| 摘要 |
The invention is directed to a heat exchanger with optimal performance and a method of optimizing the performance of a heat exchanger. The heat exchanger has a first manifold, a second manifold and tubes extending therebetween. The tubes have at least one opening which extends through the entire length of the tubes. The method may include: governing the pressure drop in the heat exchanger by selecting different size openings or configurations of the tubes depending upon the type of refrigerant used and the properties thereof; optimizing the dimensions of the first manifold and second manifold, such that the ratio of manifold to tube size or manifold to tube opening cross sectional area yields low pressure drops and minimized the effects of pressure drop in the manifold and tube combination; and optimizing the ratio of the mass flow capacity of the first and second manifolds to the tubes flow capacity such that the first manifold has minimal or negligible mal-distribution effect when providing refrigerant to the tubes, thereby improving the overall performance of the heat exchanger. |
