Some considerations about maintenance optimization of wind power turbines
The paper proposes a mathematical model to optimize wind power turbine maintenance by minimizing the total costs with preventive maintenance, corrective maintenance and costs due to energy losses. Objective function is an economic function and is represented by the total costs associated with actions of preventive maintenance, corrective maintenance and production losses due to interruption of equipment operation during maintenance activities. Furthermore, a study case is presented to show the implementation of the proposed mathematical model.
According to air conditioning disease infestations,the rural family cannot afford air-conditioning and cooling problems,this paper designs a simple environment-protecting energy-saving refrigeration device,including:water pump,fan,box,grass block component,for one of the most important water pump design and type selection,this paper mainly spread out analysis and design.This device has many advantages,such as environmental protection,energy saving,health,convenience,low cost and so on