Dynamic and thermodynamic characteristics of a linear Joule engine generator with different operating conditions
(چکیده مقاله) :
Abstract :
The Linear Joule Engine Generator is an energy conversion system made up from a linear expander, a linear
compressor, and a linear alternator. It is adaptable to variable renewable energy fuel sources, e.g. biogases,
biofuels, hydrogen and ammonia, etc. In this paper, an investigation on the system dynamics and thermodynamic
characteristics under different operating conditions is presented. Real time adjustable parameters were
identified, i.e. the system pressure, the valve timings, and the coefficient of electric resistance force. Their
influence on the indicated power of the expander, the electric power output from the linear alternator and the
energy conversion efficiency are scrutinised using a validated numerical model. In order to achieve stable operation
of the system, each parameter is controlled within a practical range, and optimised to maximise the
electricity generation efficiency. The system pressure was proved to be the most effective parameter to alter the
system power output. The indicated power of the expander with the existing dimensions can reach up to 11.0 kW
by adjusting the system pressure, and it cannot exceed 8.0 kW by just tuning valve timings or optimising the
coefficient of electric resistance force. The coefficient of electric resistance force is found to be the most influential
parameter to maximise the electricity generation efficiency up to 80%.
compressor, and a linear alternator. It is adaptable to variable renewable energy fuel sources, e.g. biogases,
biofuels, hydrogen and ammonia, etc. In this paper, an investigation on the system dynamics and thermodynamic
characteristics under different operating conditions is presented. Real time adjustable parameters were
identified, i.e. the system pressure, the valve timings, and the coefficient of electric resistance force. Their
influence on the indicated power of the expander, the electric power output from the linear alternator and the
energy conversion efficiency are scrutinised using a validated numerical model. In order to achieve stable operation
of the system, each parameter is controlled within a practical range, and optimised to maximise the
electricity generation efficiency. The system pressure was proved to be the most effective parameter to alter the
system power output. The indicated power of the expander with the existing dimensions can reach up to 11.0 kW
by adjusting the system pressure, and it cannot exceed 8.0 kW by just tuning valve timings or optimising the
coefficient of electric resistance force. The coefficient of electric resistance force is found to be the most influential
parameter to maximise the electricity generation efficiency up to 80%.
(توضیحات تکمیلی) :
(توضیحات تکمیلی) :
Description :
مقاله ISI انگلیسی اصلی
سال انتشار:2018
این مقاله OPEN ACCESS می باشد و به طور رایگان از سایت ساینس دایرکت قابل دانلود است
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تعداد صفحات فایل ISI انگلیسی اصلی: 8 صفحه
سال انتشار:2018
این مقاله OPEN ACCESS می باشد و به طور رایگان از سایت ساینس دایرکت قابل دانلود است
فایل ISI انگلیسی اصلی ، با فرمت Pdf
تعداد صفحات فایل ISI انگلیسی اصلی: 8 صفحه
Authors / Descriptions(نویسندگان/توضیحات): Boru Jiaa,⁎, Dawei Wub, Andrew Smallbonea, Ugochukwu Charles Ngwakaa, Anthony Paul Roskillya
Sent date(تاریخ ارسال) :
1397/10/07 | 12/28/2018
Number of visits(تعداد بازدید):
1873
Key words (کلمات کلیدی):
Dynamic and thermodynamic characteristics of a linear Joule engine generator with different operating conditions (مقاله ISI - سال انتشار:2018)
Number of pages(تعداد صفحات) :
8
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