scholarly journals Living Lab Concept for Sensor Based Energy Performance Assessment of Houses

Neutron ◽  
2022 ◽  
Vol 21 (2) ◽  
pp. 105-111
Author(s):  
Farrukh Arif ◽  
Muhammad Wasay Uz Zaman ◽  
Rabia Khalid
Keyword(s):  
Energy Consumption ◽  
Performance Assessment ◽  
Energy Efficient ◽  
Energy Demand ◽  
Industrial Development ◽  
Energy Use ◽  
Substantial Reduction ◽  
Energy Performance ◽  
Living Lab ◽  
Energy Simulations

All the social, economic and industrial development depends on the availability of energy. Since energy demand is increasing exponentially throughout the world, more and more CO2 is being emitted out into the atmosphere, giving rise to global warming. Therefore, establishing a sustainable environment is becoming increasingly important. It has been found through research that domestic sector contributes a great deal to the rising energy consumption. Due to prevailing energy crisis, efforts are being made to reduce the increasing energy consumption and make efficient use of energy by making the buildings energy efficient. For this, realistic assessment of energy use patterns in existing houses and buildings is necessary to assure dataset accuracy. Living lab concept integrated with sensor technologies can be used for assessment of such patterns.  This paper presents living lab concept for sensor-based energy performance assessment of Houses.  First, detailed literature review to benchmark concepts of energy efficiency of buildings, living labs concept, sensor based assessment, energy audit, and application of living lab concept has been discussed. Thereafter, sensors based living lab assessment and living lab approach has been introduced as being utilized by the author in a research project for development of guidelines for energy efficient housing. The paper also highlights important parameters to be monitored that effect energy performance. The concept reflects usefulness of living lab concept for sensor-based energy performance assessment of houses that help in substantial reduction in the energy consumption. As such data can be utilized for both realistic energy simulations by improving level of development of models as well as better usage comparisons with modeled analysis, hence helping in identifying true and effective improvement measures

Research of Contradiction between Energy Use and Industrial Development of Underdeveloped Regions in Northwest - Yinchuan City in Ningxia Autonomous Region as an Example

2014 ◽  
Vol 522-524 ◽  
pp. 1670-1674
Author(s):  
Qian Dong
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Industrial Development ◽  
Energy Use ◽  
Energy Utilization ◽  
Energy Industry ◽  
Ecological Environment ◽  
Great Pressure ◽  
Good Energy ◽  
Industry Planning

Industrialization brings great pressure to the construction of urban ecological environment. Yinchuan of Ningxia, located in the northwest economic underdeveloped regions, has good energy supply conditions. Unreasonable energy consumption structure and energy utilization way leads to massive energy consumption. Give some prediction for the possible future energy demand mode, and give suggestion on aspects of the urban heating and the development of energy industry planning.

scholarly journals Analysis of the Impact of Different Variables on the Energy Demand in Office Buildings

2020 ◽  
Vol 12 (13) ◽  
pp. 5347
Author(s):  
José Luis Fuentes-Bargues ◽  
José-Luis Vivancos ◽  
Pablo Ferrer-Gisbert ◽  
Miguel Ángel Gimeno-Guillem
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Energy Use ◽  
Computer Software ◽  
Energy Performance ◽  
Point Of View ◽  
Regulatory Systems ◽  
Energy Behaviour ◽  
Balance Energy ◽  
The Impact

The design of near zero energy offices is a priority, which involves looking to achieve designs which minimise energy consumption and balance energy requirements with an increase in the installation and consumption of renewable energy. In light of this, some authors have used computer software to achieve simulations of the energy behaviour of buildings. Other studies based on regulatory systems which classify and label energy use also generally make their assessments through the use of software. In Spain, there is an authorised procedure for certifying the energy performance of buildings, and software (LIDER-CALENER unified tool) which is used to demonstrate compliance of the performance of buildings both from the point of view of energy demand and energy consumption. The aim of this study is to analyse the energy behaviour of an office building and the variability of the same using the software in terms of the following variables: climate zone, building orientation and certain surrounding wall types and encasements typical of this type of construction.

scholarly journals The Effect of Balcony Thermal Breaks on Building Thermal and Energy Performance: Field Experiments and Energy Simulations in Chicago, IL

Buildings ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 190
Author(s):  
Irina Susorova ◽  
Brent Stephens ◽  
Benjamin Skelton
Keyword(s):  
Energy Consumption ◽  
Thermal Resistance ◽  
High Performance ◽  
Energy Use ◽  
Field Experiments ◽  
Building Energy ◽  
Energy Performance ◽  
Curtain Wall ◽  
Energy Simulations

A common envelope performance problem in buildings is thermal bridging through balcony slab connections, which can be improved with the use of commercially available thermal break products. Several prior studies have used simulation-based and/or hot box test apparatus approaches to quantify the likely effect of balcony thermal breaks on effective thermal resistance of building enclosures. However, in-situ measurements of thermal performance in real buildings remain limited to date. This study uses a combination of field measurements and models to investigate the effects of installing balcony thermal breaks on the interior surface temperatures, effective thermal resistance, and annual building energy consumption. For the field experiment, yearlong measurements were conducted on the 13th floor of a 14-story multi-family building in Chicago, IL, in which thermocouple sensors were embedded into eight balconies and their adjacent interior floor slabs just before concrete was poured to complete the construction. The eight balconies included four control balconies without thermal breaks and four thermally-broken balconies with a commercially available thermal break product installed. The experimental data were then combined with 2-D heat transfer modeling and whole building energy simulations to investigate the impacts of the thermal break product installation on the envelope thermal resistance and overall energy use in the case study building as well as in several more generic building designs with simpler geometries. The results demonstrate that although the balcony thermal breaks helped regulate interior slab temperatures and improved the effective thermal resistance of the curtain wall enclosure assembly by an estimated ~14% in the case study building, the predicted effect on annual energy consumption in all modeled building types was small (i.e., less than 2%). The results also highlight the importance of paying careful attention to envelope design details when using thermal break products and considering the use of thermal break products in combination with other energy efficiency strategies to achieve high performance enclosures.

Assessment of the Life Cycle Energy Efficiency of a Primary School Building in Turkey

2019 ◽  
Vol 887 ◽  
pp. 335-343
Author(s):  
Nazanin Moazzen ◽  
Mustafa Erkan Karaguler ◽  
Touraj Ashrafian
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Energy Consumption ◽  
Energy Demand ◽  
Energy Use ◽  
Human Life ◽  
Energy Performance ◽  
Building Envelope ◽  
Embodied Energy

Energy efficiency has become a crucial part of human life, which has an adverse impact on the social and economic development of any country. In Turkey, it is a critical issue especially in the construction sector due to increase in the dependency on the fuel demands. The energy consumption, which is used during the life cycle of a building, is a huge amount affected by the energy demand for material and building construction, HVAC and lighting systems, maintenance, equipment, and demolition. In general, the Life Cycle Energy (LCE) needs of the building can be summarised as the operational and embodied energy together with the energy use for demolition and recycling processes.Besides, schools alone are responsible for about 15% of the total energy consumption of the commercial building sector. To reduce the energy use and CO2 emission, the operational and embodied energy of the buildings must be minimised. Overall, it seems that choosing proper architectural measures for the envelope and using low emitting material can be a logical step for reducing operational and embodied energy consumptions.This paper is concentrated on the operating and embodied energy consumptions resulting from the application of different architectural measures through the building envelope. It proposes an educational building with low CO2 emission and proper energy performance in Turkey. To illustrate the method of the approach, this contribution illustrates a case study, which was performed on a representative schoold building in Istanbul, Turkey. Energy used for HVAC and lighting in the operating phase and the energy used for the manufacture of the materials are the most significant parts of embodied energy in the LCE analyses. This case study building’s primary energy consumption was calculated with the help of dynamic simulation tools, EnergyPlus and DesignBuilder. Then, different architectural energy efficiency measures were applied to the envelope of the case study building. Then, the influence of proposed actions on LCE consumption and Life Cycle CO2 (LCCO2) emissions were assessed according to the Life Cycle Assessment (LCA) method.

scholarly journals Energy, Economic, and Environmental Performance of a Single-Family House in Chile Built to Passivhaus Standard

2021 ◽  
Vol 13 (3) ◽  
pp. 1199
Author(s):  
Camilo Bravo-Orlandini ◽  
José M. Gómez-Soberón ◽  
Claudia Valderrama-Ulloa ◽  
Francisco Sanhueza-Durán
Keyword(s):  
Energy Consumption ◽  
Environmental Performance ◽  
Energy Demand ◽  
Energy Use ◽  
Initial Step ◽  
Energy Performance ◽  
Primary Energy ◽  
Single Family ◽  
Passive Strategies ◽  
Heating Energy Demand

The energy consumption of buildings accounts for 22% of total global energy use and 13% of global greenhouse gas emissions. In this context, this study aims to evaluate the energy, economic, and environmental performance of housing in Chile built according to the Passivhaus (PH) standard. The standard was applied to housing in eight representative climate zones with a single-family residence as reference. The analysis incorporated passive strategies, which are considered as pillars of the PH. The energy performance was analyzed using the Passive House Planning Package software (PHPP), version 9.6a. The results showed that when every passive strategy is implemented, the heating energy demand decreases by 93%, while the refrigeration demand is nonexistent. These results were achieved through a 37% increase in the overall initial budget investment, which will be amortized over an 11-year period. In this way, the primary energy consumption is reduced by 32% and, correspondingly, CO2 emissions are reduced by 39%. In modern Chile, it is difficult (but not impossible) to incorporate PH. However, governmental programs and aids could represent an initial step. Therefore, this research will help to identify strategies for incorporating PH in Chile, with the aim of improving the energy performance of housing.

scholarly journals Determining The Effect Of Building Geometry On Energy Use Patterns Of Office Developments

2021 ◽  
Author(s):  
Tonima Ferdous
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Energy Use ◽  
Energy Performance ◽  
Design Parameters ◽  
Use Patterns ◽  
Aspect Ratios ◽  
Building Geometry ◽  
Use Values ◽  
Solar Control

The project investigates potentials of building geometry to minimize energy consumption in office developments. Five distinct building geometries are developed to represent mid-size office occupancies in the context of Toronto (located at southern Ontario, Canada). A square, a rectangle elongated on eastwest, a rectangle elongated on north- south, an H-shape, and a cruciform are examined with varied design parameters; such as: window to wall ratio and external static solar control devices (horizontal overhangs and vertical fins). The IES VE software is applied to predict the yearly energy consumption results for 40 analysis permutations. The outcome of this research shows that, the deviation of energy use values from one shape to another is relatively small. In addition to that, window to wall ratio appears slightly overpowering on the energy use pattern of a building than its shape. Shading design is found particularly helpful in reducing cooling energy demand in offices spaces. Overall, the energy performance of five archetypes is observed to comply with individual building aspect ratios (i.e. compactness). Thus, the findings of this project are expected to provide useful guidelines to the architects to utilize building geometry as an energy saving measure when designing office buildings.

scholarly journals Determining The Effect Of Building Geometry On Energy Use Patterns Of Office Developments

2021 ◽  
Author(s):  
Tonima Ferdous
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Energy Use ◽  
Energy Performance ◽  
Design Parameters ◽  
Use Patterns ◽  
Aspect Ratios ◽  
Building Geometry ◽  
Use Values ◽  
Solar Control

The project investigates potentials of building geometry to minimize energy consumption in office developments. Five distinct building geometries are developed to represent mid-size office occupancies in the context of Toronto (located at southern Ontario, Canada). A square, a rectangle elongated on eastwest, a rectangle elongated on north- south, an H-shape, and a cruciform are examined with varied design parameters; such as: window to wall ratio and external static solar control devices (horizontal overhangs and vertical fins). The IES VE software is applied to predict the yearly energy consumption results for 40 analysis permutations. The outcome of this research shows that, the deviation of energy use values from one shape to another is relatively small. In addition to that, window to wall ratio appears slightly overpowering on the energy use pattern of a building than its shape. Shading design is found particularly helpful in reducing cooling energy demand in offices spaces. Overall, the energy performance of five archetypes is observed to comply with individual building aspect ratios (i.e. compactness). Thus, the findings of this project are expected to provide useful guidelines to the architects to utilize building geometry as an energy saving measure when designing office buildings.

Recommended angle of a modular dynamic façade in hot-arid climate: daylighting and energy simulation

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Seyedeh Samaneh Golzan ◽  
Mina Pouyanmehr ◽  
Hassan Sadeghi Naeini
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Energy Performance ◽  
Arid Climate ◽  
Visual Comfort ◽  
Building Envelopes ◽  
Content Type ◽  
Optimum Angle ◽  
Energy Efficient Buildings ◽  
Hot Arid Climate

PurposeThe modular dynamic façade (MDF) concept could be an approach in a comfort-centric design through proper integration with energy-efficient buildings. This study focuses on obtaining and/or calculating an efficient angle of the MDF, which would lead to the optimum performance in daylight availability and energy consumption in a single south-faced official space located in the hot-arid climate of Yazd, Iran.Design/methodology/approachThe methodology consists of three fundamental parts: (1) based on previous related studies, a diamond-based dynamic skin façade was applied to a south-faced office building in a hot-arid climate; (2) the daylighting and energy performance of the model were simulated annually; and (3) the data obtained from the simulation were compared to reach the optimum angle of the MDF.FindingsThe results showed that when the angle of the MDF openings was set at 30°, it could decrease energy consumption by 41.32% annually, while daylight simulation pointed that the space experienced the minimum possible glare at this angle. Therefore, the angle of 30° was established as the optimum angle, which could be the basis for future investment in responsive building envelopes.Originality/valueThis angular study simultaneously assesses the daylight availability, visual comfort and energy consumption on a MDF in a hot-arid climate.

Impact of urbanization on per capita energy use and emissions in India

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Stuti Haldar ◽  
Gautam Sharma
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Population Density ◽  
Carbon Dioxide Emissions ◽  
Energy Demand ◽  
Energy Use ◽  
Energy Intensity ◽  
Series Data ◽  
Content Type ◽  
Per Capita

Purpose The purpose of this study is to investigate the impacts of urbanization on per capita energy consumption and emissions in India. Design/methodology/approach The present study analyses the effects of urbanization on energy consumption patterns by using the Stochastic Impacts by Regression on Population, Affluence and Technology in India. Time series data from the period of 1960 to 2015 has been considered for the analysis. Variables including Population, GDP per capita, Energy intensity, share of industry in GDP, share of Services in GDP, total energy use and urbanization from World Bank data sources have been used for investigating the relationship between urbanization, affluence and energy use. Findings Energy demand is positively related to affluence (economic growth). Further the results of the analysis also suggest that, as urbanization, GDP and population are bound to increase in the future, consequently resulting in increased carbon dioxide emissions caused by increased energy demand and consumption. Thus, reducing the energy intensity is key to energy security and lower carbon dioxide emissions for India. Research limitations/implications The study will have important policy implications for India’s energy sector transition toward non- conventional, clean energy sources in the wake of growing share of its population residing in urban spaces. Originality/value There are limited number of studies considering the impacts of population density on per capita energy use. So this study also contributes methodologically by establishing per capita energy use as a function of population density and technology (i.e. growth rates of industrial and service sector).

SIMULATION BASED COMPLEX ENERGY ASSESSMENT OF OFFICE BUILDING FENESTRATION

2010 ◽  
Vol 16 (3) ◽  
pp. 345-351 ◽  
Author(s):  
Violeta Motuzienė ◽  
Egidijus Saulius Juodis
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Energy Demand ◽  
Office Building ◽  
Negative Effects ◽  
Energy Assessment ◽  
The North ◽  
Complex Evaluation ◽  
Lighting Energy ◽  
Glazed Facade

The number of office buildings with highly fenestrated facades is currently increasing in Lithuania and neighboring countries. Highly fenestrated facades reduce energy consumption for lighting and simultaneously increase energy consumption for heating, cooling, air conveying and may cause thermal and visual discomfort. Pursuing to reduce negative effects of the highly glazed facade, special glasses are frequently used. However, such windows usually increase demand for lighting energy. Therefore, when making early decisions about glazing the building, it is important to have a complex evaluation of energy demand related to the specific case. The paper presents the results of analysis made using energy simulation tools. The obtained results have shown that when shading is not applied, the north is the most energy efficient orientation to glazing for an air conditioned office building in cool climate zones like Lithuania. The most energy efficient window‐to‐wall ratios (WWR) for the south, east and west oriented façade are 20%, whereas for the north it makes 20–40%. However, such WWR values do not satisfy standard requirements for day lighting. Santrauka Pastaraisiais metais Lietuvoje ir kaimyninese šalyse daugeja administracines paskirties pastatu, kuriu dauguma išoriniu atitvaru yra skaidrios. Didesnis istiklinimo plotas lemia mažesnius energijos poreikius apšvietimui, tačiau didina šildymo ir vesinimo sistemu energijos poreikius, sukelia šilumini bei vizualini diskomforta. Neigiamai dideliu skaidriu atitvaru itakai sumažinti naudojami tamsinti ir kitu specialiu charakteristiku stiklai, tačiau tai savo ruožtu didina energijos poreiki apšvietimui. Todel, priimant sprendimus del pastato istiklinimo, svarbu prieš tai kompleksiškai išnagrineti konkretaus sprendimo itaka pastato energijos poreikiams. Straipsnyje pateikiama modeliuojant gautu rezultatu analize. Rezultatai parode, kad vesaus klimato šalyse, kurioms priklauso ir Lietuva, kondicionuojamu administraciniu pastatu fasadu, kai nenaudojamos apsaugos nuo saules priemones, energiškai efektyviausias istiklinimas yra i šiaures puse. Energiškai efektyviausias santykinis fasado istiklinimo plotas pietines, rytines ir vakarines orientacijos fasadams yra 20 %, o šiaurines ‐ 20–40 %. Tačiau tokie istiklinimo plotai neatitinka norminiu natūralaus apšvietimo reikalavimu.

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