Some natural-salt production methods in Okinawa and Application of a spray drying system and a dram dryer

2002 ◽  
Vol 2002 (0) ◽  
pp. 67-68
Author(s):  
Tsutomu Kinjo ◽  
Takehiro Nosoko ◽  
Takashi Nagata ◽  
Satoru Gima
Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5622
Author(s):  
Diana L. Tinoco-Caicedo ◽  
Alexis Lozano-Medina ◽  
Ana M. Blanco-Marigorta

Instant coffee is produced worldwide by spray drying coffee extract on an industrial scale. This production process is energy intensive, 70% of the operational costs are due to energy requirements. This study aims to identify the potential for energy and cost improvements by performing a conventional and advanced exergy and exergoeconomic analysis to an industrial-scale spray drying process for the production of instant coffee, using actual operational data. The study analyzed the steam generation unit, the air and coffee extract preheater, the drying section, and the final post treatment process. The performance parameters such as exergetic efficiency, exergoeconomic factor, and avoidable investment cost rate for each individual component were determined. The overall energy and exergy efficiencies of the spray drying system are 67.6% and 30.6%, respectively. The highest rate of exergy destruction is located in the boiler, which amounts to 543 kW. However, the advanced exergoeconomic analysis shows that the highest exergy destruction cost rates are located in the spray dryer and the air heat exchanger (106.9 $/h and 60.5 $/h, respectively), of which 47.7% and 3.8%, respectively, are avoidable. Accordingly, any process improvement should focus on the exergoeconomic optimization of the spray dryer.


1997 ◽  
Vol 15 (3-4) ◽  
pp. 1023-1043 ◽  
Author(s):  
Fernando Perez-Munor ◽  
Rolando A. Flores
Keyword(s):  

Author(s):  
Maria Do Carmo

RESUMO:Esse ensaio contextualiza a produção de sal marinho no Brasil e sua localização no período colonial, próximo aos povoados da costa nordestina para investigar a inserção das antigas salinas nas cidades. As salinas artesanais foram transformadas em áreas residenciais, mas dada as condições ambientais de algumas áreas, ainda, existe a oportunidade de integrá-las na condição de infraestrutura urbana verde resgatando, também, sua memória cultural. Assim, se faz uma evolução das áreas ocupadas por salinas e dos métodos de produção, quando se situa às condições mais propícias a produção do sal, bem como, seus conflitos com a proteção dos ecossistemas de manguezais das planícies flúvio- marítimas. Se discute a capacidade de regeneração desses ecossistemas em áreas de salinas desativadas e sua oportunidade de instalação de parques urbanos em cidades desprovidas de verde. O caso de estudo ocorre na área das antigas Salinas Diogo, que hoje é o Parque do rio Cocó na cidade de Fortaleza. Como resultado se destaca a integração das áreas de salinas à cidade com grande ganho de qualidade de vida urbana, mas que, por outro lado, as salinas não comparecem na imagem coletiva urbana o que remete a um estudo de proteção da memória da paisagemcultural.  RESUMEN:Este ensayo contextualiza la producción de sal marina en Brasil y su ubicación en el período colonial, cerca de las aldeas de la costa noreste para investigar la inserción de antiguas salinas en las ciudades. Las salinas artesanales se transformaron en áreas residenciales, pero dadas las condiciones ambientales de algunas áreas, todavía existe la oportunidad de integrarlas en la condición de infraestructura urbana verde, también rescatando su memoria cultural. Las áreas ocupadas por solución salina y los métodos de producción evolucionan cuando se crean las condiciones más favorables para la producción de sal, así como sus conflictos con la protección de los ecosistemas de manglar de las llanuras marítimas fluviales. Se discute la capacidad regenerativa de estos ecosistemas en áreas de salinas desactivadas y su oportunidad de instalar parques urbanos. El estudio de caso ocurre en el área del antiguo Salinas Diogo, que hoy es el Parque del Río Cocó. Como resultado, se destaca la integración de las áreas salinas en la ciudad, con una gran ganancia en la calidad de vida urbana, pero las soluciones salinas no aparecen en la imagen colectiva urbana, lo que lleva a un estudio de protección de la memoria del paisajecultural.ABSTRACT:This essay contextualizes the production of sea salt in Brazil and its location in the colonial period, close to the northeastern coast villages to investigate the insertion of old salt flats in cities. The artisanal salt extraction were transformed into residential areas, but given the environmental conditions of some areas, there is still the opportunity to integrate them in the city, also rescuing their cultural memory. Occupied areas and production methods are evolved when the conditions most favorable to salt production, as well as their conflicts with the protection of mangrove ecosystems of the river-maritime plains are made. The regenerative capacity of these ecosystems in areas of deactivated salt production and their opportunity to install urban parks in cities are discussed. The case study occurs in the area of the former Salinas Diogo, which today is the Cocó River Park. As a result, the integration of saline areas into the city stands out, with a great gain in urban quality of life, but, on the other hand, salt production do not appear in the urban collective image, which leads to a study of protection of the memory of the culturallandscape.


Author(s):  
Zunhao Zhang ◽  
Junxia Zhang ◽  
Wei Tian ◽  
Hui Zheng ◽  
Xinyang Cao ◽  
...  

2014 ◽  
Vol 39 (1) ◽  
pp. 7-53
Author(s):  
Andreas Janousch

This case study analyses religious and technological changes that occurred during the last seventy years of the Ming dynasty (1574-1644) around the Hedong Salt Lake, situated south of Yuncheng City in southern Shanxi province. Based on a close reading of inscriptions found on stone steles at the Temple of the God of the Salt Lake and of different kinds of gazetteers, the article documents the processes and analyses the factors that shaped the expanding pantheon of local salt-production-related deities during this period. I argue that these religious changes need to be understood in the context of a wider sociotechnical system around the Salt Lake, especially the emergence of new salt production methods that were introduced at this time under the increasingly affirmative leadership of local salt merchants, as well as the changing conditions of local labour management. The larger methodological point the article makes is about the necessity to take stone steles themselves in their spatial and material dimensions as evidence of historical processes: this will allow us to see that by means of these steles and their inscriptions the temple became an architectural discursive space that facilitated new forms of social participation and of administrative intervention, while offering simultaneously a nexus between the sphere of human intervention and the relevant ‘natural’ factors of the salt production at the Salt Lake. Accordingly, the article proposes novel ways to understand the role of religious institutions such as temples in their relation to ‘natural’ and ‘technological’ processes.


2010 ◽  
Vol 495 (4-6) ◽  
pp. 280-286 ◽  
Author(s):  
Vaneet Sharma ◽  
Kathryn M. Eberhardt ◽  
Renu Sharma ◽  
James B. Adams ◽  
Peter A. Crozier

Jurnal Segara ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 97
Author(s):  
Andi Kurniawan ◽  
Abdul Aziz Amin ◽  
Gatot Ardian ◽  
Mohamad Zaki Mahasin ◽  
Rachmad Dian Kuncoro

One of the main potentials of marine resources in Indonesia is salt. Salt production locations are located in various regions of Indonesia. Aceh Province is one of the leading salt-producing areas on the island of Sumatra. Salt production in Aceh faces various challenges, such as the production system and salt production locations' suitability. Therefore, to develop salt production in Aceh, analysis of the production system and suitability of salt production sites are fundamental. This study aims to analyze the production system and the suitability of salt production locations in North Aceh Regency and East Aceh Regency as salt production centers in Aceh Province. This research uses a combination of qualitative and quantitative methods (mixed method) with a descriptive approach. Production system analysis is carried out through direct observation and in-depth interviews with the stakeholders (government and salt farmers). Analysis of the salt location's suitability level was carried out using the Salt Suitability Index (SSI) method. This study shows that the production system in North Aceh and East Aceh districts uses three production methods consisting of boiling seawater, solar evaporation, and a combination of boiling and solar evaporation. The main obstacle to salt production in Aceh is the weather, such as high rainfall and fluctuations throughout the year. Analysis of the suitability of the location of salt production shows the value of the SSI at the salt ponds site in the North Aceh and the East Aceh Regencies is 80% which indicates that the locations are sufficiently appropriate as a salt production site. The results of this study show that the application of the Continuously Dynamic Mixing (CDM) method in Greenhouse Salt Tunnel (GST) technology may be used to improve the quality and quantity of salt production in Aceh.


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