T’imani a Multifunctional Solar System to Provide Cooking and Water Heating Rural Energy Needs

Morales, José Ángel Rodríguez; González-Avilés, Mauricio; Campuzano, Hermelinda Servín; Masera, Omar

doi:10.3390/en13133429

Cited by 5 publications

(6 citation statements)

References 12 publications

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“…Interestingly, the consumption of natural gas related to water heating is the most significant driver of GHG emissions in Isidro Fabela, with 1356 kg CO 2 eq (50%) (2169 kg CO 2 eq [40%] in Mexico City). Therefore, this finding agrees with past GHG assessments in residential buildings [35,49,50] that found that solar water heaters offer the best GHG mitigation potential in Mexico City [18,40,41,50]. The cold mornings in Mexico City increase the demand for hot water, which complicates the ability of families to save natural gas for daily showers.…”

Section: Life-cycle Assessment and Ghg Emissionssupporting

confidence: 89%

Revealing the Contribution of Informal Settlements to Climate Change Mitigation in Latin America: A Case Study of Isidro Fabela, Mexico City

Reyes

2021

Sustainability

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Given the implications of energy use in housing units for global warming, life cycle assessment (LCA) has been used to examine greenhouse gas (GHG) emissions. Although informal settlements, currently known as colonias populares, or barrios, house most of the urban population in Latin America, there is a poor understanding of how people in these communities use energy and contribute to GHG emissions. This investigation provides a comprehensive analysis of resource consumption in Mexico City’s colonia popular, including self-help housing, household energy consumption, and transportation. As there is no spatially specific data on energy use, the author conducted field research in the informal community of Isidro Fabela, founded in the 1960s. Isidro Fabela is an illuminating community that helps understand the energy use of informal settlements at advanced stages of urban consolidation. A mixed-method research approach served to collect empirical data through observations, household surveys, and in-depth interviews. Research sheds light on the efficient and sustainable ways in which families use energy, materials, and resources during self-help construction, and through their daily lives, in their community. The community-based LCA assessment finds that the contribution of Isidro Fabela to GHG emissions is 50% of the average impact in Mexico City. Natural gas or liquefied petroleum gas (LPG) consumption for water heating is the most significant contributor to GHG emissions because families use inefficient heaters. Interestingly, by using public transportation and even walking, residents moderate the contribution of work commutes to GHG emissions. Therefore, climate change policy should enhance low-energy practices in informal settlements, by improving access to energy-efficient technologies and public transportation, to help families contribute further to GHG mitigation in Mexico City and elsewhere in Latin America.

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Section: Life-cycle Assessment and Ghg Emissionssupporting

confidence: 89%

Revealing the Contribution of Informal Settlements to Climate Change Mitigation in Latin America: A Case Study of Isidro Fabela, Mexico City

Reyes

2021

Sustainability

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“…The design of the solar oven was based on previous studies that were carried out for the implementation in Michoacán [18][19][20][21][22] that used a compound parabolic concentrator (CPC) of revolution and a solar oven [23] based on a CPC channel. The oven is a device that offers users safe operation because it uses anidolic, i.e., out-of-focus, optics to avoid flashes that can damage users' eyesight [24].…”

Section: Solar Ovenmentioning

confidence: 99%

“…In Michoacán, solar stoves have also been implemented in indigenous and rural communities [18,19]. The implementation projects that have been carried out in Michoacán are changing according to the needs of the users, without neglecting the scientific vanguard [20].…”

Section: Introductionmentioning

confidence: 99%

Preservation of Antioxidant Properties of Endemic Dark Corn Using Solar Energy for Nixtamalization

et al. 2021

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A comparative study of two corn nixtamalization processes is presented, one in the traditional way of the Michoacan region of Mexico, and the other using solar devices. The corn selected for the process was a nontransgenic endemic dark corn. For the nixtamalization process, a solar concentration oven was used; this process using the solar device is simple and affordable for communities. For characterization, the properties of the antioxidant content of dark corn were analyzed for both processes, and the highest concentration of antioxidants between the two varieties of corn was obtained. The antioxidant capacity in the two varieties of black corn was quantified and determined, and the anthocyanin pigments were extracted with methanol. The total anthocyanin content (CAT) was evaluated by the pH difference method, and the antioxidant capacity by the DPPH method. In the solar nixtamalization process, a higher content of CAT anthocyanins and antioxidant capacity were obtained. Therefore, the solar energy process was proposed as a sustainable energy option, and we concluded that black corn nixtamalized with a solar oven had high antioxidant levels and could be used as a nutritious food.

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“…López-Sosa, A. Ortíz-Carrión, D. Espinoza-Gómez, J. Zárate-Medina, 2021;López-Sosa et al, 2019Morales-Máximo et al, 2022;Morales et al, 2020;Sosa et al, 2014).…”

Section: Introductionunclassified

Use of design thinking in the proposal of a multi-compound solar dryer applied to processes of traditional P'urhépecha Medicine

Núñez-Montiel,

Cira-Ramos,

Corral-Huacuz

et al. 2024

Energy Exploration & Exploitation

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The development of small-scale solar thermal technologies is useful to address specific energy needs; however, there is a gap between the technology that is developed and the one that is accepted and achieves its use in a sustained long-term manner. In this sense, the development of a double-inclination solar dryer for the dehydration of medicinal plants used in traditional P'urhépecha medicine is presented. From a participatory and consensual perspective of technological co-creation with the user that allows promoting its long-term use, the solar dryer was generated from the Design Thinking methodology and the conventional technological development process. The stages of the proposed process considered the identification of the energy need, the design, sizing and simulation, the prototyping, and the characterization and implementation of the technology in a group of traditional doctors for the drying of local medicinal plants. The result is a solar dryer with thermal efficiency of 23% and exergy efficiency of 3%, which achieves the dehydration of medicinal plants in 1 day with 4.7 kWh of average solar irradiance, and removes more than 80% of the humidity from a maximum load of 5 kilograms. The temperature of the drying chamber exceeds 50°C, and the energy distribution is homogeneous, being a natural convection device, easy to build and with affordable materials. This technology has been implemented in the home of a traditional doctor and it is expected that it can be replicated to satisfy the demand for drying products in indigenous community families in Mexico.

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T’imani a Multifunctional Solar System to Provide Cooking and Water Heating Rural Energy Needs

Cited by 5 publications

References 12 publications

Revealing the Contribution of Informal Settlements to Climate Change Mitigation in Latin America: A Case Study of Isidro Fabela, Mexico City

Revealing the Contribution of Informal Settlements to Climate Change Mitigation in Latin America: A Case Study of Isidro Fabela, Mexico City

Preservation of Antioxidant Properties of Endemic Dark Corn Using Solar Energy for Nixtamalization

Use of design thinking in the proposal of a multi-compound solar dryer applied to processes of traditional P'urhépecha Medicine

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