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Ambient temperature of Humid Air Turbine (HAT) Cycle Performance


3489l082l0549935873258805499368645261_9055I_7847235 \similarity between the ling cycle, shown in Figure 3. Figure 3 also shows the ambient temperature of the fuel flow HAT cycle: Chang Tuo Jiabo \i ii material flow lr ... n'1l, a Ju 1 / reduce. turbine / 102-l'100 {J / / r fuel flow sound 96L - l1 - _ is the air flow, ℃ gas moisture content of air lI1 flow rate decreases: j ---, air moisture content: j of a total pressure of the impact of moisture content than the 5 {- in the ring smaller than the brick press. because :--]-- l_-] b La Man I J 'hi 28 \ \ \cycle efficiency of a relatively large impact. With the ambient temperature, temperature and decreased the cycle efficiency reduced, but because of the air moisture content with the increase of temperature, to some extent the downward trend slowed down the work , thus slowing the downward trend in cycle efficiency. When the ambient temperature increases from 0 ℃ to 40 ℃,[link widoczny dla zalogowanych], circulation fell by 1.74% efficiency (relative value), decreases by about 1 percentage point, as shown in Figure 7. Environmental impact of temperature on the circulating power is shown in Figure 7. As temperature rises, air flow and fuel flow are reduced, the turbine flow reduction led to a decline in the power cycle; However, due to the outlet air humidity humidifier increased with the increase of temperature. slowed the downward trend in power when the ambient temperature increases from 0 ℃ to 40 ℃, circulation declined 24.3% power (relative value). HAT cycle performance of Variable Conditions simple comparison between the cold cycle with a certain stability, with the ambient temperature,[link widoczny dla zalogowanych], two circular air flow, circular flow of total pressure ratio and fuel are rapidly reduced and the trend of efficiency and power is different . the same ambient temperature changes, FLAT cycle efficiency is only 1 percentage point change, and simple Cool question about 4 percentage points change, HAT 243% cycle power changes (relative value), a simple change of 29.3% between the cold cycle (relative value ) 5 Conclusion In Part Variable Operating Conditions Based on the model to study the characteristics of HAT cycle varying conditions and with simple questions to the cold cycle performance of variable conditions, the results show that the HAT cycle changes in the environment is not easy to ask the temperature of cold cycle sensitive to changes in the same range of temperature, HAT cycle efficiency decreased by 1.74% (relative value), about 1 points lower, while the efficiency of simple questions to Cool down l0.67%, about 4 percentage points change , HAT cycle power change 24.3%,[link widoczny dla zalogowanych], a simple change of 29.3% Q Cool big reason for this difference was mainly due to key components of HAT cycle the presence of a humidifier. When the ambient temperature rises,[link widoczny dla zalogowanych], low pressure gas machine flow reduction, the exhaust temperature, then asked, after cooler and cooler water between the cooling water temperature and flow changes have followed, causing the El humidifier moisture content of air increases as the temperature rises, to some extent mitigate the power of the decreasing trend, but also slowed the trend of decreasing cycle efficiency,[link widoczny dla zalogowanych], the HAT cycle has good performance of Variable Conditions. References: l】: Xiao Wuhan. Lin Yu Mou, Cai R HT loop optimization : J] HEAT.】 994.15 (2): 133 a [36 [2] Zhang Na can Ou use process system optimization and I. Analytical solution of thermal physics [D] Beijing: Chinese Academy of Sciences.】 999 [3: Lu Shaoguang cycle pressurized fluidized bed coal-fired thermal system of the skin characteristics of Taiwan [D 'Beijing: Chinese Academy of Sciences .1996 [4 Zhao Shi Hang gas turbine cycle performance with Variable Conditions M] Beijing: Tsinghua University Press .1993 (Hui bream Series)
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