scholarly journals Thermal Performance of Plastic Bottles Walls Reused in Building Construction for Waste Reduction

2019 ◽  
Vol 9 (1) ◽  
pp. 5311-5315
Keyword(s):  
Thermal Comfort ◽  
Energy Saving ◽  
Environmental Analysis ◽  
Thermal Performance ◽  
Building Material ◽  
Energy Performance ◽  
Waste Reduction ◽  
Building Construction ◽  
Environmental Benefits ◽  
Wild Life

The research aims at studying the potential of reusing plastic water bottles as a building material and an alternative to traditional bricks, in a way that can minimize waste and hence reduce ecological imbalance. The research compares the energy performance of building with traditional bricks and building with plastic bottle blocks. The researchers built digitally two sample rooms: (3 meter width*3 meter length*3 meter Height) with both materials, Then they took on-site measurements for energy performance of the rooms. The rooms were built on DesignBuilder software in order to help in environmental analysis of buildings, and compare the efficiency of the two materials of sample rooms. Results showed that building with plastic water bottles has some environmental benefits other than reuse of a material that hardly decomposes. It has its effects on energy saving and thermal comfort. Further research and experiments is encouraged as the plastic residue dilemma grows more in modern societies and affects the ecological balance and wild life.

scholarly journals THERMAL PERFORMANCE COMPARISON ON FLOORING MATERIALS

2021 ◽  
Author(s):  
G.H. Galabada ◽  
◽  
P.D. Dharmaratne ◽  
H. Galkanda ◽  
R.U. Halwatura ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Thermal Performance ◽  
Building Material ◽  
Building Materials ◽  
Construction Materials ◽  
Performance Comparison ◽  
Building Construction ◽  
Effective Role ◽  
Flooring Materials ◽  
Flooring Material

New building materials and technologies that provide thermal comfort are expected to gain popularity in the recent past. Hence, efforts to incorporate new building material solutions are needed to protect potential populations from the threats of thermal stress that cause an increase in temperatures due to climate change. The earth is identified as the most effective building material to improve the thermal comfortability inside the building. Among several building construction materials, the flooring material provides a more effective role with respect to thermal comfort in a building. This paper present the evaluation and comparison work carried out to investigate the thermal performance of newly invented soil based flooring material with other common floorings in Sri Lanka. Temperature measurements were taken on the top surface of flooring materials and were compared the surface temperature of each other and indoor air temperature. The results reveal that the soil floor shows a lesser temperature at a significant level than the other floorings. Hence, it can be proved that the building construction materials play an important role and earth is the best sustainable material with respect to the indoor thermal comfortability thus, end-user.

scholarly journals Efficacy of Energy Efficiency and Thermal Comfort Related Retrofit for Existing New Zealand Houses

2021 ◽  
Author(s):  
◽  
Yanguang Zhang
Keyword(s):  
Energy Efficiency ◽  
New Zealand ◽  
Cost Effectiveness ◽  
Thermal Comfort ◽  
Energy Saving ◽  
Energy Requirement ◽  
Water System ◽  
Energy Performance ◽  
Hot Water ◽  
Space Heating

<p>Many New Zealand studies have argued that house energy retrofit produces limited benefits, but the issue of how existing house retrofitting can lead to better energy performance and comfort improvement is little explored. The aim of this thesis was to examine the influence of house retrofit on energy efficiency and thermal comfort, using house model simulation and calculation. This study gives a holistic house retrofit approach in thermal comfort improvement and energy conservation. Three house retrofit categories were defined by household energy breakdown: Space Heating Retrofit, Hot Water System Retrofit and Appliances Retrofit. This study started with an investigation of New Zealand existing house stock. A typical house model was defined by the summarized common physical characteristics. This house model was used for retrofit testing. For the building space heating retrofit study, a series of thermal simulations was completed with different retrofit options. Thermal simulation results were compared both in thermal comfort and space heating energy requirement. It was discovered that the optimum level full insulation retrofit significantly reduced space heating energy requirement and also improved thermal comfort. Retrofit solutions for water heating, lighting and appliances were compared by cost and energy saving. Cost effectiveness cross comparison for all of the retrofit solutions was carried out. Retrofitting for space heating system and hot water system can be considered for long term cost effectiveness. Appliances and lighting retrofit have a higher efficacy than other retrofit options in terms of energy saving and cost benefit cycle. These findings are used to provide suggestions for retrofitting of existing houses.</p>

scholarly journals Development of strategy for combined smart ventilated window and PCM energy storage control for residential building energy saving

2021 ◽  
Vol 2042 (1) ◽  
pp. 012161
Author(s):  
Yue Hu ◽  
Per Kvols Heiselberg
Keyword(s):  
Energy Storage ◽  
Thermal Comfort ◽  
Energy Saving ◽  
Control Strategy ◽  
Energy Savings ◽  
Control Strategies ◽  
Average Energy ◽  
Residential Building ◽  
Energy Performance ◽  
Before And After

Abstract The paper studies the energy renovation of a residential building with new façade solutions combining smart ventilated window (VW) and PCM energy storage and the corresponding control strategy to ensure energy savings. The study is carried out by Energyplus modelling comparing the energy consumption and thermal comfort of an apartment before and after renovation. A detailed control strategy is introduced and simulated. The modelling results of the apartment before and after retrofit indicate that with the designed control strategies, the average energy saving percentage of the apartment with PCM energy storage and VW compared to the apartment without PCM energy storage and VW is 29%. The rooms with PCMVWs achieve higher energy saving than the rooms with only VWs. The PCM energy storage improves energy performance of the VWs for both heating and cooling seasons. With the renovation, the thermal comfort of all the rooms are improved for cooling season.

scholarly journals Efficacy of Energy Efficiency and Thermal Comfort Related Retrofit for Existing New Zealand Houses

2021 ◽  
Author(s):  
◽  
Yanguang Zhang
Keyword(s):  
Energy Efficiency ◽  
New Zealand ◽  
Cost Effectiveness ◽  
Thermal Comfort ◽  
Energy Saving ◽  
Energy Requirement ◽  
Water System ◽  
Energy Performance ◽  
Hot Water ◽  
Space Heating

<p>Many New Zealand studies have argued that house energy retrofit produces limited benefits, but the issue of how existing house retrofitting can lead to better energy performance and comfort improvement is little explored. The aim of this thesis was to examine the influence of house retrofit on energy efficiency and thermal comfort, using house model simulation and calculation. This study gives a holistic house retrofit approach in thermal comfort improvement and energy conservation. Three house retrofit categories were defined by household energy breakdown: Space Heating Retrofit, Hot Water System Retrofit and Appliances Retrofit. This study started with an investigation of New Zealand existing house stock. A typical house model was defined by the summarized common physical characteristics. This house model was used for retrofit testing. For the building space heating retrofit study, a series of thermal simulations was completed with different retrofit options. Thermal simulation results were compared both in thermal comfort and space heating energy requirement. It was discovered that the optimum level full insulation retrofit significantly reduced space heating energy requirement and also improved thermal comfort. Retrofit solutions for water heating, lighting and appliances were compared by cost and energy saving. Cost effectiveness cross comparison for all of the retrofit solutions was carried out. Retrofitting for space heating system and hot water system can be considered for long term cost effectiveness. Appliances and lighting retrofit have a higher efficacy than other retrofit options in terms of energy saving and cost benefit cycle. These findings are used to provide suggestions for retrofitting of existing houses.</p>

Thermal Comfort and Energy Performance Assessment for Residential Building in Temperate Continental Climate

2015 ◽  
Vol 725-726 ◽  
pp. 1375-1380 ◽  
Author(s):  
Sergey Korniyenko
Keyword(s):  
Thermal Comfort ◽  
Field Study ◽  
Thermal Performance ◽  
Residential Building ◽  
Energy Performance ◽  
Building Envelope ◽  
Modern Architecture ◽  
Actual Problem ◽  
Second Stage ◽  
Continental Climate

The increase of thermal comfort and energy performance of buildings is an actual problem of modern architecture and construction. The paper based on field study gives the assessment of thermal comfort and energy performance for multifamily residential building in temperate continental climate. The program of the field study included the measurements of microclimate parameters in rooms of various apartments (first stage) and of the thermal performance of building envelope elements (second stage). The results of the field study showed that the thermal comfort and thermal performance of building envelope elements were not provided. The deterioration of thermal comfort and thermal performance of the building can be caused by numerous defects allowed in the course of construction. Thermal modernization of the building is necessary for the purpose of elimination of the specified defects and increase of energy performance.

scholarly journals Variables of influence on thermal performance of buildings under transient conditions

2021 ◽  
Vol 12 ◽  
pp. e021023
Author(s):  
Camila Carvalho Ferreira ◽  
Henor Artur de Souza ◽  
Joyce Correna Carlo
Keyword(s):  
Thermal Comfort ◽  
Thermal Performance ◽  
Natural Ventilation ◽  
Residential Buildings ◽  
Performance Standards ◽  
Gain Coefficient ◽  
Energy Performance ◽  
Single Family ◽  
Hot Climate ◽  
Climate Analysis

Residential buildings significantly increase electricity demand, especially in developing countries. In this case, the requirements addressed by the standards can ensure the climatic adequacy of the envelope, enhance thermal performance, and promote thermal comfort conditions while reducing energy consumption. However, the criteria for evaluating the thermal performance of a building’s envelope that is commonly adopted in energy performance standards and codes have proved to be inefficient in hot climates. The heat exchanges within buildings are dependent on solar radiation and ventilation. The purpose of this article is to establish the variables with the greatest influence on the thermal performance of naturally ventilated dwellings in hot climates (equatorial, tropical and subtropical). For this investigation, a factorial design was adopted for sensitivity analysis. The structure of the factorial experiment defined the simulations of four patterns of single-family and multifamily residential buildings. We varied the thermophysical properties of the external walls and roofs, the heat gain coefficient of the openings, and natural ventilation. Brazil was adopted as a basis for climate analysis, including equatorial, tropical and subtropical climates. The analyses were based on comfort hours in an adaptive model and statistically evaluated using Analysis of Variance (ANOVA) tests. In general, the absorption of the walls and cover, the thermal transmittance of the cover and the natural ventilation were the variables of greatest influence on thermal comfort in a hot climate.

Implementing energy saving measures

2015 ◽  
Vol 17 (2) ◽  
pp. 134-156 ◽  
Author(s):  
Brano Glumac ◽  
Marieke A. Oosterbaan ◽  
Wim F. Schaefer ◽  
Kairi Sulla
Keyword(s):  
Energy Efficiency ◽  
Real Estate ◽  
Energy Saving ◽  
Energy Performance ◽  
Corporate Image ◽  
Environmental Benefits ◽  
External Energy ◽  
Content Type ◽  
Energy Factors

Purpose – This paper aims to propose a decision support tool that would aid decision-makers to implement energy-saving measures efficiently in a corporate real estate. Design/methodology/approach – The tool consists of a system dynamic model that allows describing and quantifying the complex interaction between potential maintenance scenarios, external energy factors and case-specific conditions. In addition, to include the uncertainty of some of the input variables related to the external energy factors, Monte Carlo simulation has been applied. Findings – A case study of a city hall in The Netherlands showed the usability of the proposed tool. Over the selected period of 20 years, applying the chosen set of interventions, the simulation showed possible gains in the net present value and significant decrease of energy consumption and carbon emission. Municipal officials and consultants verified the tool for energy efficiency. Research limitations/implications – Although the tool has proved its functionality in one case study, to test its robustness, additional case studies would be preferable. Practical implications – The assessment tool can help organizations in assessing energy-efficient maintenance scenarios that include multiple technical energy efficiency interventions as a part of other maintenance activities. Originality/value – There are numerous ways to increase building’s energy efficiency, but a lack of knowledge is often hindering the enhancement of maximal benefits. A tool that would assess both financial and environmental benefits of potential technical intervention would provide useful insights into corporate’s real estate current and possible future energy performance. This would aid corporations in making better decisions regarding finances, and on the long run, it will bring an improved corporate image.

scholarly journals Assessment of Environmental and Energy Performance Criteria for Street Lighting Tenders using Decision Support System

2020 ◽  
Vol 2 (2) ◽  
pp. 72-79
Author(s):  
Prof. Sathish
Keyword(s):  
Energy Saving ◽  
Technical Information ◽  
Energy Performance ◽  
Environmental Benefits ◽  
Performance Criteria ◽  
Decision Tool ◽  
Road Lighting ◽  
Environmental Criteria ◽  
Lighting Simulation ◽  
Optimal Evaluation

Ineffective policies, missing technical information, large volumes of inappropriate luminaires, malpractice and several such reasons act as a hinderance for the adoption of LEDs in road lighting design despite being the most efficient sources of light. In national roads, the decision makers are sometimes confused by the low efficacy values of the luminaires. The tools for lighting simulation and projects in street lights require several energy performance indicators as described in EN13201-5 which is a novel system. This paper presents an optimal evaluation technique that involves the environmental criteria and can be implemented in the future energy policy. Evaluation of lighting tender and lighting designs is performed using a decision tool while analysing the significance of these factors. The corresponding offers and their ranking is evaluated by the decision tool. Several environmental benefits as well as improved energy saving can be achieved on implementation of this system. Simulation results shows reduced emission of CO2 and 75% energy saving using the best solution.

scholarly journals Experimental Data and Simulations of Performance and Thermal Comfort in a Typical Mediterranean House

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3311
Author(s):  
Víctor Pérez-Andreu ◽  
Carolina Aparicio-Fernández ◽  
José-Luis Vivancos ◽  
Javier Cárcel-Carrasco
Keyword(s):  
Energy Efficiency ◽  
Thermal Comfort ◽  
Energy Demand ◽  
Natural Ventilation ◽  
Thermal Characterization ◽  
Energy Performance ◽  
Building Stock ◽  
Energy Demands ◽  
Dwelling House ◽  
Account Standard

The number of buildings renovated following the introduction of European energy-efficiency policy represents a small number of buildings in Spain. So, the main Spanish building stock needs an urgent energy renovation. Using passive strategies is essential, and thermal characterization and predictive tests of the energy-efficiency improvements achieving acceptable levels of comfort for their users are urgently necessary. This study analyzes the energy performance and thermal comfort of the users in a typical Mediterranean dwelling house. A transient simulation has been used to acquire the scope of Spanish standards for its energy rehabilitation, taking into account standard comfort conditions. The work is based on thermal monitoring of the building and a numerical validated model developed in TRNSYS. Energy demands for different models have been calculated considering different passive constructive measures combined with real wind site conditions and the behavior of users related to natural ventilation. This methodology has given us the necessary information to decide the best solution in relation to energy demand and facility of implementation. The thermal comfort for different models is not directly related to energy demand and has allowed checking when and where the measures need to be done.

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