A Lean and Green approach for the eco-efficiency assessment on construction sites: description and case study

2022 ◽  
Author(s):  
Marilia de Oliveira Rezende ◽  
Marcella Ruschi Mendes Saade ◽  
Andréa Oliveira Nunes ◽  
Vanessa Gomes da Silva ◽  
Virgínia Aparecida Silva Moris ◽  
...  
Keyword(s):  
Construction Sites ◽  
Green Approach ◽  
Efficiency Assessment ◽  
Lean And Green

scholarly journals A Lean & Green approach for the ecoefficiency assessment on construction sites: description and case study

2021 ◽  
Author(s):  
Marilia de Oliveira Rezende ◽  
Marcella Ruschi Mendes Saade ◽  
Andréa Oliveira Nunes ◽  
Vanessa Gomes da Silva ◽  
Virgínia Aparecida Silva Moris ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Environmental Sustainability ◽  
Value Added ◽  
Added Value ◽  
Value Stream Mapping ◽  
Construction Sites ◽  
Green Approach ◽  
Steel Framing ◽  
Lean And Green

Abstract Lean and Green seeks to increase added value and reduce waste generation, while also improving environmental sustainability performance in production activities. However, no studies were found exploring the potential results by combining Lean and Green with eco-efficiency assessments in the construction sector. Therefore, this paper aimed at proposing and testing a Lean and Green approach in three steps. Step 1 was based on the Value Stream Mapping application to calculate the Value Added of construction activities; step 2 focused on the Life Cycle Assessment of evaluated construction activities, and step 3 performed an eco-efficiency assessment of construction sites to guide decision-makers on selecting more lean and sustainable construction materials and strategies. A case study was developed for a 300m²-house construction considering two build options (reinforced concrete frame vs. light steel frame). The results affirm that light steel framing showed a Value Added 43% higher than the reinforced concrete in step 1, whilst having 8% less Global Warming Potential impacts in step 2. Step 3 concluded that light steel framing was 1.38 times more eco-efficient than the concrete structure. The proposed approach can be suitable for any building system evaluation in terms of construction technologies, materials, and/or production strategies and investigations towards more sustainable production.

scholarly journals An integrated lean and green approach for improving sustainability performance: a case study of a packaging manufacturing SME in the U.K.

2019 ◽  
Vol 30 (5-6) ◽  
pp. 353-368 ◽  
Author(s):  
Sonal Choudhary ◽  
Rakesh Nayak ◽  
Manoj Dora ◽  
Nishikant Mishra ◽  
Abhijeet Ghadge
Keyword(s):  
Sustainability Performance ◽  
Green Approach ◽  
Lean And Green

scholarly journals The Performance of Adaptive Approach in Lean and Green Operations

2021 ◽  
Vol 333 ◽  
pp. 06006
Author(s):  
Wei Dong Leong ◽  
Hon Loong Lam ◽  
Chee Pin Tan ◽  
Sg Ponnambalam
Keyword(s):  
Manufacturing Sector ◽  
Dynamic Performance ◽  
Resource Scarcity ◽  
Production Performance ◽  
Literature Study ◽  
Green Approach ◽  
Lean And Green ◽  
Main Components ◽  
Green Model

In recent years, the manufacturing sector has been pressured with global warming and resource scarcity. This issue has triggered the industry to seek for solutions to improve the sustainability of their production. Based on literature study, the main components of an organisation consists of manpower, machine, money, material and environment. Thus, the fundamentals need to be addressed to improve the production performance. In this study, an adaptive lean and green approach is presented to identify the priority areas that can improve the organisation performance. Backpropagation algorithm is incorporated into the adaptive model to analyse the dynamic performance of the organisation. However, the input of industry expert is required to prioritise the initial input of the main components. This is relatively important as prioritisation of main components defer from sectors. A case study will be illustrated with the adaptive lean and green model. Operation improvements shall be observed through the implementation of the proposed method.

scholarly journals TESTING THE POSITIONAL ACCURACY OF OPENSTREETMAP DATA FOR MAPPING APPLICATIONS

2016 ◽  
Vol 42 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Khalid l. A. El-Ashmawy
Keyword(s):  
Local Area ◽  
Transportation Systems ◽  
Comparative Approach ◽  
Construction Sites ◽  
Positional Accuracy ◽  
Web Mapping ◽  
Web Map ◽  
Land Surveying ◽  
Preliminary Planning

OpenStreetMap, a web mapping platform, is the most popular web map source for use in locationbased services with specific emphasis on pedestrian navigation, tourist guide applications, and other location-based search applications. This paper tests the positional accuracy of OpenStreetMap for the mapping applications using the case study in the campus of UMM El-Qura University, Makah, Saudi Arabia. The proposed testing method consists of statistical comparative approach using OpenStreetMap data and accurate land surveying reference data. The results show that OpenStreetMap data has positional accuracy of 1.57 m which is suitable for generating planimetric maps of scale 1:5000 or smaller. The obtained results open the door for using the OpenStreetMap maps for applications such as general preliminary planning where larger areas are covered but only moderate accuracy is needed. Applications include mapping the general layout of potential construction sites, proposed transportation systems, and existing facilities. The proposed methodology in this paper is of great interest to small engineering firms for the generation of local area maps from OpenStreetMap data.

scholarly journals A DIAGNOSTIC EXPERT SYSTEM TO OVERCOME CONSTRUCTION PROBLEMS IN RIGID HIGHWAY PAVEMENT

2013 ◽  
Vol 19 (6) ◽  
pp. 846-861 ◽  
Author(s):  
Ahmed Mancy Mosa ◽  
Mohd Raihan Taha ◽  
Amiruddin Ismail ◽  
Riza Atiq O. K. Rahmat
Keyword(s):  
Expert System ◽  
Expert Knowledge ◽  
Computer Software ◽  
Efficient Solutions ◽  
Construction Sites ◽  
Literature Reviews ◽  
System Verification ◽  
Cost Efficient ◽  
Expert Reasoning

Constructing highway pavements faces complex problems, which are affected by multiple factors, where solution is nearly impossible without expert assistance. Diagnosing such construction problems and suggesting most suitable cost efficient solutions requires significant engineering expertise, which might not be available in all construction sites due to inadequate resource and remote locations. Developing an expert system in this domain is a very effective way to help novice engineers to overcome these problems and to learn about them. Moreover, the system can be used as an archive to document engineering knowledge and to share expertise among the experts in this domain. This article describes the development and evaluation stages of such a system, including knowledge acquisition, knowledge representation, system building, and system verification and validation. The initial knowledge is acquired from literature reviews. More expert knowledge is elicited through interviews and questionnaires. This knowledge is documented, analyzed, represented, and converted to computer software using the Visual Basic programming language and the system is called ES-CCPRHP. The system has been verified and validated in three ways: by extensive testing, comparison between system performance and expert reasoning, and case study. It can therefore be employed with confidence by end users.

Introduction

2017 ◽  
Author(s):  
Max Perry Mueller
Keyword(s):  
Nineteenth Century ◽  
White Supremacy ◽  
Religious History ◽  
Main Argument ◽  
Construction Sites ◽  
European Descent ◽  
Book Of Mormon ◽  
The Bible ◽  
Religious Writings

This chapter introduces the book’s main argument: that the three original American races, “black,” “red,” and, “white,” were constructed first in the written archive before they were read onto human bodies. It argues that because of America’s uniquely religious history, the racial construction sites of Americans of Native, African, and European descent were religious archives. The Mormon people’s relationship with race serves as a case unto itself and a case study of the larger relationship between religious writings and race. During the nineteenth century early Mormons taught a theology of “white universalism,” which held that even non-whites, whom the Bible and the Book of Mormon taught were cursed with dark skin because of their ancestors’ sin against their families, could become “white” through dedication to the restored Mormon gospel. But Mormons eventually abandoned this “white universalism,” and instead taught and practiced a theology of white supremacy.

Energy and Exergy Analysis on Gasification Processes

2015 ◽  
pp. 199-240
Author(s):  
Edgardo Olivares Gómez ◽  
Renato Cruz Neves ◽  
Elisa Magalhães de Medeiros ◽  
Mylene Cristina Alves Ferreira Rezende
Keyword(s):  
Energy Conversion ◽  
Thermodynamic Analysis ◽  
Chemical Reaction ◽  
Exergy Analysis ◽  
Gasification Process ◽  
Efficiency Assessment ◽  
Energy And Exergy ◽  
Thermochemical Processes ◽  
Energy And Exergy Analysis

In recent years, attention has focused on exergy analysis, a type of thermodynamic analysis which is an important tool for the efficiency assessment and the processes optimization when dealing with energy conversion and, particularly, thermochemical processes such as gasification. Thus, this chapter aims to introduce the fundamental concepts of energy and exergy and describe the energy and exergy evaluation tools, elucidating its importance for calculations applied to gasification processes. A case study was performed to show the proposal of energy and exergy analysis. Therefore, a single global gasification chemical reaction was used to represent the gasification process. This analysis can provide a tool to assess and develop models, simulations, calculations, and to optimize real gasification processes. Information and experiences covered in this chapter help to be put into perspective the technology, research and overcoming of challenges.

Energy and Exergy Analysis on Gasification Processes

2017 ◽  
pp. 1613-1646
Author(s):  
Edgardo Olivares Gómez ◽  
Renato Cruz Neves ◽  
Elisa Magalhães de Medeiros ◽  
Mylene Cristina Alves Ferreira Rezende
Keyword(s):  
Energy Conversion ◽  
Thermodynamic Analysis ◽  
Chemical Reaction ◽  
Exergy Analysis ◽  
Gasification Process ◽  
Efficiency Assessment ◽  
Energy And Exergy ◽  
Thermochemical Processes ◽  
Energy And Exergy Analysis

In recent years, attention has focused on exergy analysis, a type of thermodynamic analysis which is an important tool for the efficiency assessment and the processes optimization when dealing with energy conversion and, particularly, thermochemical processes such as gasification. Thus, this chapter aims to introduce the fundamental concepts of energy and exergy and describe the energy and exergy evaluation tools, elucidating its importance for calculations applied to gasification processes. A case study was performed to show the proposal of energy and exergy analysis. Therefore, a single global gasification chemical reaction was used to represent the gasification process. This analysis can provide a tool to assess and develop models, simulations, calculations, and to optimize real gasification processes. Information and experiences covered in this chapter help to be put into perspective the technology, research and overcoming of challenges.

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