An earlier reactor was the Zimmer Power plant in Cincinnati, which was originally designed as a nuclear plant but it was converted to natural gas before it began operating.
更早一些的例子是，位于辛辛那提的奇摩尔发电厂，最初的设计是核电厂，但是在运行之前改为燃气发电。
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Next is the cost of as much as $10 billion and five years to build each reactor, compared with about $1 billion for a natural gas-fired power plant.
Large temperature and concentration differences taking place in CVD process lead to natural convection and concentration diffusion which interact with forced convection and complex reactor geometries.