Facility Energy Management based on adaptive thermal comfort protocols: A case-study

2018 ◽  
Author(s):  
Spoorthy Paresh ◽  
Naveen Thokala ◽  
M Girish Chandra
Keyword(s):  
Thermal Comfort ◽  
Energy Management ◽  
Adaptive Thermal Comfort

scholarly journals Adaptive Thermal Comfort Potential in Mediterranean Office Buildings: A Case Study of Torre Sevilla

2018 ◽  
Vol 10 (9) ◽  
pp. 3091 ◽  
Author(s):  
Raúl Castaño-Rosa ◽  
Carlos Rodríguez-Jiménez ◽  
Carlos Rubio-Bellido
Keyword(s):  
Thermal Comfort ◽  
Air Conditioning ◽  
Natural Ventilation ◽  
High Tech ◽  
Adaptive Thermal Comfort ◽  
Adaptive Comfort ◽  
Conditioning Equipment ◽  
Air Conditioning Systems ◽  
The City

The design and construction of buildings is currently subject to a growing set of requirements concerning sustainability and energy efficiency. This paper shows a case study of the Torre Sevilla skyscraper, located in the city of Seville (in the south of Spain), which has high-tech energy-efficient features and which uses air-conditioning systems during most of its operating hours. The analysis carried out starts from a simulation in which occupants’ thermal comfort are obtained, based on the adaptive comfort model defined in the standard EN 15251:2007. With this approach, it is possible to determine the number of hours during operation in which the building has adequate comfort conditions only with the help of the envelope and natural ventilation. Consequently, the remaining useful hours require the use of air-conditioning systems. The results show that it is possible to improve the thermal performance of the building due to its location in the Mediterranean climate. To do this, advanced mixed mode (through manual-opening or mechanically-controlled opening windows) and active air-conditioning are suggested. This experimental proposal provides a reduction of the occupation hours which require the use of air-conditioning equipment by 28.57%, reducing the air-conditioning demand and, consequently, the energy consumption of the building.

scholarly journals Cooling Degree Models and Future Energy Demand in the Residential Sector. A Seven-Country Case Study

2021 ◽  
Vol 13 (5) ◽  
pp. 2987
Author(s):  
Raúl Castaño-Rosa ◽  
Roberto Barrella ◽  
Carmen Sánchez-Guevara ◽  
Ricardo Barbosa ◽  
Ioanna Kyprianou ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Thermal Comfort ◽  
Energy Demand ◽  
Energy Performance ◽  
Low Energy ◽  
Extreme Weather Events ◽  
Building Stock ◽  
Residential Sector ◽  
Adaptive Thermal Comfort

The intensity and duration of hot weather and the number of extreme weather events, such as heatwaves, are increasing, leading to a growing need for space cooling energy demand. Together with the building stock’s low energy performance, this phenomenon may also increase households’ energy consumption. On the other hand, the low level of ownership of cooling equipment can cause low energy consumption, leading to a lack of indoor thermal comfort and several health-related problems, yet increasing the risk of energy poverty in summer. Understanding future temperature variations and the associated impacts on building cooling demand will allow mitigating future issues related to a warmer climate. In this respect, this paper analyses the effects of change in temperatures in the residential sector cooling demand in 2050 for a case study of nineteen cities across seven countries: Cyprus, Finland, Greece, Israel, Portugal, Slovakia, and Spain, by estimating cooling degree days and hours (CDD and CDH). CDD and CDH are calculated using both fixed and adaptive thermal comfort temperature thresholds for 2020 and 2050, understanding their strengths and weaknesses to assess the effects of warmer temperatures. Results suggest a noticeable average increase in CDD and CDH values, up to double, by using both thresholds for 2050, with a particular interest in northern countries where structural modifications in the building stock and occupants’ behavior should be anticipated. Furthermore, the use of the adaptive thermal comfort threshold shows that the projected temperature increases for 2050 might affect people’s capability to adapt their comfort band (i.e., indoor habitability) as temperatures would be higher than the maximum admissible values for people’s comfort and health.

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