Integrated systems for trigeneration and district energy: modelling, optimization and improvement

使用综合集中供热和/或供冷厂为社区或地区提供供热和/或供冷服务被称为区域能源（DE）。热电联产是同时生产电和产品热。三联发电系统也产生冷却能力。三电联产系统可以与区域能源系统有益地结合起来。当这种组合系统包含吸收式冷却器时，其好处尤其显着，因为这种冷却装置主要是热驱动的，因此为热电联产热提供了额外的使用。虽然已经存在或计划有一些DE和三联产系统的单独应用，但很少有结合这两种技术的集成系统。其中一个原因是基于三元生成的DE系统的优化和改进是复杂的，并且需要适当地集成系统组件。然而，改进现有设计和实现最佳配置的方法通常仍然没有广泛可用。提出的研究旨在改进现有的和计划的基于集成三代的DE系统设计，以期实现最佳的系统和配置。将考虑以下主要因素：效率、经济和环境影响。预计拟议的研究将带来许多好处，包括改进和优化基于三代的DE系统的设计和配置，其中效率、经济和环境因素已得到适当考虑；增加这类系统的应用；向社会提供加热、冷却和电力服务，提高效率、经济可行性、可靠性和安全性，减少对环境的影响和退化；扩大了加拿大经济中这一部门的经济增长和就业。

The use of integrated central heating and/or cooling plants to provide heating and/or cooling services for communities or regions is referred to as district energy (DE). Cogeneration is the simultaneous production of electricity and product heat. A trigeneration system also generates cooling capacity. Systems for trigeneration can be beneficially combined with district energy systems. The benefits are especially notable when such combined systems incorporate absorption chillers, as such chilling devices are predominantly heat driven and thus provide an additional use for cogenerated heat. Although some separate applications of DE and trigeneration systems exist or are planned, there are few integrated systems that combine the technologies. One reason is that the optimization and improvement of trigeneration-based DE systems is complex, and requires that system components be integrated appropriately. However, methods for improving existing designs and achieving optimal configurations are in general still not widely available. The proposed research aims to improve existing and planned designs for integrated trigeneration-based DE systems in hopes of achieving optimal systems and configurations. The following principal factors will be accounted for: efficiency, economics and environmental impact. It is anticipated that the proposed research will result in numerous benefits, including improved and optimal designs and configurations for trigeneration-based DE systems, where efficiency, economic and environmental factors have been appropriately accounted for; increased applications of such systems; the provision to society of heating, cooling and electrical services with increased efficiency, economic viability, reliability and safety, and with decreased environmental impact and degradation; and expanded economic growth and employment in this sector of Canada's economy.