Energy and comfort performance of thermally activated building systems including occupant behavior

Sælens, Dirk; Parys, Wout; Bætens, Ruben

doi:10.1016/j.buildenv.2010.10.012

Cited by 105 publications

(57 citation statements)

References 22 publications

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“…For example, the surface temperature of human body and room walls can cause the increase of radiation temperature [26]. The orientation and surface treatment of window glazing [27] and the occupant behaviour [28] also have important effects on energy performance and thermal balance of thermal comfort level. It was found that careful monitor and control of fluid inlet temperature of a heating radiator panel can maximise the indoor thermal comfort as well as minimise the energy consumption [24].…”

Section: Introductionmentioning

confidence: 99%

Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture

Horikiri

Yao

2015

Energy and Buildings

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Indoor thermal environment of a 3-D ventilated room was studied by computational fluid dynamics to understand correlations between heat generation, ventilation velocity and thermal sensation indices. The existence of a thermal occupant was found to produce thermal plume approx stronger in magnitude than that from an unoccupied room. With second thermal occupant, there has further temperature increase of maximum , equivalent to an increase of PPD value by , for which occupants would normally feel uncomfortable.Thus, an increased flow ventilation rate ( ) would be required, in order to keep the same thermal comfort level of the room.

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Section: Introductionmentioning

confidence: 99%

Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture

Horikiri

Yao

2015

Energy and Buildings

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“…This is a standard study distribution as bibliography shows [43][44][45][46]. The climate control provides an individual regulation of the temperature of each room.…”

Section: Model Development and Linearizationmentioning

confidence: 99%

Energy Conservation in an Office Building Using an Enhanced Blind System Control

et al. 2017

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Abstract:The two spaces office module is usually considered as a representative case-study to analyse the energetic improvement in office buildings. In this kind of buildings, the use of a model predictive control (MPC) scheme for the climate system control provides energy savings over 15% in comparison to classic control policies. This paper focuses on the influence of solar radiation on the climate control of the office module under Belgian weather conditions. Considering MPC as main climate control, it proposes a novel distributed enhanced control for the blind system (BS) that takes into account part of the predictive information of the MPC. In addition to the savings that are usually achieved by MPC, it adds a potential 15% improvement in global energy use with respect to the usually proposed BS hysteresis control. Moreover, from the simulation results it can be concluded that the thermal comfort is also improved. The proposed BS scheme increases the energy use ratio between the thermally activated building system (TABS) and air-handling unit (AHU); therefore increasing the use of TABS and allowing economic savings, due to the use of more cost-effective thermal equipment.

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“…Lehmann et al [7] demonstrated a significant impact of the adopted hydraulic system and the applied control strategy on the efficiency of using the energy from a system with thermally activated ceilings. Saelens et al [8] analyzed the occupant behaviour impact on the energy efficiency of TABS during the cold season for the climate conditions of Belgium. The assessment parameter for the heat comfort of the simulation model was temperature in a given room.…”

Section: Figmentioning

confidence: 99%

Energy demand and thermal comfort of HVAC systems with thermally activated building systems as a function of user profile

2017

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Abstract. Thermally Activated Building Systems (TABS) are a way to use building structure as a thermal energy storage. As a result, renewable energy sources may be used more efficiently. The paper presents numerical analysis of a HVAC system with TABS energy demand and indoor thermal comfort of a representative room in a non-residential building (governmental, commercial, educational). The purpose of analysis is to investigate the influence of a user profile on system performance. The time span of the analysis is one year -a typical meteorological year. The model was prepared using a generally accepted simulation tool -TRNSYS 17. The results help to better understand the interaction of a user profile with TABS. Therefore they are important for the development of optimal control algorithms for energy efficient buildings equipped with such systems.

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Energy and comfort performance of thermally activated building systems including occupant behavior

Cited by 105 publications

References 22 publications

Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture

Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture

Energy Conservation in an Office Building Using an Enhanced Blind System Control

Energy demand and thermal comfort of HVAC systems with thermally activated building systems as a function of user profile

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