Scientifically speaking, a vacuum is a space of such extremely low pressure that there is no matter present to affect the processes that occur there. Outside of the cold vacuum of space, a vacuum can be created right here on earth. Using a vacuum pump, air and other particles can be removed from a rigid space to create a man made vacuum chamber.
When most people think about freeze drying, Neapolitan astronaut ice cream bars are usually one of the first things that come to mind. And yes, it’s true that freeze dried foods are a NASA staple. But freeze drying is so much more than that. Let’s take a closer look at the scientific process and applications of modern freeze drying.
Freeze drying, invented in Paris in 1906, is a very gentle dehydration process used to preserve high quality foods. During WWII, the process was implemented to preserve blood serum. Since then, freeze drying has become a critical process for preserving foods, pharmaceuticals, and a wide range of other products–even cannabis. Cannabis growers are turning to freeze dryers to help them process their crops because dried cannabis flowers are most popular form for purchase and consumers want to see fresh-looking buds.
The COVID-19 pandemic has introduced a slew of challenges for the industrial community. With whole economic sectors shuttered, bottlenecks and deficiencies in the supply chain, drastic changes in consumer behavior, roller coaster stock market figures, collapsing oil demand, furloughed work forces, and new health and safety restrictions…companies are reeling to steady their ships.
Heat sinks are specialized heat exchangers that use the laws of thermodynamics to remove waste heat from these devices. Heat sinks come in a huge range of shapes, sizes, layouts, and compositions. However, the basic concept remains the same across the board.