Economic Feasibility and Comprehensive Evaluation Model Analysis on Solid-Catalyzed Bio-Diesel Production

2012 ◽  
Vol 512-515 ◽  
pp. 515-519
Author(s):  
Yi Wang ◽  
Guan Yi Chen ◽  
Xiao Xiong Zhang ◽  
Li Ping Li ◽  
Bei Bei Yan
Keyword(s):  
Net Present Value ◽  
Comprehensive Evaluation ◽  
Raw Materials ◽  
Evaluation Model ◽  
Economic Feasibility ◽  
Molar Ratio ◽  
Time Dynamic ◽  
Payback Time ◽  
Comprehensive Evaluation Model ◽  
Diesel Production

Considerable attention has been given to bio-diesel as a surrogate to fossil fuel reserves and associated environmental problems of burning them. However, the high costs of bio-diesel production remain the main problem in making it competitive. Bio-diesel and glycerol are obtained by reacting virgin vegetable oil or animal fat with an alcohol in the presence of a catalyst or non-catalyst via transesterification. A conceptual process of heterogeneous SnO-catalyzed transesterification is designed based on the condition of 333K and atmospheric pressure, using methanol and waste oil with a molar ratio of 10:1 as raw materials. In this paper, the economic feasibility analysis based on static payback time, dynamic investment payback period, Financial Net Present Value and Return on Investment, is elaborated for 10kton/y capacity transesterification units. Comprehensive evaluation model on four typical methods are done, taking the following factors into consideration including natural resource utilization, impact on environment, economic feasibility and sustainable development of society. As a result, Heterogeneous acid-catalyzed transesterification seems more transcendent.

Comprehensive Evaluation for Cast-in-Place Lightweight Gypsum Wall Based on the Theory of Fuzzy Matter-Element

2014 ◽  
Vol 1006-1007 ◽  
pp. 1106-1112
Author(s):  
Jia Bin Gang ◽  
Hui Min Li ◽  
Xu Chen ◽  
Ming Zhe Gao
Keyword(s):  
Comprehensive Evaluation ◽  
Raw Materials ◽  
Evaluation Model ◽  
The Body ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Theoretical Underpinning ◽  
Performance Technology ◽  
Comprehensive Evaluation Model ◽  
By Products

Cast-in-place Lightweight Gypsum Wall is a new green wall that industrial by-products are used as the main raw materials and the spot construction is employed by casting in place for construction, which improves the integrity and seismic performance of the wall. Focusing on the cast-in-place light gypsum wall, the body comprehensive evaluation model is established based on the theory of fuzzy matter-element in the background of "Performance", "Technology", "Economy" and "Environment" for evaluation index system. Furthermore, AHP, expert scoring and other methods are used to determine the weights of each value in the evaluation index system.And the principle of comprehensive evaluation is the maximal subjection degree.These will serve as a theoretical underpinning to find the weakness of such walls and explore the market and application prospects.

Intelligent Lighting Control System in Large-Scale Sports Competition Venues

2018 ◽  
pp. 172-182 ◽  
Author(s):  
Shengmin CAO
Keyword(s):  
Control System ◽  
Large Scale ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Practical Significance ◽  
Lighting Control ◽  
Sports Events ◽  
Planning And Design ◽  
Comprehensive Evaluation Model

This paper mainly studies the application of intelligent lighting control system in different sports events in large sports competition venues. We take the Xiantao Stadium, a large­scale sports competition venue in Zaozhuang City, Shandong Province as an example, to study its intelligent lighting control system. In this paper, the PID (proportion – integral – derivative) incremental control model and the Karatsuba multiplication model are used, and the intelligent lighting control system is designed and implemented by multi­level fuzzy comprehensive evaluation model. Finally, the paper evaluates the actual effect of the intelligent lighting control system. The research shows that the intelligent lighting control system designed in this paper can accurately control the lighting of different sports in large stadiums. The research in this paper has important practical significance for the planning and design of large­scale sports competition venues.

Fuzzy Comprehensive Evaluation of Human Performance Management

2013 ◽  
Vol 756-759 ◽  
pp. 715-719
Author(s):  
Huan Cheng Zhang ◽  
Ya Feng Yang ◽  
Feng Li ◽  
Li Nan Shi
Keyword(s):  
Performance Management ◽  
Evaluation System ◽  
Human Performance ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment Process ◽  
College Performance ◽  
Performance Evaluation System ◽  
Comprehensive Evaluation Model

In the College, performance evaluation system is directly related to the harmonious development of the school. Taking into account the factors in the evaluation system is fuzzy, so this paper uses fuzzy comprehensive evaluation model. But the model is too subjective, so this paper combines neural network and data envelopment analysis method, which ensures that fuzzy comprehensive evaluation model is reasonable and scientific, and good school development and teacher self-interest. The performance assessment process, not only enables the combination of qualitative and quantitative analysis, but also fair and reasonably reflect the achievements of teachers, while this method is easy to use, wide application, and can be well applied in practice.

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