Vzájemné porovnání provozu šroubového kompresoru NK 40 při stavu za studena a při zahřátém stavu

Abstract

Bachelor thesis is divided into two parts – theoretical and practical. The theoretical part describes the various types of compressors and then the screw compressor is characterized in detail. The introductory part mentions the history and construction of this type of compressor. Subsequently, the screw compressors are divided according to lubrication, gear profiles, or according to the number of stages. The theoretical part also mentions the working principle, flow scheme, various types of regulation, compressor failures and the use of these energy devices. The practical part deals with laboratory measurement of the performance of the NK 40 screw compressor in the cold state and in the optimal operating state. From the measured values, the individual variables necessary to create the energy characteristics are then calculated and the two states are then compared.