Design, construction, and energy of sustainable solar dryers in Jipijapa Canton

Abstract

Solar energy is one of the sources of renewable energy and more dispersed in the territory, this can be implemented for different energy uses for being a clean energy and that can be sustainable over time, the canton Jipijapa presents an annual radiation of 4.8 kWh/m2 day. In Cerro Grande community located in this area is located 529 meters above sea level, its inhabitants are engaged in agriculture, specifically the revival of the production of quality coffee for its taste and aroma. The drying treatment was not adequate, so their prices have dropped in the national and international market, with the aim of achieving a drying quality of this product and from knowing that the bamboo cane (Angustifolia Kunt) was a resource with good energy properties, two dryers were designed that take advantage of direct and indirect solar energy, to compare which was the most suitable for drying the coffee bean in a cleaner and simpler way. The results obtained in its design, construction and evolution determined that these types of drier can be implemented in communities that have the conditions of natural renewable resources and needs to improve the drying conditions of different agricultural products, thereby supporting the energetic and social sustainability of the populations that live in rural areas and that today are the base of the sustenance of agricultural products such as coffee, cocoa, and others.

Work accident risk analysis with FMEA (failure mode and effect analysis) method on steel frame bridge project

“…In this study, the research design used is descriptive qualitative, namely a research method that utilizes qualitative data and is described descriptively. In this study, in order to obtain the required data, the authors used data collected through primary and secondary data sources (Melchior & Zanini, 2019;Brody et al, 1990;Rodriguez et al, 2018). The primary data source used in this research is the method of distributing questionnaires.…”

Experimental method to determine the isosteres of adsorbent/adsorption pairs of adsorption cooling systems

“…For the design of the adsorption cooling systems, it is necessary to have the constant concentration diagram called isosteres that are expressed in a natural logarithm graph of the pressure (ln P) versus the inverse negative of the temperature (-1 / T) with the isosteres of the adsorbent / adsorbate pair, as shown in figure 1, being able to determine the pressure, temperature and concentration levels and trace the Adsorption Cooling Cycle (CEA), to define the constructive and operational characteristics of the installation that is want so that each pair presents different values of the preferred parameters. For this reason, in this work a method is established using equipment, instruments, and resources available in conventional laboratories where the CEA diagram can be drawn up, for different selected pairs and in this way to be able to compare and select the most suitable pairs for different applications (Rodriguez, A. C. Z., Gamez, M. R., & Faure, L. G., 2018).…”

Activity Patterns of Stenocercus iridescens in an Ecuadorian Coastal Agroecosystem: Is Temperature Important?

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