scholarly journals Research on the Economic Benefit Evaluation of Combined Heat and Power (CHP) Technical Renovation Projects Based on the Improved Factor Analysis and Incremental Method in China

2019 ◽  
Vol 11 (19) ◽  
pp. 5162 ◽  
Author(s):  
Yang ◽  
Li ◽  
Niu ◽  
Sun
Keyword(s):  
Factor Analysis ◽  
Economic Benefit ◽  
Evaluation Method ◽  
Thermal Power ◽  
Combined Heat And Power ◽  
Economic Benefits ◽  
Improve Energy Efficiency ◽  
Incremental Method ◽  
Benefit Evaluation ◽  
The Difference

With the increasingly prominent problems of resources and environment, thermal power enterprises in China are facing more severe challenges. To improve energy efficiency, a great number of thermal power enterprises implement the technical renovation of equipment. However, current methods cannot meet the needs of scientific and effective evaluations. In this context, the internal rate of return (IRR) is used as the main index to evaluate the economic benefits of the technical renovation of combined heat and power (CHP) plants. In order to improve the accuracy of the economic benefit evaluation results, the incremental cash flow is calculated through the incremental method, which is based on the existence and non-existence method, and the improved factor analysis method is utilized to eliminate the influence of price factors from markets that have no direct and definite relationship with the technical renovation. Then, the evaluation method is validated by taking a CHP technical renovation project in B city of China as an example. By comparing with other methods, the results show that the IRRs calculated by different methods are quite different, and the difference between the maximum and the minimum can reach 69.95%. The result of the method proposed in this paper is more reasonable and reliable and can effectively evaluate the economic benefits of CHP technical renovation projects.

scholarly journals Standard economic benefit evaluation of innovation-oriented enterprises——A case study of S enterprise

2021 ◽  
Vol 275 ◽  
pp. 03073
Author(s):  
Jingjuan Zhang ◽  
Xinliang Zhang ◽  
Fan Yu
Keyword(s):  
Economic Benefit ◽  
Economic Benefits ◽  
Benefit Evaluation ◽  
The Impact ◽  
Production And Operation

More and more innovation-oriented enterprises pay attention to standardization, but how much benefit standards can bring to the production and operation of enterprises is a matter of concern to managers. Therefore, it is of great significance to evaluate the impact of standards on the economic benefits of these enterprises. This paper takes S enterprise as an example to evaluate the impact of standards on its economic benefits.

Economic benefit evaluation method for the micro-grid renewable energy system operation

2018 ◽  
Vol 09 (04) ◽  
pp. 1850032 ◽  
Author(s):  
Jiani Wu
Keyword(s):  
Renewable Energy ◽  
Economic Benefit ◽  
Evaluation Method ◽  
Energy System ◽  
System Operation ◽  
Benefit Evaluation ◽  
Renewable Energy System ◽  
Network Operation ◽  
Micro Grid ◽  
Flexible Operation

The development of micro-grid renewable energy system in China has achieved rapid growth in recent years, and the micro-grid renewable energy system has been drawing more and more attention by its flexible operation. Due to the randomness, fluctuation, uncertainty of the wind and photovoltaic renewable generation, abundant flexibility is required to meet the needs of safe, reliable and independent operation of the micro-grid energy system. We need to connect large energy systems to accept outside assistance when the micro-grid renewable energy system is short of adjustment capability. Independent operation and network operation will affect the economic benefit of the micro-grid energy system, so it is practically meaningful to study on the economic benefit evaluation of the micro-grid renewable energy system. This paper proposes a micro-grid energy system operation simulation model about wind and photovoltaic generation, the uncertainty of which is tackled based on the scenario generation and extraction techniques. Based on the proposed indices, the economic benefit could be evaluated by simulating the micro-grid energy system operation. The proposed method is validated by a real micro-grid energy system.

Based on Grey Correlation Theory of the Eastern Region Industrial Economic Efficiency Evaluation and Analysis

2014 ◽  
Vol 623 ◽  
pp. 300-304
Author(s):  
Rong Ping Li ◽  
Wu Gao ◽  
Yuan Jie Li
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Economic Benefits ◽  
Evaluation Index System ◽  
Eastern Region ◽  
Comprehensive Evaluation Method ◽  
Benefit Evaluation ◽  
Secondary Index ◽  
Set Up ◽  
Industrial Economic

Set up an industrial economic benefit evaluation index system, including three level indexes, 8 secondary index, using the grey comprehensive evaluation method of industrial economic benefits in east China empirically measure and analysis. By analysis of the eastern provinces of the comprehensive ranking, according to the result of evaluation and comparison, we found out the eastern region economic level is uneven. Then, put forward the proposal to the development of eastern industrial economy.

Multi-Objective Evaluation Method of Thermal Power Enterprise Cost Effective Research

2013 ◽  
Vol 734-737 ◽  
pp. 1693-1696 ◽  
Author(s):  
Ze Hong Li ◽  
Meng Zhu Chen
Keyword(s):  
Evaluation Method ◽  
Thermal Power ◽  
Cost Benefit ◽  
Cost Effective ◽  
Objective Evaluation ◽  
Economic Benefits ◽  
Environmental Benefits ◽  
Multi Objective ◽  
Power Enterprise ◽  
Electre Method

This paper starts from the characteristics of the cost benefit of the thermal power enterprises, Respectively from economic benefits, environmental benefits, social benefits three aspects to establish index system and to evaluate its cost efficiency, by comparing various kinds of multi-objective evaluation method, select the AHP method to determine weights, and select sort with Electre method.

Difference in taste of Japanese sugars

2015 ◽  
pp. 624-627
Author(s):  
Kiyoaki Miyasaka ◽  
Mizuki Mutsuura ◽  
Kohei Miyazaki ◽  
Masahiro Okuno ◽  
Masami Mizu ◽  
...  
Keyword(s):  
Sensory Evaluation ◽  
Evaluation Method ◽  
New Products ◽  
Processed Foods ◽  
White Crystal ◽  
Sensing System ◽  
Light Brown Crystal ◽  
Brown Crystal ◽  
Home Cooking ◽  
The Difference

Japanese traditional cuisine “Washoku” was registered as one of the intangible cultural heritages in December 2013. “Washoku” contains and requires large amount of sugar, therefore, sugar is an important seasoning in taste. Japanese have been using many kinds of sugar such as Granulated sugar, White soft sugar, Brown soft sugar, White crystal sugar and Light brown crystal sugar according to application, for both home cooking and processed foods. Mitsui Sugar is focusing on the difference in taste of sugars to develop new attractive sugar products. With a sensory evaluation method, trained panelists could recognize the difference between these sugars though it is quite difficult to explain. Therefore one attempte624-627d to detect the taste difference in these sugars by using a taste sensing system. The system comes with a human taste model membrane and can analyze the density and balance of several tastes such as sweetness, bitterness, umami** and saltiness. The accuracy of the sensing system was evaluated by comparing the results against the sensory evaluation method by trained panelists. The sensing system was able to detect the difference in taste of Japanese sugars, and the results from the sensing system seemed to match with the ones from the sensory evaluation method. The results were plotted on a taste map. This map will be helpful not only in showing the difference between the sugars, but also in explaining the characteristics of the new products.

scholarly journals Research on benefit evaluation method of pumped storage power station

2021 ◽  
Vol 692 (2) ◽  
pp. 022015
Author(s):  
Mingjie Xie ◽  
Chuanzheng Gong ◽  
Tongfa Chen ◽  
Ligang Pan ◽  
Qingran Wang ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Power Station ◽  
Benefit Evaluation ◽  
Pumped Storage

scholarly journals Solving the Real Power Limitations in the Dynamic Economic Dispatch of Large-Scale Thermal Power Units under the Effects of Valve-Point Loading and Ramp-Rate Limitations

2021 ◽  
Vol 13 (3) ◽  
pp. 1274
Author(s):  
Loau Al-Bahrani ◽  
Mehdi Seyedmahmoudian ◽  
Ben Horan ◽  
Alex Stojcevski
Keyword(s):  
Large Scale ◽  
Thermal Power ◽  
Optimization Technique ◽  
Economic Dispatch ◽  
Pso Algorithm ◽  
Search Space ◽  
Economic Benefits ◽  
Optimization Techniques ◽  
Ramp Rate ◽  
Dynamic Economic Dispatch

Few non-traditional optimization techniques are applied to the dynamic economic dispatch (DED) of large-scale thermal power units (TPUs), e.g., 1000 TPUs, that consider the effects of valve-point loading with ramp-rate limitations. This is a complicated multiple mode problem. In this investigation, a novel optimization technique, namely, a multi-gradient particle swarm optimization (MG-PSO) algorithm with two stages for exploring and exploiting the search space area, is employed as an optimization tool. The M particles (explorers) in the first stage are used to explore new neighborhoods, whereas the M particles (exploiters) in the second stage are used to exploit the best neighborhood. The M particles’ negative gradient variation in both stages causes the equilibrium between the global and local search space capabilities. This algorithm’s authentication is demonstrated on five medium-scale to very large-scale power systems. The MG-PSO algorithm effectively reduces the difficulty of handling the large-scale DED problem, and simulation results confirm this algorithm’s suitability for such a complicated multi-objective problem at varying fitness performance measures and consistency. This algorithm is also applied to estimate the required generation in 24 h to meet load demand changes. This investigation provides useful technical references for economic dispatch operators to update their power system programs in order to achieve economic benefits.

scholarly journals Sustainability of Regional Agroecological Economic System Based on Emergy Theory: A Case Study of Anhui Province, China

2021 ◽  
Vol 13 (15) ◽  
pp. 8317
Author(s):  
Xue Wu ◽  
Yaliu Yang ◽  
Conghu Liu ◽  
Guowei Xu ◽  
Yuxia Guo ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Economic System ◽  
Agricultural Development ◽  
Evaluation Method ◽  
Measurement Model ◽  
Economic Benefits ◽  
Anhui Province ◽  
Human Beings ◽  
Emergy Theory ◽  
Operation Status

The agroecological economic system is the basic system on which human beings depend for survival. In order to better evaluate the operation status of a regional agroecological economic system and deepen the cognition of the input and output of the regional agroecological economic system from the angle of emergy, the evaluation method of sustainable development of the regional agroecological economic system with comprehensive consideration of resources, economy, and environment was proposed by constructing a unified dimensional measurement model. This paper analyzed and evaluated the data of the agroecological economic system in Anhui Province from 2010 to 2019. The results showed that the agroecological economic system in Anhui Province bore less environmental pressure and gradually decreased, and had a good system efficiency and economic benefits. The average emergy sustainability index (ESI) was 3.12, indicating that the agroecological economic system in Anhui Province had certain vitality of sustainable development. Based on this, the paper puts forward some suggestions on sustainable and high-quality agricultural development in Anhui Province, which provides theoretical and methodical support for sustainable development of a regional agricultural economy.

scholarly journals Validation of the German version of the Family Reported Outcome Measure (FROM-16) to assess the impact of disease on the partner or family member

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Susanne A. Elsner ◽  
Sam S. Salek ◽  
Andrew Y. Finlay ◽  
Anna Hagemeier ◽  
Catherine J. Bottomley ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Family Member ◽  
Internal Consistency ◽  
Outcome Measure ◽  
Test Validity ◽  
Family Members ◽  
German Version ◽  
The Family ◽  
The Difference ◽  
The Impact

Abstract Background The Family Reported Outcome Measure (FROM-16) assesses the impact of a patient’s chronic illness on the quality of life (QoL) of the patient’s partner or family members. The aim of the study was to translate, explore the structure of and validate the FROM-16. Methods The questionnaire was translated from English into German (forward, backward, four independent translators). Six interviews with family members were conducted to confirm the questionnaire for linguistic, conceptual, semantic and experiential equivalence and its practicability. The final German translation was tested for internal consistency, reproducibility and test validity. Criterion validity was tested by correlating the scores of the FROM-16 and the Global Health Scale (GHS). Principal component analysis, factor analysis, and confirmatory factor analysis was used to assess the questionnaire’s structure and its domains. Reliability and reproducibility were tested computing the intraclass correlation coefficient (ICC) using one sample t-test for testing the hypothesis that the difference between the scores was not different from zero. Results Overall, 83 family members (61% female, median age: 61 years) completed the questionnaire at two different times (mean interval: 22 days). Internal consistency was good for the FROM-16 scores (Cronbach’s α for total score = 0.86). In those with stable GHS, the ICC for the total score was 0.87 and the difference was not different from zero (p = 0.262) indicating reproducible results. A bi-factor model with a general factor including all items, and two sub-factors comprising the items from the original 2-factor construct had the best fit. Conclusions The German FROM-16 has good reliability, test validity and practicability. It can be considered as an appropriate and generic tool to measure QoL of a patient’s partner or family member. Due to the presence of several cross-loadings we do not recommend the reporting of the scores of the two domains proposed for the original version of FROM-16 when using the German version. Thus, in reporting the results emphasis should be put on the total score. Trial registration: Retrospectively registered: DRKS00021070.

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