Agent Based Modelling to Improve Comfort and Save Energy in the Built Environment

2008 ◽  
Author(s):  
Wim Zeiler ◽  
Gert Boxem ◽  
Rinus van Houten ◽  
Joep van der Velden ◽  
Willem Wortel ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Built Environment ◽  
Control Strategy ◽  
Energy Demand ◽  
Building Design ◽  
Research Centre ◽  
Control Technology ◽  
Indoor Climate ◽  
Climate Control ◽  
Reduce Energy Consumption

In Europe comfort in buildings needs 40% of the total energy. With effects of Global warming becoming more and more apparent there is a need to reduce this energy demand by comfort within the built environment. In comfort control strategy there is an exciting development based on inclusive design: the user’s preferences and their behaviour have become central in the building services control strategy. Synergy between end-user and building is the ultimate in the intelligent comfort control concept. This new comfort control technology is based on the use of agent technology and can further reduce energy consumption of buildings while at the same time improve individual comfort. The TU/e (Technische Universiteit Eindhoven) together with Kropman and ECN (Energy research Centre Netherlands) work together in the research for user based preference indoor climate control technology. Central in this approach is the user focus of the whole building design process which makes it possible to reduce energy consumption by tuning demand and supply of the energy needed to fulfill the comfort demand of the occupants building.

Buildings with environmental quality management: Part 1: Designing multifunctional construction materials

2017 ◽  
Vol 41 (3) ◽  
pp. 193-208 ◽  
Author(s):  
Mark Bomberg ◽  
Marcin Furtak ◽  
David Yarbrough
Keyword(s):  
Quality Management ◽  
Built Environment ◽  
Environmental Quality ◽  
Construction Materials ◽  
Integrated Design ◽  
Building Design ◽  
Information Modeling ◽  
Indoor Climate ◽  
Climate Control ◽  
Building Physics

The quest for a sustainable built environment has resulted in dramatic changes in the process of residential construction. The new concepts of an integrated design team, building information modeling, commissioning of the building enclosure, and passive house standards have reached maturity. Global work on development of new construction materials has not changed, but their evaluation is not the same as in the past when each material was considered on its own merits. Today, we look at the performance of a building as a system and on the material as a contributor to this system. The series of white papers—a research overview in building physics undertaken in European and North American researchers—is to provide understanding of the process of design and construction for sustainable built environment that involves harmony between different aspects of the environment, society, and economy. Yet, the building physics is changing. It merges with building science in the quest of predicting building performance, it merges concepts of passive houses with solar engineering and integrates building shell with mechanical services, but is still missing an overall vision. Physics does not tell us how to integrate people with their environment. The authors propose a new term buildings with environmental quality management because the vision of the building design must be re-directed toward people. In doing so, the building physics will automatically include durability of the shell, energy efficiency, and carbon emission and aspects such as individual ventilation and indoor climate control. This article, which is part 1 of a series, deals with materials, and other issues will be discussed in following papers.

scholarly journals The Energy-Saving Potential of Chilled Ceilings Combined with Personalized Ventilation

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1133
Author(s):  
Aleksandra Lipczynska ◽  
Jan Kaczmarczyk ◽  
Arsen Melikov
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Control Strategy ◽  
Energy Demand ◽  
Room Temperature ◽  
Temperate Climate ◽  
Indoor Climate ◽  
Hot Climate ◽  
Free Cooling ◽  
Personalized Ventilation

The energy consumption of purely convective (i.e., various air volume (VAV) mixing ventilation) and combined radiant and convective HVAC systems (chilled ceiling combined with mixing ventilation—CCMV or personalized ventilation—CCPV) was investigated with multi-variant simulations carried out the IDA Indoor Climate and Energy software. We analyzed three different climates: temperate, hot and humid, and hot and dry. Our results show that the use of CCPV substantially reduced energy consumption compared to the conventional VAV system in hot climates. We also show that increasing the room temperature to 28 °C is an effective energy-saving strategy that can reduce consumption by as much as 40%. In the temperate climate, the VAV system was preferable because it used less energy as it benefited from outdoor air free-cooling. The control strategy of the supply temperature of personalized air had an impact on the energy demand of the HVAC system. The most efficient control strategy of the CCPV system was to increase the room temperature and keep the supply air temperature in the range of 20–22 °C. This approach consumed less energy than VAV or CCMV, and also improved the relative humidity in the hot climate.

scholarly journals Design of a smart system for indoor climate control in historic underground built environment

2017 ◽  
Vol 134 ◽  
pp. 518-527 ◽  
Author(s):  
Francesca Stazi ◽  
Benedetta Gregorini ◽  
Andrea Gianangeli ◽  
Gabriele Bernardini ◽  
Enrico Quagliarini
Keyword(s):  
Built Environment ◽  
Indoor Climate ◽  
Climate Control ◽  
Smart System

scholarly journals Thermal Conductivity of Lightweight Concrete Block with Various Cooling Agent

2020 ◽  
Vol 12 (9) ◽  
Author(s):  
Masni A. Majid ◽  
◽  
Aina Syafawati Roslan ◽  
Noor Azlina Abdul Hamid ◽  
Norhafizah Salleh ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Energy Consumption ◽  
Energy Demand ◽  
Lightweight Concrete ◽  
Human Life ◽  
Concrete Block ◽  
Experimental Result ◽  
Cooling Agent ◽  
Reduce Energy Consumption ◽  
Day By Day

Energy was the important sources to human life. Due to increases energy demand in daily life, the energy consumption was increase day by day because of the heat load from solar radiation and heat produced by people. Toward sustainable development, this research was carried out to develop a lightweight concrete (LWC) block with various cooling agent such as glycerine, propylene glycol, coconut shell and gypsum powder. Six lightweight concrete (LWC) block with the size 250mm (L) × 250mm (W) × 100mm (T) were tested for thermal conductivity value. From the experimental result, it shows that lightweight concrete (LCW) block with various cooling agent obtained thermal conductivity value of 0.17W/mK - 0.36W/mK lower than thermal conductivity value for normal lightweight concrete (0.8W/mK) depending on concrete density. The lightweight concrete (LCW) block with cooling agent having low thermal conductivity value will reduce energy consumption in building.

scholarly journals Fuzzy Coordination Control Strategy and Thermohydraulic Dynamics Modeling of a Natural Gas Heating System for in Situ Soil Thermal Remediation

Entropy ◽  
2019 ◽  
Vol 21 (10) ◽  
pp. 971 ◽  
Author(s):  
Zhai ◽  
Yang ◽  
Li ◽  
Jiang ◽  
Ye ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Natural Gas ◽  
Control Strategy ◽  
Control Strategies ◽  
Heating System ◽  
Coordination Control ◽  
Gas Heating ◽  
Thermal Remediation ◽  
Reduce Energy Consumption

Soil contamination remains a global problem. Among the different kinds of remediation technologies, in situ soil thermal remediation has attracted great attention in the environmental field, representing a potential remedial alternative for contaminated soils. Soils need to be heated to a high temperature in thermal remediation, which requires a large amount of energy. For the natural gas heating system in thermal remediation, a fuzzy coordination control strategy and thermohydraulic dynamics model have been proposed in this paper. In order to demonstrate the superiority of the strategy, the other three traditional control strategies are introduced. Analysis of the temperature rise and energy consumption of soils under different control strategies were conducted. The results showed that the energy consumption of fuzzy coordination control strategy is reduced by 33.9% compared to that of the traditional control strategy I, constant natural gas flow and excess air ratio. Further, compared to the traditional control strategy II, constant excess air ratio and desired outlet temperature of wells, the strategy proposed can reduce energy consumption by 48.7%. The results illustrate the superiority of the fuzzy coordination control strategy, and the strategy can greatly reduce energy consumption, thereby reducing the cost of in situ soil thermal remediation.

scholarly journals The Analysis of Outdoor Climate, Moist Air Enthalpy and their Relation to Cooling Energy Consumption in the Tropics

2018 ◽  
Vol 7 (4.35) ◽  
pp. 254
Author(s):  
Waraporn Rattanongphisat ◽  
Anantachai Suwannakom
Keyword(s):  
Energy Consumption ◽  
Correlation Coefficient ◽  
Energy Demand ◽  
Climate Data ◽  
Outdoor Temperature ◽  
Indoor Climate ◽  
Outdoor Climate ◽  
Enthalpy Difference ◽  
One Year ◽  
The Tropics

The air conditioned auditorium classroom was monitored for energy consumption by a monitoring platform. One year collected data from energy consumption and indoor climate monitoring systems and outdoor climate data in Phitsanulok province, Thailand, where its climate classified as the tropics, was employed to determine their relation by regression analysis. The analysis of climate data showed that the outdoor temperature above 26 oC was accounted for 70% of the year this emphasizes on cooling requirement. Furthermore, the hourly cooling energy consumption ranged from 8.1 to 10.3 kWh for indoor air temperature between 20 oC and 32 oC.  The higher outdoor temperature causes the greater cooling energy consumption. The correlation between outdoor temperature and cooling energy consumption with linear regression showed the correlation coefficient of 0.38 while the correlation between temperature difference and enthalpy difference of the outdoor and indoor found the correlation coefficient of 0.71. This pointed out that the outdoor tropical climate highly affected to the cooling energy demand.

scholarly journals Thermal performance characterisation of a reverse-flow energy recovery ventilator for a residential building application

2019 ◽  
Vol 111 ◽  
pp. 01010
Author(s):  
David Hunt ◽  
Naoise Mac Suibhne ◽  
Laurentiu Dimache ◽  
David McHugh ◽  
John Lohan
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Thermal Performance ◽  
Thermal Energy ◽  
Carbon Emissions ◽  
Energy Recovery ◽  
Reverse Flow ◽  
Recovery Efficiency ◽  
Indoor Climate ◽  
Climate Control

The European Union’s 2020 and 2030 sustainable energy policies seek significant reductions in both energy consumption and carbon emissions. These policies demand a greater use of energy efficient technologies and a transition away from fossil fuels. This paper studies one such technology, an indoor climate control system with a reverse-flow enthalpy recovery ventilator, capable of recovering both sensible and latent heat. The thermal performance characteristics are established using an experimental facility and calculation methods defined by European Standard EN 13141-7:2010. This involves measurement of temperature, humidity, pressure and volumetric air flow rates over a range of operating conditions. Total thermal energy recovery rates ranged from 0.63 kW to 2.2 kW, with energy recovery efficiency of 72.8 % to 88.6 %. The recovery efficiency ratio, which reflects the capacity of the indoor climate control system to recover thermal energy relative to its power consumption ranged between 6.87 to 19.97. Due to the unique reverse-flow defrost function, the system demonstrates operation down to -7 °C without frost formation. These results highlight the potential that this system can make towards the EU goals of reducing energy consumption, operating costs and carbon emissions associated with indoor climate control.

A Switching Scheme for Mixed PZT-Based/Jet Thrusters Control of a Large Flexible Structure

2000 ◽  
Vol 123 (4) ◽  
pp. 722-727 ◽  
Author(s):  
A. Ferrara, ◽  
L. Magnani, and ◽  
R. Scattolini
Keyword(s):  
Energy Consumption ◽  
Control Strategy ◽  
Vibration Suppression ◽  
Space Structure ◽  
Flexible Structure ◽  
Control Performance ◽  
Switching Scheme ◽  
Large Space ◽  
Large Space Structure ◽  
Reduce Energy Consumption

Vibration suppression of a large space structure is achieved by switching between different actuators in order to optimize control performance and to reduce energy consumption. The theoretical properties of the proposed control strategy are reported together with some experimental results.

scholarly journals Finding Alternative Methods for Controlling the Power Shortage in Kurdistan through Improving Buildings’ Energy Performance

2018 ◽  
Vol 7 (4) ◽  
pp. 124
Author(s):  
Kawar T. Salih
Keyword(s):  
Energy Efficiency ◽  
Developing Countries ◽  
Energy Consumption ◽  
Energy Demand ◽  
Building Design ◽  
Energy Performance ◽  
Alternative Methods ◽  
Research Approach ◽  
Building Sector

The power shortage is one of the major problems in developing countries. Kurdistan Region of Iraq suffers from this issue, like other developing countries. Especially, after the economy crises that has started in 2014. However, all its efforts for tackling this challenge has been in providing more energy supply stations and more fuel provision. Few studies have been found in the region that seek the relation between the quality of buildings and energy consumption. It is questioned if the building sector in Kurdistan is well managed and environmentally sufficient to consume minimum amount of energy since it is the largest energy consuming sector. This research will seek an alternative to decrease the energy demand in buildings instead of expanding the energy sector. This could be achieved by evaluating the quality of building sector environmentally and improving it. Providing guidelines for building’s thermal regulations, passive building design and increasing the energy efficiency of buildings by renewal means could be alternative strategies for lowering the energy consumption. Theoretical and numerical research approach have been taken in to account for finding the answer through a case study and comparative analysis. A variation of 21-29% of power consumption can be observed between buildings that have not considered energy efficiency criteria in their design and those who reflected them more in the design.

Sign in / Sign up

Export Citation Format

Share Document