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energy demand/supply management and energy saving technology development in the field of building, transportation, industry

º High efficiency complex drying systemand heat recoverysystem, Alkali metal thermal to electric conversion, Ultra-fine particles electro-spray wet process, etc.

º Research for improving an energy supply/demand/transfer efficiency based on ICT

convergence technology and conduct a research on energy integration management and operation for improving energy reliability

º ICT convergence energy optimizationand energy saving, distributed powergeneration, micro-gridand smart-grid, intelligent energy harvesting future technology, etc.

º Research on efficient conversion technologiesof heat-heat/heat-electricity/

electricity-heat, and thermal energy utilization system including fossil and synthetic fuel combustion with an aim for efficient using high/low temperature thermal energy

º Future power generation, oxy-fuel combustionapplication, heat-pumpapplication, excess enthalpy combustion, etc.

초임계C O2터빈 및 발전 시험장치 세계 최초 축류형 초임계C O2터빈-발전기

º Research for improving an energy utilization efficiency and reduce the greenhouse gas emission by realizing the optimal energy management system in physical/virtual energy network unit

º Smart energy network, development and performance evaluation of the cogeneration plant,

high efficiency and low emission boilersystem, etc.

º Research on developing a materials technology overcoming limitations in order for improving market-oriented materials technology and next generation energy sector (needed for industry)

º Materials based on nano such as solar PV, thermoelectricity and secondary battery, etc.

and separation materials based on various gas membrane for maximizing an industry efficiency

º Research on various cross-cutting technologies and convergence research on energy technologies such as AMTEC, SOFC/PEMFC, SOEC, carbon composites for high- temperature application and catalyst/adsorbents using a metal organic hybrid material

º Vision to become a global leader in materials and components commercialization with high efficiency and performance based upon energy/environmental technology (ET) and nanotechnology (NT)

Apartment

Apartment Residential

house Commercial

Building

Heat elevation

Geothermal /solar source

Other low exergy heat

sources

temperature Low heat pumps

Middle temp.

thermal storage

Supply water return

Residential/Commercial Thermal Station

Low temp.

thermal storage Heat

degradation

Heating water Cooling water

Supply water return

•Low temperature thermal network

- Minimization of combustive heat production facilities - Short-distance network using heat pump systems

Heat source for residential/

commercial thermal station - Distributed heat source supply - Geothermal/solar heat

- Urban low exergy heat sources : City water, apartment sewage water, underground water

Connecting unused low T. heat/energy to demand

Heat pump thermal energy storage

IEA Energy Technology Prospect for Building Energy 2010

• Vision on 3-core technologies for Building Energy sector

• Each BLUE prospects building energy will be

supported mainly by Heat Pump, Solar Thermal and CHP

Heat Pump

Solar thermal

CHP

Boiler

(95% Thermal Efficiency)

105 100

Hot water supply

Heat Pump

(COP_H= 3.0)

100 33

Combined

cycle plant 66

Nuclear /Renewable

power

0

City Gas Primary Energy

1

Thermal Energy Electricity

2

3

Thermal Energy

Heating Type Primary

Energy

Primary conversion

efficiency

Secondary conversion efficiency

CO₂ emission

(%)

Combustion

Based

①

Gas-fired boiler 105 N/A 0.95 (thermal)

100

Oil-fired boiler 125 N/A 0.8 (thermal)

119

Combined Heat and Power

+ Heat Pump 66 0.32 (power)

0.55 (thermal) 3.0 (COP

_H

)

63.1

Heat Pump Based

②

Combined cycle

power plant 60 0.56 (power) 3.0 (COP

_H

)

56.7

③

Nuclear/Renewable

energy power plant 0 N/A 3.0 (COP

_H

)

0

Best case : Active renewable thermal energy + Heat Pump

* All the primary energy was calculated based on the supplying thermal energy to be 100 as shown above diagram.

•

•

80 ℃

45 ℃

• Large-scale heat pump plant

.. Huge amount

vs. nearly zero applicability - Heat pump

.. Source: sewage water .. Sink: heating and hot water

Network between Sewage and Heating

office T

T

P supply header return header chiller(100RT)

cooling tower

boiler(1ton)

winter : 10^oC summer : 25^oC treated sewage water

office T

T

P T P

T T

T T

P supply header return header flowmeter

flowmeter

flowmeter

heat exchanger

Chiller(100RT) cooling

tower

Heat Pump (100RT)

evaporator condenser T T

T T Heat Pump Heating : 437kW Cooling : 107USRT

T

T P

thermal storage heat exchanger T

(Before)

- 120RT Chiller (cooling tower) - 1 ton Boiler

(After)

- 100RT 2-stage Screw Heat pump (cooling & heating)

- Sewage water

Sewage HEX

High temp.

process Middle temp.

process Steam process

High temperature

heat pumps

temperature Low heat pumps

Middle temp.

thermal storage

Low temp.

thermal storage

Plant A

Plant B

Plant C plant CHP

Wastes/

Fuels

Geothermal /solar source

Other low exergy heat

sources Steam

generator

Heat elevation

Middle temp.

process

Middle temp. water Low temp. water

Industrial Thermal Station

•Combustive energy from biomass/waste fuels to produce high

temperature supply for industrial thermal station

- Heat exchange network design - Ultra high temperature heat pump - Waste heat storage

Heat source samples for industrial thermal station

- Heat sources of residential/

commercial thermal station - Industrial waste heat - Wastes/biomass fuels - Sewage treatment center

•

Heating, drying, distillationAir ConditioningProcess Cooling

Factory Central/Stand-alone Air Drying

Machining Oil-Cooling,

Quenching Tank Cooling

Ethyl Alcohol

Purification Drying Sterilization

Mould- prevention, Fermentation

TemperatureLow Brittle Fracture

Mould Cooling

Textiles Dye Process

Drying

Laminate Processed Paper Drying

Reaction Vessel Cooling Reaction Management

Product Preservation Rice Cooling RefrigerationMilk Fermentation

Tank Freeze Drying

Ice cream Agricultural

Product Freezing

Textile Humidity

ControlSink Temperature Control, Offset Roller Cooling, Glaze Process

Cooling Optical Disc

Substrate Cleaning Clean Room

Humidity Control

Temperature Distribution in Industrial Processes

• Industrial

•

Current Heat Flow

- Centralized

Separated heating and cooling - Large transport loss

Thermal Energy Network Direction

1) Matching refrigeration and heating demands 2) Matching discharge (lower T.)

and processes (higher T.)

→ Energy saving

& Utilities optimization

• Thermal Network 1

• Thermal Network 2

•

•

Water-fluidized-bed Heat exchanger

Moderate temperature Heat pump

Process waterhot

Water-fluidized-bed Heat exchanger Heat pump Control/ monitoring system HP cycle analysis

(Lotte food Co. Ltd.)

•

Boiler steam D rain Boiling flask

D rain W ater Steam

Boiling flask

H eat Pum p (Steam /Steam d rain)

Source Preheater

Therm al N etw ork

(H o t)

120℃

0℃ 50℃

Building a TEN in malt boiling process by introducing a steam heat pump

Boiler steam Drain Boiling flask

Drain

Coolant Exhaust

Boiling flask

High Temperature Heat Pump Source

90℃

120℃

Source

Steam Boiler Dome

Chimney

Waste heat

Process

Steam

Heat Storage 70~80℃

PumpHeat Steam

Pipeloss Pressure Loss

• Advantages

- High efficient heat pump system (vs. boiler)

- Reduction of transport loss by distribution of devices

가압수온도(℃) 109.2 플래싱탱크 온도(℃) 106.9 생산 스팀온도(℃) 104.5 응축기압력(bar,g) 16.4 증발기압력(bar,g) 2.7 폐열원온도(℃) 60

Waste Heat(℃) 70.4 55.3 Lower temp.

Steam(℃ ) 119.6 115.2 Process demand

Capacity(kW) 364 348 Due to lower waste heat temp.

R² = 0.321

R² = 0.1149 R² = 0.282

0 5 10 15 20 25 30

-20 -10 0 10 20 30 40

N4 전력사용량(기저부하 제외) N1 전력사용량(기저부하 제외) E1 전력사용량(기저부하 제외)

다항식(N4 전력사용량(기저부하 제외)) 다항식(N1 전력사용량(기저부하 제외)) 다항식(E1 전력사용량(기저부하 제외))

Sensors Field devices

Monitoring Room (Eco. Bld.) Honeywell Server(EBI)

OPC Query

Energy Center (N2-107)

LabView DSC

Excel 방재실

라우터 2연구동 라우터 UTP

cable

HVAC Monitoring

Router

Monitor Simulator

(Web based EMS)

New/Renewable Energy Monitoring (own protocol) I/O

Data Logger (Honeywell)

Data Logger Data Logger

Routers

Research Bld.

Research Bld.

Research Bld.

TCP/IP TCP/IP

OPC client OPC

server OPC client

PHD

Modbus

server Modbus

client

cableUTP

DB

Plant Monitoring (Siemens -> GE SR489)

Electricity Monitoring (Honeywell Niagara)

연구원 자체 개발 앱 연구원 자체 개발 앱 연구원 자체 개발 앱

•

Heat pump-based thermal station concept Thermal station-based TEN concept

KIER 3025 project planning Sea water source heat pump Industrial heat pumps (<100℃)

KIER Energy Center

Steam generation heat pump

Local EMS for uni-directional thermal energy supply system with a local source

EMS for bi-directional thermal energy network Renewable-hybrid

KIER 3025 project completion

μ

Grid-scale demonstrative

R&D planning

•Fuel : Coal

•Boiler capa. : 10 MWth

•Generating capa. : 2 MWe

<Heat Supply Plant>

•Double effect Absorption Chiller : 2 units

•Fuel : LNG, (Steam)

Plant

EES

Solar + Geothermal Network (250RT)

Micro-grid

•Thermal grid

•New & Renewable electricity grid

•Low U-value of walls & windows

•Low energy lighting system