초록 ▼

수직형 정수시설 실증시설(1,000㎥/일)의 운영을 통하여 본 연구에서 개발한 직결-수직형 정수처리공정의 성능평가 및 검증이 수행되었으며, 통합운영관리시스템을 비롯한 신재생에너지 및 효율화 기술(태양광시스템, 수온차시스템, 소수력설비, DC배전 등) 개발 및 검증을 통하여 운영과 경제성을 고려한 분산형 용수공급시스템 운영유지관리 기술 확보
● 신재생에너지 활용 및 에너지 효율화기술개발을 통한 에너지 효율화율 30% 이상 달성
태양광시스템, 소수력발전시스템 및 수온차시스템 등 신재생에너지 기술을 개발하고, DC배전 구축을

수직형 정수시설 실증시설(1,000㎥/일)의 운영을 통하여 본 연구에서 개발한 직결-수직형 정수처리공정의 성능평가 및 검증이 수행되었으며, 통합운영관리시스템을 비롯한 신재생에너지 및 효율화 기술(태양광시스템, 수온차시스템, 소수력설비, DC배전 등) 개발 및 검증을 통하여 운영과 경제성을 고려한 분산형 용수공급시스템 운영유지관리 기술 확보
● 신재생에너지 활용 및 에너지 효율화기술개발을 통한 에너지 효율화율 30% 이상 달성
태양광시스템, 소수력발전시스템 및 수온차시스템 등 신재생에너지 기술을 개발하고, DC배전 구축을 비롯한 클라우드 컴퓨팅과LED 조명제어등 에너지 효율화기술을 개발함은 물론, 정수공정의최적 운영압력제어기술등을적용하여에너지효율화율44%달성
● 오차 및 해킹 보안성이 확보된 용수 및 에너지 통합운영관리시스템 개발
통합운영관리시스템의 프로그램 에러율과 해킹건수 제로화로 안정적인 통합운영 기술 개발, 클라우드기반의 의사결정지원시스템으로 분산시설의 운영유지관리 효율성 확보
● Pico급 소수력 발전설비 개발
수직형 정수시설의 저낙차와 저유량 환경에 적합한 피코급 소수력 발전시스템을 개발하고 목표효율보다 높은 효율 66%의 모델 수차성능을 검증
● 수직형 정수시설 수온차시스템 효율향상 및 활용기술 개발
목표 COP 2.5이상급의 고효율 수온차 냉난방 시스템의 설계 및 제작을 통하여 난방운전시 운전 COP 2.9 그리고냉방운전시운전COP 3.7 을실제운전을통하여검증하고막여과CIP 연계기술개발
● 수직형 실증시설 공정 효율성 검증 및 feedback을 통한 요소기술의 실 규모 설계
플랜트의 효율성(수리, 수질, 에너지) 검증 및 실 규모(20,000㎥/일) 설계 feedback

Abstract ▼

The decentralized water supply system is installed at the nearest place to consumers to shorten the time for delivering treated water to consumers and to reduce secondary pollution of the water implement a facility network to enable safe and stable water supply. Unit processes arranged as layers for

The decentralized water supply system is installed at the nearest place to consumers to shorten the time for delivering treated water to consumers and to reduce secondary pollution of the water implement a facility network to enable safe and stable water supply. Unit processes arranged as layers for water treatment are a resident-friendly landmark which is harmonized with its surroundings. They can be a building type in a city to be laid out as a tower in the underground of parks or facilities.
Th decentralized water treatment system employs a vertical treatment system in order to reduce the size of required ground. This system also tankless technology which does not need storage tanks between unit processes, pressure treatment process, membrane filtering which is the latest treatment technology, and processes of ozone, activated carbon and UV sterilization.
For efficient use of energy consumed for treatment, the system uses various
renewable energy technologies including a solar photovoltaic power generator, a small hydropower generation system which uses the difference between treatment facilities and a cooling and heating system uses a raw water source heat pump. The facility also applies verified efficient energy technology including DC distribution, u-IT control, and a highly efficient pump to reduce approximately 30% of consumed energy.
In this research, the performance verification of directed coupled vertical-type water treatment demonstration plant(1,000㎥/day) which constructed in cheong-ju WTP was carried out for 1 year. Also various core technologies on renewable energy and low energy consuming equipment for energy efficiency ratio of 30% were developed and verified.
❚ Performance verification of direct coupled multi story water treatment plant
Demonstration plant(1,000㎥/day) constructed in cheong-ju WTP was operated for 1 year. Demonstration plant consisted of membrane filtration(UF), ozone, granular activated carbon(GAC) and UV disinfection. Various test was conducted to verify performance of plant in aspect of hydraulic, water quality and energy efficiency.
In hydraulic evaluation, high operating pressure was unnecessary in spite of multi story. optimal operating pressure in economic was approximately 1 kgf/㎠. Negative pressure at outlet of membrane facility was generated by siphon effect.
In water quality evaluation, produced water was suitable for potable water quality standards.
In energy efficiency evaluation, Electricity consumption for 6 group(UF, O3, GAC, UV and operating facility and heat pump) was measured respectively.
Major problem during the operation period was not found. The evaluation results are fed back to the design and reflected in the real scale plant(20,000㎥/day) design.
❚ Renewable energy and energy efficiency technologies
First, a strategy for energy efficiency was established to propose a means of optimal composition and system connection for each renewable energy source. Optimal algorithm for each Renewable energy source was deduced using MATLAB to develop a tool for efficiency analysis. In addition, mock system modeling was performed using PSCAD to evaluate the effect of system connection.
Second, DC distribution system combined with ubiquitous was designed and applied to increase efficiency of LED light control and process control. The effects of implementation of DC distribution was analyzed using MATLAB, and energy efficiency was increased by dimming control and motion control of LED light.
Third, photovoltaic systems were designed and constructed on the rooftop and wall of vertical water purification facility. To design the photovoltaic system to be installed on rooftop, solar radiation, annual power generation, circuit composition of photovoltaic generation and installation interval were determined. 10kW rooftop PV and 5kW wall BIPV systems were designed.
Renewable energy technologies such as photovoltaic system, small hydropower system and water temperature difference system were developed, as well as cloud computing for DC distribution and energy efficiency technologies such as LED light control.
Conclusively, energy efficiency rate of 44% was accomplished by application of various energy related and optimal pressure control in plant operation.
❚ Integrated management system for water and energy
First, water treatment technology in was developed and applied through optimal process operation. Diagnosis of membrane filter process and reaction capability to fluctuation in flow were evaluated to cope with fluctuation in flow. In addition, a process control algorithm was developed for automatic monitoring control on the overall process.
Second, an optimal integrated management system for water and energy was established to operate distributed water supply system. The integrated system was designed based on cloud computing to promote efficient operation of resources and reduce operation energy. The designed and manufactured energy management system was applied at the site to confirm propriety.
❚ Pico Hydropower System
First, the type of the hydropower system that is able to use in the vertical-type water treatment facility has been selected after various CFD simulations for an optimum propeller horizontal axis water turbine.
Second, a model test facility has been constructed to verify the performance of the developed pico hydropower system. According to an international standard of IEC 60193 / JIS B 8103, the model turbine and test facility has been designed and manufactured. The test facility is composed of an upper tank, a lower water tank, an inlet tank, a tailrace tank, an inverter pumping system, and so on.
Third, a pico hydropower system has been manufactured to be able to install in a 20,000 ton/day capacity vertical water treatment facility. Based on international standards the prototype hydropower system was developed to satisfy the performance at the rated condition under the test procedure.
Through this process a pico hydropower system has been designed and developed to use under low head and low flow rate condition in a vertical water treatment facility, and it is verified that its maximum efficiency of 66% is over the target efficiency.
❚ Water-Source Heat Pump System
First, an integrated model has been developed by modeling of heat pump components and heat source. Seasonal characteristics were analyzed by collecting measured data from a large number of water treatment plants, and component device modeling with ESS and integrated system modeling with TRNSYS have been carried out based on the measured data.
Second, a high-efficiency water-source heat pump system has been designd and constructed in the test site. The system is composed of a water-to-water type heat pump, a buffer tank, various pumps for raw water, brine, and circulating water, and FCU, and flow meters, RTD temperature sensors, and power meters have been installed to analyze its performance.
Third, the additional application except in addition to the air-conditioning has been proposed. The system has been designed and constructed to connect the CIP heat energy process in the vertical water treatment facility.
Finally the high efficiency water-source heat pump system over the target COP of 2.5 has been designed and constructed, and the high efficiency performance, the heating COP of 2.9 and the cooling COP of 3.7, has been verified by the operation at the test site.

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 보고서 요약서 ... 4
• 요 약 문 ... 6
• SUMMARY ... 14
• CONTENTS ... 18
• 목차 ... 20
• 표 차례 ... 22
• 그림 차례 ... 26
• 제 1 장 연구개발과제 개요 ... 34
• 제 1 절 연구개발의 목적 및 필요성 ... 34
• 1. 연구개발의 목적 ... 34
• 2. 연구개발의 필요성 ... 35
• 제 2 절 연구개발의 정의, 범위, 특징 ... 37
• 1. 연구개발의 정의 ... 37
• 2. 연구개발의 범위 ... 38
• 제 3 절 관련분야의 국내외 기술개발 현황 ... 44
• 1. 국내 기술개발 현황 ... 44
• 2. 국외 기술개발 현황 ... 61
• 제 2 장 연구개발 수행 내용 및 결과 ... 96
• 제 1 절 연구수행 전략 및 방법론 ... 96
• 1. 연구수행 전략 ... 96
• 1. 신재생에너지 생산설비 ... 101
• 2. 에너지 효율화 설비 ... 105
• 3. 운영관리시스템(Operating System) ... 113
• 제 2 절 연구수행과정 및 내용 ... 132
• 1. 신재생에너지 생산설비 ... 132
• 2. 에너지 효율화 설비 ... 197
• 3. 운영관리시스템(Operating System) ... 291
• 제 3 절 연구수행결과 및 결과의 검증 방법 ... 325
• 1. 수직형 정수처리 플랜트 효율성 검증 ... 325
• 2. 신재생에너지 생산설비 ... 371
• 3. 에너지 효율화 설비 ... 399
• 4. 운영관리시스템(Operating System) 구축 및 효율성 평가 ... 416
• 5. 유입수 수질모니터링 및 비상대응 타당성 ... 432
• 6. 분산형 정수처리시스템의 유량변동 대응기술 개발 ... 442
• 7. 에너지 효율화율 평가 ... 466
• 제 3 장 최종 연구성과 및 적용실적 ... 474
• 1. 피코급 소수력 발전설비 및 수차시험설비 개발 ... 474
• 2. 수온차 냉난방 시스템 효율증진 및 연계기술개발 ... 475
• 3. 태양광시스템 시공 및 검증 ... 476
• 4. DC배전 시스템 구현 ... 477
• 5. USN기반 데이터 취득 시스템 구현 ... 478
• 6. 운영관리시스템 프로그램 개발 및 오류 허용 오차 ... 479
• 7. 해킹건수 ... 480
• 제 4 장 연구목표 달성 및 효과 ... 482
• 제 1 절 연구개발 최종목표 달성도 ... 482
• 제 2 절 연구개발 성과의 기술적 효과분석 ... 485
• 제 3 절 연구개발 성과의 경제적 효과분석 ... 487
• 제 4 절 연구개발 성과의 정책적 효과분석 ... 489
• 제 5 장 연구성과의 활용 및 추가연구 필요성 ... 490
• 제 1 절 연구성과 향후 활용방안 ... 490
• 제 2 절 추가연구 필요성 ... 491
• 참고문헌 ... 492
• 부 록 ... 498
• 끝페이지 ... 503