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Z. Lu and G. Zhu
grid
energy
Energy
source
Tertiary energy
carrier
Energy
conversion
Secondary
energy
Energy
production
electricity
Natural
gas
Waste
gas
Heat
transfer
fluid
Cooling
fluid
Gas turbine
Waste heat
boiler
Absorption
chiller
Electric
heater
Electric
chiller
CCHP Structure
electricity
CCHP
Fig. 4.2 Combined cooling heating and power system (CCHP)
Fig. 4.3 User-oriented integrated energy system architecture