For the sake of saving energy and reducing emissions, this paper will introduce a design of oil-saving device for the simple cylinder 250 water-cooled petrol engine. The oil-saving device is based on the principle of ...For the sake of saving energy and reducing emissions, this paper will introduce a design of oil-saving device for the simple cylinder 250 water-cooled petrol engine. The oil-saving device is based on the principle of heat transfer and capture. By raising the heat of the oil mist up to 50℃, absorption and gathering the released gas from the opening valve, the engine can achieve fuel-saving purpose. The oil-saving device was made by 3D print technology. UG8.0 and ANSYS workbench were used in the design of device.展开更多
This study examined the effect of reducing disposable plastic checkout bags used in supermarkets, convenience stores, and so on in Japan. Considering that even when these checkout bags are abolished, alternative waste...This study examined the effect of reducing disposable plastic checkout bags used in supermarkets, convenience stores, and so on in Japan. Considering that even when these checkout bags are abolished, alternative waste bags should be newly produced, because these checkout bags have been reused as household waste bags so far, and the corresponding amount of oil is still necessary to produce them, the amount of oil saved by this bag reduction was found to be 0.2 L/person/year at most. Further, it was demonstrated that the necessity to purchase substitute bags may increase the household and financial burden on consumers.展开更多
基金surported by the China Scholarship Council(CSC)(201608525023)
文摘For the sake of saving energy and reducing emissions, this paper will introduce a design of oil-saving device for the simple cylinder 250 water-cooled petrol engine. The oil-saving device is based on the principle of heat transfer and capture. By raising the heat of the oil mist up to 50℃, absorption and gathering the released gas from the opening valve, the engine can achieve fuel-saving purpose. The oil-saving device was made by 3D print technology. UG8.0 and ANSYS workbench were used in the design of device.
文摘This study examined the effect of reducing disposable plastic checkout bags used in supermarkets, convenience stores, and so on in Japan. Considering that even when these checkout bags are abolished, alternative waste bags should be newly produced, because these checkout bags have been reused as household waste bags so far, and the corresponding amount of oil is still necessary to produce them, the amount of oil saved by this bag reduction was found to be 0.2 L/person/year at most. Further, it was demonstrated that the necessity to purchase substitute bags may increase the household and financial burden on consumers.
