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Papers by Sergey Anisimov
Numerical analysis of selected evaporative exchangers with the Maisotsenko cycle
Energy Conversion and Management, 2014
ABSTRACT This paper describes numerical modeling of heat and mass transfer in five different exch... more ABSTRACT This paper describes numerical modeling of heat and mass transfer in five different exchangers utilizing the Maisotsenko cycle for indirect evaporative cooling. For this purpose, numerical models are developed based on the modified ε-NTU method to perform thermal calculations of the indirect evaporative cooling process, thus quantifying overall performance of considered heat exchangers. Numerical simulation reveals many unique features of considered devices, enabling an accurate prediction of their performance. The results of computer simulation showed high efficiency gains that are sensitive to various inlet conditions, and allow for estimation of optimum operating conditions, including suitable climatic zones for the proposed unit using.
Kierunki rozwoju wyparnego chłodzenia powietrza
Rynek Instalacyjny, 2012
Filtracja w urządzeniach bezpośredniego odparowania (Split, Multisplit)
Dry-coolery i pośrednie wieże chłodnicze. Rozwiązania poprawiające efektywność
Energooszczędne rozwiązania w wentylacji przemysłowej
International Journal of Heat and Mass Transfer, 2017
An accurate and efficient model based on the modified e-NTU method was developed for numerical si... more An accurate and efficient model based on the modified e-NTU method was developed for numerical simulations and analysis of coupled heat and mass transfer inside the counter-flow plate heat exchanger under frosting operating conditions. The proposed model was validated with experimental data. The successful comparison between simulated and experimental data indicates that the developed model is capable to predict adequately operating performance of the counter-flow plate heat exchanger under sub-zero outdoor air temperature conditions. Three active heat and mass transfer areas were established in a counter-flow plate heat exchanger equipped with bypass damper and face and bypass dampers. The detail analysis of these particular heat and mass transfer zones creation revealed the most probable variants of year-round operating conditions of the counter-flow heat exchanger. The implementation of the particular variant of heat and mass transfer depends upon the relations of the temperatures in two decisive zones on the return air channel surface (in the ''cold" and ''hot" zone) and the value of the inlet return airflow dew point temperature. It was established, that the most unfavourable operating conditions at sub-zero outdoor air temperature occur at the value of inlet return air dew point temperature equalled to 0°C. Unfortunately, such value of dew point temperature corresponds to the normal indoor air conditions in winter season. The values of critical outdoor temperatures were determined on the base of parametric frosting limits analysis conducted under different inlet return airflow conditions for different values of heat recovery efficiency of the counter-flow plate heat exchanger at different opening levels of face and bypass dampers. It was established, that the frost tends to take place with increasing temperature effectiveness of the heat exchanger. It was established, that the fully open bypass technique does not provide complete frost protection under sub-zero outdoor air temperature operating conditions.
Adaptacja istniejącego obiektu na potrzeby kliniki ginekologicznej i położniczej
Chłodnictwo i Klimatyzacja, 2015
Rozwiązania technologiczne poprawiające efektywność agregatów chłodniczych, Cz. 1
Chłodnictwo i Klimatyzacja, 2014
Filtracja powietrza w centralach klimatyzacyjnych
Chłodnictwo i Klimatyzacja, 2015
Systemy BMS w inteligentnych budynkach
Chłodnictwo i Klimatyzacja, 2015
Regulacja pracy systemów powietrzno-wodnych w okresie ciepłym
Chłodnictwo i Klimatyzacja, 2012
Numerical Analysis of Heat and Mass Transfer Processes Through the Maisotsenko Cycle
Efektywność wyparnego chłodzenia powietrza
The effect of internal leakage of air streams on effectiveness of the fixed-bed regenerator for fast switching cycle of its operation: experimental and numerical results
International Journal of Heat and Mass Transfer
Chłodnictwo i Klimatyzacja, 2013
Rozwiązania technologiczne w systemach klimatyzacji serwerowni. Wybrane przykłady
Wentylacja i klimatyzacja laboratoriów
Oszczędności energetyczne i ekonomiczne wynikające z zastosowania wymiennika wyparnego w klimatyzacji. Cz. 2
Zespolone systemy klimatyzacyjne i odsalające wodę morską Cz. 2
Wentylacja w kuchniach – okapy
Numerical analysis of selected evaporative exchangers with the Maisotsenko cycle
Energy Conversion and Management, 2014
ABSTRACT This paper describes numerical modeling of heat and mass transfer in five different exch... more ABSTRACT This paper describes numerical modeling of heat and mass transfer in five different exchangers utilizing the Maisotsenko cycle for indirect evaporative cooling. For this purpose, numerical models are developed based on the modified ε-NTU method to perform thermal calculations of the indirect evaporative cooling process, thus quantifying overall performance of considered heat exchangers. Numerical simulation reveals many unique features of considered devices, enabling an accurate prediction of their performance. The results of computer simulation showed high efficiency gains that are sensitive to various inlet conditions, and allow for estimation of optimum operating conditions, including suitable climatic zones for the proposed unit using.
Kierunki rozwoju wyparnego chłodzenia powietrza
Rynek Instalacyjny, 2012
Filtracja w urządzeniach bezpośredniego odparowania (Split, Multisplit)
Dry-coolery i pośrednie wieże chłodnicze. Rozwiązania poprawiające efektywność
Energooszczędne rozwiązania w wentylacji przemysłowej
International Journal of Heat and Mass Transfer, 2017
An accurate and efficient model based on the modified e-NTU method was developed for numerical si... more An accurate and efficient model based on the modified e-NTU method was developed for numerical simulations and analysis of coupled heat and mass transfer inside the counter-flow plate heat exchanger under frosting operating conditions. The proposed model was validated with experimental data. The successful comparison between simulated and experimental data indicates that the developed model is capable to predict adequately operating performance of the counter-flow plate heat exchanger under sub-zero outdoor air temperature conditions. Three active heat and mass transfer areas were established in a counter-flow plate heat exchanger equipped with bypass damper and face and bypass dampers. The detail analysis of these particular heat and mass transfer zones creation revealed the most probable variants of year-round operating conditions of the counter-flow heat exchanger. The implementation of the particular variant of heat and mass transfer depends upon the relations of the temperatures in two decisive zones on the return air channel surface (in the ''cold" and ''hot" zone) and the value of the inlet return airflow dew point temperature. It was established, that the most unfavourable operating conditions at sub-zero outdoor air temperature occur at the value of inlet return air dew point temperature equalled to 0°C. Unfortunately, such value of dew point temperature corresponds to the normal indoor air conditions in winter season. The values of critical outdoor temperatures were determined on the base of parametric frosting limits analysis conducted under different inlet return airflow conditions for different values of heat recovery efficiency of the counter-flow plate heat exchanger at different opening levels of face and bypass dampers. It was established, that the frost tends to take place with increasing temperature effectiveness of the heat exchanger. It was established, that the fully open bypass technique does not provide complete frost protection under sub-zero outdoor air temperature operating conditions.
Adaptacja istniejącego obiektu na potrzeby kliniki ginekologicznej i położniczej
Chłodnictwo i Klimatyzacja, 2015
Rozwiązania technologiczne poprawiające efektywność agregatów chłodniczych, Cz. 1
Chłodnictwo i Klimatyzacja, 2014
Filtracja powietrza w centralach klimatyzacyjnych
Chłodnictwo i Klimatyzacja, 2015
Systemy BMS w inteligentnych budynkach
Chłodnictwo i Klimatyzacja, 2015
Regulacja pracy systemów powietrzno-wodnych w okresie ciepłym
Chłodnictwo i Klimatyzacja, 2012
Numerical Analysis of Heat and Mass Transfer Processes Through the Maisotsenko Cycle
Efektywność wyparnego chłodzenia powietrza
The effect of internal leakage of air streams on effectiveness of the fixed-bed regenerator for fast switching cycle of its operation: experimental and numerical results
International Journal of Heat and Mass Transfer
Chłodnictwo i Klimatyzacja, 2013
Rozwiązania technologiczne w systemach klimatyzacji serwerowni. Wybrane przykłady
Wentylacja i klimatyzacja laboratoriów
Oszczędności energetyczne i ekonomiczne wynikające z zastosowania wymiennika wyparnego w klimatyzacji. Cz. 2
Zespolone systemy klimatyzacyjne i odsalające wodę morską Cz. 2
Wentylacja w kuchniach – okapy