New energy vehicles have better clean and environmental protection characteristics than traditional fuel vehicles. The new engine cooling technology is critical in the design of This paper used one-and three-way joint simulation methods to simulate refrigeration system Firstly, a k-ε turbulent flow model for pump field established based on principle computational fluid dynamics. Then, CFD comme...

Engine cooling system plays an important role to maintain the operating temperature of engine. The coolant circuit initiates by picking up heat at water jackets.With the pressure gradient exists in coolant circuit, hot coolant flows out from engine to radiator or to bypass circuit (during cold start). The under hood air flow carries heat away at radiator after the air flows through numerous hoo...

To achieve energy saving and emission reduction for vehicle diesel engines, the organic Rankine cycle (ORC) was employed to recover waste heat from vehicle diesel engines, R245fa was used as ORC working fluid, and the resulting vehicle diesel engine-ORC combined system was presented. The variation law of engine exhaust energy rate under various operating conditions was obtained, and the running...

To meet increasingly strict emission legislation and stronger demands on fuel consumption, typical passenger car diesel engines become increasingly complex with more and more controllable systems added. These added systems open up for the possibility to operate the engine at more efficient conditions, but it also becomes more challenging to optimize the settings in the engine management system....

Support of the established technical characteristics engines is reached by its regular service and diagnostics in particular - existence diagnostic programs built onboard computer car which carry out constant control main parameters engine.Based on algorithm vibroacoustic diagnostics, a system vibration internal combustion engine (ICE) proposed, can be integrated into intelligent environment se...

many studies have been done on hybrid vehicles in the past few years. the full hybrid vehicles need a large number of batteries creating up to 300 (v) to meet the required voltage of electric motor. the size and weight of the batteries cause some problems. this research investigates the mild hybrid vehicle. this vehicle includes a small electric motor and a high power internal combustion engine...

Regarding the power, the efficiency and the discharge questions of the low-speed diesel engine, this article studied emphatically the Miller cycle, the analysis technology for the air intake system, and the matching technology for the intake and the exhaust. On the foundation of the twin inlet structure the paper analyzed the intake swirl control area and its influence to the gas charging effic...

this paper describes a study that starts with an analysis of typical energy demand profiles in a hospital setting followed by a case study of a combined cooling, heating, and power (cchp) generation system.cchp is an autonomous system that combines the generation of electrical, heating, and cooling energy.the driving units are two high-efficiency gas engines that produce electrical and heat ene...

Vehicles used in our daily lives are no more considered as a luxury but a necessity. Vehicles are very helpful in our movement, logistics and transport activities. Vehicles are normally fault-prone and require efficient automobile engineering services to repair or maintain such faults. The characteristic mobility of vehicles allows them to develop faults anywhere and anytime and in some of thes...