Abstract: A heat exchanger generally employs a method for supplying liquid having critical pressure or higher or high pressure in order to suppress boiling. However, gas obtained by a evaporator behind the heat exchanger has relatively low pressure, and therefore supplying the liquid to the heat exchanger requires a system for converting an energy form of the obtained gas into kinetic energy or electrical energy, and increasing the pressure by a mechanical pump. Thus, the complicated system involving an efficiency loss is only solution, and it is difficult to achieve simplification of a system or reduction in the weight of a propellant supply device in a moving body, specifically, a flying object.

Abstract: It is a problem to be solved to provide Electric power control systems and methods which do not require one-to-one communications in both directions, in which the communications traffic does not rapidly increase even if the number of electric power consumption elements increases and which have good expandability. In addition, it is also a problem to be solved to provide information transfer capability control systems and methods which can be worked by the similar principles. In over to solve the problems, information representing an indication value for adjusting total consumed electric power which is a function of the difference between a current value and a reference value of the total consumed electric power in the group is transmitted by broadcast.

Abstract: A heat exchanger generally employs a method for supplying liquid having critical pressure or higher or high pressure in order to suppress boiling. However, gas obtained by a evaporator behind the heat exchanger has relatively low pressure, and therefore supplying the liquid to the heat exchanger requires a system for converting an energy form of the obtained gas into kinetic energy or electrical energy, and increasing the pressure by a mechanical pump. Thus, the complicated system involving an efficiency loss is only solution, and it is difficult to achieve simplification of a system or reduction in the weight of a propellant supply device in a moving body, specifically, a flying object.

Abstract: It is a problem to be solved to provide Electric power control systems and methods which do not require one-to-one communications in both directions, in which the communications traffic does not rapidly increase even if the number of electric power consumption elements increases and which have good expandability. In addition, it is also a problem to be solved to provide information transfer capability control systems and methods which can be worked by the similar principles. In over to solve the problems, information representing an indication value for adjusting total consumed electric power which is a function of the difference between a current value and a reference value of the total consumed electric power in the group is transmitted by broadcast.