Advancing Waste to Energy Technology Design and Performance of EPI Fluidized Bed RDF-Fired Power Plants Worldwide

Author(s):  
Michael L. Murphy

Energy Products of Idaho has designed and installed numerous waste to energy systems in the United States and Europe, with others currently under development. Among the latest are a number of installations in operation and/or construction in Italy. The systems design have undergone some changes over time to stay ahead of changing regulations performance requirements.

Author(s):  
H. Shah ◽  
R. Latorre ◽  
G. Raspopin ◽  
J. Sparrow

The United States Department of Energy, through the Pacific Northwest National Laboratory (PNNL), provides management and technical support for the International Nuclear Safety Program (INSP) to improve the safety level of VVER-1000 nuclear power plants in Central and Eastern Europe.


Author(s):  
Natália Dadario ◽  
Mario Mollo Neto ◽  
Cristiane Hengler Corrêa Bernardo ◽  
Roberto Bernardo ◽  
Lu´ís Roberto Almeida Gabriel Filho ◽  
...  

Waste-to-Energy Technologies (WtE) have been widely used in European countries, in Japan, in some US cities, and have been growing in China. Currently, in Brazil, there are no WtE power plants in operation, but there are studies on the feasibility of this technology. The Systematic Bibliographic Review (SBR) presented in this mini-review article appears as a result of a process of prospecting documents in the following databases: Science Direct, Web of Science and Scopus. The purpose was to map the articles of the last five years on the applications of WtE technologies in Brazil. From the selection of articles relevant to the research, these documents were registered and cataloged, as well as their qualitative and quantitative analyses. During the systematization process, it was possible to raise hypotheses about which professionals have been working the most on this topic, the journals in which these researches are being published and the keywords most addressed for these case studies. In addition, it was possible to identify the characteristics of the publications related to the theme, the central axes of analysis of the studies and the primary techniques studied for the Brazilian reality. It was also considered part of the results of the present work, the systematization of the main definitions of WtE, the presentation of the main WtE technologies operations, and the exposition of the benefits and impacts of each of these technologies.


1992 ◽  
Vol 114 (2) ◽  
pp. 218-222
Author(s):  
C. W. Ennis ◽  
S. W. Gyeszly

The objective of this research project was to improve problem formulation in engineering systems design. A problem formulation method was developed which uses five characteristic aspects (time, dimensions, value, physical matter, and people) to assist in identifying boundary and performance criteria, and technical performance requirements as a means of expressing them. When tested in controlled task, guided response experiments, the method was shown to improve the quality of problem statements.


Author(s):  
Yougen Kong ◽  
Heidi Davidson

Solid waste incinerators emit air pollutants such as SO2, HCl, and mercury. Dry sorbent injection of sodium sorbents has emerged as an important SO2, HCl, and mercury mitigation technology due to its (a) low capital cost; (b) small installation foot print; (c) ease of operation; and (d) flexibility to fuel changes. In a dry sorbent injection system, trona or sodium bicarbonate is injected directly into hot flue gas. After injection, the sorbent is calcined into porous sodium carbonate that reacts with acid gases (SO2, HCl and SO3). This technology is able to achieve high removal rates for HCl (>99%) and SO2 (>90%), and has been implemented at many waste incinerators in Europe and coal-fired power plants in the United States. With the promulgation of MACT rules, this technology will be a low-cost and easy-to-use option for waste-to-energy boiler owners.


Author(s):  
Alberto Boretti ◽  
Stefania Castelletto

AbstractThe prediction of the techno-economic performances of future concentrated solar power (CSP) solar tower (ST) with thermal energy storage (TES) plants is challenging. Nevertheless, this information is fundamental to energy policymakers. This work aims to fill the knowledge gap regarding estimations of costs, amount, and quality of electricity produced by these plants over their lifetime. Every estimate should be based on real-world data of actual costs incurred to build and maintain constructed plants, and their actual electricity production, sampled with high frequency, to be reliable. Here we discuss as the available information is insufficient. There has been so far very limited transparency on the real cost and performance of CSP plants built and operated worldwide, and in the very few cases where data has been made public, for example, Crescent Dunes in the United States, costs have been much higher than expected, while annual average capacity factors have been much less. Important statistical parameters such as the standard deviation of the capacity factor with high-frequency sampling have never been provided. We conclude as the techno-economic performances of these plants are therefore unpredictable with accuracy until a significant number of plants will be built and operated, their costs and operating parameters will be shared, and their delivered techno-economic performances will be compared to the modeled values, finally permitting validation of the techno-economic analysis tools.


2018 ◽  
Vol 62 (2) ◽  
pp. 97-107 ◽  
Author(s):  
Nina Keith

Abstract. The positive effects of goal setting on motivation and performance are among the most established findings of industrial–organizational psychology. Accordingly, goal setting is a common management technique. Lately, however, potential negative effects of goal-setting, for example, on unethical behavior, are increasingly being discussed. This research replicates and extends a laboratory experiment conducted in the United States. In one of three goal conditions (do-your-best goals, consistently high goals, increasingly high goals), 101 participants worked on a search task in five rounds. Half of them (transparency yes/no) were informed at the outset about goal development. We did not find the expected effects on unethical behavior but medium-to-large effects on subjective variables: Perceived fairness of goals and goal commitment were least favorable in the increasing-goal condition, particularly in later goal rounds. Results indicate that when designing goal-setting interventions, organizations may consider potential undesirable long-term effects.


2000 ◽  
Vol 16 (2) ◽  
pp. 107-114 ◽  
Author(s):  
Louis M. Hsu ◽  
Judy Hayman ◽  
Judith Koch ◽  
Debbie Mandell

Summary: In the United States' normative population for the WAIS-R, differences (Ds) between persons' verbal and performance IQs (VIQs and PIQs) tend to increase with an increase in full scale IQs (FSIQs). This suggests that norm-referenced interpretations of Ds should take FSIQs into account. Two new graphs are presented to facilitate this type of interpretation. One of these graphs estimates the mean of absolute values of D (called typical D) at each FSIQ level of the US normative population. The other graph estimates the absolute value of D that is exceeded only 5% of the time (called abnormal D) at each FSIQ level of this population. A graph for the identification of conventional “statistically significant Ds” (also called “reliable Ds”) is also presented. A reliable D is defined in the context of classical true score theory as an absolute D that is unlikely (p < .05) to be exceeded by a person whose true VIQ and PIQ are equal. As conventionally defined reliable Ds do not depend on the FSIQ. The graphs of typical and abnormal Ds are based on quadratic models of the relation of sizes of Ds to FSIQs. These models are generalizations of models described in Hsu (1996) . The new graphical method of identifying Abnormal Ds is compared to the conventional Payne-Jones method of identifying these Ds. Implications of the three juxtaposed graphs for the interpretation of VIQ-PIQ differences are discussed.


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