Cogeneration waste heat utilization

Overview

In addition to the system that uses the waste heat from the generator as hot water, the waste heat is converted to cold water and used for cooling and air conditioning greatly improvingthe overall annual efficiency of the cogeneration system.

Sports center Natural gas fired cogeneration

Business type	Sports center
Model	Water fired chiller 100RT(2 units)
Available heat	1,005kW(waste hot water)
Chilled water application	Factory air conditioning
Energy saving	408,800(kWh/year)

Proposal content

Added a waste heat utilization machine (cooling output 704kW) to the existing electric air conditoner(cooling output 1,408kW).
Electricity consumption and CO₂ emissions are reduced by covering the base operation of existing equipment with waste heat utilization equipment.

Plastic factory Natural gas fired cogeneration

Business type	Plastic production factory
Model	Water fired chiller (100RT)
Available heat	504kW(waste hot water)
Chilled water application	For cooling mold
Energy saving	425,700(kWh/year)

Proposal content

Added a waste heat utilization machine (cooling output 352kW) to the existing electric chiller(cooling output 704kW).
Electricity consumption and CO₂ emissions are reduced by covering the base operation of existing equipment with waste heat utilization equipment.

Winery
Biogas cogeneration

Business type	Winery
Model	Water fired chiller (50RT)
Available heat	252kW(waste hot water)
Chilled water application	For cooling wine cellar
Energy saving	147,000（kWh/year）

Proposal content

By using the chilled water generated by the waste heat utilization machine to cool the wine storage rroom, it is possible to control the temperature of the wine storgage room while suppressing the increase in electricity consumption.