Образец оформления рукописи научной статьи

UDC 662. 997
AUTOMATIC CONTROL AND REGULATION
TEMPERATURE-HUMID REGIME OF SOLAR GREENHOUSE


Faysiev T.A.
Ph.d ., associate professor of the department of heat power engineering,
Karshi engineering and economic institute
Karshi, Uzbekistan
Sadykov Zh.D.
senior lecturer of the department of heat power engineering,
Fayzullaev I.M.
senior lecturer of the department of heat power engineering,
Khidirov M.M.
lecturer of the department of heat power engineering,
Ruzikulov G.Yu.
lecturer of the department of heat power engineering,


As is known that the solar greenhouse is a complex object with distributed parameters, in which heat exchanged and mass transfer processes simultaneously proceed [1].
The creation and implementation of effective automatic control systems and control of the temperature and humidity regime of solar greenhouse requires solving the issue of developing a mathematical model of the heat-process process of mass transfer occurring in the construction as an automatic control object.
The definition of the dynamic characteristics of the object can be achieved either experimental or by the analytical method, we have chosen an analytical method based on the following considerations:
a) None of the functioning and recommended greenhouses still do not even have non-automatic devices to maintain the necessary microclimate, forced heating ventilation;
b) the number of types of greenhouse buildings is very large, and the typical project is missing (it is built mainly by individual order) and buildings have substantial differences (according to the designs, according to the used batteries of heat and t.d.). These differences largely determine the dynamics of the regulatory object; c) Analytical method allows to obtain dynamic characteristics of the developed, but not yet constructed heat, and therefore, a microclimate controller can be constructed simultaneously with the design of the structure.
Dynamic characteristics of the greenhouses will be found in the form of gear ratios. Such a task is for the first time applied to the solar greenhouse was solved in [3]. However, in this work, there are no such important parameter of the microclimate as humidity, in which to simplify the output and lowering the degree of the differential equation describing the thermo-exchange processes of the greenhouse, is considered as a two-axis temperature control object. The greenhouses are not taken into account as:

1. Solar greenhouse is a construction with intense release of water vapor, it depends on the internal temperature;

2. The construction has a large surface of the evaporation of water from the soil coming in relation to the microclimate from the outside (watering and others.);
3. In the analysis of the dynamics of the temperature regime of the greenhouse, it is not enough to take into account only the heat accumulating properties of the rod battery and inner air, as is administered in [2].
In view of the fact that the order of the differential equation describing the air temperature in the structure is determined by the number of heat accumulating substances, the order of the equation for the greenhouse of this design of our case should be equal to six (if we take into account the heat capacity of the inner air, the water and reinforcement battery, the soil, vegetable ¬ Wheel and translucent fence).
In the output of the differential equations of the regulatory object, we will take the following simplifications:
a) Solar greenhouse is an object with distributed parameters. But, as the analysis showed, it can be described by differential equations in ordinary derivatives in articulation with the link of pure delay. Since the time in comparing the transition process time of the object is an insignificant share, it can be neglected ( min.,