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1) |
Enterprises
shall strive to recover heat efficiently to achieve a target of reducing
the inlet temperature of coolers and condensers to below 200°C. However,
this shall not apply in the case of equipment using a solid, highly
soiled fluid or highly corrosive fluid and having a cooling heating
value of under 2,100 MJ per hour or heat recovery capacity of under
630 MJ per hour. |
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2) |
In the case
that steam is used by facilities for the purpose of heating, etc.
and action is taken to rationalize energy use by increasing dryness,
consideration shall be given to increasing the dryness of heat-using
facilities through the introduction of equipment to prevent radiation
at the transport stage and steam separators. |
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3) |
Consideration
shall be given to increasing the emittance of the furnace walls and
other parts of industrial furnaces by improving their properties and
shape. |
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4) |
Consideration
shall be given to increasing the heat transfer coefficient of the
heat transfer area of facilities for the purpose of heating, etc.
by improving the properties and shape. |
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5) |
Consideration
shall be given to the use of materials with a high coefficient of
thermal conductivity for the parts of facilities for heating, etc.
involved in heat exchange. |
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6) |
Consideration
shall be given to reducing the heat capacity of the furnace casing
of industrial furnaces, firing bases, fixtures and carts for transportation
of heated substances and similar equipment. |
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7) |
In the case
that direct heating of heated objects by means of direct flame burners
or submerged combustion, etc. is possible, direct heating shall be
considered. |
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8) |
In the case
of heating, etc. by multi-effect evaporator, consideration shall be
given to increasing the overall thermal efficiency by increasing the
number of evaporators. |
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9) |
In the case
of distillation towers, consideration shall be given to improving
operating pressure, reducing the reflux ratio through such means as
multi-staging of the number of towers, recompressing steam, and introducing
multi-effect distillation. |
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10) |
Consideration
shall be given to increasing overall thermal efficiency by increasing
the number of heat exchangers used and improving their arrangement. |
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11) |
Consideration
shall be given to using heat at multiple stages and improving overall
thermal efficiency by such means as combining use of industrial furnaces
used at high temperatures and industrial furnaces used at low temperatures. |
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12) |
Efforts shall
be made to effectively utilize heat by improving methods of control
of facilities for heating, etc. |
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13) |
Consideration
shall be given to combining into a series, integrating, shortening
and partially omitting processes requiring repetition of heating,
etc. |
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14) |
Efforts shall
be made to increase the insulation efficiency of furnace walls to
achieve the target furnace wall external temperature specified in
Attached Table 2(B) for industrial furnaces. (In the case of intermittently
operating furnaces and industrial furnaces operated for not more than
12 hours per day whose internal temperature is at least 500°C, the
furnace wall external temperature specified in Attached Table 2(B)
must be achieved or at least 80% of the area of the furnace wall interior
must be composed of insulating material with a weighted average powder
density of not more than 0.75.) |
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15) |
Consideration
shall be given to increasing the insulation efficiency of heat-using
facilities by such as means as increasing the thickness of insulation
materials, using insulation materials with a low coefficient of thermal
conductivity, and using double insulation |
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16) |
Regarding the
apertures of heat-using facilities, consideration shall be given to
preventing heat loss caused by diffusion and inflow and outflow of
air by such means as reduction or sealing of apertures, installation
of double doors, and blockage of air flows from the interior |
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17) |
Consideration
shall be given to taking measures to prevent leakage of heat media
by, for example, applying seals to revolving parts and joint sections
of heat-using facilities. |
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18) |
Consideration
shall be given to reducing the radiation area by rationalizing the
routing of pipes for transportation of heat media. |
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19) |
Consideration
shall be given to reducing heat loss due to radiation or diffusion
of heat media by such means as covering facilities such as open steam-using
facilities and open equipment for transporting high-temperature materials.
However, this shall not apply in the case that air-cooling during
removal is required. |
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20) |
Regarding the
recovery and use of waste heat from exhaust gas, efforts shall be
made to reduce the temperature of waste gas and increase the waste
heat recovery rate to meet the target exhaust gas temperature and
waste heat recovery rate specified in Attached Table 3(B). |
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21) |
In the case
of action to rationalize energy use through prior removal of water
content, preheating, pre-crushing and other pretreatment of heated
materials, an investigation shall be made of methods of preliminary
treatment. |
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22) |
If in the case
of installation of heat-using facilities such as boilers and refrigerators
action is to be taken to rationalize energy use by reducing the size
and dispersing installation of facilities or installing thermal storage
facilities, consideration shall be given to the methods of doing so. |
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23) |
In the case
of installation of boilers, industrial furnaces and heating and drying
facilities using heat media such as steam and heated water, use shall
be made of facilities offering high thermal efficiency in light of
the temperature level used, and consideration shall be given to using
facilities of a capacity commensurate with required capacity according
to the operating characteristics and operating status of facilities
taking into consideration their characteristics and type. |
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24) |
In the case
of installation of heating facilities using hot water as a medium,
consideration shall also be given to heating by means of steam vacuum
media |