Energy Saving System Based on Heat Pump for Maintain Microclimate of the Agricultural Objects

At agricultural facilities, the main attention is paid to the formation and maintenance of their microclimate parameters, and mechanization of storage processes. As world experience shows, it is necessary to develop and implement energy-saving systems and the use of renewable energy sources. The authors have developed energy-saving systems based on the heat pump, with upgraded electrical regulators. The developed system (patent 100873), uses thermoelectric elements and a low-potential energy source, to effectively maintain the temperature parameters of the microclimate during long-term storage of potatoes, but it requires a large amount of electricity consumption (30 to 35 kW), so the authors have developed an energy-saving system based on a heat pump (patent 123909). The temperature regime is achieved by using a thermoelectric cooler-heater and an electric heater. The humidifier allows for maintaining the necessary relative air humidity.

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Management of air flows inside steel silo during grain storage

BIO Web of Conferences ◽

10.1051/bioconf/20201700108 ◽

2020 ◽

Vol 17 ◽

pp. 00108

Author(s):

I. A. Kechkin ◽

V.A. Ermolaev ◽

A.I. Romanenko ◽

V.V. Tarakanova ◽

K.D. Buzetti

Keyword(s):

Temperature Difference ◽

Air Humidity ◽

Wheat Grain ◽

Long Term Storage ◽

Relative Air Humidity ◽

Condensate Formation ◽

Effects Of Temperature ◽

Condensed Moisture ◽

Term Storage

A study was conducted concerning effects of temperature and relative air humidity during long-term storage of wheat grain in a steel silo. The study was aimed at identifying the possibility of condensed moisture appearing under the silo roof. The probable periods of condensate in the space under the silo roof depending on the temperature difference inside and outside the silo have been determined. Some ways to prevent the condensate formation are proposed in the paper.

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A SOLAR ENERGY SYSTEM WITH A DUAL-SOURCE HEAT PUMP AND LONG-TERM STORAGE

Sun: Mankind's Future Source of Energy ◽

10.1016/b978-1-4832-8407-1.50089-1 ◽

1978 ◽

pp. 463-470b

Author(s):

Edwin Hewitt ◽

K. Raman

Keyword(s):

Solar Energy ◽

Heat Pump ◽

Energy System ◽

Long Term Storage ◽

Dual Source ◽

Term Storage

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Deep Reinforcement Learning for Energy Microgrids Management Considering Flexible Energy Sources

EPJ Web of Conferences ◽

10.1051/epjconf/201921701016 ◽

2019 ◽

Vol 217 ◽

pp. 01016 ◽

Cited By ~ 2

Author(s):

Nikita Tomin ◽

Alexey Zhukov ◽

Alexander Domyshev

Keyword(s):

Reinforcement Learning ◽

Electricity Consumption ◽

Energy Sources ◽

Sequential Decision ◽

Time Step ◽

Long Term Storage ◽

Decision Making Problem ◽

Short And Long Term ◽

Term Storage

The problem of optimally activating the flexible energy sources (short- and long-term storage capacities) of electricity microgrid is formulated as a sequential decision making problem under uncertainty where, at every time-step, the uncertainty comes from the lack of knowledge about future electricity consumption and weather dependent PV production. This paper proposes to address this problem using deep reinforcement learning. To this purpose, a specific deep learning architecture has been used in order to extract knowledge from past consumption and production time series as well as any available forecasts. The approach is empirically illustrated in the case of off-grid microgrids located in Belgium and Russia.

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Dependence of fat acidity value on wheat grain storage conditions

BIO Web of Conferences ◽

10.1051/bioconf/20201700107 ◽

2020 ◽

Vol 17 ◽

pp. 00107

Author(s):

I. A. Kechkin ◽

V. A. Ermolaev ◽

M. V. Ivanov ◽

A. I. Romanenko ◽

E. A. Gurkovskaya

Keyword(s):

Storage Temperature ◽

Storage Period ◽

Acid Value ◽

Storage Conditions ◽

Air Humidity ◽

Wheat Grain ◽

Storage Duration ◽

Long Term Storage ◽

Relative Air Humidity

The article presents the dependence of the fat acidity value (FAV) on the values of humidity and temperature, the relationship between the storage duration for wheat grain and FAV. To establish the expiration date of wheat grain during long-term storage, the author of the article considered the fat acid value (FAV) in mg of KOH. Storage temperature and relative air humidity in a desiccator affect the change (growth) of fat acidity value. The greatest changes occurred at 6th, 7th and 8th months of storage at a relative air humidity of more than 65 % and temperatures above 20 °C. At a storage temperature of 10 °C, in all cases the growth of FAV remained insignificant and was within the limits of determination accuracy. It is noted that when the relative humidity was below 60 %, while the temperature was the same as in the previous case, the FAV of wheat grain was practically unchanged through the 6-month storage period.

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Modelling of Moisture Movement in Wood during Outdoor Storage

Nonlinear Analysis Modelling and Control ◽

10.15388/na.2001.6.1.15210 ◽

2001 ◽

Vol 6 (2) ◽

pp. 3-14 ◽

Cited By ~ 23

Author(s):

R. Baronas ◽

F. Ivanauskas ◽

I. Juodeikienė ◽

A. Kajalavičius

Keyword(s):

Experimental Data ◽

Finite Difference ◽

Climatic Conditions ◽

Two Dimensional ◽

Moisture Movement ◽

Finite Difference Technique ◽

Long Term Storage ◽

Space Formulation ◽

Term Storage

A model of moisture movement in wood is presented in this paper in a two-dimensional-in-space formulation. The finite-difference technique has been used in order to obtain the solution of the problem. The model was applied to predict the moisture content in sawn boards from pine during long term storage under outdoor climatic conditions. The satisfactory agreement between the numerical solution and experimental data was obtained.

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