Design and Construction of the Flat Plate Solar Air Heater For Spray Dryer

Jongpluempiti, Jarinee; Pannucharoenwong, Nattadon; Benjapiyaporn, Chatchai; Vengsungnle, Ponthep

doi:10.1016/j.egypro.2017.10.082

Cited by 7 publications

(2 citation statements)

References 1 publication

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“…A spray dryer is a machine that produces products in the form of fine grains through a drying process with the spraying method [2]. The dry spray method is already widely used in the food industry, especially in powdered food because the drying process is short and easy to package [12]. The resulting product material becomes more durable because it can improve the energy balance in the product material to minimize disturbances that will damage the product material [13].…”

Section: Theoretical Reviewmentioning

confidence: 99%

The Simulation of Fluid Flow with a Vortex Generator 35° toward the Y-axis to Heat Transfer in Spray Dryer

Setyadi

Anggrainy

Yoga

et al. 2022

J. Phys.: Conf. Ser.

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The Spray Dryer is a spray drying machine to change liquid into dry powder. The spray drying machine can be defined by the drying process in a cylinder, utilizing air heated in the heater and flowing through a blower connected to a vortex generator with an angle of 35° to the Y-axis. The vortex generator causes the formation of turbulence of airflow. Heat transfer occurs between the hot air flow and the milk droplets so that the liquid milk becomes a dry powder. This research aims to see the vortex phenomenon, namely the turbulence intensity, airflow velocity, heat flux, and temperature distribution in a cylinder, compared with an experiment that used four conditions of temperature inlet. There is 80°C, 90°C, 100°C and 110°C. The liquid used in this research is dairy cow’s milk mixed with water and maltodextrin, which has a density value of 1056 kg/m3 and a specific heat value of 3930 J/kg K. The machine’s cylinder has a diameter of 0.5 m with a wall thickness of 1 x 10−3 m and a height of 2 m with a capacity of 1.27 l/hour with a drying time of 80 minutes. The speed airflow of this machine into the cylinder has 16 m/s with a cross-sectional diameter of 9,5 x 10−2 m and a thickness of 1 x 10−3 m which has a debit of 0.11 m3/s. In addition, the injector used has a diameter of 2 x 10−4 m and a speed of 13,54 m/s with a flow rate of 4,5 x 10−4 kg/s with a spray angle of 45° u. Besides that, the analysis results show that the airflow turbulence area is in the form of a vortex so that the drying process of heat transfer that occurs between the product material and the airflow becomes faster.

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Section: Theoretical Reviewmentioning

confidence: 99%

The Simulation of Fluid Flow with a Vortex Generator 35° toward the Y-axis to Heat Transfer in Spray Dryer

Setyadi

Anggrainy

Yoga

et al. 2022

J. Phys.: Conf. Ser.

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“…Dibandingkan dengan alat pemanas udara lainnya dengan sumber panas gas, ataupun listrik , pemanas udara surya memiliki kelebihan dalam hal kontruksi, penggunaan material dan biaya operasional yang minimal. Sebagai dasar kontruksi pemanas udara surya adalah jenis kolektor plat datar [5]. Dalam pengembangnya banyak modifikasi pada kolektor plat datar untuk meningkatkan efisiensinya.…”

Section: Pendahuluanunclassified

Uji Prestasi Air Heater pada Pelat Bergelombang Melintang dengan Variasi Kecepatan Udara Masuk

Yunianto

Surya

Oktavian

2019

Rot.

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Energi surya merupakan salah satu energi terbarukan non-konvensional yang tersedia secara bebas sebagai sumber energi yang bebas polusi. Cara yang paling sederhana dan paling efisien untuk memanfaatkan energi surya adalah mengubahnya menjadi energi termal untuk aplikasi pemanasan dengan menggunakan kolektor surya. Penelitian ini membahas tentang perbedaan efisiensi antara kolektor pelat datar dan pelat dengan plat gelombang melintang. Dari penelitian ini didapatkan panas yang berguna, panas yang masuk, panas yang hilang, dan efisiensi kolektor. Energi input pada kolektor adalah panas yang berasal dari lampu halogen (sebagai simulator matahari) yang diarahkan ke kolektor. Pengujian dari penelitian ini bertujuan untuk mendapatkan data-data temperatur dari 3 buah sensor yang berada pada ruangan, pelat penyerap panas dan tempat keluar kolektor. Kemudian mengetahui efisiensi kolektor pemanas udara dari 7 variasi kecepatan udara yaitu 2,1 m/s, 2,3 m/s, 2,4 m/s, 3 m/s, 3,5 m/s, 4 m/s, 4,5 m/s. Dan yang terakhir adalah membandingkan nilai efisiensi kolektor pelat datar dan pelat gelombang melintang. Hasil pengujian menunjukkan bahwa efisiensi kolektor pelat gelombang melintang lebih tinggi dibanding pelat datar dan semakin meningkat laju kecepatan udara maka efisiensi juga akan meningkat.

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Recent developments and cost analysis of different configurations of the solar air heaters

El-Bialy,

Shalaby

2023

Solar Energy

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Design and Construction of the Flat Plate Solar Air Heater For Spray Dryer

Cited by 7 publications

References 1 publication

The Simulation of Fluid Flow with a Vortex Generator 35° toward the Y-axis to Heat Transfer in Spray Dryer

The Simulation of Fluid Flow with a Vortex Generator 35° toward the Y-axis to Heat Transfer in Spray Dryer

Uji Prestasi Air Heater pada Pelat Bergelombang Melintang dengan Variasi Kecepatan Udara Masuk

Recent developments and cost analysis of different configurations of the solar air heaters

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