Güneş Enerjili Kurutma Sistemlerinde Parafin Kullanılarak Boya Çamurunun Kurutulması

Yıl 2021, Cilt: 9 Sayı: 1, 231 - 241, 31.01.2021

Zeinab Amin , Görkem Yüksel , Güray Salihoğlu , N. Kamil Salihoğlu

https://doi.org/10.29130/dubited.787257

Cited By: 2

Öz

Güneş kurutucu sistemi, ileri bir doğal güneş kurutma teknolojisi olarak geniş alanlardada kullanılmaktadır. Bu çalışmanın amacı; atık boya çamurunun yönetimi sürecinde güneşle kurutmayı alternatif bir proses olarak incelemektir. Çalışmada faz değiştirme malzemesi olarak parafin içeren bir güneş kurutma sistemi tasarlanarak kurutma verimliliği araştırılmıştır. Kurutulan çamur kalınlığının düşük olması sebebiyle kurutma sırasında karıştırmanın etkisi gözlenememiştir. Kurutma işlemi 8 saatte 1849 Wh/m2 kümülatif güneş radyasyonu ile yapılmıştır. İç sıcaklık, nem, güneş radyasyonu, zaman, çamur kütlesi ve hacmini azaltmanın yanı sıra kurutucuda kullanılan ekipmanlar ısı transferini güçlendirmek için önemli faktörler olarak belirlenmiştir. Sistemde fan ile oluşturulan hava sirkülasyonunun yetersiz olduğu hesaplamalı akışkanlar dinamiği (HAD) ile tespit edilmiştir, ve simülasyon modeli kurutma sisteminin optimize edilmesi için kullanılmıştır. Gözenekli yapının oluşumu, bir tarama elektron mikroskobu (SEM) kullanılarak kurutulmuş çamurda gözlenmiştir. Atık boya çamurunun yönetiminde güneş kurutucusunun geliştirilmeler sonrası kullanılabilecek bir alternatif olduğu sonucuna varılmıştır.

Anahtar Kelimeler

Boya çamuru, Güneş Kurutma Sistemi, HAD

Drying of Paint Sludge Using Paraffin in Solar Drying Systems

Öz

Solar dryers are widely used as an advanced natural drying technology. The purpose of this study is to examine the solar drying as an alternative step in the process of waste paint sludge management. In the study, a solar drying system containing paraffin as phase change material was designed. The drying efficiency of sludge was investigated. Due to the lower sludge thickness, the effect of mixing during drying was not observed. Drying was conducted for 8 hours with 1849Wh/m2 cumulative solar radiation. The indoor temperature, humidity, cumulative solar radiation, and time were determined as important parameters to be evaluated. Sludge mass and volume, equipment used in the dryer have been identified as other factors to strengthen heat transfer. It has been determined with the computational fluid dynamics (CFD) that the air circulation created by the fan is insufficient and simulation model was used to optimize the drying system. The formation of the porous structure was observed in dried sludge using a scanning electron microscope (SEM). It is concluded that the solar drying process is an alternative method that can be applied in the management of waste paint sludge if the solar dryer is developed.

Anahtar Kelimeler

Paint Sludge, Solar Drying System

Kaynakça

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