QUYOSH QURILMALI VA ISSIQLIK NASOSLI AVTONOM ISSIQXONANI ISSIQLIK BALANSINI TADQIQ QILISH

Admin bo'lib kirish (www.admin.slib.uz)

Tizim sinov (TEST) rejimida ishlamoqda! Murojat uchun @slib_support

Eski talqinga o'tish link

20 август 2025

Asosiy til:O'zbek

QUYOSH QURILMALI VA ISSIQLIK NASOSLI AVTONOM ISSIQXONANI ISSIQLIK BALANSINI TADQIQ QILISH

Fan yo'nalishi:

68a5545e5dedc.pdf

PDF

MUQOBIL ENERGETIKA

Maqola chop etish see more

MAQOLA ANNOTATSIYASI

Abstract. Introduction. Research is being conducted worldwide to develop an autonomous energy supply system based on renewable energy sources to improve the energy efficiency of modern greenhouses in the conditions of a sharply continental climate. In this direction, scientific research is being conducted to develop mathematical models and energy balance equations to determine the optimal design and orientation of greenhouses taking into account the climatic conditions of the area where they are located, as well as to improve and study the efficiency of solar energy-based greenhouse energy supply systems. Methods and materials. The temperature inside a stand-alone greenhouse varies depending on a number of external and internal factors. These factors depend on the amount of solar radiation penetrating through the walls and ceiling of the greenhouse, the heat source operating on natural fuel and electricity, lighting, the amount of natural ventilation and air infiltration, the amount of structural heat loss, the amount of heat loss through the soil, and the amount of heat consumed by the plants. Results. The heat load of a gable greenhouse with a useful area of 50 m2, located in the city of Karshi, for the period from November 15, 2023 to March 15, 2024 was determined taking into account changes in ambient temperature, solar radiation and heat loss in the greenhouse. According to the results, it was found that during the heating season, the greenhouse consumes 14,800 kWh of thermal energy. Of this, 11,160 kWh of thermal energy was generated by a heat pump, 3,160 kWh by a solar thermal collector, 400 kWh by a hot water boiler, and the rest by solar radiation Conclusion. During the heating season, 1835 m3 of natural gas were used in the greenhouses and 2260 t.e. fuel was saved for traditional heating devices, and when burning natural gas, the amount of CO2 emissions was reduced by 3395 kg. The economic efficiency indicators of the greenhouse energy supply system were estimated. Accordingly, the net present value is 138.7 million. It was determined that the internal rate of return is 10%, the profit index is 2.03, the payback period is 6.4 years.

MUALIFLAR

Teglar

# моделирование# modeling# тепловой насос# solar radiation# modellashtirish# тепловой баланс# heat balance# температура окружающей среды# ambient temperature# issiqlik balansi# quyosh radiatsiyasi# issiqlik nasosi# avtonom issiqxona# atrof-muhit harorati# quyosh issiqlik kollektori# автономная теплица# солнечная радиация# солнечный тепловой коллектор# autonomous greenhouse# solar thermal collector# heat pump

Maqolani baholang

0

0 ta

Maqola idintifikatorlari

ROI:

https://eroi.uz/11.0032/A0825-0006

DOI:

Mavjud emas

Foydalanilgan adabiyotlar

https://www.globenewswire.com/newsrelease/2023/12/11/2794082/28124/en/SmartGreenhouse-Global-Strategic-Industry-Report-2023-2030-AgTech-Emerges-as-NewBuzzword-in-Agricultural-Growing-Adoption-of-IoT-Presents-Vast-Opportunities.html

Xu D., Li Y. Et al. Effects of orientation and structure on solar radiation interception in Chinese solar greenhouse. PLOS ONE, 2020, 15(11):e0242002, pp.1-17.

Rasakhodzhaev B.S., Akhmadjanov U.Z., Boboeva M.O., Mashrapova I.R., Tokonova T.S.. Investigation of solar greenhouses with transformable (adjustable) body depending on indoor and outdoor air temperature. IOP Conf. Series: Earth and Environmental Science. 2022, 1070, 012030, pp. 1-9.

Akhatov J.S., Halimov A.S. Numerical calculations of heat engineering parameters of a solar greenhouse dryer, Applied Solar Energy, 2015, Vol.51, No.2, pp. 107-111.

Santos B.M. et al. A solar collector design procedure for crop drying. Brazilian Journal of Chemical Engineering. Vol. 22, No. 02, 2005, pp. 277 – 284

Tataraki K.G. at el. Combined Cooling Heating and Power systems in greenhouses. Grassroots and retrofit design. Energy, 2019, 189(5):116283

Nems A., Nems M. and Swider K. Analysis of the Possibilities of Using a Heat Pump for Greenhouse Heating in Polish Climatic Conditions—A Case Study. Sustainability, 2018, 10, 3483; doi:10.3390/su10103483

Asgari N. at el. Energy Modeling and Techno-Economic Feasibility Analysis of Greenhouses for Tomato Cultivation Utilizing the Waste Heat of Cryptocurrency Miners. Energies 2023, 16, 1331. https://doi.org/10.3390/en16031331

Bakker J.C., Bot G.P., Challa H., Van de Braak N.J. Greenhouse Climate Control: An Integrated Approach; Wageningen Academic Publishers: Wageningen, The Netherlands, 1995; ISBN 978-90-8686-501-7

Rutkowski K., Wojciech J.. Reducing heat consumption in greenhouses. In˙zyniera Rolnicza 2008, 9, pp. 249–255.

Maslak K.. Thermal Energy Use in Greenhouses. Licentiate Thesis Swedish University of Agricultural Sciences, Alnarp 2015, pp.1-68

Dimitropoulou, A.-M.N. Maroulis, V.Z.; Giannini, E.N. A Simple and Effective Model for Predicting the Thermal Energy Requirements of Greenhouses in Europe. Energies 2023, 16, 6788.https://doi.org/10.3390/en16196788

Zabeltitz Ch. Integrated Greenhouse Systems for Mild Climates. Springer-Verlag Berlin Heidelberg 2011. ISBN 978-3-642-14581-0

Tunc M., Venart S., Sollows K.. Bivalent (hybrid) heat pumpoil heating systems for greenhouses. J Heat Recover Syst, 1985;5(6):483–91.