Эффективность пластинчатых теплообменников: комплексный оптимизационный вычислительный эксперимент
Вантажиться...
Дата
2017
ORCID
DOI
10.20998/2078-774X.2017.09.08
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
НТУ "ХПИ"
Анотація
В статье изложены некоторые пути развития алгоритмов оптимизации пластинчатых теплообменников: рекомендации по выбору оптимальных скоростей теплоносителей, точности проведения отдельных частей расчётов (теплового и гидравлического), порядку и шагу перебора независимых переменных. Рекомендации получены как результат проведения ряда оптимизационных вычислительных экспериментов с помощью разработанных авторами алгоритма и программы оптимизации пластинчатых теплообменников (ОПТО).
This scientific paper gives recommendations on the development of the algorithms for computational optimization experiments using the algorithms and OPHEX programs developed by the authors. The following key recommendations have been suggested: 1. Recommendations on the order and sorting interval of independent variables. These recommendations were worked out using the data of the ranging of independent variables in terms of their influence on optimization results. The order of influence of these variables for different types of equipment has been given. 2. Recommendations on the choice of optimal media rates. The values of optimal rates of heat carriers used at the present time for manual and automatic calculations were obtained long ago and therefore these fail to take into account changed economic factors and require more accurate definition. The data of multiple calculations were generalized and the recommendations on the selection of optimal rates for heat carriers were worked out taking into consideration current prices and their change with an increase in energy and material prices was predicted. 3. Recommendations on the possibility of simplification of the models for some calculations with no significant loss in the general computation accuracy. This section gives the conclusions on the degree of influence produced by the individual parts of computation on its general results and optimization results on the whole. We came to the conclusions based on the data of computational experiments. The recommendations given can be included in the form of heuristics into the optimization algorithms of the plate-typeheat exchanges that considerably reduces the dimension of optimization problem and allows us to increase its efficiency at the same machine resource.
This scientific paper gives recommendations on the development of the algorithms for computational optimization experiments using the algorithms and OPHEX programs developed by the authors. The following key recommendations have been suggested: 1. Recommendations on the order and sorting interval of independent variables. These recommendations were worked out using the data of the ranging of independent variables in terms of their influence on optimization results. The order of influence of these variables for different types of equipment has been given. 2. Recommendations on the choice of optimal media rates. The values of optimal rates of heat carriers used at the present time for manual and automatic calculations were obtained long ago and therefore these fail to take into account changed economic factors and require more accurate definition. The data of multiple calculations were generalized and the recommendations on the selection of optimal rates for heat carriers were worked out taking into consideration current prices and their change with an increase in energy and material prices was predicted. 3. Recommendations on the possibility of simplification of the models for some calculations with no significant loss in the general computation accuracy. This section gives the conclusions on the degree of influence produced by the individual parts of computation on its general results and optimization results on the whole. We came to the conclusions based on the data of computational experiments. The recommendations given can be included in the form of heuristics into the optimization algorithms of the plate-typeheat exchanges that considerably reduces the dimension of optimization problem and allows us to increase its efficiency at the same machine resource.
Опис
Ключові слова
ПТО, кожухотрубчатые теплообменники, КТО, ТО, оптимизация, алгоритмы оптимизации, критерии эффективности, optimization algorithms
Бібліографічний опис
Алтухова О. В. Эффективность пластинчатых теплообменников: комплексный оптимизационный вычислительный эксперимент / О. В. Алтухова, Г. Е. Каневец // Вісник Нац. техн. ун-ту "ХПІ" : зб. наук. пр. Сер. : Енергетичні та теплотехнічні процеси й устаткування = Bulletin of the National Technical University "KhPI" : coll. works. Ser. : Power and Heat Engineering Processes and Equipment. – Харків : НТУ "ХПІ", 2017. – № 9 (1231). – С. 52-56.