Application of an economy comparison model for mine cooling system technology

Abstract

Being the existing complex selection method of mine cooling scheme and  the incomprehensive index value,etc., with the specific circumstances of the high temperature mine, the paper put forward  13 index values, including the machine power, project investment, operation cost, etc,. established comparative model of technical and economic benefit of mine cooling system by using the objective entropy weight and TOPSIS method. Using objective entropy weight, the entropy weight of evaluation index and the weight decision matrix are determined, using TOPSIS method . the ideal solution and the negative ideal solution are determined . Using  the closeness degree calculation the scheme sort, then the optimal scheme can be determined . To four cooling schemes in a mine, optimization calculation and comparison of  are carried out by the model, scheme 4 is the optimal scheme for cooling system.