the compressor efficiency drops off dramatically. Where there is tower water relief (decreasing tower water temperature), variable speed drives can be used to improve part load efficiency. By utilizing two comp
(R, κ, ν), centrifugal compressor flow field geometry and the degree to which the compressor flow field has been optimally designed, as well as on the compressor operating conditions (Mach number, Reynolds number), which determine the work coefficient (ψ) and compressor efficiency (η) (...
efficiency of a centrifugal compressor under capacity control, by providing a linkage in the slit of the diffuser vane of the compressor to drive the diffuser vane and inlet guide vane in connection with each other and by determining the form of the slit in terms of a prescribed formula. CONS...
capacities and temperature lifts is scarce in the present literature as in most of the studies, only a certain fluid, compressor capacity or operating condition has been considered disabling the comparison of the compressor design and efficiency in different working conditions in a systematic way, cre...
Estimated total-to-static efficiency, ηts = 0.85. Assuming that the axial velocity is unchanged across the stage, determine (i) the specific work done by the gas; (ii) the blade speed; (iii) the static temperature at stage exit. (c) The blade material has a density of 7850 kg/m3 ...
A method for substituting a replacement refrigerant for an existing refrigerant in a centrifugal compressor includes the steps of selecting a desired impeller Mach number for the centrifugal compressor, selecting a base refrigerant constituent, combining at least one additive refrigerant constituent with the...
PROBLEM TO BE SOLVED: To provide a suction casing of a centrifugal compressor with suppressed deterioration in efficiency of the centrifugal compressor by ... 八木 学,柴田 貴範,伊藤 俊雄,... 被引量: 0发表: 2013年 The Numerical Simulation of the Interior Flow of a Dual Orifice Centrifugal Noz...
Dual Compressor Chillers As inlet guide vanes are used to modulate the capacity of a compressor, the compressor efficiency drops off dramatically. Where there is tower water relief (decreasing tower water temperature), variable speed drives can be used to improve part load efficiency. By utilizing ...
At ratios above ten for air the compressor may wear out fast and may be dangerous. There is a lesser problem with a heavier gas such as Argon or Krypton. A ratio of 7:1 would be adequate for very good efficiency, reduced risk, and reduced energy loss within the engine. With Argon, ...
should be responsive to changes in the composition, inlet pressure and inlet temperature of the gas entering the compressor and, in many cases, should be such as to ensure that the compressor is operated as closely as possible to the surging condition in order to obtain the best efficiency. ...