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Increasing the efficiency of heat pump systems primarily used for heat supply to buildings is an important topic. This is especially true for systems constructed according to non-standard schemes and which use low-grade heat from various sources that are rarely considered for these purposes. Such studies require special, often expensive, data acquisition systems. In this paper, a low-cost computer-based monitoring system is presented. The monitoring system incorporates solutions which are new or seldom used. It is shown that modern semiconductor thermistors can replace commonly used platinum temperature sensors and thermocouples. A proposal for processing frequency output signals from sensors through an analog-to-digital converter and a way to reduce the number of required input channels are described. The monitoring system allows optimization of various types of heat-pump-based installations. The system has been used for quite a long time to monitor the operation of the heat pump installation using low-grade heat from a surface watercourse. With its help, the feasibility of using the previously proposed submersible floating heat exchanger is justified and the optimal scheme for its placement in the watercourse is determined.
Valeriy Kharchenko; Arseniy Sychov; Pasquale Luigi De Angelis; Ugo Fiore. Monitoring System of a Heat Pump Installation for Heating a Rural House Using Low-grade Heat from a Surface Watercourse. Journal of Sensor and Actuator Networks 2020, 9, 11 .
AMA StyleValeriy Kharchenko, Arseniy Sychov, Pasquale Luigi De Angelis, Ugo Fiore. Monitoring System of a Heat Pump Installation for Heating a Rural House Using Low-grade Heat from a Surface Watercourse. Journal of Sensor and Actuator Networks. 2020; 9 (1):11.
Chicago/Turabian StyleValeriy Kharchenko; Arseniy Sychov; Pasquale Luigi De Angelis; Ugo Fiore. 2020. "Monitoring System of a Heat Pump Installation for Heating a Rural House Using Low-grade Heat from a Surface Watercourse." Journal of Sensor and Actuator Networks 9, no. 1: 11.
This paper considers the thermo physical principles of cogeneration technology with the use of silicon photocells working with a low concentration of solar radiation. The efficiency of the technology is enhanced by the use of photocells at a relatively high temperature and cooling with liquid, which makes it possible to obtain high-potential heat and transmit it to the heat carrier in counter flow mode of the coolant. Transportation of heat energy to a stationary storage system is realized under the influence of the pressure head formed by the temperature gradient along the height of the circulation circuit. A mathematical model is proposed for calculating the thermal energy of linear photovoltaic modules, taking into account the experimentally determined electric efficiency of commercially available silicon photocells.
Peter Nesterenkov; Valeriy Kharchenko. Thermo Physical Principles of Cogeneration Technology with Concentration of Solar Radiation. Advances in Big Data 2018, 117 -128.
AMA StylePeter Nesterenkov, Valeriy Kharchenko. Thermo Physical Principles of Cogeneration Technology with Concentration of Solar Radiation. Advances in Big Data. 2018; ():117-128.
Chicago/Turabian StylePeter Nesterenkov; Valeriy Kharchenko. 2018. "Thermo Physical Principles of Cogeneration Technology with Concentration of Solar Radiation." Advances in Big Data , no. : 117-128.
For estimation and prediction of PV solar cell parameters there was suggested and developed the methodology based on acceptance for consideration the important peculiarity internal photoeffect which mind-set in the fact that photon of sunlight can form only one electron-hole pair despite of its energy level and that the solar radiation is characterized by spectral distribution of photons of various length of a wave. The main point of the methodology is consideration the process of electron-hole pairs formation under influence of photons of given site of solar spectrum with semiconductor (silicon) used as solar cell substrate. Some results of this kind calculation are represented in the paper.
Valeriy Kharchenko; Boris Nikitin; Pavel Tikhonov; Vladimir Panchenko; Pandian Vasant. Evaluation of the Silicon Solar Cell Parameters. Intelligent Computing & Optimization 2018, 328 -336.
AMA StyleValeriy Kharchenko, Boris Nikitin, Pavel Tikhonov, Vladimir Panchenko, Pandian Vasant. Evaluation of the Silicon Solar Cell Parameters. Intelligent Computing & Optimization. 2018; ():328-336.
Chicago/Turabian StyleValeriy Kharchenko; Boris Nikitin; Pavel Tikhonov; Vladimir Panchenko; Pandian Vasant. 2018. "Evaluation of the Silicon Solar Cell Parameters." Intelligent Computing & Optimization , no. : 328-336.
A. T. Belenov; Yu. V. Daus; S. A. Rakitov; I. V. Yudaev; V. V. Kharchenko. The experience of operation of the solar power plant on the roof of the administrative building in the town of Kamyshin, Volgograd oblast. Applied Solar Energy 2016, 52, 105 -108.
AMA StyleA. T. Belenov, Yu. V. Daus, S. A. Rakitov, I. V. Yudaev, V. V. Kharchenko. The experience of operation of the solar power plant on the roof of the administrative building in the town of Kamyshin, Volgograd oblast. Applied Solar Energy. 2016; 52 (2):105-108.
Chicago/Turabian StyleA. T. Belenov; Yu. V. Daus; S. A. Rakitov; I. V. Yudaev; V. V. Kharchenko. 2016. "The experience of operation of the solar power plant on the roof of the administrative building in the town of Kamyshin, Volgograd oblast." Applied Solar Energy 52, no. 2: 105-108.
Yu. V. Daus; I. V. Yudaev; V. V. Kharchenko. Evaluation of solar radiation intensity for the territory of the Southern Federal District of Russia when designing microgrids based on renewable energy sources. Applied Solar Energy 2016, 52, 151 -156.
AMA StyleYu. V. Daus, I. V. Yudaev, V. V. Kharchenko. Evaluation of solar radiation intensity for the territory of the Southern Federal District of Russia when designing microgrids based on renewable energy sources. Applied Solar Energy. 2016; 52 (2):151-156.
Chicago/Turabian StyleYu. V. Daus; I. V. Yudaev; V. V. Kharchenko. 2016. "Evaluation of solar radiation intensity for the territory of the Southern Federal District of Russia when designing microgrids based on renewable energy sources." Applied Solar Energy 52, no. 2: 151-156.