Automation of technological and business processes

ISSN-print: 2312-3125
ISSN-online: 2312-931X
ISO: 26324:2012
Архiви

THE MODEL FOR POWER EFFICIENCY ASSESSMENT OF CONDENSATION HEATING INSTALLATIONS

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D. Kovalchuk
A. Mazur
S. Hudz

Анотація

The main part of heating systems and domestic hot water systems are based on the natural gas boilers. For
increasing the overall performance of such heating system the condensation gas boilers was developed and are used. However
even such type of boilers don't use all energy which is released from a fuel combustion. The main factors influencing the
lowering of overall performance of condensation gas boilers in case of operation in real conditions are considered. The
structure of the developed mathematical model allowing estimating the overall performance of condensation gas boilers
(CGB) in the conditions of real operation is considered. Performace evaluation computer experiments of such CGB during a
heating season for real weather conditions of two regions of Ukraine was made. Graphic dependences of temperature
conditions and heating system effectiveness change throughout a heating season are given. It was proved that normal CGB
does not completely use all calorific value of fuel, thus, it isn't effective. It was also proved that the efficiency of such boilers
significantly changes during a heating season depending on weather conditions and doesn't reach the greatest possible value.
The possibility of increasing the efficiency of CGB due to hydraulic division of heating and condensation sections and use of
the vapor-compression heat pump for deeper cooling of combustion gases and removing of the highest possible amount of
thermal energy from them are considered. The scheme of heat pump connection to the heating system with a convenient gas
boiler and the separate condensation economizer allowing to cool combustion gases deeply below a dew point and to warm up
the return heat carrier before a boiler input is provided. The technological diagram of the year-round use of the heat pump for
hot water heating after the end of heating season, without gas use is offered.

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Як цитувати
Kovalchuk, D., Mazur, A., & Hudz, S. (2017). THE MODEL FOR POWER EFFICIENCY ASSESSMENT OF CONDENSATION HEATING INSTALLATIONS. Automation of Technological and Business Processes, 9(3). https://doi.org/10.15673/atbp.v9i3.715
Розділ
ПИТАННЯ ТЕОРІЇ, МЕТОДИ ТА АЛГОРИТМИ ЕФЕКТИВНОГО АВТОМАТИЧНОГО УПРАВЛІННЯ ОБ’ЄКТАМИ ХІМІКО-ТЕХНОЛОГІЧНОГО ТИПУ

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