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the vapor compression cycle is the cycle used in the process of the refrigerator. for more info go to www.wikipedia.com . thanx for asking ur questions!!!!! ~tammie
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When water leaves a body of water after it is heated the process is called?
The process by which water leaves a body of water after it is heated is called "evaporation." This occurs when the water molecules gain enough energy from the heat to break their bonds and transition from a liquid to a gaseous state. The resulting water vapor rises into the atmosphere, where it can eventually condense and form clouds, leading to precipitation and the cycle of water.
What are the 4 steps of the engineering cycle?
the steps are design prototype test evaluate
What is the difference between stress and strain and tension?
Stress is the tension/compression force per unit area.Strain is the ratio of change of length to the original length, due to applied force.Tension is the applied force which tends to elongate the body.
What is the effect of negative rack angle?
A negative rack angle leads to downward pressure that results in compression waves appear in front of the cutting instrument. It takes great pressure to avoid the cutting implement's blade rising up on those waves.
What are the frequency and duty cycle when a periodic signal waveform has a pulse width of 25s and a period of 150s?
Frequency: F=1/P =1/150=6.66milliHertz or .00666 Hz which is a very low frequency. Duty Cycle: DC=PW/P=25/150=16.6% Your example uses seconds. it is more common to see examples in microseconds or less. The math is the same.
What is the compression cycle?
the vapor compression cycle is the cycle used in the process of the refrigerator. for more info go to www.wikipedia.com . thanx for asking ur questions!!!!! ~tammie
What are the four basic components in the vapor compression refrigeration cycle?
Vapor compression in the refrigeration cycle is the process which turns heated vapor into a cold liquid. This allows the coolant to flow through the condenser and cool the air.
How do you improve the performance of vapor compressor refrigeration cycle?
In practical applications, vapor-compression refrigeration systems are the most commonly used refrigeration systems, and each system employs a compressor. In a basic vapor compression refrigeration cycle as shown in Figure 3.28, four major thermal processes take place as follows: • evaporation, • compression, • condensation, and • expansion.
Why do the suction pressure increase of a reciprocating compressor?
Pressure increases due to load(or heat intake from evaps).if asking about off cycle. If asking about compression cycle,its the compression of vapor into a higher pressure side of system along with heat of compression adding to temp-pressure relationship.
What is the difference between gas power cycles and vapour power cycles?
Vapor-compression cycle(See Heat pump and refrigeration cycle and Vapor-compression refrigeration for more details)The vapor-compression cycle is used in most household refrigerators as well as in many large commercial and industrial refrigeration systems. Figure 1 provides a schematic diagram of the components of a typical vapor-compression refrigeration system.Figure 1: Vapor compression refrigerationThe thermodynamics of the cycle can be analyzed on a diagram[11][12] as shown in Figure 2. In this cycle, a circulating refrigerant such as Freon enters the compressor as a vapor. From point 1 to point 2, the vapor is compressed at constant entropy and exits the compressor as a vapor at a higher temperature, but still below the vapor pressure at that temperature. From point 2 to point 3 and on to point 4, the vapor travels through the condenser which cools the vapor until it starts condensing, and then condenses the vapor into a liquid by removing additional heat at constant pressure and temperature. Between points 4 and 5, the liquid refrigerant goes through the expansion valve (also called a throttle valve) where its pressure abruptly decreases, causing flash evaporation and auto-refrigeration of, typically, less than half of the liquid.Figure 2: Temperature-Entropy diagramThat results in a mixture of liquid and vapor at a lower temperature and pressure as shown at point 5. The cold liquid-vapor mixture then travels through the evaporator coil or tubes and is completely vaporized by cooling the warm air (from the space being refrigerated) being blown by a fan across the evaporator coil or tubes. The resulting refrigerant vapor returns to the compressor inlet at point 1 to complete the thermodynamic cycle.The above discussion is based on the ideal vapor-compression refrigeration cycle, and does not take into account real-world effects like frictional pressure drop in the system, slight thermodynamic irreversibility during the compression of the refrigerant vapor, or non-ideal gas behavior (if any).More information about the design and performance of vapor-compression refrigeration systems is available in the classic Perry's Chemical Engineers' Handbook.[13]Vapor absorption cycleMain article: Absorption refrigerator In the early years of the twentieth century, the vapor absorption cycle using water-ammonia systems was popular and widely used. After the development of the vapor compression cycle, the vapor absorption cycle lost much of its importance because of its low coefficient of performance (about one fifth of that of the vapor compression cycle). Today, the vapor absorption cycle is used mainly where fuel for heating is available but electricity is not, such as in recreational vehicles that carry LP gas. It is also used in industrial environments where plentiful waste heat overcomes its inefficiency.The absorption cycle is similar to the compression cycle, except for the method of raising the pressure of the refrigerant vapor. In the absorption system, the compressor is replaced by an absorber which dissolves the refrigerant in a suitable liquid, a liquid pump which raises the pressure and a generator which, on heat addition, drives off the refrigerant vapor from the high-pressure liquid. Some work is needed by the liquid pump but, for a given quantity of refrigerant, it is much smaller than needed by the compressor in the vapor compression cycle. In an absorption refrigerator, a suitable combination of refrigerant and absorbent is used. The most common combinations are ammonia (refrigerant) and water (absorbent), and water (refrigerant) and lithium bromide[absorbent].
Coefficient of performance of Vapor compression and Vapor absorption system?
For vapor compression: beta= Qdot / Ẇ =(h1-h4)/(h2-h1)
What are the various types of refrigeration cycles?
Absorption & vapor compression.
The water cycle is the?
Water cycle is the way that water moves from being water vapor, to liquid water and back to water vapor.
What does a combination of a compression and a rarefraction create?
it creates a cycle
What are some cycle names like the water vapor cycle?
reproductive cycle. glucous-insulin cycle. lunar cycle. cellular cycle
What cycle is when water vapor becomes liquid?
The cycle is called the hydrologic or H2O cycle. Specifically, condensation is the process in which water vapor transforms into a liquid. This process is responsible for the development of clouds and fog.
What form of water is the most abundant at any time in the water cycle?
water vapor
