Experimental investigation of an indirect solar dryer integrated with phase change material for drying valeriana jatamansi (medicinal herb)

Bhardwaj, Akshay; Chauhan, Ranchan; Kumar, Raj; Sethi, Muneesh; Rana, Adit

doi:10.1016/j.csite.2017.07.009

Cited by 105 publications

(42 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experiment was conducted to dry valeriana jatamansi thus the moisture was dried from 89% to 9%, the valepotriates obtained is 3.47% in solar pump drying system and 3.31% in share drying process. These systems obtain this efficiency using phase change material [7]. But in my present work the system efficiency 1.63% at 1.25 m/s flow rate and 1.98% during 0.75 m/s flow rate.…”

Section: Resultsmentioning

confidence: 53%

“…The blower connected with 0.035 m diameter pipe to flow air from collector to drying chamber. During dehydration using thermal storage process valeriana jatamansi medicine plant dries within 8 days with efficiency is 61.01% and under the shared drying process it took 14 day to dry plant with efficiency of shaded are 43.20% and 55.30% [7]. The experiment is conducted in novel indirect solar dryer using phase change material which consists of double pass v-corrugated plate as heat absorber.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Drying of mint leaves in forced convection solar dryer

Suresh¹,

Palanisamy

Kandasamy³

2019

THERM SCI

View full text Add to dashboard Cite

In this present work, performance study on drying mint leaves under the metrological conditions. Intensity of radiation falls on the absorber plate which transfers heat to forced air-flow inside the galvanized iron tube. Drying experiment carried out with 1 kg of mint leaves taken for drying process under the different mass-flow rate of 0.75 m/s and 1.25 m/s in serpentine flow of air. Performance of the collector and drying efficiency were 30.33% and 1.63% in first day at 0.75 m/s mass-flow rate and in the second day collector, the drying efficiency were 29.41% and 1.89% at the mass-flow rate of 1.25 m/s. The mass-flow rate of air decreased with increasing collector and drying efficiency.

show abstract

Section: Resultsmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Drying of mint leaves in forced convection solar dryer

Suresh¹,

Palanisamy

Kandasamy³

2019

THERM SCI

View full text Add to dashboard Cite

show abstract

“…In the last decades, several studies have been conducted (Ekechukwu & Norton, 1999;Murthy, 2009;El-Sebaii & Shalaby, 2012;El Hage et al, 2018;Lamidi et al, 2019;Anannob et al 2020). Most of them aim to increase the efficiency of solar dryers and even allow their nocturnal use (Queiroz et al, 2011;El Khadraoui et al, 2017), focusing on modeling (Prakash et al, 2016;Dhanushkodi et al, 2017;Anannob et al 2020), in the simulation (Hernandez et al, 2016;Sonthikun et al, 2016;Basso, 2017), and the experiment (Pangavhane et al, 2002;Mohanraj & Chandrase kar, 2008;Amer et al, 2010;Okoroigwe et al, 2013;Sonthikun et al, 2016;Bhardwaj et al, 2017;Shamekhi-Amiri et al, 2018) of different types of solar driers and sustainable drying techniques.…”

Section: Introductionmentioning

confidence: 99%

“…2020 drying time. Regarding thermal energy storage systems, water reservoirs (Queiroz et al, 2011), water reservoirs with electrical resistors and heat exchangers (Amer et al, 2010), sand (Mohanraj & Chandrasekar, 2008), stone bed (Shamekhi-Amiri et al, 2018), granite bed (Nemś et al, 2018), and materials with phase change -PCM (Kant et al, 2016), such as paraffin (Bhardwaj et al, 2017;El Khadraoui et al, 2017), can be used.…”

Section: Introductionmentioning

confidence: 99%

Hybrid System Simulation to Supply Heated Air to a Solar Food Dryer

Rodrigues

Basso

2020

Eng. Agríc.

View full text Add to dashboard Cite

The intermittence of solar radiation, due to continuous rainy or cloudy days, is a limitation of simple and small solar dryers. These conditions often make them impossible to use. By including storage systems (thermal accumulation) and/or auxiliary energy sources, drying processes or dehydration can be conducted continuously, even during periods of low insolation. Therefore, the present work simulates and evaluates the thermal and energetic behavior of a hybrid system for heating the air that is directed to the dehydration chamber of a solar food dryer. The software selected for the simulation was TRNSYS. The simulated hybrid system consists of a flat plate solar collector and an arrangement of electrical resistors that guarantee the entry of air, at a constant temperature, into the dehydration chamber. The target temperature selected is 70 o C, and the absence of food products in the chamber is assumed. An arrangement with four electric resistors totaling 1900 W, with three different powers of 1000 W, 500 W, and 200 W proved adequate to guarantee the entrance of air at a constant temperature when considering the climatic conditions of a city in the South of Brazil.

show abstract

“…The experiment was carried out for five days and the final moisture content of the product was decreased to 9% which was 89% initially. The drying time required was less than shade drying when compared [11]. V.V.Pakhare et al performed experiment on solar dryer using PCM material as paraffin wax for drying red chilli.…”

Section: B Indirect Solar Dryer With Phase Change Materialsmentioning

confidence: 99%

Indirect Solar Dryer: A Review

Dube¹

2018

IJRASET

View full text Add to dashboard Cite

Various agricultural products such as Fruits, Vegetables, Grains, and medicinal Herbs etc. requires drying to make them available for long period of time. Usually the methods being used for preservation of these products requires fossil fuel and open sun drying which has its own disadvantages. In developing countries fossil fuel availability still remains a big issue therefore solar drying can be a viable alternate solution for fossil fuels. Also the solar drying technique is not only dependent on solar energy for its functioning, rather its performance can be enhanced by incorporating various systems and techniques. In this paper various types of indirect solar drying techniques have been reviewed and emphasis is given to the dryers integrated with latent heat storage unit. Design and Analysis of Indirect solar dryer used for miscellaneous applications such as water heating, space heating and other industrial purposes have been presented in this paper.

show abstract

Experimental investigation of an indirect solar dryer integrated with phase change material for drying valeriana jatamansi (medicinal herb)

Cited by 105 publications

References 46 publications

Drying of mint leaves in forced convection solar dryer

Drying of mint leaves in forced convection solar dryer

Hybrid System Simulation to Supply Heated Air to a Solar Food Dryer

Indirect Solar Dryer: A Review

Contact Info

Product

Resources

About