Comparative analysis on performance emission test of single cylinder engine and multi cylinder engine
In the test of diesel engine, because the performance test of multi cylinder engine with different configuration needs to be replaced, and there is a certain risk in the first test, while the single cylinder engine is more suitable for the research.
| Рубрика | Производство и технологии |
| Вид | статья |
| Язык | английский |
| Дата добавления | 03.09.2024 |
| Размер файла | 1,7 M |
Отправить свою хорошую работу в базу знаний просто. Используйте форму, расположенную ниже
Студенты, аспиранты, молодые ученые, использующие базу знаний в своей учебе и работе, будут вам очень благодарны.
Размещено на http://www.allbest.ru/
Comparative analysis on performance emission test of single cylinder engine and multi cylinder engine
Shi YuanYuan, Henan Diesel Engine Industry Co., Ltd., Luoyang, China,
Niu XiaoXiao, Ph.D., Henan Diesel Engine Industry Co., Ltd., Luoyang, China,
Zhang XiangChen, Henan Diesel Engine Industry Co., Ltd., Luoyang, China,
Wang ZhiLei, Henan Diesel Engine Industry Co., Ltd., Luoyang, China
Abstract
In the research and test of diesel engine, because the performance test of multi cylinder engine with different configuration needs to be replaced, and there is a certain risk in the first test, while the single cylinder engine is more suitable for the research and test of different configurations because of its simple structure and convenient replacement of components. Therefore, by comparing the differences of combustion state between single cylinder engine and multi cylinder engine with the same configuration, the change law of performance characteristics of single cylinder engine and multi cylinder engine under different working conditions is confirmed. By analyzing the difference of emission performance of single cylinder engine with different configuration, the emission performance of multi cylinder engine under different configuration is predicted. The research in this paper has important significance for further research and test of diesel engine.
Keywords: diesel engine, single cylinder engine, multi cylinder engine, performance test. diesel engine single cylinder
СРАВНИТЕЛЬНЫЙ АНАЛИЗ ВЫБРОСОВ ОДНО- И МНОГОЦИЛИНДРОВОГО ДВИГАТЕЛЯ
Ши Юаньюань, Henan Diesel Engine Industry Co., Ltd.,
г. Лоян, Китай,
Ню Сяосяо, Ph.D., Henan Diesel Engine Industry Co., Ltd.,
г. Лоян, Китай,
Чжан Сянчэнь, Henan Diesel Engine Industry Co., Ltd.,
г. Лоян, Китай,
Ван Чжилэй, Henan Diesel Engine Industry Co., Ltd., г. Лоян, Китай
Аннотация. При исследовании и испытании дизельных двигателей проводилось сравнение различий в состоянии сгорания между одно- и многоцилиндровым двигателем с одинаковой конфигурацией в различных рабочих условиях. Анализировалась разница в характеристиках выбросов одноцилиндрового двигателя с разной конфигурацией, что позволило спрогнозировать характеристики выбросов многоцилиндрового двигателя в разной конфигурации. Приведенные данные имеют важное значение для дальнейших исследований и испытаний дизельных двигателей.
Ключевые слова: дизель, одноцилиндровый двигатель, многоцилиндровый двигатель, испытание производительности.
Introduction of test methods
A common rail diesel engine (1800r / min) produced by China Henan Diesel Engine Industry Co, Ltd. (HND) is selected The single cylinder diesel engine was tested with 25%, 50%, 75%, 90% and 100% propulsion performance tests and 10%, 25%, 50%, 75% and 100% load characteristic tests, respectively. Through the comparative analysis of the test results (explosion pressure, exhaust temperature, smoke, mechanical efficiency, fuel consumption), the variation rules of single cylinder diesel engine and multi cylinder diesel engine under the same working condition were verified.
Calibration of single cylinder engine
Due to the structural differences between single cylinder engine and multi cylinder engine, including the differences of intake and exhaust system, fuel system, oil system and cooling system of single cylinder engine, it is necessary to calibrate single cylinder engine and multi cylinder engine before verification test. By adjusting the single cylinder power, controlling the injection signal and intake pressure, the consistency of combustion state between single cylinder engine and multi cylinder engine is ensured [1-2].
By adjusting the control fuel injection signal to make the combustion start point consistent; by adjusting the intake pressure to make the intake air consistent; by adjusting the single cylinder power to make the indicated work the same. (Note: only 100% working condition comparison chart is reserved).
By comparing the heat release rate and cylinder pressure curves of multi cylinder engine and single cylinder engine, it is concluded that the combustion state of single cylinder engine and multi cylinder engine is basically the same when the fuel injection state is consistent with the intake and exhaust state. Therefore, the single cylinder engine test can be used as the basis for piston verification.
Comparison of test data
Through the test of a single cylinder engine and a multi cylinder engine, the comparison curves of explosion pressure, exhaust temperature, smoke, mechanical efficiency and fuel consumption are obtained (see the figure below for details).
Table 1.
COMPARISON TABLE OF SINGLE CYLINDER ENGINE/MULTI CYLINDER ENGINE TEST DATA (PROPULSION CHARACTERISTICS)
|
Working condition |
Model |
Single cylinder power |
Oil consumption |
Explosion pressure |
Smoke intensity |
Mechanica l efficiency |
|
|
25% |
Single cylinder |
37 |
210.8 |
77 |
1.235 |
86 |
|
|
Multi cylinder |
29 |
220.2 |
73 |
1.178 |
66.6 |
||
|
50% |
Single cylinder |
63 |
209.5 |
88 |
1.459 |
89.9 |
|
|
Multi cylinder |
58 |
217.1 |
87 |
1.744 |
73 |
||
|
75% |
Single cylinder |
102 |
206.8 |
110 |
1.198 |
91 |
|
|
Multi cylinder |
86 |
214.2 |
110 |
1.286 |
74 |
||
|
90% |
Single cylinder |
118 |
209.3 |
128 |
0.839 |
90.5 |
|
|
Multi cylinder |
104 |
213.8 |
127 |
1.075 |
76.6 |
||
|
100% |
Single cylinder |
125 |
216.7 |
136 |
0.925 |
89.6 |
|
|
Multi cylinder |
115 |
220.2 |
136 |
1.19 |
81.1 |
Table 2.
COMPARISON OF SINGLE CYLINDER ENGINE/MULTI CYLINDER ENGINE TEST DATA (LOAD CHARACTERISTICS)
|
Working condition |
Model |
Single cylinder power |
Oil consumption |
Explosion pressure |
Smoke intensity |
Mechanical efficiency |
|
|
100% |
Single cylinder |
125 |
216.7 |
136 |
0.925 |
89.6 |
|
|
Multi cylinder |
115 |
220.2 |
136 |
1.19 |
81.1 |
||
|
75% |
Single cylinder |
98 |
212.1 |
114 |
1.228 |
86.9 |
|
|
Multi cylinder |
86 |
214.4 |
116 |
1.242 |
74.7 |
||
|
50% |
Single cylinder |
72 |
231.9 |
93 |
1.88 |
85.2 |
|
|
Multi cylinder |
58 |
223.1 |
96 |
1.453 |
67.7 |
||
|
25% |
Single cylinder |
40 |
242.5 |
72 |
1.938 |
75.1 |
|
|
Multi cylinder |
29 |
260.1 |
77 |
1.143 |
51.4 |
||
|
10% |
Single cylinder |
22 |
300 |
64 |
1.219 |
59.4 |
|
|
Multi cylinder |
12 |
394 |
62 |
0.721 |
31.3 |
Through the analysis and comparison of the above test results, the following conclusions are obtained:
(1) When the intake state and combustion state are the same, the burst pressure of single cylinder engine and diesel engine is basically the same.
(2) The fuel consumption rate of multi cylinder engine is about 3-7 g/kWh higher than that of single cylinder engine.
(3) The temperature difference between multi cylinder engine and single cylinder engine is about ± 20 °С.
(4) The smoke values of multi cylinder engine and single cylinder engine are different.
(5) Due to the different piston types of single cylinder engine and multi cylinder engine, there is a certain difference in smoke and fuel consumption rate, but the performance and burst pressure of single cylinder engine can basically reflect the performance changes of the whole engine.
Conclusion
1. After completing the single cylinder emission test, it can be concluded that the performance of the single cylinder engine can basically reflect the performance of the whole machine, and no other emission performance tests can be carried out in the future.
2. The combustion state of the single cylinder engine is basically consistent with that of the whole engine, and the single cylinder engine test can be used as the basis for piston verification.
References:
1. Zhijian, Huang, & Zhou, Yuan (2014). Heat pump industry energy saving application. Beijing, Chemical Industry Press. 9. 123-131.
2. Zheng, X. (2008). The refrigeration principle and device.
Список литературы:
1. Zhijian Huang, Zhou Yuan Heat pump industry energy saving application. Beijing:
Chemical Industry Press, 2014. 9. P. 123-131.
2. Zheng X. The refrigeration principle and device. 2008.
Размещено на Allbest.ru
...Подобные документы
Автоматизовані системи тестування як частина навчального процесу. Комп'ютерні тести у навчанні та вимоги, що пред'являються до завдань. Структурна схема створення систем тестування. Редактор для створення електронних тестів EasyQuizzy та Easy Test.
курсовая работа [443,8 K], добавлен 11.03.2015Компания SANYO как один из мировых лидеров рынка климатической техники, история ее становления и развития, современное состояние и перспективы. Разработка и сферы применения VRF-систем, оценка их достоинств. Передовая технология ECO-i 3 WAY MULTI.
курсовая работа [1,2 M], добавлен 18.11.2013Общая характеристика конструктивной схемы стенда. Выбор типа датчика. Проектирование кулачкового механизма. Проведение анализа видов и последствий потенциальных отказов Failure Mode and Effects Analysis. Разработка маршрутного технологического процесса.
курсовая работа [1001,5 K], добавлен 28.09.2014Cash flow test and balance sheet test. The reasons of not having a single test. The definition and treatment of the debts and liabilities under the both tests. Some differences between Maltese law and UK law in this question.
реферат [10,7 K], добавлен 11.09.2006The geographic characteristics of the Novaya Zemlya archipelago in the Arctic Ocean. The history of the test site at Novaya Zemlya. Learning the facts about the nuclear test site. Description of the scope and consequences of the explosion of King-bomb.
презентация [1,2 M], добавлен 18.10.2015The collection and analysis of information with a view of improving the business marketing activities. Qualitative & Quantitative Research. Interviews, Desk Research, Test Trial. Search Engines. Group interviews and focus groups, Secondary research.
реферат [12,5 K], добавлен 17.02.2013Особенности и преимущества 3D-моделирования. Базовые функции нелинейного редактирования и комбинирования видео. Проектирование 3D-модели для игрового проекта по созданию дома и моста. Просмотр взаимодействий с игроком объектов в Unreal Engine 4.7.
дипломная работа [3,6 M], добавлен 14.06.2015Разработка нейронной сети, ее применение в алгоритме выбора оружия ботом в трехмерном шутере от первого лица, тестирование алгоритма и выявление достоинств и недостатков данного подхода. Обучение с подкреплением. Описание проекта в Unreal Engine 4.
контрольная работа [611,0 K], добавлен 30.11.2016Характеристика различных интернет-платформ, а также способов заработка на них. Преимущества и недостаки системы администрирования данных сайта WordPress, Joomla и 1-С Битрикс. Коммерческое программное обеспечение для управления контентом DataLife Engine.
курсовая работа [491,7 K], добавлен 26.12.2014Аналіз програмного забезпечення для проведення тестування в комп’ютерному класі. УТК (Універсальний тестовий комплекс). Асистент 2. OPEN TEST. Порівняння програм для тестування. Організація інтерактивного тестування за допомогою програми OPEN TEST.
реферат [30,3 K], добавлен 19.09.2008Test of strength and endurance. The Kazakh national game "Kokpar". Test of strength, agility, accuracy, ability to stay in the saddle. Audaryspak-known form of the Kazakh people's struggle - the forms of struggle riders on horseback. Players in pairs.
презентация [842,1 K], добавлен 11.03.2014
краткое изложение [4,7 K], добавлен 00.00.0000Inspected damages: visual inspection of the aircrafts which are present in the hangar: damages of a fuselage, of an engine, of a wing, of a tail unit, of a landing gear. Accident emergency landings (on ground and on water); emergency water landings.
отчет по практике [7,2 M], добавлен 25.05.2012Business plans are an important test of clarity of thinking and clarity of the business. Reasons for writing a business plan. Market trends and the market niche for product. Business concept, market analysis. Company organization, financial plan.
реферат [59,4 K], добавлен 15.09.2012History of sports betting. The "cash out" option in sports betting. The main determinants of the betting process. To test the hypothesis that the risk-aversion as the factor that makes individuals accept the amount to "cash out" proposed by a bookmaker.
дипломная работа [651,3 K], добавлен 04.11.2015Remarkable moments of the War for Independence and the American Revolution. The battles of Lexington and Concord. This quiz can be used to test the knowledge gained by pupils during the above lesson.
лекция [9,1 K], добавлен 03.12.2002Study credit channel using clustering and test the difference in mean portfolio returns. The calculated debt-to-capital, interest coverage, current ratio, payables turnover ratio. Analysis of stock market behavior. Comparison of portfolios’ performances.
курсовая работа [1,5 M], добавлен 23.10.2016Системы на основе линейного текста или гипертекста. Формирование требований к электронному учебнику. Подбор теоретического материала с использованием материалов электронной библиотеки и возможностей Интернет. Система тестирования Master test 1.0.
дипломная работа [1,7 M], добавлен 22.09.2014Using constructions "There is/ There are". Form "to be going to" sentences, meaning. Test exercises with pronouns. The Future Indefinite Tense. Modal verbs, the articles, noun. Past Tenses, passive voice, the Sequence of Tenses, prepositions in English.
тест [49,6 K], добавлен 10.12.2011The principles of nonlinear multi-mode coupling. Consider a natural quasi-linear mechanical system with distributed parameters. Parametric approach, the theory of normal forms, according to a method of normal forms. Resonance in multi-frequency systems.
реферат [234,3 K], добавлен 14.02.2010
