Cryogenic Equipment(극저온 장비)

NRS(Nitrogen Refrigerant System) Package

System Diagram and Main Product

1. 1Low Pressure FG Compressor

   Frame : SE45G/4

   Simple GMS configuration

   Relatively low pressure for re-liquefaction

   Relieves burden for extremely high pressure

2. 2Cryogenic Heat Exchanger

   Brazed Aluminum Heat Exchanger

   Widely used type in the liquefaction industry

   Optimized design for 4 stream heat exchanger

   High efficiency by recovering cold BOG energy

3. 3N₂ Compander

   Frame : SE-45N/4

   3-stage centrifugal compressor

   Single-stage expander

   Widely used technology in the industry

   Supplies main cold power to NRS
   through the Reverse Brayton Cycle

4. 4Nitrogen Refrigerant

   Easy to obtain on the ship

   Environmentally safe

   N₂ Inventory Tank for Load control

   Minimize refrigerant loss by recovery

한화파워시스템NRS® Package Line-up

Pilot Test

• NRS Pilot Test for LNG Carrier(Oct, 2021)
• The Pilot Test has been Successfully Completed

• 

  Cryogenic Heat Exchanger Skid
• 

  Nitrogen Compander Skid

Major Reference

Cargo Handling Equipment(LD/HD)

Fuel Gas Compressor(Low Duty Compressor)

• 선박 조건에 따른 2단(중압) 및
  4단(고압) 대응
• Ship-Class Certification
  for Marine Application
  (DNV / ABS)
• API 617/614/671 및 고객의
  민감한 요구에 따른 제품 대응
  (Oil Free Sealing System 등)
  
• 고효율, 고신뢰성의 제품으로
  선종 및 프로세스에 따른 라인업 보유

Line-up

Fuel Gas Compressor(Low Duty Compressor) Line-up

	Items	Unit	LDC1	LDC2
	Fluid	-	CH₄ 92%, N₂ 8%
	Flow	㎥ / hr	2,500 ~ 4,500	2,000 ~ 5,000
	Inlet Pressure	bar A	1.03
	Inlet Temperature	℃	-120
	Design Temperature	℃	-196
	Outlet Pressure	bar A	6.5(2Stage)	13(4Stage)

Vapor Return Compressor(High Duty Compressor)

• 넓은 운전 영역을 통해 다양한 조건에서
  원활한 Return 기능 수행
• 부대설비와 통한 공급으로 Total
  Solutions 제공
  (Vaporizer, Heater, separator)
• Integrally Geared 압축기로
  고신뢰성과 유지 보수 절감 기여
• 고효율, 고신뢰성의 제품으로 고객사
  사용 프로세스에 따른 제품 라인업 보유

Line-up

Vapor Return Compressor(High Duty Compressor) Line-up

	Items	Unit	HDC1	HDC2
	Flow	㎥ / hr	35,000	31,000
	Inlet Pressure	bar A	1.03	1.03 ~ 1.25
	Inlet Temperature	℃	-140.0
	Outlet Pressure	bar A	2.0

Cargo Tank Warm-up Compressors & Instrument Air Compressors

FLNG용 압축기

• 해양 Platform인 FLNG에 최적의 제품 설계 대응
• 고객사 설치 환경에 최적합한 솔루션 제공
• Offshore용 Certification 적용(DNV 선급 인증 등)

Major Reference