Technical and Economic Analysis of Promoting the Application of ACCC in China

2012 ◽  
Vol 614-615 ◽  
pp. 1939-1944
Author(s):  
Lei Li ◽  
Wei Chen ◽  
Jian Cheng Wan

This paper presents that Aluminium Conductor Composite Core (abbreviated as ACCC) is suitable for using in reconstructed overhead line projects, but is not economical for using in new construction projects in China. When ACCC can be used in new overhead line projects, the cut-off point price is twice of the conventional Aluminium Conductor Steel Reinforced (abbreviated as ACSR) under same section,and further analysis of price components of ACCC is considered that the prices could decrease further. In China, ACCC will have application value for large area popularization.

Author(s):  
Rita de Cassia Monteiro Moraes ◽  
Alcebíades Negrão MAcedo ◽  
André Augusto Azevedo Montenegro Duarte ◽  
Hito Braga de Moraes ◽  
Luciano Pinto de Moraes Neto ◽  
...  

This article appropriates a new methodology for evaluating port projects involving not only economic analysis, but also strategic factors, technological and market, wich provide greater security and assertiveness on the search for the development of a Hub Port model as an option to optimize the logistics of port operations. To achieve the objectives of the proposal, a technical and economic analysis model was developed to demonstrate the feasibility of the project with the inclusion of technological features (deep of ships, modes of transport linking the port to its region of land influence, expansion area) and market components (cargo demands, free trade zone, distance from the main centers of world trade) that decisively interfere in the attractiveness of the project. Linked to this proposal, a risk analysis was carried out, including uncertainties involving economic and strategic aspects, with market and technological variables. To achieve the objectives of the study, the Monte Carlo method operated by the software “@RiskTM” was used, where the analyzes of positive and negative interferences in the project were carried out. To evaluate the proposed methodology, it was applied in two cases studies of the feasibility of a new logistics platform in Brazil and Africa, with the implementation of an offshore cargo concentrator port. One was in the State of Pará, in northern Brazil, and the other in Dakar, Senegal, which can integrate the entire South America and Africa, respectivaly. The results of those analysis show very favorable indicators for the implementation of the proposed projects. Considering that, strategic factors introduced in the study, the greatest influences were: transport modes that link the port to the land influence zone and the draft of the ships. For the offshore port of Pará, strategic factors boosted the viability result by approximately 55% for a 95% probability of success and for Dakar, in Africa, the results were 100%, both for a 14% rate and a life span of 30 years showing that strategic factors are elements very importatants, as they produced almost 100% and 70% elasticity in the results, respectivaly, so they should be considered in feasibility studies of hub ports in addition to tradicioanl economic analysis.


Desalination ◽  
2021 ◽  
Vol 503 ◽  
pp. 114925
Author(s):  
David von Eiff ◽  
Pak Wai Wong ◽  
Yonggang Gao ◽  
Sanghyun Jeong ◽  
Alicia Kyoungjin An

2021 ◽  
Vol 13 (9) ◽  
pp. 5041
Author(s):  
Ayyagari Ramani ◽  
Borja García de Soto

Multiple sustainability standards and rating systems have been developed to draw attention to constructing sustainable buildings. The Pearl Rating System (PRS) is a mandate for all new construction projects in Abu Dhabi. Hence, it is important to understand the main components, advantages, and limitations of the PRS. The feasibility and the practical relevance of the PRS are still being studied. This paper addresses this gap and critically evaluates the PRS against some of the well-established rating systems like LEED and BREEAM. The analysis suggests that the PRS considers the cultural aspect of sustainability, in addition to the environmental, societal, and economic aspects. It was also found that most rating systems, including the PRS, have a very superficial inclusion of life cycle assessment (LCA). The paper finally concludes with other observations and outlook for a more robust implementation of the PRS.


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