A Simple Mathematical Model for Refrigerating Compressor Optimization

A Mathematical Model for Internal Leakage in a Rotary Compressor

The internal leakage has a great effect on the performance of a rotary compressor. In this paper a leakage model as a part of a complete simulation model is developed. The leakage model analyzes the oil/refrigerant mixture leakage flow through the roller radial clearance caused by the motion of roller relative to cylinder wall and the pressure difference and considers the effect of the motion o...

A Simple Mathematical Model for Batesian Mimicry

A simple mathematical model is presented for Batesian mimicry, which occurs when a harmless species (mimic) is morphologically similar to another species (model) that is noxious or distasteful to predators, thus gaining a measure of protection. Although mathematical models for species interaction, such as predator-prey or competition, are well known, there is no similar literature on mimicry. T...

Mathematical Modeling and Simulation of Refrigerating Compressors

The Theoretical Analysis and Experimental Research for a Refrigerating Scroll Compressor

Ti-.r s papP.I"' r s a sum-uF~ 1 n ex~er 1 ence by wh r t:::h authci"'S develo~ed a +r~st ~rctcty~e ~Lrol! ccmpresso~ to~ a1r cond1t1on 1n Ch•na. Taking cne ""'" ot ;ealed tlu1d pcck<ets wh 1 ch are o:omposed c+ the orb 1 t 1 no;J and t 1 x"d so:"c I Is as conti""LII volumes' th~ working !=l'rOc:~~sj-; th~rmodynamrc$ Simulation IS made. It was found~d en the t1rst law ct thermOdYnamiCS and the ...

A Mathematical Model for Flood Protection

Many regions in the world are protected against flooding by a dike, which may be either natural or artificial. We deal with a model for finding the optimal heights of such a dike in the future. It minimizes the sum of the investments costs for upgrading the dike in the future and the expected costs due to flooding. The model is highly nonlinear, nonconvex, and infinite-dimensional. Despite this...