Sizing of Wind, Solar and Storage Facilities Associated to a Desalination Plant Using Stochastic Optimization

Author(s):  
Antonio Colmenar-Santos ◽  
Santiago Peñate-Vera ◽  
Enrique Rosales-Asensio
2021 ◽  
pp. 36-40
Author(s):  
D.A. Semenov

This article helps to understand what a forklift is, what it was and what it is at the moment. In the text below, a brief history of the appearance of the loader is well traced, the constructive component and its features are described. The main aspects of the development of a loader in the system of lifting and transporting machines and storage facilities are highlighted. The current trends in the development of forklifts are summarized, an analysis of the market of European and domestic consumers is provided and a conclusion about popular manufacturers is formulated. The information about modern design solutions for machines of this type was also not spared, the principles of operation were described, and also its own design-parametric model of a forklift was proposed, which is able to make work in warehouses more economical and profitable. In the conclusion, the main theses about the modernized machine are formulated, which can subsequently give an impetus to the development of automated control on domestically produced loaders. Keywords: forklift, modernization, improvement, lifting and transport equipment


2020 ◽  
Vol 56 (2) ◽  
pp. 76-90
Author(s):  
Marzena Półka ◽  
Dorota Bielesza ◽  
Anna Szajewska

Aim: The objective of the paper was to identify and analyse relevant requirements regarding the safety of storage and usage of pyrotechnic materials, intended for civil use. The review was based on binding applicable Polish and European legal acts. The results of the review pointed to the ambiguity of the provisions regulating the issues of safe usage and storage of pyrotechnical materials. Introduction: Some pyrotechnic articles, when triggered by a proper impulse, can lead to a violent reaction resulting in the release of a large amount of heat, and the creation of a blast wave. The effects of this reaction have a destructive impact on buildings situated nearby and pose a hazard to human life. Use and storage of pyrotechnic articles against the set rules is associated with the risk of fire or explosion, therefore a number of requirements have been introduced in this area. Methodology: In Poland there are many legal acts applicable to explosives. One of the most important one is the Act of 21 June 2002 on explosives designated for civil use, which presents pyrotechnic materials with respect to the safety of their usage and storage. Several key requirements have also been specified in agreements ratified in Poland and in other international acts, such as for example: the European Agreement concerning the International Carriage of Dangerous Goods by Road(ADR), and the Directive of the European Parliament and of the Council 2013/29/EU of 12 June 2013 on the harmonisation of laws of the Member States relating to the making available on the market of pyrotechnic articles. Results: It was established that there is a need of adopting a legal solution for storing pyrotechnical products for temporary sales in containers located near commercial facilities (and serving as back-up facilities). Although the regulations are not clear-cut, such a solution is used in practice, thus it would be advisable to determine by means of legal acts whether it is permissible and what requirements should be fulfilled, for example by a container, in which pyrotechnic articles are temporarily stored. Conclusions: The specification presented in the article allows to see the need to minimize the hazards associated with the marketing of pyrotechnical materials and justifies the necessity of adopting a particularly diligent classification and use of nomenclature for these products. In case of storing pyrotechnical materials, it is erroneous to adopt the determination of class “G” for two variable of net mass values of the explosive (when determining safe distances for explosive storage facilities, including among others class 1, sub-classes 1.3, 1.4). The same applies to the hexogen equivalent of an explosive load (when determining safe distances for explosive storage facilities including class 1, sub-classes 1.1, 1.5 and 4.1). Such provisions are misleading and may cause erroneous interpretations of regulations.


Author(s):  
Chris Underwood

For research projects, it is important to understand the relationship between the aims of the project and the resources available to complete the project. The HMS Swift project is a project that involves excavation, finds handling, conservation, and protection of the excavated areas. This article describes the preparation and procedure of excavation projects, the equipment used in excavation, technique, and safety considerations. A recovery operation depends on the size and number of the artifacts recovered. On completion of the excavation of a particular area or at the end of each field season, the exposed area is covered, but the method varies depending on whether the area has been finished or further excavation is planned. The complete archaeological collection is held in the museum's conservation and storage facilities. The local population plays an active role in the site's protection; therefore the archaeological site is not threatened by looting.


Author(s):  
Brett Carlsen ◽  
Denzel Fillmore ◽  
Roger L. McCormack ◽  
Robert Sindelar ◽  
Timothy Spieker ◽  
...  

This report summarizes some of the challenges encountered and solutions implemented to ensure safe storage and handling of damaged spent nuclear fuels (SNF). It includes a brief summary of some SNF storage environments and resulting SNF degradation, experience with handling and repackaging significantly degraded SNFs, and the associated lessons learned. This work provides useful insight and resolutions to many engineering challenges facing SNF handling and storage facilities. The context of this report is taken from a report produced at Idaho National Laboratory and further detailed information, such as equipment design and usage, can be found in the appendices to that report.


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