![]() ![]() ![]() This chapter presents the current status of electricity generation in the world, and the role of nuclear power with an emphasis for this book on the contribution of pressurized heavy water reactors (PHWRs). Therefore, it is important for testing, design, and safe operation of PHWRs to verify how the new NIST REFPROP version differs from the previous one in terms of various thermophysical properties, and, in general, how heavy-water properties differ from those of light-water, which usually is used as a modelling fluid instead of heavy water in thermalhydraulics experiments. 10.0 in which “New reference equations of state for. (However, in industry properties dated to 1980s-1990s are still in use.) This year, NIST has announced releasing a new version of REPROP Ver. For a number of years, the National Institute of Standards and Technology (NIST) REFerence PROPerties (REFPROP) software Version 9.1 was used for this purpose. In support of operation of current PHWRs and Generation III+, and to develop SMRs and SCWRs with heavy water, a reliable source of thermophysical properties of heavy water is required. There are some developments to design Small Modular Reactors (SMRs) with heavy water, and, moreover, to develop high-thermal-efficiency Nuclear Power Plants (NPPs) equipped with SuperCritical Water-cooled Reactors (SCWRs) (Generation-IV concept), which are based on current achievements in PHWR technologies. I am not a lawyer, and copyright law is very complicated, but based on this:, it would seem that the work would be in the public domain unless it was created by a contractor(in which case it would be property of the contractor), or NIST is an exempt agency(they are not listed as such).Currently, 48 Pressurized Heavy Water Reactors (PHWRs) are in operation worldwide, and about 8 PHWRs are planned to be built. I was under the impression that any works produced by the government are in the public domain. I also wonder about the legality of the government selling software. I don’t know enough about fluids to estimate the actual cost of development for software like this, but it would stand to reason that a private company would produce a less expensive version if it were possible to be done profitably. While the marginal cost of the software is near zero, there is a substantial, and re-occuring fixed cost from development/support that needs to be recouped.Ģ00$ does seem kind of steep, but I wonder what their over-all volume is, and how that cost would compare to privately developed software of that kind? For my field in EE most software packages cost 10,000$ per license on the low end, up to 50,000$ on the high end. ![]() I am not sure on their exact reasoning for charging for the software, but it is not too abnormal for government agencies to charge nominal fees to recoup the costs of various services, eg Drivers Licensing. ![]()
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