Modeling of the combined design of radiation protection and thermal insulation of pipelines with radioactive flows

The paper considers the ways to reduce irradiation doses of nuclear power plants’ personnel. A comparison of conventional and quick-removable thermal insulation was performed. The requirements for quick-removable thermal insulation are given. Comparative analysis of conventional and quick-removable thermal insulation was made relative to the labor costs for assembling and disassembling. The construction of the quick-removable combined radiation shielding and heat insulation for NNP’s equipment and systems is proposed, which is intended to reduce irradiation doses by shielding and shortening the personnel stay time in radiation fields.