Any particular radiative heat flux can arise in two different ways. First, it can come from a low inlet coolant temperature and high coolant flow rate, or secondly, from a high inlet coolant temperature and low coolant flow rate. A high flow rate provides an increase in the coolant circulating pump power, but the low coolant temperature makes temperature control more easy. With a solar dynamic power system, an increase in temperature leads to no increase in the generation of power, while an increase in flow rate does lead to increase in the pump power. Therefore, the former operation is more beneficial. The reverse (low flow rate, high temperature) should be selected for parts of the mission when greater sensitivity in temperature control is required, because the characteristics of the cooling system at this time are similar to a two-phase flow loop. Figures 6 and 7 show the results of numerical simulations together with experimen-
RkJQdWJsaXNoZXIy MTU5NjU0Mg==