Research into emissions of nitrogen oxides when converting the diesel engines to alternative fuels

Abstract

Розроблена математична модель розрахунку викидів оксидів азоту у відпрацьованих газах дизельних двигунів та двигунів переобладнаних на газове паливо. Виконані в лабораторних умовах експериментальні дослідження дизельного двигуна моделі X17DTL автомобіля Опель Астра на викиди оксидів азоту у відпрацьованих газах дизельного двигуна та двигуна конвертованого на газове паливо Ключові слова: альтернативні палива, дизельний двигун, оксиди азоту, конвертація двигуна на газ Разработана математическая модель расчета выбросов оксидов азота в отработанных газах дизельных двигателей и двигателей, переоборудованных на газовое топливо. Выполнены в лабораторных условиях экспериментальные исследования дизельного двигателя модели X17DTL автомобиля Опель Астра на выбросы оксидов азота в отработанных газах дизельного двигателя и двигателя, конвертированного на газовое топливоКлючевые слова: альтернативные топлива, дизельный двигатель, оксиды азота, конвертация двигателя на газ

Designing the shape of the combustion chambers for gas engines converted on the basis of the diesel engines

“…The geometric compression degree of the diesel engine was reduced from 16 to 12 in the same way as it was reported in [4]. The disadvantages of the cited work are similar to flaws in [4].…”

“…The results of a study into the re-equipment of the tractor diesel engine D-240 to the gas ICE with forced ignition to operate on compressed natural gas were reported in paper [6]. The geometric compression degree of the diesel engine was reduced from 16 to 12 in the same way as it was reported in [4]. The disadvantages of the cited work are similar to flaws in [4].…”

“…Paper [4] reports the results of studying a gas ICE converted on the basis of a serial 4-cylinder turbocharged diesel engine of the X17DTL model. The gas ICE was converted to operate on LPG with the Otto thermodynamic cycle [5].…”

“…In addition, the disadvantage of the converted gas ICEs [4,6] is the absence of a «mechanism» (controller) to limit the maximum frequency rotation of a gas ICE, which can lead to its destruction when operated under the modes of forced idling.…”

Effi ciency of Production of Motor Biofuels for Water and Land Transport

“…It should be added that shipping is currently one of the fastest growing and most eff ective directions in the transport sector and plays an important role in the global economy. Energy production from biomass is developing dynamically in many countries around the world, because the intensive growth of the renewable energy market has not only the energy but also the environmental aspect [5,6]. Such a strategic direction of energy usage meets the conditions for sustainable development of the planet and the stable economic existence of society.…”