Product Cooling
Product cooling involves lowering the temperature of various components and parts. This application is known as product cooling. Many production processes require the product to be hot during processing and then cooled to room temperature afterward. In the metal processing industry, castings, extrusions, and hot-processed products fall into this category, as well as all components that have been heat-treated. In the food industry, many products are packaged hot and must be cooled for storage and shipping. For product cooling, there are options using both BETE nozzles and EXAIR air knives and coolers.
How does product cooling work?
Cooling a solid object is typically achieved by spraying it with a coolant, usually water. The rate at which an object cools through a water mist depends on the shape of the object, the initial temperature, the desired final temperature, the heat capacity of the object, and the convection coefficient between the object and the water. The shape of the object takes into account surface area, volume, and indirectly thermal conductivity. Additionally, it is essential to consider that the object's ability to transfer heat may not be uniform, as it can consist of different materials.
The main idea is to evenly distribute a large amount of water over the object so that there is maximum contact and heat transfer between the object and the water. Spraying is advantageous because it can cover virtually any object shape. Cooling takes time; the significant advantage of spraying the coolant is that the process is faster than simple immersion. As the object cools, the water that comes into contact with the object gets warmer. It is important to wash away the warm water so that cooler water can come into contact with the object to allow further cooling. This rinsing action is an inherent characteristic of the fluid flow and spray dynamics produced by a nozzle.
In some special cooling applications, liquid nitrogen is sprayed to cool or freeze products in a time- and cost-efficient manner. The extremely low boiling point of liquid nitrogen (-320 °F) allows it to maintain extremely low temperatures and high cooling efficiency in product cooling.
Consultancy & Custom Solutions
We are happy to advise you on the possibilities. We look forward to finding out which BETE spray nozzles or EXAIR air knives are suitable for your product cooling needs. Take advantage of the expertise of our specialists who are eager to collaborate with you. We are pleased to offer you a customized solution. Contact us for advice.
