STUDI KASUS PROSES INERTING TANKI MUATAN PADA KAPAL MT. GAS WALIO DALAM RANGKA PERSIAPAN DOCKING

2021 ◽  
Vol 12 (2) ◽  
pp. 80
Author(s):  
Teguh Purnomo ◽  
Nazarudin Sinaga ◽  
Nafi Almuzani

In handling cargo, some types of ships have different ways. On gas tankers containing LPG, a special process is required in avoiding explosions in cargo tanks and avoiding the waste of cargo into the atmosphere. The process of handling the payload is the inerting porses on the payload tank. This process includes inert gas with oxygen levels of less than 8% to prevent the formation of fire triangles in the payload tank so as to avoid explosions. Inert gas is produced by an engine in the form of an Inert Gas Generator. Inert gas generators have several components, the process of which is interconnected with each other to produce inert gases. Inert gas generators require a good and correct maintenance and repair system considering the purpose of inserting inert gas into the payload tank is significant in terms of safety and security on board. Case study on board MT. Walio gas observes the activities of the inerting process that is disrupted by the waste of inert gas into the atmosphere and has a high dew point value so that inert gas does not enter the tank load. From the results of the case study intended that the components on the gas generator inert do not function properly, some analysis is done by observing the continuity of the process and written data so that it is expected that the case study has the benefit in theory and practice in handling the continuity of the inerting process.

1995 ◽  
Vol 23 (2) ◽  
pp. 187-190
Author(s):  
D. Gorman

The models used to describe the kinetics of inert gases during underwater diving are inadequate. Medical practitioners and scientists interested in such diving have attempted to quantitatively describe the behaviour of nitrogen in compressed air diving since 1908, with little success. The problems encountered during this diving research are relevant to anaesthesia theory and practice.


2021 ◽  
Vol 89 ◽  
pp. 106582
Author(s):  
Charles Roche ◽  
Martin Brueckner ◽  
Nawasio Walim ◽  
Howard Sindana ◽  
Eugene John

Author(s):  
Yi Zhang ◽  
Yingjiao Chen

With the acceleration of China's industrialized cities, economic construction and social development have caused considerable damage to the natural environment. Having a good living environment has become an urgent need of the Chinese people, who have already met their basic material needs. This paper mainly adopts the method of combining theoretical analysis with case study. From the perspective of theory and practice, this paper studies the following contents: the present situation of teaching development and reflection on the environmental design specialty in China, the characteristics of open teaching mode, combined with the setting of environmental design specialty curriculum system and the teaching conditions of related specialties in Chinese universities. This study takes the open teaching mode of ordinary colleges and universities as the research object, and takes a university in China as an example to study the open teaching mode.


2021 ◽  
pp. 128085
Author(s):  
Krzysztof Danilecki ◽  
Jacek Eliasz ◽  
Piotr Smurawski ◽  
Wojciech Stanek ◽  
Andrzej Szlęk

2021 ◽  
Vol 2 (143) ◽  
pp. 46-53
Author(s):  
Andrey V. Negovora ◽  
◽  
Makhmut M. Razyapov ◽  
Arseniy A. Kozeyev

Hot gas generators are used as a source of thermal energy for pre-start preparation of motor vehicles in cold climatic conditions. Their wide application is due to the high thermal power and safety. (Research purpose) The research purpose is in determining the possibilities of using thermoelectric modules to reduce the energy consumption of the battery by hot gas generators. (Materials and methods) Authors used research methods based on the application of standard techniques, while the object of research was the power supply system of a thermal energy source. (Results and discussion) Authors conducted research on ways and methods to reduce the electric consumption of a hot gas generator by recuperating thermal energy into electrical energy using thermoelectric generator modules. The thermoelectric converters installed on the heat pipe of the hot gas generator, due to the high temperature difference, will allow to obtain a high value of the electromotive force. Modeling of the nozzle in the software package of the Ansys three-dimensional modeling system showed that part of the heat energy goes through the surface of the heat pipe. The article proposes the use of a nozzle with a thermoelectric converter installed on the outer surface of the cylinder instead of a heat pipe. The article presents the mathematical model of an improved hot gas generator nozzle. (Conclusions) The use of a thermoelectric converter for the utilization of thermal energy and the replacement of energy losses of the battery, which feeds the hot gas generator, will reduce the internal power losses of the battery and increase the technical readiness of automotive equipment. The introduction of a comprehensive heat treatment system, which is intelligently and functionally linked to a remote monitoring system, will significantly increase the service life of the units most exposed to temperature influences.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Constance Elizabeth Kampf ◽  
Charlotte J. Brandt ◽  
Christopher G. Kampf

PurposeThe purpose is to explore how the process of action research (AR) can support building legitimacy and organizational learning in innovation project management and portfolio practices in merger contexts.Design/methodology/approachMeta-reflection on method issues in Action Research through an action research case study with an innovation group during an organizational change process. This case demonstrates an example of an action research cycle focused on building practitioner legitimacy rather than problem-solving.FindingsKey findings include (1) demonstrating how AR can be used for building legitimacy through visualizing the innovation process, and embedding those visuals in top management practices of the organization; and (2) demonstrating how AR can work as an organizational learning tool in merger contexts.Research limitations/implicationsThis study focuses on an action research cooperation during a two-and-a-half-year period. Thus, findings offer the depth of a medium term case study. The processes of building legitimacy represent this particular case, and can be investigated in other organizational contexts to see the extent to which these issues can be generalized.Practical implicationsFor researchers, this paper offers an additional type of AR cycle to consider in their research design which can be seen as demonstrating a form of interplay between practitioner action and organizational level legitimacy. For practitioners, this paper demonstrates a connection between legitimacy and organizational learning in innovation contexts. The discussion of how visuals were co-created and used for building legitimacy for an innovation process that differs from the standard stage gate model demonstrates how engaging in AR research can contribute to developing visuals as resources for building legitimacy and organizational learning based on connections between theory and practice.Originality/valueThis case rethinks AR practice for innovation project management contexts to include legitimacy and organizational learning. This focus on legitimacy building from organizational learning and knowledge conversion contributes to our understanding of the soft side of innovation project management. Legitimacy is demonstrated to be a key concern for innovation project management practices.


2014 ◽  
Vol 36 (1) ◽  
pp. 79-98 ◽  
Author(s):  
Jean Goodwin

Abstract Far from being of interest only to argumentation theorists, conceptions of speech acts play an important role in practitioners’ self-reflection on their own activities. After a brief review of work by Houtlosser, Jackson and Kauffeld on the ways that speech acts provide normative frameworks for argumentative interactions, this essay examines an ongoing debate among scientists in natural resource fields as to the appropriateness of the speech act of advocating in policy settings. Scientists’ reflections on advocacy align well with current scholarship, and the scholarship in turn can provide a deeper understanding of how to manage the communication challenges scientists face.


2000 ◽  
Vol 70 (3) ◽  
pp. 370-405 ◽  
Author(s):  
Zachary Dean Sconiers ◽  
Jerry Lee Rosiek

In this article, middle school science teacher Zachary Sconiers and university researcher Jerry Rosiek introduce the sonata-form case study, a narrative structure designed to document teachers' understandings of how subject matter and sociocultural influences intersect in the classroom. Written in collaboration with the Fresno Science Education Equity Teacher Research Project, this case study is told from the perspective of Jerome Jameson, a fictional chemistry teacher, whose story is based on Sconiers's actual teaching experiences. Also integrated into the narrative are Sconiers's in-depth reflections on the connections between his commitment to science education and his commitment to promoting educational equity. The sonata-form case study is followed by an afterword, written by Rosiek and Sconiers, that describes this unique methodology for teacher inquiry in full detail. The writing process for the case study was extensive and iterative: the two authors worked closely over the course of a year to develop the narrative, with Rosiek taking the lead on revising and editing. With this case study, Sconiers and Rosiek highlight the critical need for a new form of educational research, one that "builds bridges between the discourses of educational excellence and educational equity, as well as between theory and practice."


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