Energy analysis of hybrid solar tunnel dryer with PV system and solar collector for drying mint (MenthaViridis)

Eltawil, Mohamed A.; Azam, Mostafa M.; Alghannam, Abdulrahman O.

doi:10.1016/j.jclepro.2018.01.229

Cited by 127 publications

(37 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Salah satu mesin pengering yang menerapkan hal ini adalah pengering bertenaga hybrid surya dan biomasa yang memanfaatkan sumber energi surya dan biomasa (Putra et al 2014;Sari et al 2014;Yahya et al 2017). Energi surya dapat dimanfaatkan baik melalui penggunaan sel surya maupun kolektor datar (Eltawil et al 2018) atau penggunaan efek rumah kaca (ERK).…”

Section: Pendahuluanunclassified

Keragaan Pengering Hybrid Energi Surya dan Biomasa untuk Pengeringan Sawut Ubi Kayu Terfermentasi

Abadi

Ahmadi

Nurhasanah

2018

bulpa

View full text Add to dashboard Cite

Penggunaan pengering bertenaga hybrid memiliki keunggulan dapat memanfaatkan tenaga matahari dan biomasa sehingga dapat digunakan pada kondisi cuaca kurang baik, diantaranya untuk pengeringan sawut ubi kayu terfermentasi. Tujuan penelitian ini mengevaluasi keragaan Pengering Hybrid Energi Surya dan Biomasa arang kayu (PHESB) untuk mengeringkan sawut ubi kayu terfermentasi. Keragaan PHESB dievaluasi menggunakan model linier dan exponensial untuk menentukan laju pengeringan (% bb/jam), kapasitas pengeringan (kg/jam), dan kelayakan finansial penerapannya. Mutu hasil pengeringan dianalisis dengan uji homogenitas koefisien regresi (laju pengeringan) dari model pengeringan yang mempunyai tingkat koefisien derterminasi (R2) terbesar dari pengamatan kadar air sawut dalam arah tegak (atas, tengah, bawah) dan mendatar (depan, tengah, belakang). Hasil penelitian menunjukkan bahwa pada kadar air awal sawut ubi kayu 71,45% bb dan rata-rata suhu pengeringan 40,51 + 3,61 oC, penurunan kadar air sawut ubi kayu mengikuti model linier dengan R2 dari 0,969 sampai 0,984 dengan laju pengeringan homogen baik dalam arah tegak maupun mendatar. Karakteristik PHESB dapat dinyatakan dengan model linier y =-5,081x +78,30 (R2=0,978). Dengan model ini diperoleh kapasitas pengeringan 20,86 kg/jam untuk mencapai kadar air sawut ubi kayu 14% bb. Dengan harga alat pengering Rp. 40 juta/unit dan ongkos jasa pengeringan sawut ubi kayu basah Rp 600/kg diperoleh nisbah keuntungan dengan biaya pengeringan (B/C)<1,0. Secara teknis PHESB layak digunakan, tetapi secara finansial masih belum layak diterapkan dalam bentuk penjualan jasa pengering sawut ubi kayu.

show abstract

Section: Pendahuluanunclassified

Keragaan Pengering Hybrid Energi Surya dan Biomasa untuk Pengeringan Sawut Ubi Kayu Terfermentasi

Abadi

Ahmadi

Nurhasanah

2018

bulpa

View full text Add to dashboard Cite

show abstract

“…Natural drying is of great interest as it is a promising technique to use solar energy, which is a renewable and clean source of energy (Eltawil et al, 2018;García-Valladares et al, 2020). However, sun-drying fermented cassava starch is performed without any protection against physical contamination, which compromises its quality.…”

Section: Introductionmentioning

confidence: 99%

“…Developing a controlled process, including a low-cost solar dryer that is easy to assemble and manufacture, can prevent undesirable physical contamination (Almeida et al, 2016;Sharma et al, 2009) and improve the drying efficiency (Eltawil et al, 2018). Thus, this study proposes a hygienic process to produce high-quality, sun-dried traditional sour cassava starch that is free of physical contaminants and has high expansion levels when baked.…”

Section: Introductionmentioning

confidence: 99%

Traditional sour cassava starch obtained with alterations in the solar drying stage

et al. 2021

View full text Add to dashboard Cite

After natural fermentation and solar drying, sour cassava starch acquires expansion property. Traditionally, solar drying occurs without protection, and consequently physical contamination can arise. Thus, the aim of this study was to produce sour cassava starch using a low-cost solar dryer to prevent contamination, whilst retaining the expansion property. The samples were characterized in relation to chemical composition, microscopy and physical contaminants, as well as expansion, thermal, pasting, structural and technological properties. In addition, biscuits were prepared and compared with commercial samples. The solar dryer provided faster drying and lower moisture levels than the control. The specific volumes of the sun-dried products were similar to the control, with minimized contamination. The granules of the starches showed slight erosion on their surface, which was probably due to amylolytic enzymes. X-ray diffraction showed a typical A-type pattern. DSC analysis resulted in higher gelatinization temperatures and enthalpy changes for the sour cassava starch. The pasting properties showed a reduction in the viscosity peak at neutral pH. Although the cassava starch biscuits made with sour cassava starch dried in the solar dryer presented lower expansion levels in relation to the other biscuits produced with commercial sour cassava starch, they had desirable sensory characteristics.

show abstract

“…They measured solar dryer efficiency and solar efficiency of the investigated solar dryer system. Eltawil et al [8] experimentally tested the performance of a solar dryer system with air solar collector and PV system for drying mint. They reported the overall efficiency of the solar dryer system equal to 16.32%.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of a Solar Dryer System Using Small Parabolic Dish and Alumina/Oil Nanofluid: Simulation and Experimental Study

et al. 2019

View full text Add to dashboard Cite

In this study, a small dish concentrator with a cylindrical cavity receiver was experimentally investigated as the heat source of a dryer. The system was examined for operation with pure thermal oil and Al2O3/oil nanofluid as the working fluids in the solar system. Moreover, the design, the development, and the evaluation of the dried mint plant are presented in this work. Also, the solar dryer system was simulated by the SolidWorks and ANSYS CFX software. On the other side, the color histogram of the wet and dried mint samples based on the RGB method was considered. The results revealed that the different temperatures of the solar working fluids at the inlet and outlet of the cavity receiver showed similar trend data compared to the variation of the solar radiation during the experimental test. Moreover, it is found that the cavity heat gain and thermal efficiency of the solar system was improved by using the nanofluid as the solar working fluid. Furthermore, the required time for mint drying had decreased by increasing the drying temperature and increasing air speed. The highest drying time was measured equal to 320 min for the condition of the air speed equal to 0.5 m/s and the drying temperature of 30 °C. A good agreement was observed between the calculated numerical results and measured experimental data. Finally, based on the color histogram of the wet and dried mint samples, it was concluded that intensity amount of the red color of the mint increased with the drying process compared to intensity amount of the red color of the wet mint sample.

show abstract

Energy analysis of hybrid solar tunnel dryer with PV system and solar collector for drying mint (MenthaViridis)

Cited by 127 publications

References 33 publications

Keragaan Pengering Hybrid Energi Surya dan Biomasa untuk Pengeringan Sawut Ubi Kayu Terfermentasi

Keragaan Pengering Hybrid Energi Surya dan Biomasa untuk Pengeringan Sawut Ubi Kayu Terfermentasi

Traditional sour cassava starch obtained with alterations in the solar drying stage

Performance Assessment of a Solar Dryer System Using Small Parabolic Dish and Alumina/Oil Nanofluid: Simulation and Experimental Study

Contact Info

Product

Resources

About