Energy Recovery System for Container Vessels
22Pages

MITSUBISHI ENERGY RECOVERY SYSTEM FOR CONTAINER VESSELS MITSUBISHI HEAVY INDUSTRIES, LTD. NAGASAKI SHIPYARD & MACHINERY WORKS MARINE MACHINERY DESIGN DEPARTMENT

MERS (Mitsubishi Energy Recovery System) for Container Vessels - CONTENTS – 1. HISTORY OF MERS (Mitsubishi Energy Recovery System) 2. ADVANTAGES & FEATURE OF MERS Established STG whole system by One Design Dep’t Component of each equipments for STG whole system 3. INTRODUCTION OF RESPECTIVE SYSTEM Eco-TG (Economizer – Steam Turbine Generator) STG (Super Turbo Generating System) PTG (Power Turbine Generator) Hybrid Turbocharger Generating System 4. COMPARISON OF APPLICATION FOR EACH SYSTEMS For Comparison for 8K98ME-C & 12K98ME-C For Comparison for Generated output For Comparison for...

MERS (Mitsubishi Energy Recovery System) for Container Vessels 1. HISTORY OF MERS (Mitsubishi Energy Recovery System) Transition of MERS for Motor Vessels SETS OF STEAM TURBINE GENERATOR 50 45 Single press. Dual press. Dual press. Hot water flush 40 STG 35 STG 30 25 20 15 10 5 0 1970 1975 1980 1985 1990 1995 2000 2005 Since the 1973 oil shock, various energy-saving system adoption for plants was considered and waste heat recovery generator had been actively introduced. However, fuel-saving main diesel engine has appeared into market, hull body and diesel engine design was improved to save...

MERS (Mitsubishi Energy Recovery System) for Container Vessels Production record of MERS • Conventional Eco-TG : Total over 300 ships • Hot Water Flush Steam Generating System : Total 19 ships For VLCC For Container : 8 ships For PCC • : 9 ships : 2 ships Steam Turbo Generating System (STG : whole system) : Total 4 ships For VLCC • : 4 ships Steam Turbo Generating System (STG : Only for Power turbine) : Total 12 ships For Container : 12 ships 2

MERS (Mitsubishi Energy Recovery System) for Container Vessels Introduction of typical system (Hot Water Flush Steam Generator Turbine) 120℃ Ship service steam LP steam Economizer LP steam separator Mixed fluid of steam and hot water is separated to Steam and hot water. Flush Turbine Heating service Generator HP steam Condenser Aux. Boiler Hot water flusher Energy of the separated hot water will be recovered by steam turbine through the Hot water Flusher Booster pump 36℃ Sea water Condensate pump Suction air 250℃ Boiler water circulating Pump Feed water pump 90℃ Main Engine Engine...

MERS (Mitsubishi Energy Recovery System) for Container Vessels Introduction of Eco-TG system diagram USE TYPE DRIVING GENETATOR TURNBINE + GENETAL SERVICE MONO PRESS.(NOT PREHEATER) DUAL PRESS. DUAL PRESS. DUAL PRESS.(NOT PREHEATER) MARK-Ⅰ MARK-ⅡA MARK-ⅡS 170℃ 180℃ 145℃ 150℃ 158℃ 100 95 115 120 115 1.T/G driving the generator turbine and service steam are covered on a voyage. 1. The tube corrosion without concern because there is no preheating section. 1. T/G driving the generator turbine (High-pressure superheater steam) and service steam (Low-pressure saturated steam) are covered on a...

MERS (Mitsubishi Energy Recovery System) for Container Vessels 2. ADVANTAGE & FEATURE OF MERS Established STG whole system by One Design Dep’t One design dep't can establish the whole system with single supplier & responsibility Number of designer150 Turbo charger designing section ⇒ Turbocharger, Power turbine Marine boiler designing section M/E ⇒ Economizer SGM ~ Marine turbine designing section ⇒ Steam turbine generator Ship service power G ~ D/G G ~ G ~ G ~ D/G To economizer Cyoryo control system Marine control system dep’t dep’ ⇒ Shaft generator / motor Power management system PMS D/G...

MERS (Mitsubishi Energy Recovery System) for Container Vessels Component of each equipments for STG whole system DCS or IAS By shipyard By MHI sub vendor Power Management System Mitsubishi Heavy Industries STG system Generator Steam turbine Power turbine * : MHI supply all relevant equipment by SINGLE RESPONSIBILITY as package for STG Exh. gas boiler Main engine STG 0 Gen. / Motor Shaft By shipyard ・MAN B&W ・Wartsila ・MHI-UE By MHI sub vendor Diesel Generator 1 : MHI’s Scope of supply Diesel Generator 2 Diesel Generator 3 6

MERS (Mitsubishi Energy Recovery System) for Container Vessels Eco-TG (Economizer – Steam Turbine Generator) (1) System diagram of Eco-TG without gas bypass Scavenge air cooler Exhaust gas 4.0k x sat. Central cooling water 4.0k LP Drum Economizer 21,700kg/h x 135℃ 7.5k x sat. x 5,500kg/h 7.0k x 233℃ 6.5k x 228℃ x 10,400kg/h Ship service load HP Drum Main Engine 3.5k x sat. x 5,800kg/h S/T2,150 kWe Generator=2,150 kWe Gland condenser 16,200kg/h x 38℃ Condenser Suction air Main engine jacket cooler 21,700kg/h x 41℃ 586,800kg/h x 248.5℃ 7.5k 41℃ Atoms. Drain tank 7 Feed water pump Turbocharger

MERS (Mitsubishi Energy Recovery System) for Container Vessels (2) System diagram of Eco-TG with gas bypass Scavenge air cooler Exhaust gas 4.0k x sat. Central cooling water 4.0k LP Drum Economizer 32,150kg/h x 135℃ 7.5k x sat. x 5,500kg/h 7.0k x 294℃ 6.5k x 289℃ x 21,500kg/h Ship service load HP Drum Main Engine 3.5k x sat. x 5,150kg/h S/T4,000 kWe Generator=4,000 kWe Gland condenser 26,650kg/h x 38℃ Condenser Suction air Main engine jacket cooler 32,150kg/h x 41℃ 525,240kg/h x 309.4℃ 7.5k 41℃ Atoms. Drain tank 8 Feed water pump Turbocharger

MERS (Mitsubishi Energy Recovery System) for Container Vessels (3) Outside view of AT52 type steam turbine generator Main oil pump Local gauge board Oil cooler Turning device Gland seal system Lube oil temp. control valve Oil press. control valve Control oil strainer Aux. oil pump Reduction gear Steam turbine Generator Common bed Oil tank 9 Lube oil strainer

MERS (Mitsubishi Energy Recovery System) for Container Vessels (4) The condition of FAT (Factory Acceptance Test) Generator Steam turbine Reduction Gear Oil Pump Oil Strainer Common Bed with Oil Tank Oil Cooler 10

MERS (Mitsubishi Energy Recovery System) for Container Vessels STG (Super Turbo Generating System) (1) System diagram of STG Scavenge air cooler Exhaust gas 4.0k x sat. Central cooling water 4.0k LP Drum Economizer 26,700kg/h x 135℃ 7.5k x sat. x 5,500kg/h 7.0k x 274℃ SSS clutch 6.5k x 269℃ x 16,300kg/h 497,160kg/h x 289.5℃ 7.5k Ship service load HP Drum Main Engine 3.5k x sat. x 4,900kg/h S/T3,160 kWe Suction air Main engine jacket cooler P/T2,450 kWe 26,700kg/h x 41℃ Generator=5,610 kWe Gland condenser 21,200kg/h x 38℃ Condenser 41℃ Atoms. Drain tank 11 Feed water pump Turbocharger