Turboexpander Unit Use for Efficiency Increase of Gas Compressor Station

Energy saving during the partial heat load period by integrating a steam-heated absorption heat pump into the thermal scheme of a PT-60/70-130/13 steam turbine

“…The figures of harmful emissions of CO 2 and NO x into the atmosphere when burning 1 t of natural gas (corresponding to ~1.704 t c.f. ), is given in [16,17]; the following amount of harmful emissions is formed: m CO 2 = 2.726 t/t, m NO x = 0.01 t/t.…”

Апроксімаційна Математична Модель Абсорбційного Теплового Насосу З Паровим Обігрівом Для Інтеграції У Теплову Схему Парової Турбіни

“… the effi ciency of the boiler plant as well as the peak hot water boiler (PHWB) is 90%;  the relative eff ective effi ciency of the fl ow path: HPC -80%, MPC -82%, and LPC -55.5%;  the nominal steam parameters at the turbine inlet: the pressure is 12.75 MPa, the temperature is 555 С;  the heat supply schedule is 150/70 С;  the steam consumption at the outtake is unchanged and amounts to 80 t/h at the following parameters: 1.296 MPa, 280 С, and a condensate return of 75% at a temperature of 40 С;  the maximum throughput of steam outtake is 150 t/h (for production, at HPH-3 and feed water deaerator) [21];  the steam parameters for the heat outtake are un changed (RCD is closed): the pressure is 0.1869 MPa, the temperature is 118.1 С;  the maximum throughput capacity of heating steam outtake is 150 t/h (the boiler, LPH-2, the atmospheric and vacuum deaerators (VD)) [22];  the feed of network water is 0.2% at a temperature of 20 С;  the steam parameters in the turbine condenser are as follows: the pressure is 0.00334 MPa, the temperature is 25.9 С, and the minimum fl ow rate is 26 t/h (RCD is assumed to be unsealed);  since the steam fl ow to the condenser is low, LPH-1 is disabled, the same is true for recirculation to the condensate collector;  the electrical power for the system own needs consists of the capacity of the condensate, the drainage, the feed, and the circulation pumps;  the circulating system with a constant steam fl ow to the condenser of 26 t/h operates at a water fl ow rate of 1300 t/h and a technical water feed of ~26 t/h; the electric power of the cir culation pump is ~83 kW at a head of 20 m water column. The pressure of steam outtake in PT-60 is close to the nominal values [21].…”

“…The results of calculation of an improvement in the performance of PT-60 turbine unit after the integration of AHP into its TS are presented in Table 4. To determine the change in the amount of harmful emissions of CO 2 and NO x into the atmosphere [22], it has been shown that when bur ning 1 ton natural gas, the following amount of harmful emissions is formed: Н СО2 = 2.726 t/t, Н NOx = 0.0143 t/t. The results of the calculation of the change in the turbine unit parameters for AHP integrated into PT-60 TS are presented in Table 4.…”

“…Fig.3. The internal capacity of PT-60 LPP depending on the steam consumption according to factory data[22] …”