Mathematical Analysis of Optimal Operating Conditions in Heating Systems. (6th May 2019)

• Record Type: Journal Article
• Authors: Kong, Chan; Sun, Yong; Zhang, Hongxi; Shi, Yongjiang
• Other Names: Ramazani Ali Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2019(2019)
• Publication Date: 2019-05-06
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2019/4264562
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : With changes in the outdoor air temperature, the heat consumption of buildings also changes. Timely adjustment of the heating systems to ensure optimal operating conditions is extremely significant to save energy. In this study, the operation conditions of a heating system were analyzed numerically, and the existence, uniqueness, and stability of the optimal operation conditions of the heating system were proved. An operation optimization model that could obtain the optimal operation conditions was also established, and the correctness of the model was verified experimentally. Experimental results showed that when the flow rate was 0.606 m 3 /h, the supply water temperature was 67.13°C, water return temperature was 65.90°C, and the pump consumed the least amount of electricity. The experimental results and model calculation results showed that the operating cost is lower when the system flow rate is low and the supply water temperature is high under the same heat dissipation and indoor temperature.