• Title/Summary/Keyword: Performance Evaluation of Facility

Search Result 330, Processing Time 0.027 seconds

Evaluation of Rapid filtration System with Particle Size Distribution and Turbidity in Different Effective Sizes

  • Park, J.A.;Eo, S.M.;Shin, J.S.;Kim, M.H.;Yu, M.J.;Chung, S.H.
    • Proceedings of the Korean Environmental Health Society Conference
    • /
    • 2005.06a
    • /
    • pp.381-385
    • /
    • 2005
  • Characterization of particle behavior is becoming more important in performance evaluation of water treatment system as well as in operation of the system because conventional parameter, turbidity has lack of explaining ability on small sized microorganisms such like Cryptosporidium etc. Accordingly, particle counter has been introduced in evaluation and operation of the treatment system. However researches on the relationship between turbidity, particle count and/or different sand/anthracite sizes have not been concurrent. Therefore in this study, the relationship was investigated to improve performance evaluation of sand filter so as to help choosing sand/anthracite effective size as a design parameter of water treatment facility. According to the results, too small or too large effective size media filter reached to turbidity limit(0.1 NTU)earlier. However, because shallow sand layer may cause early breakthrough, the depth of sand layer should be provided enough in order to compromise water quality and productivity.

  • PDF

Performance Analysis of Upgrading Process with Amine-Based CO2 Capture Pilot Plant

  • Kwak, No-Sang;Lee, Junghyun;Lee, Dong Woog;Lee, Ji Hyun;Shim, Jae-Goo
    • KEPCO Journal on Electric Power and Energy
    • /
    • v.4 no.1
    • /
    • pp.33-38
    • /
    • 2018
  • This study applied upgrades to the processes of a 10 MW wet amine $CO_2$ capture pilot plant and conducted performance evaluation. The 10 MW $CO_2$ Capture Pilot Plant is a facility that applies 1/50 of the combustion flue gas produced from a 500 MW coal-fired power plant, and is capable of capturing up to 200 tons of $CO_2$. This study aimed to quantitatively measure efficiency improvements of post-combustion $CO_2$ capture facilities resulting from process upgrades to propose reliable data for the first time in Korea. The key components of the process upgrades involve absorber intercooling, lean/rich amine exchanger efficiency improvements, reboiler steam TVR (Thermal Vapor Recompression), and lean amine MVR (Mechanical Vapor Recompression). The components were sequentially applied to test the energy reduction effect of each component. In addition, the performance evaluation was conducted with the absorber $CO_2$ removal efficiency maintained at the performance evaluation standard value proposed by the IEA-GHG ($CO_2$ removal rate: 90%). The absorbent used in the study was the highly efficient KoSol-5 that was developed by KEPCO (Korea Electric Power Corporation). From the performance evaluation results, it was found that the steam consumption (regeneration energy) for the regeneration of the absorbent decreased by $0.38GJ/tonCO_2$ after applying the process upgrades: from $2.93GJ/ton\;CO_2$ to $2.55GJ/tonCO_2$. This study confirmed the excellent performance of the post-combustion wet $CO_2$ capture process developed by KEPCO Research Institute (KEPRI) within KEPCO, and the process upgrades validated in this study are expected to substantially reduce $CO_2$ capture costs when applied in demonstration $CO_2$ capture plants.

Characteristic Evaluation of Industrial Radiant Tube Burner System with Oscillating Combustion Technology - NOx Reduction and Performance Improvement - (맥동연소기술을 적용한 산업용 복사관 버너시스템의 특성 평가 - NOx 저감 및 성능 향상 -)

  • Oh, Hyuk-Jin;Cho, Han-Chang;Cho, Kil-Won
    • Transactions of the Korean Society of Mechanical Engineers B
    • /
    • v.35 no.5
    • /
    • pp.539-545
    • /
    • 2011
  • Combustion characteristics of industrial radiant tube (RT) burners with forced oscillating combustion technology are investigated using a real-scale (125,000 kcal/h) industrial RT burner facility in both laboratory and field tests. Three different types of industrial RT burners using a by-product gas from the iron-and-steelmaking process are examined in a laboratory facility equipped with a W-type RT. During the field tests, an industrial RT burner is characterized in a large facility equipped with multiple RTs. Their performance and emission controls are investigated under diverse operating conditions. The feasibility of the forced oscillating combustion technology is evaluated by the extent of $NO_x$ reduction and the efficiency improvement. These improvements are able to save energy, extend the RT lifetime, and enhance productivity. The operating conditions that achieve the best performance and emission control for each RT burner are determined.

Project Performance Comparison Based on Different Types of Project Delivery System (사례연구 분석을 통한 발주방식별 성과비교)

  • Lee, Soo-Kyong;Jung, Young-Soo
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2011.05a
    • /
    • pp.207-209
    • /
    • 2011
  • Numerous reports show that alternative project delivery systems (PDSs) such as design-build (DB), construction management at risk (CMR), and design-build-maintain (DBM) are increasingly used in many countries. This study compared characteristics of each PDS (design-bid-build (DBB), DB, CMR, or DBM) by analyzing quantitative data from 9 research articles. In order to compare characteristics between DBB and alternative PDSs, the study is based on principal 3 factors - Time, Cost, and Quality. DB shows the best performance in the time part and also the cost performance depending on facility type and project size. The performance of quality has minor difference among different PDSs. These results support the fact that using an appropriate PDS by the characteristic of a project makes high value of efficiency and productivity.

  • PDF

A Study on Structural Performance by Condition Grade of Temporary Equipment (가설기자재 상태등급별 구조성능에 관한 연구)

  • Moon, Seong-Oh;Mo, Seung-Un;Youn, Ye-Bin
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2020.11a
    • /
    • pp.16-17
    • /
    • 2020
  • The Temporary construction refers to the construction or dismantling of temporary structures installed for the construction of the main structure at the construction site, and the members constituting this temporary facility are called temporary equipment. Temporary equipment used in construction sites is mostly used products that are reused rather than new products, and it is necessary to consider performance degradation due to repeated use. This study is a preliminary study to develop the performance evaluation criteria applied to temporary equipment that is distributed and reused for secondhand. This study is to analyze the performance status of temporary equipment of used goods owned by rental companies by condition grade through performance tests.

  • PDF

The criterion of reliability evaluation and the evaluation facility for composite insulator (폴리머 애자 신뢰성평가 기준 제정 방향 및 평가설비 구축)

  • Kim, I.S.;Kim, M.K.;Kim, I.K.;Kang, D.P.;Park, H.Y.;Han, D.H.;Shin, Y.J.
    • Proceedings of the KIEE Conference
    • /
    • 2001.05a
    • /
    • pp.147-148
    • /
    • 2001
  • The construction of reliability evaluation according to their fields was promoted under the supervision of Agency for Technology and Standards for establishing the relevant institution & infrastructure that can fundamentally solve the reliability problems, the biggest obstruction when the developed electric components & materials come into the market. This paper describes the criterion of reliability evaluation and the evaluation facilities for the purpose of heightening the reliability of composite insulator estimated as the new material among the electric components & materials. We will understand the criterion of reliability evaluation with two parts as the performance evaluation based on various kinds of standards (especially IEC) and as the long-term reliability evaluation utilizing the accelerated aging & flashover test methods. Therefore we aim for constructing the criterion of reliability evaluation as the foundation for evaluation so as to support the industrial group based on KERI facilities.

  • PDF

Analysis of the Productivity of Automobile Painting Process Using Computer Simulation (자동차 도장공정의 생산성 향상을 위한 시뮬레이션 분석)

  • 김원경
    • Journal of the Korea Society for Simulation
    • /
    • v.8 no.2
    • /
    • pp.73-85
    • /
    • 1999
  • In this paper, the productivity estimation of the painting line in an automobile plant is studied. To improve the bottleneck and the weak point of the process, computer simulations are performed. In determining the system specification, the status of the conveyor lines and the other physical facilities are considered in order not to intervene with each other and to satisfy the painting facility restrictions. As simulation parameters, production performance ratio, number of hanger and dolley, down time, speed of conveyor and the pitch of a painting body are chosen on the basis of exhaustive field evaluation to study their effects on the capacity of the process. The results of the simulation show that we can improve the capability of they system without additional investment to the plant facility. The best condition for the maximum capacity of the process is selected by comparing the alternative computer simulation results. As a simulation language, Promodel is used which is very useful and easy to use in manufacturing oriented simulation.

  • PDF

Checklist and Design Recommendations for the Interiors of Korean, Eco-healthy Childcare Facilities (우리나라 영유아 보육시설의 친환경 실내를 위한 체크리스트와 디자인안 제안)

  • Chun, Jin Hie
    • KIEAE Journal
    • /
    • v.10 no.6
    • /
    • pp.105-114
    • /
    • 2010
  • As children are known to touch and chew everything, green cleaning procedures are an important step in preventing children from ingesting harmful toxins. The objectives of this study are to develop a new, self-evaluation checklist and to suggest design recommendations which comply with easy, adaptable, economical ways to improve the eco-friendly indoor environment of Korean childcare facilities. The information compiled during this study was collected through literature review and internet surveys1) from July, 2009 to February, 2010. The results of this study show that the current Korean childcare accreditation system and practices emphasize clean building interiors, policies for sanitation and cleanliness, and control of humidity and lighting. On the other hand, the information provided by green-building rating systems from GBCC, LEED, and GBTool offers additional and comparative details regarding indoor environment quality and standards regarding the IAQ performance and management plan, ventilation and thermal comfort systems, views from windows, acoustics, and lighting. In conclusion, this document provides an appropriate and easy-to-follow, self-evaluation checklist composed of eight criteria and 51 practical items. This study also provides the design recommendations composed of 27 practical ideas focusing on interior elements. Both the checklist and design recommendations I have suggested can be a post-occupancy tool for evaluating eco-healthy facility standards as well as tips for continuing to maintain eco-healthy childcare facilities.

Performance Evaluation of Welding Method for Modular of High-Strength Reinforcing Bars to the Nuclear Power Plant Structures (원전구조물 고강도철근 모듈화를 위한 용접방법 성능평가)

  • Lim, Sang-Joon;Lee, Han-Woo;Kim, Hyeong-Seob;Bang, Chang-Joon
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2013.05a
    • /
    • pp.278-280
    • /
    • 2013
  • To minimize construction quantity of nuclear facility, it is required to reduce reinforcing bar amount and solve reinforcing bar concentration and for this, it is necessary to develop application design technology and modular of high strength reinforcing bar. Hence, KHNP reduces excessive reinforcing bar amount which can cause possibility of poor construction of concrete through design standard development and modular of nuclear facility structure using high strength reinforcing bar to raise economics and has its purpose to maintain high-level safety and durability as they are.

  • PDF

HY Simplified Synthetic Test Facility (한양대학교 간이차단 합성시험설비구축)

  • Chang, Yong-Moo;Hwang, Ryul;Kim, Cheol-Ho;Lee, Bang-Wook;Koo, Ja-Yoon
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2009.11a
    • /
    • pp.220-220
    • /
    • 2009
  • We are developing of the evaluation technique and system for testing the performance of circuit breaker using Simplified Synthetic circuit. This facility specification is up to 90[kApeak] and up to 300[kVpeak]. It is possible to verify the interrupting capability by using low-energy and reduce the development period and the cost.

  • PDF