燃气热泵空调（GHP）数值模拟研究
文献类型：学位论文
| ; | |
| 作者 | 李玉 |
| 学位类别 | 硕士 |
| 答辩日期 | 2008-06-02 |
| 授予单位 | 中国科学院广州能源研究所 |
| 授予地点 | 广州能源研究所 |
| 导师 | 冯自平 |
| 关键词 | 燃气热泵 仿真模型 运行特性 优化匹配 |
| 其他题名 | Simulation Study on Natural Gas Engine-driven Heat Pump |
| 中文摘要 | With the electricity consumed by air-conditionings increasing sharply and the vast popularization use of natural gas in our country, the investigations on natural gas engine-driven heat pump (GHP) are now come in for people’s attention. The GHP is an equipment that can provide heating in winter and cooling in summer, which uses natural gas engine as source of power, and makes fully use of waste heat of engine and environment energy of low quality. The GHP has the advantages of high efficiency, low charge, energy saving and environment protection, in favor of reforming the balance of electricity and gas. It can be applied in small and medium-sized shopping malls, hotels, office buildings, entertainment sites, hospitals, residences, schools, and those locations using air-conditionings. The technology of GHP is relatively mature in several developed countries such as Japanese, America, and some European countries, and the application is also very prevalent. In our country, the GHP has not acquired enough recognition, due to many restrictions such as energy policy, technology and economy environment, energy supply status and price. To accelerate the process of research and development in China, this paper conducted a general theoretical investigation on the GHP. The main contents of this paper are as follows: According to the equipment developed by our laboratory and Haier Group, an integrated mathematic model of natural gas engine-driven heat pump was established, which laid the foundation for character analysis and optimum matching of the system. Though it is a new-style installation providing heating and cooling, the main components (engine, compressor, heat exchanger, and so on) of GHP have developed for many years, and the research of foundational theories is quite integrated. According to these theories, the GHP was simulated through establishing the numerical models of main components. The model of GHP is composed of two parts, namely engine and heat pump model. The model of engine also contains exhaust gas heat exchanger. The model of heat pump is made up of four parts, including scroll compressor, thermal expansion valve, condenser and evaporator. Using the mathematical model, the runtime characteristics of natural gas engine were simulated and analyzed by changing the parameters such as advance ignition angle, compression ratio, and excess air ratio, which provided bases for optimum design and control of natural gas engine. The results of simulation indicate that the primary energy ratio (PER) of the GHP is obviously higher than other conventional heating and cooling equipments, and the part load performance of the GHP is excellent. The characteristic analysis and optimum matching of the GHP are main study objects of this paper with computer simulation as main tools. The methods and conclusions may be helpful for investigation and design of the GHP. |
| 语种 | 中文 |
| 公开日期 | 2011-07-14 ; 2011-07-15 |
| 页码 | 69 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/5782]  |
| 专题 | 中国科学院广州能源研究所 |
| 推荐引用方式 GB/T 7714 | 李玉. 燃气热泵空调（GHP）数值模拟研究, Simulation Study on Natural Gas Engine-driven Heat Pump[D]. 广州能源研究所. 中国科学院广州能源研究所. 2008. |
入库方式： OAI收割
来源：广州能源研究所
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