

Articles
by
Murat Kunelbayev 
Total Records (
5 ) for
Murat Kunelbayev 





Seitkazy Keshuov
,
Rashit Omarov
,
Amanzhol Tokmoldayev
,
Dauren Omar
,
Murat Kunelbayev
and
Sabit Amirseit


The dynamics of total consumption of electric and thermal energy in agriculture and in the whole
country is considered in the study. The analysis of developments in the field of solar and bioenergetics their
current state and possible directions of research on the use of RES in livestock production is given. A
mathematical model of a hybrid energy supply system based on a photosolarbio energetic installation is
developed which makes it possible to reduce the energy intensity of agricultural production. Experimental
results of studies of the effectiveness of the proposed hydro breeding system are presented. 




Rashit Omarov
,
SeitkazyKeshuov
,
Dauren Omar
,
Asan Baibolov
,
Amanzhol Tokmoldayev
and
Murat Kunelbayev


This study deals with the study and calculation of the thermal conductivity of the tube solar collector
with heat pump. The basic equations describing the energy balance of the flat solar collector with the heat
pump. This study discusses the calculation of the amount of heat in the heat pump in the combined system of
solar heating. A heat balance equation of the heat pump in the integrated system of solar heating method for
computing was developed using the techniques above, determine the amount of heat and energy balance
equation. The results show that the arrangement of the compressor in the evaporator zone of impact. The
evaporator absorbs the heat emitted from the surface of the compressor which is added to the main flow. In view
of the fact that the temperature difference between the compressor stack (about 800°C) and the evaporator
(about 180°C) is 600°C strand it suggests that the main flow is radioactive heat transfer between the surfaces.
As is known in the heat radiation is eliminated between the compressor and the evaporator by setting the
screen there between. Accordingly, there has been some decrease in performance. However, even under these
conditions the compressor does not overheat because its convective cooling is maintained. Energy conversion
efficiency (KPI) are from 2.54.5 units. 




Rashit Omarov
,
Seitkazy Keshuov
,
Dauren Omar
,
Murat Kunelbayev
and
Sabit Amirseit


Solar Photovoltaic Modules (SPM) are popular in agriculture. For a lot of small farms, the main source
of electrical energy is electric generators driven by Internal Combustion Engines (ICE), since installation of
electrical networks is economically unprofitable. In these conditions, SPM are economically and
environmentally promising, since it does not require the consumption of fuels and lubricants does not harm the
environment. Determination of the main SPM operating parameters in 2 modes is considered in this research.
In the cases when the panels oriented towards the sun (tracking mode) and in a stationary state with orientation
to the south (without tracking mode). The dependences of current, voltage and power on time and density of
solar radiation were measured. Accordingly, the voltage and current of Transportable Photovoltaic Unit (TPU),
the charging current and the voltage of the batteries, the voltage at the output of the inverter, the temperature
and humidity of the outside air and the electrical energy consumption by the electric receivers were recorded.
The study of the TPU operation showed that the mode of orientation to the sun increases the daytime power
generation by 25, …, 33% in comparison with the fixed installation of Solar Panels (SP). The analysis showed
the discrepancy between SP passport data and the experimental results. The decrease in electricity generation
was 14% compared to the expected estimates. 




Yedilkhan Amirgaliyev
,
Murat Kunelbayev
,
Aliya Kalizhanova
,
Didar Yedilkhan
,
Omirlan Auelbekov
,
Nazbek Kataev
and
Ainur Kozbakova


This study deals with the study and the calculation of the coefficient of capture of solar radiation of
a flat solar collector. The basic equations describing the energy balance of the flat solar collector. It is known
that the surface of the transparent insulation the heat coming down: the flow of direct sunlight, the flow of the
Sun’s rays reflected from the mirrors and the flow of the scattered (diffuse) radiation from the sky, from the
surroundings which are absorbed by the individual layers of the heating surface. Compiled energy balance
equation, a single layer of the heat element. Because compiled equation for steady state surface density of
captured radiation is equal to the surface density of the heat flow withdrawn from the working medium of the
receiver element (coolant) or the average temperature of the latter does not differ from the ambient temperature.
In the above case, capture ratio is plant efficiency. The equation shows that the surface density of the heat
flow, coolant withdrawn from the receiver can be calculated as the surface density of the trapped radiation
minus the conditional heat loss and efficient heat consumption for heating system. Flow captured radiation is
not dependent on the heat capacity of the system. Through analysis and optimization of the solar energy
collector carried on a flat cavity with a modified receiver with regard to the content of incident solar radiation. 




Yerzhan Belyaev
,
Diaz Baiseitov
,
Murat Kunelbayev
,
Amantur Umarov
and
Maxatbek Satymbekov


Calculations of exergy (heat loss) were carried out on different types of combined solar collectors and
heat pump systems to determine the most appropriate version of the heating and hot water needs in Kazakhstan
in harsh climatic conditions. To achieve this goal, a mathematical model was applied, representing a set of
formulas for the sequential elementary calculation of temperature data from a solar heating system. An algorithm
was developed to calculate the heat loss of both the solar collector system and the solarassisted heat pump.
The significance and importance of the achieved results is high, since, the developed and used algorithm allows
detecting inefficient components of the solar heating system. In cold climatic conditions, the exterior
performance of the solar collector ranges from 527%. Capacitor efficiency ranges between 915%. The least
effective is the compressor, the exergy values of which vary within 1088%. 





