To correct the influence of local temperature non-uniformity, which was caused by fuel concentration stratification, on the fluorescence intensity, an iteration procedure was performed to account for the fuel evaporation cooling effect at each pixel assuming isenthalpic
At the same time the heat removed is increased by around 5%, since the expansion of the liquid refrigerant is not isenthalpic
Vapor compression cooling cycles deviate from the Carnot refrigeration cycle in several ways, such as isenthalpic
expansion of saturated liquid at the condenser outlet and desuperheating of refrigerant vapor at the compressor outlet.
Therefore, when the assumption of the isenthalpic
flow through the valve holds true, the specific enthalpy of the gas transferred between the volumes depends on the flow direction, and it is equal to
The gas flow between the two coils is a free expansion, which is isenthalpic
All systems depend on gas expansion, either (a) isenthalpic
(Joule-Thomson) with no work removal, or (b) one of the systems utilizing work extraction to reduce the energy content and therefore the temperature of the gas.
Because most gases will see a reduction in temperature during isenthalpic
expansion (this is the Joule-Thompson Effect), it is possible that even a dry gas can develop liquids if it is subject to the pressure drop in a typical fuel supply system (Figure 1).
Additionally, the enthalpy of the refrigerant at the expander outlet is less than it would be if an isenthalpic
expansion device were employed.
The refrigerant temperature at the inlet of the test section was calculated by considering isenthalpic
process in expansion device.
Simulator functions include steam adding and splitting, isenthalpic
and isentropic pressure change, and heat exchange.
Expansion valves are modeled by isenthalpic
All the expansion valves work at isenthalpic
condition in the study.