On the use of ammonia as a refrigerant, the coldest temperature that can be achieved for refrigeran

ANALYSIS METHOD OF FREEZE DRYING EFISIENSIVITAS DRYING WITH MODIFIED top loading washing machines METHOD THAN INTERNAL top loading washing machines CONDENSER VACUUM DRYING | AQUILA-CIRCINUS
The drying process in principle utilize the moving mass and heat transfer occurring simultaneously. The process of heat transfer that occurs is by convection and heat transfer by conduction and radiation persists in relatively small amounts. This process will involve fluid flow with the fluid to be transferred through the structure top loading washing machines of the material during the drying process takes place. Heat must be supplied to evaporate the water and the water must diffuse through a wide variety of prisoners in order to escape from the material and the form of water vapor that is free.
Any material that would have drained the drying kinetics characteristics will vary depending on the internal structure of the material to be dried. Drying kinetics showed changes in water content contained in the material for any time of the drying time. From the drying kinetics can be seen the amount of water that has evaporated from the material, drying time, energy.Beberapa consumption in the drying process parameters to obtain the data of drying kinetics is:
In food products fruits and vegetables, which generally have a high moisture content, the drying process is done by pickling. Drying should be applied to maintain the quality of products such as flavor, color and texture. Commonly used method is to use the technique of vacuum drying and freeze drying. Analysis efisiensivitas drying method requires a comparison between the two methods of drying using vacuum drying and freeze dryer to decrease the water content in food.
One implementation is by cooking vacuum drying vacuum (vacuum frying), fry the conditions under normal atmospheric pressure (1 atm) by means of sucking / remove top loading washing machines the air from the fryer closed. In the vacuum top loading washing machines system caused several conditions as follows: Boiling temperature / cooking oil and water vapor into drops, along with the degree of vacuum. For the working principle of vacuum frying is sucking the water content in vegetables and fruits with a high speed that the flesh of the fruit-vegetable poripori not rapidly closing, so that the water content in the fruit can be absorbed perfectly. The working principle is obtained by adjusting the balance of temperature and vacuum pressure.
The weakness lies in the large vacuum drying temperatures are still valued above minimized the temperature tolerance of protein and vitamins. In vacuum frying, frying top loading washing machines temperature for fruit and vegetables range between top loading washing machines 80-83 degrees Celsius, for beans ranged between 105-110 degrees Celsius. This value is able to reduce the water content and inhibit the metabolism of microbes in food, but still cause damage to the nutrient content. top loading washing machines Some enzymes both play a role in the digestion process should only need to be inactivated enzyme were damaged due to the mean is not stable top loading washing machines at temperatures above 50 degrees centigrade. If this happens to meat processed foods and basically has experienced an extreme reduction in the levels of nutrients, the food is no longer useful for the purpose for which the original source of energy despite the sensory characteristics of the food is said to worth mentioning.
Freeze drying is a drying apparatus working principle is based on the process of lyophilization. The stages that occur in freeze drying top loading washing machines apparatus: Freezing: Items will be dried, previously frozen first. Vacuum: top loading washing machines After freezing, the product is placed under vacuum. This allows the solvent to evaporate the frozen product without going through the liquid phase, a process known as sublimation. Heat: heat applied to the frozen product to accelerate sublimation.
Vacuum freeze top loading washing machines drying has a number of significant advantages compared top loading washing machines to vacuum drying. Water remains in a frozen state during sublimation, a process that removes water from a solid to a gaseous state. This avoids the problems associated with the expansion, top loading washing machines sticking and wicking sensitive and soluble in water. top loading washing machines Vacuum drying, top loading washing machines is generally regarded as a process that converts liquid top loading washing machines into vapor, will result in a greater risk of expansion, distortion, sticking and coloring. Vacuum drying allows additional damage during the drying cycle because the item remains in the liquid state until the water evaporates.
On the use of ammonia as a refrigerant, the coldest temperature that can be achieved for refrigerant food product that is between -1 degrees Celsius to -46 degrees Celsius. The condenser acts as a trap to collect the water vapor released from the product in the drying chamber. Also, because the vacuum pumping system with a very high quality, we use the condenser to protect the pump from water vapor that can contaminate the lubricant pump. Condenser also helped shape the vapor trail