Underground soil and thermal conductivity materials based heat reduction for energy-efficient building in tropical environment

2013 ◽  
Vol 24 (2) ◽  
pp. 185-200 ◽  
Author(s):  
M. R. Alam ◽  
M. F. M. Zain ◽  
A. B. M. A. Kaish ◽  
M. Jamil
Keyword(s):  
Thermal Conductivity ◽  
Energy Efficient ◽  
Tropical Environment ◽  
Energy Efficient Building

scholarly journals Energy efficient building envelope using waste PET in concrete

2020 ◽  
Vol 307 ◽  
pp. 01022
Author(s):  
Gitanjali Thakur ◽  
Mohamad Asalam ◽  
Mohammed El Ganaoui
Keyword(s):  
Thermal Conductivity ◽  
Energy Efficient ◽  
Chemical Resistance ◽  
Concrete Block ◽  
Building Envelope ◽  
Environmental Threat ◽  
Concrete Blocks ◽  
Global Threat ◽  
Partial Weight ◽  
Energy Efficient Building

One of the major environmental threat in the world today is the increased production of plastic and its usage. The inept plastic waste management system with regard to its recycling and energy recovery in the developing countries creates a global threat as a major land and water body pollutant. However, its durability, thermal properties, and chemical resistance make plastics an alternate choice as a building material. This study investigates the use of plastic in concrete mixture with an objective to improve the thermal performance of the building. The shredded plastic fibers from plastic bottles (polyethylene terephthalate, PET) were used as a partial weight replacement (2.5%, 5%, and 7.5%) of coarse aggregate in concrete blocks. The cubes were cast using the Indian standards (IS 456) and the essential tests were performed. Additionally, experiments were designed to investigate the change in the thermal conductivity of the concrete block due to the varying amount of plastic. It was found that the use of PETs affected the compressive strength and also decreased the thermal conductivity of the concrete blocks. The experimental results suggest that PETs can be used in the construction of energy-efficient building to handle the environmental concerns because of its abundance.

scholarly journals The Effect of Density on the Delicate Balance between Structural Requirements and Environmental Issues for AAC Blocks: An Experimental Investigation

2021 ◽  
Vol 13 (23) ◽  
pp. 13186
Author(s):  
Daniele Ferretti ◽  
Elena Michelini
Keyword(s):  
Thermal Conductivity ◽  
Energy Efficient ◽  
Construction Materials ◽  
Mechanical Index ◽  
Material Density ◽  
Safety Issues ◽  
Heating And Cooling ◽  
Energy Efficient Buildings ◽  
Optimum Material ◽  
Energy Efficient Building

Among other construction materials, Autoclaved Aerated Concrete (AAC) offers several advantages to face the pressing need to build more sustainable and energy-efficient buildings. From the building side, the low thermal conductivity of AAC allows the realization of energy-efficient building envelopes, with interesting savings in terms of heating and cooling processes. The equilibrium between structural performances (related to safety issues) and energy efficiency requirements is, however, very delicate since it is strictly related to the search for an “optimum” material density. Within this context, this work discusses the results of wide experimental research, showing the dependency of the most important mechanical properties (compressive strength, elastic modulus, flexural strength and fracture energy) from density, as well as the corresponding variation in thermal conductivity. In order to identify the better compromise solution, a sort of eco-mechanical index is also defined. The big challenge for future researches will be the improvement of this eco-mechanical index by working on pore structure and pore distribution within the material without significantly reducing the density and/or by improving the strength of the skeleton material.

COST-EFFECTIVE TECHNOLOGIES TO CONTROL INDOOR AIR QUALITY AND COMFORT IN ENERGY EFFICIENT BUILDING RETROFITTING

2015 ◽  
Vol 14 (7) ◽  
pp. 1487-1494 ◽  
Author(s):  
Marco Arnesano ◽  
Gian Marco Revel ◽  
Filippo Pietroni ◽  
Jurgen Frick ◽  
Manuela Reichert ◽  
...  
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Energy Efficient ◽  
Cost Effective ◽  
Energy Efficient Building

PROJECT ENGINEERING & FEASIBILITY: A BRIEF REVIEW

2020 ◽  
Author(s):  
JAYDIP DATTA
Keyword(s):  
Data Structure ◽  
Energy Efficient ◽  
Management System ◽  
Chemical Engineering ◽  
Operation Management ◽  
Energy Audit ◽  
Industrial Economics ◽  
Industrial Project ◽  
Key Aspects ◽  
Energy Efficient Building

In this Review we will point out some key aspects of Industrial Project Feasibility w.r.t Optimization, Operation Management, Energy Audit necessary to make a project successful . Continued Work : OPTIMISATION: A VIEW FROM INDUSTRIAL ECONOMICS ,DATA STRUCTURE & MANAGEMENT SYSTEM : AN INTEGRATED ,CHEMICAL ENGINEERING : A VIEW FROM MY EXPERIANCE ,. ND FEBBRAIO 2020 , Chapter 6 , Energy efficient building , pp. 58-61

scholarly journals Low-Power Multiplexer Structures Targeting Efficient QCA Nanotechnology Circuit Designs

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 1885
Author(s):  
Amjad Almatrood ◽  
Aby K. George ◽  
Harpreet Singh
Keyword(s):  
Energy Efficient ◽  
Building Blocks ◽  
Switching Frequency ◽  
Circuit Implementation ◽  
Suitable Candidate ◽  
Quantum Dot Cellular Automata ◽  
Performance Factors ◽  
Integration Density ◽  
Qca Circuits ◽  
Energy Efficient Building

Quantum-dot cellular automata (QCA) technology is considered to be a possible alternative for circuit implementation in terms of energy efficiency, integration density and switching frequency. Multiplexer (MUX) can be considered to be a suitable candidate for designing QCA circuits. In this paper, two different structures of energy-efficient 2×1 MUX designs are proposed. These MUXes outperform the best existing design in terms of power consumption with approximate reductions of 26% and 35%. Moreover, similar or better performance factors such as area and latency are achieved compared to the available designs. These MUX structures can be used as fundamental energy-efficient building blocks for replacing the majority-based structures in QCA. The scalability property of the proposed MUXes is excellent and can be used for energy-efficient complex QCA circuit designs.

scholarly journals Modeling of non-standard geometry of energy-efficient building facades

2019 ◽  
Vol 91 ◽  
pp. 05024
Author(s):  
Natalia Knyazeva ◽  
Vladislav Larin
Keyword(s):  
Energy Efficient ◽  
Construction Projects ◽  
Parametric Modeling ◽  
Labor Costs ◽  
Building Facades ◽  
Standard Geometry ◽  
Energy Efficient Building ◽  
Standard Solutions

This article describes the approach of parametric modeling using modern software. This decision should help to change the already established rules for building BIM models. This approach became the basis of the idea of using parametric modeling for two main groups in the modern modeling of construction projects: modeling of the architectural appearance of the building and structures. This method can significantly reduce labor costs, and it also can be used to implement non-standard solutions in the design energy-efficient building facades.

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