These pictures are hard to come by these days because of 9/11. Now pressurised water reactors are different and this is the schematic of a PWR.
这些图片现在很难得到,由于911事件，现在压水式反应堆,是不同的，这是它的原理图。
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This is a very important design difference between a BWR and a PWR. So, BWR fuel assemblies are essentially canned to make sure we have an adequate supply of cooling water.
And clearly, many different types of fuel assemblies, as you will see a BWR and PWR fuel assemblies are different and all heat that is generated in that one fuel pin needs to be removed.