research method was descriptive qualitative, using field observations and interviews to collect data. The result shows that: a) The interior settings of the workspace in open office space adjacent to coworkers both on the right side and left side are the most dominant factors that cause disruption to employees in visual privacy; b) Characteristics of employee’s task which need solitude condition influence visual privacy preferences the most, especially in the work layout (monitor). Thus, office space planning in an open office space at the Bandung People's Mind headquarters should consider the need for visual privacy by a) Rearranging the interior settings of the workspace with the ideal amount of workspace, b) Adding physical barriers between workspaces, and c) Arranging centralized shared work facilities for employees in open office space, hence minimalize disturbance from the conducted activities.


1980 ◽  
Author(s):  
Harold F. Engler ◽  
Esther L. Davenport ◽  
Joanne Green ◽  
William E. Sears

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