42 Dynamic Simulation of Woody Biomass Co-generation System …
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Table 42.1 Initial cost, setting cost, maintenance cost, and useful life of equipment
Item
Cost
Useful life Notes
Yen
Years
Heavy oil boiler
Main unit
2,687,000 13
Estimate from
HIRAKAWA
Installation
700,000
HOLZ125
Main unit
110,000,000 10
Interview to
HolzEnergie
Installation
0
Wooden chip boiler
Main unit
36,700,000 13
Estimte from
TOMOE-TECHNO
Basis of the machine
room
Civil engineering
19,500,000 31
Estimte from
TOMOE-TECHNO
Het supply system
Piping, electric
equipment
Main unit
7,960,000 13
Estimte from
TOMOE-TECHNO
Installation
52,020,000
Estimte from
TOMOE-TECHNO
Fig. 42.2 Heat demand and heat output during a 1-week period in November 2018
shows the heat supply breakdown for scenario B based on the acquired heat demand
data. In this study, to determine the 1-year heat demand, we assumed that the weekly
heat demand for each month is the same trend shown in Fig. 42.2, and monthly heat
demand data is acquired. The woodchip purchase cost was set at 14,300 yen/t based
on an interview conducted at the Gojo City facility.