bine generator, and char- 

 acteristics of the heat 

 exchangers in different 

 operating regimes 



The technical tasking is compiled by the organi- 

 zations that order the equipment for the manu- 

 facturer and contains all of the basic require- 

 ments of the consignee: unit power, basic steam 

 parameters (pressure, temperature); parameters 

 of the extracted steam (pressure, temperature, 

 amount), the magnitude of vacuum, assigned tem- 

 perature and amount of cooler water, specific ex- 

 penditure of heat per generated kilowatt hour, 

 etc. 



°The preliminary project design is compiled by the 

 manufacturer of the equipment and serves as the 

 basis for developing several variants of the or- 

 dered turbine. The elaboration of several vari- 

 ants is required for the final choice of the tur- 

 bine by the consignee. 



c The technical project design serves as the basis 

 for the final development of the thermal and de- 

 sign system of the turbine and is done in accord 

 with the approved draft design based on the va- 

 riant selected by the consignee. In the techni- 

 cal design all of the basic qualitative indica- 

 tors of the turbine are finally refined: the spe- 

 cific flow rate of heat, vacuum, internal effi- 

 ciency of the cylinders, etc. The technical de- 

 sign is examined by experts of the consignee and 

 is approved by the latter. The technical design 

 also determines the manufactured price of the 

 turbine and is the basis for drafting the working 

 blueprints and other technical documentation of 

 the plant which is manufacturing the turbine. 



Each task was also divided into separate work stages 

 and projects. 



Later, in the course of installing and adopting the 

 turbine it became necessary to make certain changes 

 both in the design of the turbine and in the thermal 



144 



