Identification of barriers and drivers to implementation of solar drying technologies

Goel, Varun; Bhattacharyya, Suvanjan; Kumar, Rajneesh; Pathak, Sudhir Kumar; Tyagi, V.V.; Saini, R.P.

doi:10.1007/s10973-022-11631-x

Cited by 10 publications

(4 citation statements)

References 93 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Humans have been harnessing solar energy for thousands of years to grow crops, stay warm, and dry foods and clothes. Today, solar energy is used to heat and cool buildings [2], dry [3], cook [4], and produce electricity [5]. Therefore, the use of mirrors to concentrate solar energy is necessary to increase the collection intensity and enable an efficient use of the available resources.…”

Section: Introductionmentioning

confidence: 99%

Design and Optical Performance Evaluation of the Three-Dimensional Solar Concentrators with Multiple Compound Parabolic Profiles and Elliptical and Rectangular Receiver Shapes

Mboup,

Akisawa,

Pujol-Nadal

et al. 2024

Energies

View full text Add to dashboard Cite

The compound parabolic concentrator (CPC) is a core technology in the field of solar concentration. Nevertheless, it only has one degree of freedom in the choice of its half-acceptance angle. In this study, extending the idea of the three-dimensional CPC, a design method for new kinds of concentrators having a CPC shape at each profile with various acceptance angles in all directions is proposed. The feature of this method is that the receiver can take any shape. Here, elliptical and rectangular receivers are assumed, and the shape and concentration performance of the concentrators with multiple CPC profiles and an elliptical receiver (MultiPro-ECPCs) and the concentrators with multiple CPC profiles and a rectangular receiver (MultiPro-RCPCs) are derived. The new designs are compared to the conventional CPC and a mirrorless flat receiver through ray-tracing simulations in terms of energy distribution on the receiver, optical efficiency, and optical concentration ratio based on axial and solar angles. The results show that in terms of optical efficiency, the MultiPro-RCPCs cover a wider range of incident angles after the 3DCPC. In terms of the optical concentration ratio, the MultiPro-ECPC with a longitudinal half-acceptance angle of 15° has the highest peak value of 19.5, followed by the MultiPro-RCPC. This study enlightens that with the concentration system settings adapted to the acceptance range of the proposed concentrators, a higher concentration can be achieved with the MultiPro-ECPC and MultiPro-RCPC compared to the conventional CPC.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and Optical Performance Evaluation of the Three-Dimensional Solar Concentrators with Multiple Compound Parabolic Profiles and Elliptical and Rectangular Receiver Shapes

Mboup,

Akisawa,

Pujol-Nadal

et al. 2024

Energies

View full text Add to dashboard Cite

show abstract

“…Nonrenewable energy sources still meet much of this energy requirement and are the primary reason for carbon emissions. For instance, India generates about 80% of its energy from exhaustible energy sources 1,2 and is migrating towards deploying renewable energy sources as a possible solution to reduce carbon emissions. Solar power, recognized as the most environmentally friendly and promising energy option among various renewable sources, has garnered significant interest in this context.…”

Section: Introductionmentioning

confidence: 99%

“…India ranks fifth in the globally installed solar power plants, with an overall capacity of about 36 GW. 1 1.1 | Need for performance enhancement of solar air heater Solar energy has a broad spectrum of industrial and household applications. 3 Open sun drying was used in ancient times as one of the solar applications to preserve food.…”

Section: Introductionmentioning

confidence: 99%

Thermohydraulic performance augmentation of triangular duct solar air heater using semi‐conical vortex generators: Numerical and experimental study

Pramod,

Madhwesh,

Arunachala

et al. 2024

Heat Trans

View full text Add to dashboard Cite

Thermohydraulic performance augmentation using turbulence promotors is a commonly adopted technique in solar air heater (SAH) applications. This article presents the thermohydraulic performance augmentation of triangular duct SAH using semi‐conical vortex generators (SCVG) using computational fluid dynamics and experimental methodology for various flow Reynolds numbers ranging from 6000 to 21,000. An in‐depth parametric analysis is undertaken to establish the influence of flow attack angle, relative longitudinal pitch, relative transverse pitch and cone diameter of SCVG on the thermohydraulic performance as indicated by the thermohydraulic performance parameter (THPP). The results reveal that the SCVG generates longitudinal vortices and introduces flow impingement zones which significantly affects the flow and heat transfer characteristics of air heaters. Correlations for Nusselt number and friction factor are established, which predicts the performance outcomes with an average error of 6.74% and 4.46%, respectively. The optimal THPP is determined to be 1.74 using artificial neural network model and Bonobo Optimization algorithm. The SCVG produces THPP values well above unity for the entire flow Reynolds number range of 6000–21,000.

show abstract

“…Hybrid solar dryers have emerged as a sustainable solution for drying agricultural products and have received considerable attention in recent years. These systems harness solar energy along with other additional heat sources, such as biomass, electrical energy or waste heat, to create a more efficient and reliable method for the drying process (Goel, 2023).…”

Section: Introductionmentioning

confidence: 99%

Optimizing solar dryer design: A multicriteria decision making approach for hybrid systems

Hernández-Domínguez

2023

JID

View full text Add to dashboard Cite

Solar dryers are a sustainable and efficient alternative for preserving agricultural products, offering numerous benefits for both the environment and the agro-industrial sector's economy. The objective is to develop a decisionmaking methodology based on environmental, economic, and social criteria, allowing the acquisition of data for the design of solar dryers using alternative energy sources to achieve the hybridization of one or more energy sources. The Analytic Hierarchy Process (AHP) methodology is based on breaking down a complex problem into a series of simple and manageable problems. This methodology evaluated alternatives based on different criteria and factors to consider. The AHP methodology was divided into three stages: the first was to define the problem to be solved, the second was to determine the criteria, and the third was to analyze the possible alternatives. This research provided information for the design of a solar coffee dryer in San Antonio el Porvenir, Chiapas. The solar dryer's design was based on criteria proposed by the producers, such as ease of repair, the product not being in contact with the ground, and ensuring safe operation due to the presence of children and women near the drying process.

show abstract

Identification of barriers and drivers to implementation of solar drying technologies

Cited by 10 publications

References 93 publications

Design and Optical Performance Evaluation of the Three-Dimensional Solar Concentrators with Multiple Compound Parabolic Profiles and Elliptical and Rectangular Receiver Shapes

Design and Optical Performance Evaluation of the Three-Dimensional Solar Concentrators with Multiple Compound Parabolic Profiles and Elliptical and Rectangular Receiver Shapes

Thermohydraulic performance augmentation of triangular duct solar air heater using semi‐conical vortex generators: Numerical and experimental study

Optimizing solar dryer design: A multicriteria decision making approach for hybrid systems

Contact Info

Product

Resources

About