isentropic


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Related to isentropic: Isentropic flow, Polytropic

isentropic

[¦īs·ən¦träp·ik]
(thermodynamics)
Having constant entropy; at constant entropy.
References in periodicals archive ?
Starr (NASA Goddard Space Flight Center) to the study of cirrus clouds and their role in climate, and who introduced author JRC to the magic of the isentropic surfaces plot depicted here as Fig.
3 shows the variation of isentropic compression work with respect to change in evaporator temperature.
In order to predict how the dynamic temperature and pressure inside of a direct injection engine may affect the relative timescales of the ethanol evaporation, an isentropic Otto cycle was used to provide ambient pressure and temperature as a function of time.
And this curved surface was designed so that pressure increasing process is isentropic.
4117 Cooled System SDT Isentropic Isentropic ([degrees]C/ Discharge Enthalpy Change [degrees]F) Enthalpy (kJ/kg)/(btu/lb) (kJ/kg)/(btu /lb) Air 52/125.
The change in total pressure is calculated via isentropic assumptions/losses where the static enthalpy of air at the stator exit under isentropic expansion ([h.
The compressor operating points are determined based on the available power adjusted by the effect of off-optimum power turbine speed, the suction and discharge pressure (the isentropic head) imposed by the pipeline condition.
The wave interaction problem for the Temple class has been widely investigated recently, such as for the pressureless gas dynamics equations [21], the isentropic Chaplygin gas dynamics equations [22, 23], the Aw-Rascle traffic flow model [14], and various types of chromatography systems [24-27].
For the development of dynamic equation of pressure we use the assumption of adiabatic and reversible process inside regulator ducts, so we can use the isentropic relation between pressure (P), density, and specific heat ratio ([gamma])
Consider: the new supercharger-thanks to rotary profile changes that reduce the clearance between rotors to minimize internal leakage, rotor twist modifications that shift peak efficiency for overall fuel economy improvement, and new porting features that eliminate unnecessary air compression--provides a 10 to 16% improvement in isentropic efficiency in targeted operating zones compared to Eaton's own TVS R410 product.
For the subscript, (int) and (out) representing inlet and outlet stream, ( evap, cond, comp, ED ) representing the main devices from the systems as evaporator, condenser, compressor and expansion valve, the letters (ele, ref, rep, rev, ef, is) representing the electricity, the refrigerant, the makeup water, reversible, the effective and isentropic, and finally the letter (v) represented the space volumetric.