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What effects does water have when introduced in the system with refrigerant?
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Why do you need to recharge the refrigeration system?
usually the refrigerant you have pumped out of the system is contaminated (either liquid/air) contaminated refrigerant is less efficiant and will lead to a short system life. refrigerant is works kind of like the rain in a water cycle. The system starts at the compresser (the heart of the system) pushing refrigerant in to the condenser (like condensation in the clouds) condensing to a liquid and heads toward the metering device (raining) The metering devise rapidly lowers the pressure of the system into the evaporator (get the picture already?) where the refrigerant collects the heat in the refrigerated space and boils into a vapour releasing it to out side the refrigerated space. obviously there is more detail then this but thats the basic operation.
When is the most heat removed from the refrigerant in the condensing process?
When the maximum pressure of the refrigerant is achieved in the condensor and the maximum temperature differential is acheived between the condensor coil and the surrounding medium. (air, water, or other)
Four differences between heat and temperature?
Heat is the amount of total energy contained within an item; both potential energy and kinetic energy. Potential energy is stored energy and kinetic energy is moving energy. Temperature is a number that corresponds to the amount of kinetic energy in an object. When heat is introduced into a system, molecules move faster. When molecules move faster, they bump into each other harder and more often. These measure of the energy of these collisions is temperature. So, temperature can result from heat being introduced into an object; that is, heat is energy introduced into a system and one affect heat can have is to increase the temperature. Heat introduced into a system can also cause a phase change; like ice melting into water, with no subesquent speeding up of molecules, and therefore no temperature change. In summary, heat is energy introduced into a system and is a measure of all the energy in an object. Temperature is proportional to the amount of kinetic energy an object has.
What are the effects of refraction?
In water objects look closer then they really are.
Why must water be displaced in order for a system to float?
A system (object) to float in water must displace enough water that equals (or exceeds) the mass of the system/object.
Can Water be a refrigerant?
Yes - in fact, water has a refrigerant identification - it is known as R-718.
How water chiller works?
Water cooled chiller work on principal that water is circulated in condenser for removal of heat from the system and refrigerant gas is thus condensed in condensor.
Why do you need to recharge the refrigeration system?
usually the refrigerant you have pumped out of the system is contaminated (either liquid/air) contaminated refrigerant is less efficiant and will lead to a short system life. refrigerant is works kind of like the rain in a water cycle. The system starts at the compresser (the heart of the system) pushing refrigerant in to the condenser (like condensation in the clouds) condensing to a liquid and heads toward the metering device (raining) The metering devise rapidly lowers the pressure of the system into the evaporator (get the picture already?) where the refrigerant collects the heat in the refrigerated space and boils into a vapour releasing it to out side the refrigerated space. obviously there is more detail then this but thats the basic operation.
What is the difference between vrv system and chiller?
Chiller uses chilled water while vrv uses refrigerant directly
What are the parts of an hvac unit?
There are a lot but some of them are * Fan * Coils * hot water piping * chilled water or refrigerant piping * Pumps * Distribution system(ductwork)
What is the best way to overcome the effects of alcohol in your system?
Drink Water
How much water does it take to disable a refrigerant system?
The answer is, 1 Drop. p.629 Refrigeration & Air Conditioning Technology 5th Edition
What is Dehydration of an HVAC system?
A desiccant-filled filter/dryer (dehydrator) is installed in the refrigerant liquid line to remove moisture. Otherwise water and the refrigerant can combine to form an acid which would be corrosive to the compressor, to the tubing and to the specialty fittings.
When a chiller is used the secondary refrigerant that circulates in the building is?
Water
What are the health effects of hard water?
The health effects of hard water are cancer risks (high calcium), Cerebrovascular mortality (high magnesium), and malformations of central nervous system.
How is the refrigerant cylinder pressure kept above the system pressure when charging with vapor from a cylinder?
The refrigerant cylinder is heated in a tub of water to no more than 90 degrees F. Electric heating blankets manufactured for this purpose may also be used.
What are the refrigerant used in absorption refrigeration?
usually refrigerant is ammonia and water.Meanwhile absorber is water, lithium bromide and calcium chloride. usually that be in paired is ammonia-water or lithium barium-water
