Aisin AW Co., Ltd. - ECCJ

More documents

Recommendations

Info

National Convention of Excellent Examples in Energy Conservation for Fiscal 20042004_PCECCJ_12_Aisin_AW_Co.,_Ltd.Fuel (LNG)Central MonitoringDeviceMBR DeviceNo2. GT Cogenerator7210kWElectricityNo1. GT Cogenerator7210kWExtraction CondensingTurbineElectricityGeneratorSteamTemperatureDetectorExtracted Steam(0.6MP – 0.8MPSteam ExtractionPressure Control ValveSteamCondenserHeat ExchangerCooling TowerTo the SupplyWater TankFlow RateControlTo Existing Absorptiontype ChillersPressure and Flow Rate DetectorCoolingWaterTemperatureDetectorSteam Absorptiontype ChillerTemperature DetectorTurbo type ChillerTemperatureDetectorChilled/HotWater for AirConditioningFig. 12 shows an example of controlling using MBR unit, considering deterioration of thesteam absorption type chiller. Even when the cooling load is the same, required extractedsteam pressure (required pressure) may be different due to deterioration of the chiller, andextraction pressure that fits the deterioration is required.By introducing MBR unit to determine optimum extraction pressure according to the currentpredicted characteristics of the chiller obtained from the actual data, we succeeded toprevent excess operation of turbo (electric) chiller whose total efficiency is poor and predictthe true values at earliest for efficient control. (Steam absorption type chillers are givenpriority for operation)10
National Convention of Excellent Examples in Energy Conservation for Fiscal 20042004_PCECCJ_12_Aisin_AW_Co.,_Ltd.MBR DeviceInputExample of Control: Controlling Extraction PressureConsidering Deterioration of Steam Absorption Type ChillerOutputPressureDataTwo YearsAgoLast YearCurrent PredictedCharacteristicsDirection of ExtractionPressureTemperatureDataFlow RateDataMost AppropriateExtraction Pressure PointExtraction Pressure (MPa)Effect of IntroductionIncluded in Case Studies 1 and 2(4) Case Study 4: Using steam for heat source of the cleanser inmanufacturing lineWe replaced electric heaters that are used as heat source for cleansing process of themanufacturing lines with steam heaters to improve utilization according to TPO (time, placeand occasion). In addition, to prevent deterioration of work environment due to use of steamfor heating, all steam drain is recovered and used for heating supply water of exhaust heatboilers.1) Facilities that can be replaced with steam in our companyFacility Technology Cost EffectHeat Sourcefor AirConditioning○ ○ ○CleansingMachine○ ○ ○Oil InjectionSystem○ ○ △Heat source for air conditioning and cleansing machinesthat are effective in technology, cost, and effect(However, two heat sources for air conditioning areadopted on the premise that their lives are updated.)11
Page 1 and 2: National Convention of Excellent Ex
Page 9: National Convention of Excellent Ex

Aisin AW Co., Ltd. - ECCJ

Create successful ePaper yourself

Delete template?

Save as template?