On the evaluation of civil bridge conditions and the estimate of maintenance cost;

Study on optimization of maintenance cost about warship equipment

Discussion and srrgestion on reducing fuel consumption and maintenance cost of diesel locomotive and on development of engine using alternative fuel

The objective function of the model is the annual costs of the system, including annual operating costs and depreciation costs of chilled water pumps, depreciation and maintenance costs of pipeline, and costs of chiller power consumption rising from cold loss through chilled water pipe wall.

Taking the concrete equipment in subsidiary company of Enterprises Development Company of SPC as example,this paper analyzed the economic life,annual cost oi equipment with dynamic eco -tech index,namely,time value of capital,aiming to provide basis for decision - making in selecting optimal renewal period of.