Energy-Saving and Economical Evaluations of a Ceramic Gas Turbine Cogeneration Plant

• 作者: Satoru Okamoto
• 来源期刊: 能源效率(英文)
• 学科: 经济
• 关键词: Energy EXERGY ENERGY-SAVING Economical Evaluation CERAMIC Gas TURBINE COGENERATION Plant
• 年，卷（期）: nyxlyw,（2）
• 页码范围: 89-96
• 页数: 8页
• 分类号: F4

摘要

A ceramic gas turbine can save energy because of its high thermal efficiency at high turbine inlet temperatures. This paper deals with the thermodynamic and economic aspects of a ceramic gas turbine cogeneration system. Here cogeneration means the simultaneous production of electrical en-ergy and useful thermal energy from the same facility. The thermodynamic performance of a ceramic gas turbine cycle is assessed using a computer model. This model is used in parametric studies of performance under partial loads and at various inlet air temperatures. The computed performance is compared to the measured performance of a conventional gas turbine cycle. Then, an economic evaluation of a ceramic gas turbine cogeneration system is investigated. Energy savings provided by this system are estimated on the basis of the distributions of heat/power ratios. The computed economic evaluation is compared to the actual economic performance of a conventional system in which boilers produce the required thermal energy and electricity is purchased from a utility.