scholarly journals Assessment of Carbon Emissions for the Construction of Buildings Using Life Cycle Analysis: Case Study of Lagos State

Author(s):  
Adekunle A. ◽  
Osagie Ibhadode ◽  
A.P Ibhadode ◽  
Shawon Msughter Caesar
World ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 425-441
Author(s):  
Katia Hueso-Kortekaas ◽  
José C. Romero ◽  
Raquel González-Felipe

Tomato is one of the most common crops across the world, but it is also one of the types of food that generates the most losses across its life cycle. This paper addresses this issue by providing a Life Cycle Analysis of greenhouse grown tomato in southern Spain. The results confirm that tomatoes are a thirsty and frail crop. Most of its energy demands and carbon emissions go to packaging (35%) and transportation (42%) as well as supplying water for their growth. There seems to be room for improvement in the recovery of energy (54.6%) and CO2 emissions, mainly addressing the waste treatment of packaging and plastic as well as improving transportation. Despite being highly water demanding, irrigation processes are already efficient in industrial greenhouses, and most of the water recovery will need to take place in the waste recovery stage. Food losses at the consumption phases do not constitute a significant loss in energy or a significant amount of carbon emissions saved.


Fuel ◽  
2019 ◽  
Vol 254 ◽  
pp. 115627 ◽  
Author(s):  
Marco Tomatis ◽  
Ashak Mahmud Parvez ◽  
Muhammad T. Afzal ◽  
Sannia Mareta ◽  
Tao Wu ◽  
...  

Author(s):  
Mandy Paschetag ◽  
André Paschetag ◽  
Florian Merkel ◽  
Christian Mehringer ◽  
Stephan Scholl

ChemSusChem ◽  
2014 ◽  
Vol 7 (12) ◽  
pp. 3521-3533 ◽  
Author(s):  
Denise Ott ◽  
Dana Kralisch ◽  
Ivana Denčić ◽  
Volker Hessel ◽  
Yosra Laribi ◽  
...  

2016 ◽  
Vol 20 (3) ◽  
pp. 465-483 ◽  
Author(s):  
Ilpo Pohjola ◽  
Anu Puusa

Purpose This paper aims to examine the dynamics of a community of practice (CoP) through a case study of eCars – Now! They offer open-source blueprints of the electric conversion kits globally. The authors analysed the CoP by considering its entire life cycle, starting from the motives for its establishment, through its active performance, up to the current stage, where the members need to decide whether the community will remain viable. Particular attention was paid to the group dynamics and issues that seemed relevant to the change in dynamics which determine whether a CoP maintains its vitality or dissipates. Design/methodology/approach The qualitative case study was chosen as the research strategy (Yin, 1984) to answer the research question and understand the target phenomenon of the CoP by analysing textual data. This particular case was chosen because of its unusual revelatory value for the case CoP which aims at creating a tangible innovation by using a platform that normally aims at intangible problem-solving (Eisenhardt and Graebner, 2007). In the data collection, the authors used method and researcher triangulation (Patton, 1990). Findings Life cycle analysis revealed four themes that explained the change in the group dynamics and the dispersal of the community: differentiation and dispersal of interests, growth that resulted in role differentiation, virtuality in community development and inclusion of investors. The themes were all related to the fact that the case community operated with not only knowledge, but also with a tangible product. Therefore, the tangibility of a problem to be solved seems to play a pivotal role in a CoP’s operations and dynamics and, in part, also explains the changing role of information and communications technology (ICT) in the process. Research limitations/implications However, this paper identified also different ways to characterize community participation, which was also relevant from group dynamics point of view. Thus, the topic should be studied further. Group dynamics in general, as it relates to the success of CoPs, should be also investigated further. Additional studies should implement the inclusion of external resources in the community. Further research is also needed to investigate tangible and intangible outcomes achieved through CoPs. Much of the available research was conducted over short periods; prolonged interactions in a CoP context could show different results. Practical implications In conclusion, at the beginning of the life cycle of the eCars community, ICT played a significant role. It helped increase awareness of the community in the first place and enabled people to join in, which thus enabled the community to evolve. When the operations evolved and the life cycle progressed, both the physical meeting place as well as personal interaction and communication became emphasized and much more important. In the maturing stage, the role of ICT, and especially social media, is the essential part of the community. Social implications This analysis suggests that at the early stage of a community, the plans can be somewhat random, even utopian, but when the community evolves, this uncertainty can become a problem. First, it affects achieving the actual, and in this case, concrete results. Second, uncertainty and unclarity dampen enthusiasm and motivation, which are of utmost importance due to the voluntary participation. This paper also concludes that when the operations evolved and the life cycle progressed, both the physical meeting place as well as personal interaction and communication became increasingly important. Originality/value This paper argues that the ideological basis for this kind of community should be openness. All information should be available for everyone who registers to the community platform on the internet. This community was working in the mindset of open innovation. Technical documentation and all other material were available for everyone in the community’s wiki pages, which attracted a lot of people who were delighted by eCars. Many advisors delivered technical information and good advice to the practitioners of the community through the platform. The hang arounds were also very well-informed in this stage regarding how the core group was working.


2013 ◽  
Vol 367 ◽  
pp. 333-338 ◽  
Author(s):  
Jie Xu

Thepaper proposes to established the measurement models of China's coal-energychain carbon emissions based on life-cycle analysis, Through comparing the source andsize of the greenhouse gas emissions of coal-energy chain, the paper gains the totalCO2 equivalent emissions of coal-fired power plant generate unit generatingcapacity during coal-energy chain by detailed calculations is 990.716331 gCO2/kwh.Among them, greenhouse gas emission of coal-fired power generation sector isthe main link in coal-energy chain and aslo the focus of regulation andemissino reduction. Finally puts forward some suggestions to achieve low-carbonpath of China'selectric power industry.


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