关于CCHP的基本介绍（参考：1. CHP and CCHP Systems Today 2. Energyst ）

1. INTRODUCTION

Combined cooling, heat & power (CCHP), also known as trigeneration, is an extension of combined heat & power (CHP). While CHP only generates electricity and heat, CCHP adds cooling to the list. In other words, trigeneration or CCHP means some of the heat that is produced is also used to generate cooling energy.
Trigeneration systems consist of a gas engine, an electricity generator, a heat exchanger and an absorption chiller. The gas-fired generator produces heat as well as electricity. This exhaust heat is transported to the absorption chiller that uses it to produce cooling energy. The results are chilled water and/or hot water for air conditioning. The ratio of the electricity produced to the exhaust heat for the absorption chiller can be varied to meet specific requirements.

2. COMMON CCHP CONFIGURATIONS

The CCHP system has five basic components:

Basic aggregate – gas turbine, steam turbine, internal combustion engine, microturbine, fuel cells and Stirling engines
Electricity generator
Heat exchanger
Thermally-driven unit – LiBr absorption chiller
Management/control subsystem

Fig1 Internal combustion engine as the aggregate

Fig2 Microturbine as the aggregate

Fig3 Stirling engine as the aggregate