METHODOLOGICAL APPROACHES TO DETERMINING THE AIR CONDITIONING SYSTEMS COOLING CAPACITY AT VARYING CLIMATIC CONDITIONS
One of the most attractive reserves for improving the energy efficiency of air conditioning systems is to ensure the operation of refrigeration compressors in nominal or close to nominal modes by selecting a rational design heat load and distributing it within its design value according to the behav...
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| Format: | Article |
| Language: | English |
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National Aerospace University «Kharkiv Aviation Institute»
2019-08-01
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| Series: | Авіаційно-космічна техніка та технологія |
| Subjects: | |
| Online Access: | http://nti.khai.edu/ojs/index.php/aktt/article/view/839 |
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| author | Євген Іванович Трушляков Андрій Миколайович Радченко Микола Іванович Радченко Сергій Георгійович Фордуй Сергій Анатолійович Кантор Богдан Сергійович Портной |
| author_facet | Євген Іванович Трушляков Андрій Миколайович Радченко Микола Іванович Радченко Сергій Георгійович Фордуй Сергій Анатолійович Кантор Богдан Сергійович Портной |
| author_sort | Євген Іванович Трушляков |
| collection | DOAJ |
| description | One of the most attractive reserves for improving the energy efficiency of air conditioning systems is to ensure the operation of refrigeration compressors in nominal or close to nominal modes by selecting a rational design heat load and distributing it within its design value according to the behavior of the current heat load under variable current climatic conditions to provide the maximum or close to maximum annual cooling capacity generation according to cooling duties of air conditioning. In the general case, the overall range of current thermal loads of any air conditioning system includes a range of unstable loads associated with the precooling of ambient air with significant fluctuations in cooling capacity according with current climatic conditions, and a relatively stable range of cooling capacity consumed to further reduce air temperature from a certain threshold temperature to the final outlet temperature. It is quite obvious that a stable range of heat load can be ensured within operating a conventional compressor in a mode close to the nominal mode while precooling the ambient air with significant fluctuations in heat load requires regulation of the cooling capacity through the use of a variable speed compressor. Thus, in response of the behavior of the change in current heat loads, any air conditioning system, whether the central air-conditioning system with its heat procession in a central air conditioner, or a combination thereof with a local recirculation system of indoor air, essentially consists of two subsystems: pre-cooling the ambient air and then cooling it to the set point temperature. The proposed method of distribution of design heat load depending on the behavior of the current heat load is useful for the rational design of central air conditioning systems and their combined versions with the local air conditioning system. |
| first_indexed | 2024-03-12T08:54:59Z |
| format | Article |
| id | doaj.art-87a9d79d239f4a6f93ec3c9d3a00f295 |
| institution | Directory Open Access Journal |
| issn | 1727-7337 2663-2217 |
| language | English |
| last_indexed | 2024-03-12T08:54:59Z |
| publishDate | 2019-08-01 |
| publisher | National Aerospace University «Kharkiv Aviation Institute» |
| record_format | Article |
| series | Авіаційно-космічна техніка та технологія |
| spelling | doaj.art-87a9d79d239f4a6f93ec3c9d3a00f2952023-09-02T16:08:13ZengNational Aerospace University «Kharkiv Aviation Institute»Авіаційно-космічна техніка та технологія1727-73372663-22172019-08-0107717510.32620/aktt.2019.7.09882METHODOLOGICAL APPROACHES TO DETERMINING THE AIR CONDITIONING SYSTEMS COOLING CAPACITY AT VARYING CLIMATIC CONDITIONSЄвген Іванович Трушляков0Андрій Миколайович Радченко1Микола Іванович Радченко2Сергій Георгійович Фордуй3Сергій Анатолійович Кантор4Богдан Сергійович Портной5Національний університет кораблебудування ім. адмірала Макарова, МиколаївНаціональний університет кораблебудування ім. адмірала Макарова, МиколаївНаціональний університет кораблебудування ім. адмірала Макарова, МиколаївPepsiCo, Inc., CTS ESSA, КиївПАТ "Завод "Екватор", МиколаївНаціональний університет кораблебудування ім. адмірала Макарова, МиколаївOne of the most attractive reserves for improving the energy efficiency of air conditioning systems is to ensure the operation of refrigeration compressors in nominal or close to nominal modes by selecting a rational design heat load and distributing it within its design value according to the behavior of the current heat load under variable current climatic conditions to provide the maximum or close to maximum annual cooling capacity generation according to cooling duties of air conditioning. In the general case, the overall range of current thermal loads of any air conditioning system includes a range of unstable loads associated with the precooling of ambient air with significant fluctuations in cooling capacity according with current climatic conditions, and a relatively stable range of cooling capacity consumed to further reduce air temperature from a certain threshold temperature to the final outlet temperature. It is quite obvious that a stable range of heat load can be ensured within operating a conventional compressor in a mode close to the nominal mode while precooling the ambient air with significant fluctuations in heat load requires regulation of the cooling capacity through the use of a variable speed compressor. Thus, in response of the behavior of the change in current heat loads, any air conditioning system, whether the central air-conditioning system with its heat procession in a central air conditioner, or a combination thereof with a local recirculation system of indoor air, essentially consists of two subsystems: pre-cooling the ambient air and then cooling it to the set point temperature. The proposed method of distribution of design heat load depending on the behavior of the current heat load is useful for the rational design of central air conditioning systems and their combined versions with the local air conditioning system.http://nti.khai.edu/ojs/index.php/aktt/article/view/839кондиціюванняпроектна холодопродуктивністьтеплове навантаженнярічне виробництво холоду |
| spellingShingle | Євген Іванович Трушляков Андрій Миколайович Радченко Микола Іванович Радченко Сергій Георгійович Фордуй Сергій Анатолійович Кантор Богдан Сергійович Портной METHODOLOGICAL APPROACHES TO DETERMINING THE AIR CONDITIONING SYSTEMS COOLING CAPACITY AT VARYING CLIMATIC CONDITIONS Авіаційно-космічна техніка та технологія кондиціювання проектна холодопродуктивність теплове навантаження річне виробництво холоду |
| title | METHODOLOGICAL APPROACHES TO DETERMINING THE AIR CONDITIONING SYSTEMS COOLING CAPACITY AT VARYING CLIMATIC CONDITIONS |
| title_full | METHODOLOGICAL APPROACHES TO DETERMINING THE AIR CONDITIONING SYSTEMS COOLING CAPACITY AT VARYING CLIMATIC CONDITIONS |
| title_fullStr | METHODOLOGICAL APPROACHES TO DETERMINING THE AIR CONDITIONING SYSTEMS COOLING CAPACITY AT VARYING CLIMATIC CONDITIONS |
| title_full_unstemmed | METHODOLOGICAL APPROACHES TO DETERMINING THE AIR CONDITIONING SYSTEMS COOLING CAPACITY AT VARYING CLIMATIC CONDITIONS |
| title_short | METHODOLOGICAL APPROACHES TO DETERMINING THE AIR CONDITIONING SYSTEMS COOLING CAPACITY AT VARYING CLIMATIC CONDITIONS |
| title_sort | methodological approaches to determining the air conditioning systems cooling capacity at varying climatic conditions |
| topic | кондиціювання проектна холодопродуктивність теплове навантаження річне виробництво холоду |
| url | http://nti.khai.edu/ojs/index.php/aktt/article/view/839 |
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