Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635749
E. Sosnina, A. Shalukho, I. Lipuzhin, Alexander Yu. Kechkin, A. A. Voroshilov
The article is devoted to the construction of the Virtual Power Plant (VPP) distribution network (DN), which unites sources of distributed generation and a centralized electrical network. Graph theory and structural-topological analysis are used to determining the optimal VPP DN topology. The main idea is to assess the reliability and efficiency of VPP DN on the basis of structural-topological characteristics of its graphs. The results of calculations for a low-voltage VPP DN with a wind power plant and a gas piston unit are presented. The PSCAD model of VPP DN is described, which explores the dependencies of VPP DN parameters on its topologies and operating modes. A physical model VPP DN has been developed: it consists of simulators of wind and solar power plants, power storage devices, loads and power lines. On the basis of the physical model, a study of the quality of electricity in VPP DN depending on the ratio of the power of the centralized electrical network and the distributed generation sources has been carried out. Based on the results of the study, an algorithm for determining the optimal VPP DN topology has been developed.
{"title":"Optimization of Virtual Power Plant Topology with Distributed Generation Sources","authors":"E. Sosnina, A. Shalukho, I. Lipuzhin, Alexander Yu. Kechkin, A. A. Voroshilov","doi":"10.23919/ICUE-GESD.2018.8635749","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635749","url":null,"abstract":"The article is devoted to the construction of the Virtual Power Plant (VPP) distribution network (DN), which unites sources of distributed generation and a centralized electrical network. Graph theory and structural-topological analysis are used to determining the optimal VPP DN topology. The main idea is to assess the reliability and efficiency of VPP DN on the basis of structural-topological characteristics of its graphs. The results of calculations for a low-voltage VPP DN with a wind power plant and a gas piston unit are presented. The PSCAD model of VPP DN is described, which explores the dependencies of VPP DN parameters on its topologies and operating modes. A physical model VPP DN has been developed: it consists of simulators of wind and solar power plants, power storage devices, loads and power lines. On the basis of the physical model, a study of the quality of electricity in VPP DN depending on the ratio of the power of the centralized electrical network and the distributed generation sources has been carried out. Based on the results of the study, an algorithm for determining the optimal VPP DN topology has been developed.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"54 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80179499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635741
P. Suwagul
Methane is one of the E&P products with a Global Warming Potential about 25 times greater than carbon dioxide, any company that is able to reduce the methane emissions will gain environmental benefits and strengthen its reputation. For PTTEP, it has annually disclosed its greenhouse gas (GHG) emission performances to relevant parties. In 2016 the direct emissions disclosed were 4.6 million tonnesCO2e, of which about 5% were contributed by methane. PTTEP had initiated the methane survey campaigns for emphasizing the emission reduction. The campaign used an infrared camera and a high volume sampler for effectively identifying and quantifying the emission volumes, which in 2016 about 11,000 tonnesCO2e per year were detected. PTTEP has adopted the results for improving the GHG performance reporting. Normally, the methane emissions were obtained from a calculation; thus, with the survey results PTTEP was able to improve the methane emission performances by 60%.
{"title":"Robust Methane Reduction Campaigns for Strengthened Greenhouse Gas Management","authors":"P. Suwagul","doi":"10.23919/ICUE-GESD.2018.8635741","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635741","url":null,"abstract":"Methane is one of the E&P products with a Global Warming Potential about 25 times greater than carbon dioxide, any company that is able to reduce the methane emissions will gain environmental benefits and strengthen its reputation. For PTTEP, it has annually disclosed its greenhouse gas (GHG) emission performances to relevant parties. In 2016 the direct emissions disclosed were 4.6 million tonnesCO2e, of which about 5% were contributed by methane. PTTEP had initiated the methane survey campaigns for emphasizing the emission reduction. The campaign used an infrared camera and a high volume sampler for effectively identifying and quantifying the emission volumes, which in 2016 about 11,000 tonnesCO2e per year were detected. PTTEP has adopted the results for improving the GHG performance reporting. Normally, the methane emissions were obtained from a calculation; thus, with the survey results PTTEP was able to improve the methane emission performances by 60%.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"95 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79051246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635763
A. Hoang, T. Nguyen, M. Nguyen
Electrostatic Precipitators are usually put into service after a complete shut-off of oil supply to the boiler burners of the furnace of a coal-fired power plant. However, such practice may lead to enormous dust concentration in the flue gas (design value is 37.9 g/Nm³ at 50%RO load) and heavy black smoke appearing at the stack outlet during the oil and/or co-fuel firing condition of boiler. To minimize such problem, an experimental study on charging and electrostatic precipitator operation during unit start-up and shut-down was carried out to verify de-dusting performance. It requires the manual control of the secondary voltages to be lower than sparking voltage of 10~15kV in case of oil and/or co-fuel firing condition of boiler. The study results prove that the electrostatic precipitator runs normally with good de-dusting performance (about 56.4 mg/Nm3 at unit start-up and within 31 mg/Nm3 at unit shut-down) and meets the Vietnamese environmental emission requirements as per proposed specified rules. From the study results, it can be predicted that Electrostatic Precipitators (ESP) & Sea-Flue Gas Desulphurization System (FGD) may be kept running during house load operation and run-back modes. Also, with the ESP and FGD running, the coal-fired power plant may not be limited to the loading dispatch at stable loads under co-firing condition below the minimum load of anthracite coal firing as required from power system.
{"title":"Experimental Verification of Electrostatic Precipitator Stable Operation Under Oil and Co-fuel Firing Conditions of a Coal-fired Power Plant","authors":"A. Hoang, T. Nguyen, M. Nguyen","doi":"10.23919/ICUE-GESD.2018.8635763","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635763","url":null,"abstract":"Electrostatic Precipitators are usually put into service after a complete shut-off of oil supply to the boiler burners of the furnace of a coal-fired power plant. However, such practice may lead to enormous dust concentration in the flue gas (design value is 37.9 g/Nm³ at 50%RO load) and heavy black smoke appearing at the stack outlet during the oil and/or co-fuel firing condition of boiler. To minimize such problem, an experimental study on charging and electrostatic precipitator operation during unit start-up and shut-down was carried out to verify de-dusting performance. It requires the manual control of the secondary voltages to be lower than sparking voltage of 10~15kV in case of oil and/or co-fuel firing condition of boiler. The study results prove that the electrostatic precipitator runs normally with good de-dusting performance (about 56.4 mg/Nm3 at unit start-up and within 31 mg/Nm3 at unit shut-down) and meets the Vietnamese environmental emission requirements as per proposed specified rules. From the study results, it can be predicted that Electrostatic Precipitators (ESP) & Sea-Flue Gas Desulphurization System (FGD) may be kept running during house load operation and run-back modes. Also, with the ESP and FGD running, the coal-fired power plant may not be limited to the loading dispatch at stable loads under co-firing condition below the minimum load of anthracite coal firing as required from power system.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"18 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85196823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635648
Raghavender D. Goud, R. Rayudu, C. Moore, Tony Auditorey
A reliable and robust earthing system design is critical for the lightning protection system of a wind turbine. This paper presents an analysis of the wind turbine earthing impedance and potential rise for a horizontal multi-layer soil model in the event of a direct lightning strike on the wind turbine generator. The influence of soil resistivity and lightning current wave shapes on the wind turbine grounding impedance are analysed. The results show that the wind turbine earthing system is more vulnerable to high frequency components of the lightning strikes. The other findings highlight the impact of soil resistivity values and frequencies over the impedance and potential distribution of the wind turbine generator earthing system.
{"title":"An Evaluation of Potential Rise in a Wind Turbine Generator Earthing System During a Direct Lightning Strike","authors":"Raghavender D. Goud, R. Rayudu, C. Moore, Tony Auditorey","doi":"10.23919/ICUE-GESD.2018.8635648","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635648","url":null,"abstract":"A reliable and robust earthing system design is critical for the lightning protection system of a wind turbine. This paper presents an analysis of the wind turbine earthing impedance and potential rise for a horizontal multi-layer soil model in the event of a direct lightning strike on the wind turbine generator. The influence of soil resistivity and lightning current wave shapes on the wind turbine grounding impedance are analysed. The results show that the wind turbine earthing system is more vulnerable to high frequency components of the lightning strikes. The other findings highlight the impact of soil resistivity values and frequencies over the impedance and potential distribution of the wind turbine generator earthing system.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"16 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81168211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635777
Khalid Anwar, S. Deshmukh
Prediction and assessment of wind speed are necessary prerequisites in the sitting and sizing of wind power applications. In this study, an artificial neural network (ANN) model was developed for prediction of wind energy potential in Andhra Pradesh (AP) and Telangana state (TS), India. ANN models are ‘black-box’ modelling technique, with capability to perform nonlinear mapping of a multidimensional input space onto another multidimensional output space without the knowledge of the dynamics of the relationship between the input and output spaces. The geographical parameters (latitude, longitude and altitude) and the month of the year were used as input data, while the monthly mean wind speed was used as the output of the network. Geographical and meteorological data of 30 cities in AP and TS of 20 years (1995–2015) by the India meteorological department, Pune (IMD-Pune) database were used for the training and testing the network. The testing data were not used in the training of the network in order to give an indication of the performance of the system at unknown locations. Statistical error analysis in terms of mean absolute percentage error (MAPE) was conducted for testing data to evaluate the performance of ANN model.
{"title":"Evaluation and Mapping of Wind Energy Potential over Southern Part of India using ANN and GIS Approach","authors":"Khalid Anwar, S. Deshmukh","doi":"10.23919/ICUE-GESD.2018.8635777","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635777","url":null,"abstract":"Prediction and assessment of wind speed are necessary prerequisites in the sitting and sizing of wind power applications. In this study, an artificial neural network (ANN) model was developed for prediction of wind energy potential in Andhra Pradesh (AP) and Telangana state (TS), India. ANN models are ‘black-box’ modelling technique, with capability to perform nonlinear mapping of a multidimensional input space onto another multidimensional output space without the knowledge of the dynamics of the relationship between the input and output spaces. The geographical parameters (latitude, longitude and altitude) and the month of the year were used as input data, while the monthly mean wind speed was used as the output of the network. Geographical and meteorological data of 30 cities in AP and TS of 20 years (1995–2015) by the India meteorological department, Pune (IMD-Pune) database were used for the training and testing the network. The testing data were not used in the training of the network in order to give an indication of the performance of the system at unknown locations. Statistical error analysis in terms of mean absolute percentage error (MAPE) was conducted for testing data to evaluate the performance of ANN model.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"39 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90738765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635666
Pholapatara Ratanasopitkul
In 2008 Blockchain became known by Whitepaper by Satoshi Nakamoto, author of the article "Bitcoin: A Peer-to-Peer Electronic Cash System." Blockchain technology facilitates peer-to-peer transactions without the intermediary, which is safe and trust.Blockchain is a data structure that makes it possible to create a digital ledger of transactions and share it among a distributed network of computers, continuously updated simultaneously and secure with encryption.Furthermore, blockchain uses cryptography to allow each participant on the network to manipulate the ledger in a secure way without the need for a centralized trusted party. Since the Bitcoin protocol is open source. This concept has led to the idea develop of smart contract.Blockchain technology can apply in non-Financial Uses which have application examples in many industries include energy sector. Energy Sector can apply this technology from grid management to retail & customer experience that will transformation to new business model.
{"title":"Blockchain – Revolutionize Green Energy Management","authors":"Pholapatara Ratanasopitkul","doi":"10.23919/ICUE-GESD.2018.8635666","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635666","url":null,"abstract":"In 2008 Blockchain became known by Whitepaper by Satoshi Nakamoto, author of the article \"Bitcoin: A Peer-to-Peer Electronic Cash System.\" Blockchain technology facilitates peer-to-peer transactions without the intermediary, which is safe and trust.Blockchain is a data structure that makes it possible to create a digital ledger of transactions and share it among a distributed network of computers, continuously updated simultaneously and secure with encryption.Furthermore, blockchain uses cryptography to allow each participant on the network to manipulate the ledger in a secure way without the need for a centralized trusted party. Since the Bitcoin protocol is open source. This concept has led to the idea develop of smart contract.Blockchain technology can apply in non-Financial Uses which have application examples in many industries include energy sector. Energy Sector can apply this technology from grid management to retail & customer experience that will transformation to new business model.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"31 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77735239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635736
D. Pamungkas, M. Pipattanasomporn, S. Rahman, N. Hariyanto, Suwarno
This paper discusses and compares three alternatives to reduce electrical energy consumption (kWh) and peak demand (kW) in buildings, namely deployment of rooftop solar PV, battery energy storage and HVAC set point adjustments. The building model of a warehouse located in Alexandria, VA, was developed in eQUEST, and its electrical consumption was validated with metered data. To perform the overall analysis, adjustment of HVAC set points was conducted in eQUEST, while Solar PV and battery models were developed and deployed on top of the developed eQUEST building model. Overall, the method presented here can serve as a guideline for building owners to analyze energy savings/peak demand reduction alternatives, of which benefits are varied from buildings to buildings based on building sizes, electricity tariffs, climate zones and building operation.
{"title":"Impacts of Solar PV, Battery Storage and HVAC Set Point Adjustments on Energy Savings and Peak Demand Reduction Potentials in Buildings","authors":"D. Pamungkas, M. Pipattanasomporn, S. Rahman, N. Hariyanto, Suwarno","doi":"10.23919/ICUE-GESD.2018.8635736","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635736","url":null,"abstract":"This paper discusses and compares three alternatives to reduce electrical energy consumption (kWh) and peak demand (kW) in buildings, namely deployment of rooftop solar PV, battery energy storage and HVAC set point adjustments. The building model of a warehouse located in Alexandria, VA, was developed in eQUEST, and its electrical consumption was validated with metered data. To perform the overall analysis, adjustment of HVAC set points was conducted in eQUEST, while Solar PV and battery models were developed and deployed on top of the developed eQUEST building model. Overall, the method presented here can serve as a guideline for building owners to analyze energy savings/peak demand reduction alternatives, of which benefits are varied from buildings to buildings based on building sizes, electricity tariffs, climate zones and building operation.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"65 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76146629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635785
Ming-Jong Lin
There is critical equipment operating on the power system such as oil-immersed transformers and circuit breaker, the equipment must be maintained strictly on a regular basis to ensure reliability supply. Any maintenance or accident case of equipment must be fully documented, and safety guarded, but a lot of maintenance record reported forms adopted paper form version for saving, so that some shortcomings have been found such as difficulty in saving and finding data. Another severe deficiency that could not be directly diagnosed with the advantages or disadvantages of the equipment is during the test. To improve the deficiency in conventional recorded paper, a novel record reported form is been designed with the application software of EXCEL in a personal computer. The computerized reported form is proven to improve those shortcomings. Specialty, punctual display of equipment is normal or abnormal during the test. This maintenance record reported form consist of two types of function – one is to establish a maintenance record form to diagnose, print, and save storage, and another browse historic data and print using EXCEL application software. This clearly highlights the model’s report form superiority and can hence assist in circumventing the shortcomings of the conventional paper form of maintenance record on important equipment. To meet the policy of reducing paper use and to cater to the trend of the data storage for small space, prompt efficiency work for maintenance time, to find data, and record data. Especially, it can obtain the result of diagnosis for the equipment during maintenance period timely. This approach will contribute few efforts for the stability and quality of power supply in power system.
{"title":"Maintenance Record Reported Form Computerized Using a Personal Computer","authors":"Ming-Jong Lin","doi":"10.23919/ICUE-GESD.2018.8635785","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635785","url":null,"abstract":"There is critical equipment operating on the power system such as oil-immersed transformers and circuit breaker, the equipment must be maintained strictly on a regular basis to ensure reliability supply. Any maintenance or accident case of equipment must be fully documented, and safety guarded, but a lot of maintenance record reported forms adopted paper form version for saving, so that some shortcomings have been found such as difficulty in saving and finding data. Another severe deficiency that could not be directly diagnosed with the advantages or disadvantages of the equipment is during the test. To improve the deficiency in conventional recorded paper, a novel record reported form is been designed with the application software of EXCEL in a personal computer. The computerized reported form is proven to improve those shortcomings. Specialty, punctual display of equipment is normal or abnormal during the test. This maintenance record reported form consist of two types of function – one is to establish a maintenance record form to diagnose, print, and save storage, and another browse historic data and print using EXCEL application software. This clearly highlights the model’s report form superiority and can hence assist in circumventing the shortcomings of the conventional paper form of maintenance record on important equipment. To meet the policy of reducing paper use and to cater to the trend of the data storage for small space, prompt efficiency work for maintenance time, to find data, and record data. Especially, it can obtain the result of diagnosis for the equipment during maintenance period timely. This approach will contribute few efforts for the stability and quality of power supply in power system.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"83 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82064199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635673
E. Lerch, M. Bokhari, F. Jennrich
Virtual Power Plants (VPP) are one of the most important concepts today for offering flexible control and management of distributed generation and load resources for supporting grid operation. By virtue of aggregating flexible negative and positive generation resources, or 'flex', into a single portfolio and offering it to entities who are customers of 'flex', the VPP needs to offer different value propositions to different customers. For utilities, cities, residential communities, industry parks, or clusters of small & medium enterprises, a VPP not only offers grid stability, new revenue sources, and a more sustainable and greener future, it also raises the question: How can different entities come together to foster the VPP concept and realize a common value creation network. This paper proposes a structured and methodical framework for evaluating the frame conditions, designing multiple VPP conceptual models for different value chain segments, and finally, creating integrated VPP conceptual models that can be used as starting points for detailed financial and operational planning.
{"title":"A Framework for Developing VPP Conceptual Models: From Multiple Dimensions and Stakeholders, Towards a Unified Perspective","authors":"E. Lerch, M. Bokhari, F. Jennrich","doi":"10.23919/ICUE-GESD.2018.8635673","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635673","url":null,"abstract":"Virtual Power Plants (VPP) are one of the most important concepts today for offering flexible control and management of distributed generation and load resources for supporting grid operation. By virtue of aggregating flexible negative and positive generation resources, or 'flex', into a single portfolio and offering it to entities who are customers of 'flex', the VPP needs to offer different value propositions to different customers. For utilities, cities, residential communities, industry parks, or clusters of small & medium enterprises, a VPP not only offers grid stability, new revenue sources, and a more sustainable and greener future, it also raises the question: How can different entities come together to foster the VPP concept and realize a common value creation network. This paper proposes a structured and methodical framework for evaluating the frame conditions, designing multiple VPP conceptual models for different value chain segments, and finally, creating integrated VPP conceptual models that can be used as starting points for detailed financial and operational planning.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"35 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76053975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635690
A. M. Thakare, S. Deshmukh
The use of solar energy for environmental control is receiving much more attention as a result of the projected world energy shortage. Cooling is particularly attractive as a solar energy application because of the near coincidence of peak cooling loads with available solar power.This paper describes the performance analysis of intermittent solar adsorption cooling system with composite adsorbent and water as a refrigerant. The composite adsorbent used in the system is 25 % activated carbon and 75 % silica gel. The system consists of adsorption container integrated with solar flat plate collector with absorber area of 0.9 m2 and contains a porous adsorbent medium. The other components of the system are condenser, evaporator, cooling cabinet and valves. The system works on the thermodynamic adsorption cycle.The cooling load of 10 liters of water at a temperature of 35 degree Celsius was introduced in the cooling cabinet before the start of cycle. At the beginning of each test the adsorbent was heated with the help of solar energy. The chilled water with temperature reduction of 77 % is produced. The solar coefficient of performance of 0.088 and the cooling coefficient of performance is 0.83 is obtained for 10 liters of water load.
{"title":"Performance Analysis of Solar Powered Adsorption Cooling System","authors":"A. M. Thakare, S. Deshmukh","doi":"10.23919/ICUE-GESD.2018.8635690","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635690","url":null,"abstract":"The use of solar energy for environmental control is receiving much more attention as a result of the projected world energy shortage. Cooling is particularly attractive as a solar energy application because of the near coincidence of peak cooling loads with available solar power.This paper describes the performance analysis of intermittent solar adsorption cooling system with composite adsorbent and water as a refrigerant. The composite adsorbent used in the system is 25 % activated carbon and 75 % silica gel. The system consists of adsorption container integrated with solar flat plate collector with absorber area of 0.9 m2 and contains a porous adsorbent medium. The other components of the system are condenser, evaporator, cooling cabinet and valves. The system works on the thermodynamic adsorption cycle.The cooling load of 10 liters of water at a temperature of 35 degree Celsius was introduced in the cooling cabinet before the start of cycle. At the beginning of each test the adsorbent was heated with the help of solar energy. The chilled water with temperature reduction of 77 % is produced. The solar coefficient of performance of 0.088 and the cooling coefficient of performance is 0.83 is obtained for 10 liters of water load.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79897978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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