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In this paper a new formulation of the general capacitor placement problem is introduced. Practical aspects of capacitors, load constraints and operational constraints at different load levels are considered. This study considers the realistic nature of load variation of the feeder. The problem is solved using a powerful simulated annealing approach presented in this paper. The availability of simulated...
This paper describes some of the key features and conclusion of a preliminary thermal control system design for the National Aero-Space Plane (NASP). The cooling of the airframe and propulsion system is achieved by pumping cold fuel through a network of heat exchangers prior to combustion. Simultaneously, the controller must provide the proper total flow for thrust generation, and must optimize the...
This paper presents a set of working equations for the dynamic simulation of vertical subcooling condensers. The model shows that the condenser's dynamic characteristics change dramatically with vapor load. The changing dynamics make it difficult to control the subcooled condensate temperature with cooling water flow. The paper also discusses two different schemes for improved temperature control...
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