Engineering Aspects of a Novel High Efficiency Reciprocating Internal Combustion Engine

2002 ◽  
Author(s):  
Mike W. Coney ◽  
Andrew M. Cross ◽  
Claus Linnemann ◽  
Robert E. Morgan ◽  
Bruce Wilson
Keyword(s):  
Internal Combustion Engine ◽  
High Efficiency ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Hot Water ◽  
Electrical Efficiency ◽  
New Type ◽  
Industrial Use ◽  
Commercial Applications ◽  
Under Construction

A new type of high efficiency reciprocating internal combustion engine, which is predicted to achieve an electrical efficiency of up to 60% on diesel fuel or 58% on natural gas, is described with particular focus on the engineering of its novel components. The so-called isoengine, which is being developed by Innogy plc, involves quasi-isothermal compression of combustion air. In commercial applications it is envisaged that the engine will run at 600 rpm and produce 7 MW of electric power. The engine will also be capable of producing up to 3 MW of heat in the form of hot water, with the electrical efficiency reduced by two percentage points. The engine is intended for distributed and on-site power generation with the option of switchable co-generation of hot water for industrial use or for space heating. A 3 MWe engineering demonstrator is currently under construction.

A Novel Internal Combustion Engine With Simultaneous Injection of Fuel and Pre-Compressed Pre-Heated Air

2002 ◽  
Author(s):  
Mike W. Coney ◽  
Claus Linnemann ◽  
Rob E. Morgan ◽  
Tom G. Bancroft ◽  
Richard M. Sammut
Keyword(s):  
Internal Combustion Engine ◽  
Thermal Loading ◽  
High Efficiency ◽  
Waste Heat ◽  
Cooling System ◽  
Combustion Engine ◽  
Combustion Process ◽  
Internal Combustion ◽  
Heated Air ◽  
Under Construction

A new type of high efficiency reciprocating internal combustion engine is being developed, which has separate cylinders for compression and combustion on a common crankshaft. The combustion air is compressed quasi-isothermally using dense water sprays, preheated using engine waste heat and injected into the combustion chamber simultaneously with the fuel. This novel process is predicted to allow net electrical efficiencies of up to 60%. The present paper focuses on the combustion process and the cooling system of a 3 MW four-cylinder prototype engine, which is currently under construction. This includes development of the design for high thermal loading and for combustion, in which pre-compressed and pre-heated air is introduced into the cylinder simultaneously with the fuel. The overall development is aimed at a 7 MW commercial engine with eight cylinders.

scholarly journals First Test Results of a Novel Large High-Efficiency Reciprocating Piston Engine

2003 ◽  
Author(s):  
Mike W. Coney ◽  
Claus Linnemann ◽  
Anna L. Greenwood ◽  
Carl R. Hogg
Keyword(s):  
Internal Combustion Engine ◽  
High Efficiency ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Technical Conference ◽  
Rail Transportation ◽  
Test Results ◽  
Engine Design ◽  
New Type ◽  
Engine Size

A new type of high-efficiency reciprocating internal combustion engine — called the “isoengine” — is being developed, which has separate cylinders for compression and combustion. The fully developed engine is predicted to generate electricity at net electrical plant efficiencies of up to 60% with unit sizes in the range of about 5–20 MWe. The specific capital cost and overall engine size are expected to be similar to those of conventional large engines. The construction of a first 3 MW prototype engine has now been fully completed and in October 2002 the first fuel was injected. The present paper focuses on the experience and test results obtained during the commissioning and early test stage of the prototype engine. The testing of this Engineering Demonstrator will contribute significantly to the development of a Commercial Demonstrator and first commercial isoengines, which should be available in the second half of this decade.   NOTE: This paper was presented at the ASME 2003 Internal Combustion Engine Division Spring Technical Conference but was printed in the ASME 2003 Internal Combustion Engine and Rail Transportation Divisions Fall Technical Conference proceedings, pages 409–418. It should appear under the Engine Design heading.

Development of a High-Efficiency, Low-Cost Hybrid SOFC/Internal Combustion Engine Power Generator

2021 ◽  
Vol MA2021-03 (1) ◽  
pp. 35-35
Author(s):  
Rob Braun ◽  
Gus Floerchinger ◽  
David Wahlstrom ◽  
Neal P. Sullivan ◽  
Tyrone Vincent ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
High Efficiency ◽  
Combustion Engine ◽  
Low Cost ◽  
Internal Combustion ◽  
Power Generator ◽  
Engine Power

The Finite Element Analysis and Optimization of Micro Free Piston Swing Engine’s Strain Interference

2010 ◽  
Vol 139-141 ◽  
pp. 938-942
Author(s):  
Ji Jing Lin ◽  
Yan Hong Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Computation Method ◽  
Element Analysis ◽  
Free Piston ◽  
New Type ◽  
Swing Engine

MFPSE, Micro Free Piston Swing Engine, is a new type of miniature internal combustion engine based on the working principle of two-stroke swing engine. The successful development and operation of this type of miniature internal combustion engine provide important significance for the miniaturization of the internal combustion engine, and provide a number of important research theory, computation method and experimental data. In this article, according to the work characteristics and co-ordination requirements of MFPSE (Micro Free Piston Swing Engine), whose strain interference is analyzed using finite element analysis software, the problems and interference of the center pendulum and cylinder is found evidently. The data of analysis provides theory basis for the MFPSE’s structural optimization, and is critical to improve the performance of MFPSE.

scholarly journals Exergy and Exergoeconomic Analysis of a Combined Cooling, Heating, and Power System Based on Solar Thermal Biomass Gasification

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2418 ◽  
Author(s):  
Jin Wu ◽  
Jiangjiang Wang ◽  
Jing Wu ◽  
Chaofan Ma
Keyword(s):  
Energy Level ◽  
Internal Combustion Engine ◽  
Cost Allocation ◽  
Combustion Engine ◽  
Biomass Gasification ◽  
Internal Combustion ◽  
Hot Water ◽  
Exergy Loss ◽  
Exergoeconomic Analysis ◽  
Combined Cooling

The purpose of this paper is to improve the utilization of renewable energy by exergy and exergoeconomic analysis of the novel combined cooling, heating, and power (CCHP) system, which is based on solar thermal biomass gasification. The source of heat to assist biomass and steam gasification is the solar heat collected by a dish collector, and the product gas being fuel that drives the internal combustion engine to generate electricity and then to produce chilled/hot water by a waste heat unitization system. The analysis and calculation of the exergy loss and exergy efficiency of each component reveal the irreversibility in the heating and cooling conditions. Then, the exergoeconomic costs of multi-products such as electricity, chilled water, heating water, and domestic hot water are calculated by using the cost allocation method based on energy level. The influencing factors of the unit exergy cost of products are evaluated by sensitivity analysis, such as initial investment cost, biomass cost, service life, interest rate, and operating time coefficient. The results reveal that the internal combustion engine takes up 49.2% of the total exergy loss, and the most effective method of products cost allocation is the exergoeconomic method based on energy level and conforms to the principle of high energy level with high cost.

Simulation and Test for Turbine Air Powered Engine

2014 ◽  
Vol 945-949 ◽  
pp. 2810-2814
Author(s):  
Jing Liu ◽  
Jing Tao Han ◽  
Jin Chun Deng
Keyword(s):  
Internal Combustion Engine ◽  
High Speed ◽  
Exergy Analysis ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Exergy Loss ◽  
Bench Test ◽  
Reduced Pressure ◽  
Low Speed ◽  
New Type

Turbine Air Powered Engine (TAPE) is a new type engine which has the character of zero emission, no pollution. Mathematical models of TAPE were established by the method of exergy analysis, the overall exergy and the exergy loss after reduced pressure with throttling were simulated in this paper. The results show that the maximum exergy loss of system is 60% during the process of reduced pressure with throttling, so the type of throttling decompression is not suitable for the system of TAPE which has bigger pressure reducing ratio. The results of bench test indicate that output power increases with the increase of inlet pressure within the scope of less pressure, and the regulation is similar to the simulating result. In the hybrid system of pneumatic internal-combustion engine, the measure which the air powered system is used in low-speed stage and the internal combustion engine powered system is adopted in high-speed stage can effectively solve the problem which the fuel consumption of the internal combustion engine is too bigger at low speed.

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