This page has only limited features, please log in for full access.

Unclaimed
Ricardo Beltran-Chacon
Centro de Investigación en Materiales Avanzados (CIMAV)

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Book chapter
Published: 11 July 2021 in Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications
Reads 0
Downloads 0

The properties of nanostructured materials are used in various applications for the use of renewable energies. This chapter briefly describes the operation of some devices, their main problems, and some examples of how these problems are overcome by using the properties of nanomaterials. Some of the devices described in this chapter include artificial photosynthesis, batteries, biofuels, carbon capture dioxide, energy storage, fuel cells, hydrogen energy, phase change materials, solar cells, and thermoelectric generator.

ACS Style

Ricardo Beltran-Chacon. Roadmap of Nanomaterials in Renewable Energy. Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications 2021, 669 -677.

AMA Style

Ricardo Beltran-Chacon. Roadmap of Nanomaterials in Renewable Energy. Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications. 2021; ():669-677.

Chicago/Turabian Style

Ricardo Beltran-Chacon. 2021. "Roadmap of Nanomaterials in Renewable Energy." Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications , no. : 669-677.

Reference work
Published: 18 March 2021 in Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications
Reads 0
Downloads 0

The properties of nanostructured materials are used in various applications for the use of renewable energies. This chapter briefly describes the operation of some devices, their main problems, and some examples of how these problems are overcome by using the properties of nanomaterials. Some of the devices described in this chapter include artificial photosynthesis, batteries, biofuels, carbon capture dioxide, energy storage, fuel cells, hydrogen energy, phase change materials, solar cells, and thermoelectric generator.

ACS Style

Ricardo Beltran-Chacon. Roadmap of Nanomaterials in Renewable Energy. Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications 2021, 1 -9.

AMA Style

Ricardo Beltran-Chacon. Roadmap of Nanomaterials in Renewable Energy. Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications. 2021; ():1-9.

Chicago/Turabian Style

Ricardo Beltran-Chacon. 2021. "Roadmap of Nanomaterials in Renewable Energy." Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications , no. : 1-9.

Journal article
Published: 03 February 2020 in Applied Thermal Engineering
Reads 0
Downloads 0

This paper presents a study to determine the influence of design variable interactions on the performance of a Stirling engine, as well as a new methodology to identify and quantify such influence. An Alpha-type 2 kW Stirling engine was assessed using a second order model where the engine, heater, regenerator and cooler variables were simultaneously analyzed in pairs. The study includes 240 interactions corresponding to the 16 selected design variables. It was observed that the piston stroke and cylinder diameter variables have more significant interactions with the rest of the parameters due to their strong influence over mass flow. The piston crown length does not show significant interactions; however, it reduces individual thermal losses in the expansion zone. The cycle achieves its maximum net power at angles less than 90° due to pressure, heat losses, and the ratio between mass flow rates and swept volume. Finally, this work presents recommendations for the analyzed interactions. The global interactions scheme provides a qualitative and quantitative identification of the variables that affect the system, synthesized into a hierarchy of variables that indicates a critical path for their exploration for system design and optimization purposes.

ACS Style

Saúl Islas; Ricardo Beltran-Chacon; Nicolas Velazquez-Limon; Daniel Leal-Chávez; R. López-Zavala; Jesús Armando Aguilar. A numerical study of the influence of design variable interactions on the performance of a Stirling engine System. Applied Thermal Engineering 2020, 170, 115039 .

AMA Style

Saúl Islas, Ricardo Beltran-Chacon, Nicolas Velazquez-Limon, Daniel Leal-Chávez, R. López-Zavala, Jesús Armando Aguilar. A numerical study of the influence of design variable interactions on the performance of a Stirling engine System. Applied Thermal Engineering. 2020; 170 ():115039.

Chicago/Turabian Style

Saúl Islas; Ricardo Beltran-Chacon; Nicolas Velazquez-Limon; Daniel Leal-Chávez; R. López-Zavala; Jesús Armando Aguilar. 2020. "A numerical study of the influence of design variable interactions on the performance of a Stirling engine System." Applied Thermal Engineering 170, no. : 115039.

Journal article
Published: 19 September 2019 in Entropy
Reads 0
Downloads 0

This paper proposes the configuration of an Organic Rankine Cycle (ORC) coupled to a solar domestic hot water system (SDHWS) with the purpose of analyzing the cogeneration capacity of the system. A simulation of the SDHWS was conducted at different temperatures, observing its performance to determine the amounts of useable heat generated by the solar collector; thus, from an energy balance point of view, the amount of heat that may be used by the ORC could be determined. The working fluid that would be suitable for the temperatures and pressures in the system was selected. The best fluid for the given conditions of superheated vapor at 120 °C and 604 kPa and a condensation temperature of 60 °C and 115 kPa was acetone. The main parameters for the expander thermodynamic design that may be used by the ORC were obtained, with the possibility of generating 443 kWh of annual electric energy with 6.65% global efficiency of solar to electric power, or an overall efficiency of the cogeneration system of 56.35% with a solar collector of 2.84 m2.

ACS Style

Daniel Leal-Chavez; Ricardo Beltran-Chacon; Paola Cardenas-Terrazas; Saúl Islas; Nicolas Velazquez-Limon. Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System. Entropy 2019, 21, 911 .

AMA Style

Daniel Leal-Chavez, Ricardo Beltran-Chacon, Paola Cardenas-Terrazas, Saúl Islas, Nicolas Velazquez-Limon. Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System. Entropy. 2019; 21 (9):911.

Chicago/Turabian Style

Daniel Leal-Chavez; Ricardo Beltran-Chacon; Paola Cardenas-Terrazas; Saúl Islas; Nicolas Velazquez-Limon. 2019. "Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System." Entropy 21, no. 9: 911.

Journal article
Published: 18 August 2019 in Applied Sciences
Reads 0
Downloads 0

In this work, we present an absorption cooling system with 35 kW capacity driven by solar thermal energy, installed in the school of Puertecitos, Mexico, an off-grid community with a high level of social marginalization. The cooling system provides thermal comfort to the school’s classrooms through four 8.75-kW cooling coils, while a 110-m2 field of evacuated tube solar collectors delivers the thermal energy needed to activate the cooling machine. The characteristics of the equipment installed in the school were used for simulation and operative analysis of the system under the influence of typical factors of an isolated coastal community, such as the influence of climate, thermal load, and water consumption in the cooling tower, among others. The aim of this simulation study was to determine the best operating conditions prior to system start-up, to establish the requirements for external heating and cooling services, and to quantify the freshwater requirements for the proper functioning of the system. The results show that, with the simulated strategies implemented, with a maximum load operation, the system can maintain thermal comfort in the classrooms for five days of classes. This is feasible as long as weekends are dedicated to raising the water temperature in the thermal storage tank. As the total capacity of the system is distributed in the four cooling coils, it is possible to control the cooling demand in order to extend the operation periods. Utilizing 75% or less of the cooling capacity, the system can operate continuously, taking advantage of stored energy. The cooling tower requires about 750 kg of water per day, which becomes critical given the scarcity of this resource in the community.

ACS Style

Jesús Armando Aguilar-Jiménez; Nicolás Velázquez; Ricardo López-Zavala; Luis A. González-Uribe; Ricardo Beltrán; Luis Hernández-Callejo. Simulation of a Solar-Assisted Air-Conditioning System Applied to a Remote School. Applied Sciences 2019, 9, 3398 .

AMA Style

Jesús Armando Aguilar-Jiménez, Nicolás Velázquez, Ricardo López-Zavala, Luis A. González-Uribe, Ricardo Beltrán, Luis Hernández-Callejo. Simulation of a Solar-Assisted Air-Conditioning System Applied to a Remote School. Applied Sciences. 2019; 9 (16):3398.

Chicago/Turabian Style

Jesús Armando Aguilar-Jiménez; Nicolás Velázquez; Ricardo López-Zavala; Luis A. González-Uribe; Ricardo Beltrán; Luis Hernández-Callejo. 2019. "Simulation of a Solar-Assisted Air-Conditioning System Applied to a Remote School." Applied Sciences 9, no. 16: 3398.

Journal article
Published: 01 December 2015 in Energy
Reads 0
Downloads 0

In this work, a power generation system dish/Stirling with cavity receiver and an electrical induction generator was simulated. We propose a control system using a variable-dead-volume and analyze its influence on the mechanical performance. A system with a dead volume of 160 cm3 was designed to control the power and speed of the engine considering annual insolation, mechanical properties of the heater and the limits of frequency and voltage for the systems interconnected to the electricity network. The designed system achieves net efficient solar conversion to electric of 23.38% at an irradiance of 975 W/m2 and allows an annual increase of 18% of the useful electrical energy compared to a system without control.

ACS Style

Ricardo Beltrán-Chacon; Daniel Leal-Chavez; Daniel Sauceda; Manuel Pellegrini-Cervantes; Mónica Borunda. Design and analysis of a dead volume control for a solar Stirling engine with induction generator. Energy 2015, 93, 2593 -2603.

AMA Style

Ricardo Beltrán-Chacon, Daniel Leal-Chavez, Daniel Sauceda, Manuel Pellegrini-Cervantes, Mónica Borunda. Design and analysis of a dead volume control for a solar Stirling engine with induction generator. Energy. 2015; 93 ():2593-2603.

Chicago/Turabian Style

Ricardo Beltrán-Chacon; Daniel Leal-Chavez; Daniel Sauceda; Manuel Pellegrini-Cervantes; Mónica Borunda. 2015. "Design and analysis of a dead volume control for a solar Stirling engine with induction generator." Energy 93, no. : 2593-2603.

Article
Published: 01 October 2012 in Journal of Mechanical Science and Technology
Reads 0
Downloads 0

This paper presents a mathematical model that allows representing the optical behavior of a solar parabolic dish concentrator and the thermal performance of a cavity receiver. A procedure and a graphical method for the design of dish/cavity systems are proposed. A parametric study of the main geometric variables is performed and the influence of climate variables on the thermal behavior of the system coupled to a Stirling engine is analyzed. The model considers errors of solar collector, intercept factor, reflected and emitted radiation, conduction, and convection heat losses. For the validation of the model, the results obtained were compared with theoretical and experimental results reported in the literature. The calculation of the radiation losses, emitted and reflected from the receiver presented errors of up to 14%, and the average error for the rest of the thermal losses, interception factor and the absorber’s temperature, was less than 3%. These results show that the proposed model can be used with sufficient certainty to design and optimize solar dish collectors with cavity receivers.

ACS Style

Ricardo Beltran; Nicolas Velazquez-Limon; Alma Cota Espericueta; Daniel Sauceda; Guillermo Perez. Mathematical model for the study and design of a solar dish collector with cavity receiver for its application in Stirling engines. Journal of Mechanical Science and Technology 2012, 26, 3311 -3321.

AMA Style

Ricardo Beltran, Nicolas Velazquez-Limon, Alma Cota Espericueta, Daniel Sauceda, Guillermo Perez. Mathematical model for the study and design of a solar dish collector with cavity receiver for its application in Stirling engines. Journal of Mechanical Science and Technology. 2012; 26 (10):3311-3321.

Chicago/Turabian Style

Ricardo Beltran; Nicolas Velazquez-Limon; Alma Cota Espericueta; Daniel Sauceda; Guillermo Perez. 2012. "Mathematical model for the study and design of a solar dish collector with cavity receiver for its application in Stirling engines." Journal of Mechanical Science and Technology 26, no. 10: 3311-3321.

Journal article
Published: 01 June 2011 in Journal of Mechanical Science and Technology
Reads 0
Downloads 0

In this work, a solar parabolic trough collector (PTC) has been dimensioned and its technical feasibility has been evaluated in order to be used as ammonia direct vapor generator in an advanced absorption air-cooled Solar-GAX cycle of 10.6 kW cooling capacity. A detailed numerical simulation model that takes into account the geometry and the optical, thermal and fluid dynamic behavior of the PTC has been developed. The model has been solved in order to reach minimal thermal losses through the PTC, and maximum coefficient of performance (COP) of the Solar-GAX cycle. Under design conditions, the solar PTC efficiency, the COP of the Solar-GAX cycle and the global efficiency of the system were 0.62, 0.87 y and 0.54 respectively. The calculated efficiency is 25.5 % higher than that provided by a single effect water-lithium bromide cycle coupled in an indirect form with a solar PTC system.

ACS Style

Daniel Sauceda; Nicolas Velazquez-Limon; Octavio García-Valladares; Ricardo Beltran-Chacon. Numerical simulation and design of a parabolic trough solar collector used as a direct generator in a solar-GAX cooling cycle? Journal of Mechanical Science and Technology 2011, 25, 1399 -1408.

AMA Style

Daniel Sauceda, Nicolas Velazquez-Limon, Octavio García-Valladares, Ricardo Beltran-Chacon. Numerical simulation and design of a parabolic trough solar collector used as a direct generator in a solar-GAX cooling cycle? Journal of Mechanical Science and Technology. 2011; 25 (6):1399-1408.

Chicago/Turabian Style

Daniel Sauceda; Nicolas Velazquez-Limon; Octavio García-Valladares; Ricardo Beltran-Chacon. 2011. "Numerical simulation and design of a parabolic trough solar collector used as a direct generator in a solar-GAX cooling cycle?" Journal of Mechanical Science and Technology 25, no. 6: 1399-1408.

Journal article
Published: 31 March 2010 in Energy Conversion and Management
Reads 0
Downloads 0

In this work a methodological analysis to design and evaluate the technical feasibility of use a Linear Fresnel Reflector Concentrator (LFRC) as generator in an advanced absorption refrigeration system (Solar-GAX cycle) has been carried out. For this purpose, a detailed one-dimensional numerical simulation of the thermal and fluid-dynamic behavior of a LFRC that solves, in a segregated manner, four subroutines: (a) fluid flow inside the receptor tube, (b) heat transfer in the receptor tube wall, (c) heat transfer in cover tube wall, and (d) solar thermal analysis in the solar concentrator has been developed. The LFRC numerical model has been validated with experimental data obtained from the technical literature; after that, a parametric study for different configurations of design has been carried out in order to obtain the highest solar concentration with the lowest thermal losses, keeping in mind both specific weather conditions and construction restrictions. The numerical result obtained demonstrates that using a LFRC as a direct generator in a Solar-GAX cycle satisfy not only the quantity and quality of the energy demanded by the advanced cooling system, it also allows to obtain higher global efficiencies of the system due to it can be operated in conditions where the maximum performance of the Solar-GAX cycle is obtained without affecting in any significant way the solar collector efficiency.

ACS Style

Nicolas Velazquez-Limon; O. García-Valladares; D. Sauceda; Ricardo Beltran-Chacon. Numerical simulation of a Linear Fresnel Reflector Concentrator used as direct generator in a Solar-GAX cycle. Energy Conversion and Management 2010, 51, 434 -445.

AMA Style

Nicolas Velazquez-Limon, O. García-Valladares, D. Sauceda, Ricardo Beltran-Chacon. Numerical simulation of a Linear Fresnel Reflector Concentrator used as direct generator in a Solar-GAX cycle. Energy Conversion and Management. 2010; 51 (3):434-445.

Chicago/Turabian Style

Nicolas Velazquez-Limon; O. García-Valladares; D. Sauceda; Ricardo Beltran-Chacon. 2010. "Numerical simulation of a Linear Fresnel Reflector Concentrator used as direct generator in a Solar-GAX cycle." Energy Conversion and Management 51, no. 3: 434-445.