With the progress of human civilization and the growing global population, human demand for energy is also growing, and there are many wars caused by the snatching of energy resources every year. Under this background, it is particularly important to convert all kinds of natural energy into direct energy. Turbine generator is a kind of device that uses natural energy to promote the operation of mechanical parts to generate kinetic energy. The gas turbine engine is one of the turbines with high efficiency, simple device and high controllability. At present, gas turbines can meet almost all civilian electricity needs, but the conversion rate and working life has become one of the major equipment manufacturers focus on research. There are many factors that affect the conversion rate and life, among which the intake air humidity is one of the important factors to improve the efficiency of the turbine engine.

Why intake humidity affects turbo engines

Intake air humidity is critical for good turbo control. The low temperature intake air will improve the operating performance of the turbine. This is because the lower temperature leads to an increase in air density and an increase in the mass of air flowing into the turbine, thereby increasing the power generation. For every degree of temperature increase, approximately 0.5% loss of power, reducing power output and increasing the cost of turbine operation. The temperature of the intake air should not be too low, and the humidity should not be too high, otherwise condensation or even icing will occur, which will damage the blades of the turbine. The humidity of the intake air is too low, otherwise it is not enough to cool the air and cannot ensure that the turbine runs efficiently in zui. With the help of reliable humidity monitoring, it is possible to avoid condensation and cool and compress the intake air, zui maximizes power generation.

How to cool and filter the intake air

In order to achieve proper air cooling, there are generally two methods. One is the refrigeration (compression, absorption) cooling method, and the other is the evaporative cooling method (wet film, water spray atomization). Many energy consumption calculation experiments show that the choice of evaporative cooling mode, not only significantly reduce the temperature, can significantly improve the output of the gas turbine, reduce the overall energy consumption, and less investment, operation and maintenance is simple, but also has shortcomings. Large volume, limited installation space, and large intake loss will affect turbine efficiency. Therefore, the evaporative cooling method should solve the following problems:

1, in a very short period of time to achieve the absolute evaporation of water, so that the humidity reached90%RHNeed to design excellent nozzle;

2. Adjust the water volume in real time according to the power of the turbine, the temperature, humidity and pressure in the turbine. It is necessary to maximize the humidity in the turbine and strictly control the water content of the turbine;

3. Strictly control water quality to prevent turbine blades from scaling;

The humidity measurement, control and protection system of the spray evaporative cooling device must be reliable, and the structure must be reasonable to ensure safety.

It can be seen from the above that a safe and reliable temperature and humidity monitoring system is particularly important, and the selection of temperature and humidity sensors is even more critical. The following recommend two reliable temperature and humidity sensors

（1) KOREAN SANHAN-HTW-211

HTW-211 based onHumiChip®The chip design is an accurate and reliable humidity measurement sensor module. The sensor outputs a temperature-compensated humidity value via a linear voltage, which can be directly connected to the sensor with aADCThe input is connected to a microcomputer. The temperature output is directlyNTCThermistor output resistance value can beADCThe input is directly connected to the microcomputer.

（2) Rozhonik-HC2A-S

（12) Standard universal temperature and humidity probe
（2) Supports humidity, temperature and dew point measurement
（3) Built-in data extraction and calibration history storage function
（4) With automatic error compensation and alarm function
（5) Measurement range:0-100%RH，-40-60℃
（6) Accuracy:±0.8%RH，±0.1℃
（7）2Road0-1VAnalog output andUARTDigital output
（8) Application: Secondary development of temperature and humidity products to ensure high precision and stability of measurement, temperature and humidity measurement and process control of industrial plants, temperature and humidity measurement of environmental test chambers, fermentation chambers, incubators, incubators, air-conditioned rooms, refrigerated cabinets, clean rooms, warehouses, museums, art galleries, archives, etc.