Manual Drying in the Process Industry

Free download. Book file PDF easily for everyone and every device. You can download and read online Drying in the Process Industry file PDF Book only if you are registered here. And also you can download or read online all Book PDF file that related with Drying in the Process Industry book. Happy reading Drying in the Process Industry Bookeveryone. Download file Free Book PDF Drying in the Process Industry at Complete PDF Library. This Book have some digital formats such us :paperbook, ebook, kindle, epub, fb2 and another formats. Here is The CompletePDF Book Library. It's free to register here to get Book file PDF Drying in the Process Industry Pocket Guide.

Solids Drying: Basics and Applications - Chemical Engineering

The figure on the left shows a commonly used drying principle. The process is also drawn in the Mollier diagram below. The hot air is used to evaporate water out of the product that needs to be dried. Therefore, the temperature of the air decreases and its humidity increases. The cool, humid air 2 is than partly exhausted, however, the main part of the air is recirculated in the dryer. To compensate for the exhausted humid air, fresh dry outside air is brought into the cycle 3 and preheated 4. After preheating this air is mixed with the recirculated humid air and the mixture 5 is than heated towards the required process temperature 1.

Heat pump dryer

The exhausted humid air contains a lot of energy. The temperature level of this air is low and direct reuse inside the dryer is therefore not possible. Application of a heat pump gives the possibility for waste heat recovery.

Description

With a heat pump the extracted heat from the exhaust air is upgraded to a higher temperature level and reused to heat the dryer. The principle of operation of this heat pump dryer is described below. On the right, a drying process is shown that is heated with the use of a heat pump. Furthermore, a Mollier diagram in which the drying cycle is highlighted is shown in order to provide more insight in this process.

The project described below is realized in practice and gives a more detailed description of the so called 'heat pump dryer'. Its evaporator both cools and dehumidifies the humid air. The extracted energy is upgraded by the heat pump to a higher temperature level that can be used to heat the dryer with its condenser. The figure on the left shows a commonly used drying principle. The process is also drawn in the Mollier diagram below. The hot air is used to evaporate water out of the product that needs to be dried. Therefore, the temperature of the air decreases and its humidity increases.

The cool, humid air 2 is than partly exhausted, however, the main part of the air is recirculated in the dryer.

Drying processes

To compensate for the exhausted humid air, fresh dry outside air is brought into the cycle 3 and preheated 4. After preheating this air is mixed with the recirculated humid air and the mixture 5 is than heated towards the required process temperature 1. The exhausted humid air contains a lot of energy.

The temperature level of this air is low and direct reuse inside the dryer is therefore not possible. Application of a heat pump gives the possibility for waste heat recovery.

With a heat pump the extracted heat from the exhaust air is upgraded to a higher temperature level and reused to heat the dryer. Bestselling Series. Harry Potter. Popular Features.

Drying endpoint

New Releases. Van't Land.


  1. Improving Drying Methods in Manufacturing!
  2. Old Wounds (Dell Mystery).
  3. Drying technologies in the chemical industry.

Description Among those interested in drying are chemical engineers, energy specialists, and mechanical engineers. This book assists the process development engineer, the process engineer, and the plant engineer in selecting drying equipment.