Suralaya Multi-effect Distillation Plant: Case Study Indonesia

2021 ◽  
pp. 1-10
Author(s):  
Roshan Ramesh Chandwankar ◽  
Kotla Rajshekhar
Keyword(s):  
Distillation Plant

An economic D-RTO for thermal solar plant: analysis and simulations based on a feedback linearization control case

2020 ◽  
Author(s):  
Igor M. L. Pataro ◽  
Marcus V. Americano da Costa ◽  
Lídia Roca ◽  
José L. Guzmán Sanches ◽  
Manuel Berenguel
Keyword(s):  
Feedback Linearization ◽  
Thermal Power ◽  
Electricity Consumption ◽  
Economic Dynamic ◽  
Solar Plant ◽  
Feedback Linearization Control ◽  
Process Disturbances ◽  
Real Time Optimization ◽  
Distillation Plant

This work proposes an economic dynamic real-time optimization (D-RTO) strategy to control a solar collector eld in order to maximize the amount of thermal power energy delivered to multi-eect seawater distillation plant. A validated model of the compound parabolic concentrator collector eld of the AQUASOL plant, available at the Plataforma Solar deAlmera (Spain), is used as case study. The optimization algorithm is based on receding horizon optimization problem, in which an economic function takes into account the energy produced by the solar plant and the electricity consumption costs by the water pump. The D-RTO strategy is compared to a feedback linearization controlling in dierent temperature setpoints, intending to analyze economic benets and viability of the proposed algorithm. Simulation results showthe D-RTO algorithm is capable of handling process disturbances and operating in economic benet conditions, bringing good perspectives for implementation in real applications.

Biogas production from vinasse as an alternative to develop biofuels (Case study: Mag-Alcoholes, S.A. distillery)

2014 ◽  
pp. 617-619 ◽  
Author(s):  
Jorge Byron Meneses González
Keyword(s):  
Ph Value ◽  
Biogas Production ◽  
Anaerobic Treatment ◽  
Circulation System ◽  
Sugarcane Molasses ◽  
Treated Effluent ◽  
Pressure Steam ◽  
Ethanol Plant ◽  
Distillation Plant

This paper describes the project for a biogas production unit located at the Mag-Alcoholes S.A. distillery (300,000 L/d) in Guatemala. The ethanol plant is based on sugarcane molasses feedstock. The anaerobic treatment digestion plant 4200 m3/day in four biodigesters includes both floating membranes to capture methane and are circulation system for sludge to maximise biogas production. The solids are properly separated in the process and the biogas is captured by the reactor roof membranes. Despite the negative pressure, the biogas is sent to the boilers to produce high pressure steam to congestion and low pressure steam for the distillation plant. The result of this process is a balanced treated effluent, with a neutral pH value and rich in minerals and nutrients for use in fertigation.

The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO
Keyword(s):  
Latin America ◽  
El Salvador ◽  
Early Years ◽  
Left Wing ◽  
Internal Dynamics ◽  
Internal Coherence ◽  
The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

Culture and the plasticity of perception

2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann
Keyword(s):  
Cultural Context ◽  
Sensory Experience ◽  
Cultural Learning ◽  
The World

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.

Dual systems for all: Higher-order, role-based relational reasoning as a uniquely derived feature of human cognition

2019 ◽  
Vol 42 ◽  
Author(s):  
Daniel J. Povinelli ◽  
Gabrielle C. Glorioso ◽  
Shannon L. Kuznar ◽  
Mateja Pavlic
Keyword(s):  
Temporal Reasoning ◽  
Higher Order ◽  
Important Case ◽  
Human Cognition ◽  
Relational Reasoning ◽  
Dual Systems ◽  
First Order ◽  
Reasoning System ◽  
Role Based

Abstract Hoerl and McCormack demonstrate that although animals possess a sophisticated temporal updating system, there is no evidence that they also possess a temporal reasoning system. This important case study is directly related to the broader claim that although animals are manifestly capable of first-order (perceptually-based) relational reasoning, they lack the capacity for higher-order, role-based relational reasoning. We argue this distinction applies to all domains of cognition.

Sociocultural memory development research drives new directions in gadgetry science

2019 ◽  
Vol 42 ◽  
Author(s):  
Penny Van Bergen ◽  
John Sutton
Keyword(s):  
Episodic Memory ◽  
Autobiographical Memory ◽  
Developmental Psychology ◽  
Cross Cultural ◽  
Memory Development ◽  
Development Research ◽  
Cultural Research ◽  
New Directions ◽  
Cross Cultural Research

Abstract Sociocultural developmental psychology can drive new directions in gadgetry science. We use autobiographical memory, a compound capacity incorporating episodic memory, as a case study. Autobiographical memory emerges late in development, supported by interactions with parents. Intervention research highlights the causal influence of these interactions, whereas cross-cultural research demonstrates culturally determined diversity. Different patterns of inheritance are discussed.

Construction of plastic contact deformation maps on ceramics: a case study on aluminum nitride

1996 ◽  
Vol 54 ◽  
pp. 636-637
Author(s):  
D. L. Callahan
Keyword(s):  
Plastic Deformation ◽  
Aluminum Nitride ◽  
Mechanical Response ◽  
Three Dimensional ◽  
Bright Field Image ◽  
Perfectly Plastic ◽  
Contrast Analysis ◽  
Deformation Patterns

Modern polishing, precision machining and microindentation techniques allow the processing and mechanical characterization of ceramics at nanometric scales and within entirely plastic deformation regimes. The mechanical response of most ceramics to such highly constrained contact is not predictable from macroscopic properties and the microstructural deformation patterns have proven difficult to characterize by the application of any individual technique. In this study, TEM techniques of contrast analysis and CBED are combined with stereographic analysis to construct a three-dimensional microstructure deformation map of the surface of a perfectly plastic microindentation on macroscopically brittle aluminum nitride.The bright field image in Figure 1 shows a lg Vickers microindentation contained within a single AlN grain far from any boundaries. High densities of dislocations are evident, particularly near facet edges but are not individually resolvable. The prominent bend contours also indicate the severity of plastic deformation. Figure 2 is a selected area diffraction pattern covering the entire indentation area.

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