基于层次分析法的北京市平原区水源热泵适宜性分区研究

Study on Division of the Appropriate Rank of Water Source Heat Pumps based on AHP in Beijing Plain

本文考虑到影响水源热泵功效的主要因素,对北京市平原区进行了水源热泵适宜性分区。首先,确定影响水源热泵的10个主要因素,采用层次分析法确定了10个因素的影响程度,运用综合指数法计算了北京市平原区1km×1km网格上的水源热泵适应性指数,最后采用该指数进行适宜性分区。结果表明,适宜和比较适宜建立水源热泵工程地区的面积为1381km^2,一般适宜地区的面积为1760km^2,绝对禁建和不适宜建立的面积为2997km^2,该结果为北京市浅层地温能开发利用和水源热泵工程建设,提供了科学依据。

This paper makes the division of the appropriate rank of water source heat pumps, taking fully into account the many impact factors of efficacy of water source heat pumps. First, we made sure 10 impact factors of water source heat pumps and the degree of the 10 factors based on AHP, then calculated the appropriate coefficient of water source heat pumps based on comprehensive coefficient method on 1km×1km grid. Finally, this paper makes the division of the appropriate rank based on the appropriate coefficient. As a result, the area of appropriate and less appropriate zones is 1381 km^2; the area of medium appropriate zone is 1760km^2; the area of forbidden and inappropriate zone is 2997km^2. This result offers a scientific guide to develop and utilize the shallow geothermal energy resources and water source heat pumps.