Building HVAC systems control using power shaping approach

2016 ◽  
Author(s):  
V. Chinde ◽  
K. C. Kosaraju ◽  
Atul Kelkar ◽  
R. Pasumarthy ◽  
S. Sarkar ◽  
...  
Keyword(s):  
Hvac Systems ◽  
Systems Control

Robust nonlinear HVAC systems control with evolutionary optimisation

2013 ◽  
Vol 30 (8) ◽  
pp. 1147-1169 ◽  
Author(s):  
John Counsell ◽  
Obadah Zaher ◽  
Joseph Brindley ◽  
Gavin Murphy
Keyword(s):  
Hvac Systems ◽  
Evolutionary Optimisation ◽  
Systems Control

scholarly journals Barriers on Establishing Passive Strategies in Office Spaces: A Case Study in a Historic University Building

2021 ◽  
Vol 13 (8) ◽  
pp. 4563
Author(s):  
Nuno Baía Baía Saraiva ◽  
Luisa Dias Dias Pereira ◽  
Adélio Rodrigues Gaspar ◽  
José Joaquim da Costa
Keyword(s):  
Thermal Comfort ◽  
Indoor Environment ◽  
Hvac Systems ◽  
Heritage Buildings ◽  
Full Capacity ◽  
Free Cooling ◽  
Passive Strategies ◽  
The University ◽  
Indoor Conditions

The adaptation of spaces to different usage typologies can be complex in heritage buildings. Facilities were initially planned for a specific type of use that, when changed, require additional measures to ensure a suitable indoor environment. Passive strategies—e.g., free cooling—are commonly used as an alternative without requiring equipment installation. However, its implementation often leads to unsatisfactory conditions. Therefore, it is important to clarify the main barriers to achieving thermal comfort in readapted historic buildings. The present work investigates the thermal comfort conditions reported by workers in office spaces of a historic building in the University of Coimbra. A monitoring campaign was carried out between May and September 2020 to assess indoor conditions’ quality. Due to the current pandemic of COVID-19, offices were not occupied at full capacity. A one-day evaluation of thermal comfort was made using a climate analyzer and six occupants were surveyed on 19 August 2020. The main results highlighted discomfort due to overheating of spaces. The causes were related to the combination of inadequate implementation of the free cooling actions and the building use. Furthermore, it was recommended the installation of HVAC systems in case of full capacity.

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