- •Energy Saving Technologies Riga Technical University
- •Content
- •Introduction 10
- •1. Energy Saving Technologies in generation, conversion of electrical energy 11
- •Executive summary
- •Introduction
- •1.Energy Saving Technologies in generation, conversion of electrical energy
- •1.1.Cogeneration
- •1.1.1.Introduction
- •1.1.2.Performance indices of cogeneration systems
- •1.1.3.Types of cogeneration systems
- •Comparison of Fuel Cell Systems [12].
- •1.1.4.Distributed energy resources
- •Characteristics of cchp Systems [15].
- •References
- •1.2.Smart metering concept
- •1.2.1.Introduction
- •1.2.2.Communication concept of smart metering
- •1.2.2.1.Customer domain
- •1.2.2.2.Critical infrastructure energy domain
- •1.2.2.3.The utility business market communication domain
- •1.2.2.4.Third parties services - data analysis
- •Ip service provider’s domain
- •1.2.3.Wireless sensor networks in smart metering
- •1.2.3.1.Main characteristics of wireless sensor networks
- •1.2.3.2.Examples of application of wireless sensor networks
- •1.2.4.Security issues
- •1.2.5.The future of smart metering
- •1.3. Energy from biomass
- •1.3.1. Biomass resources
- •Yeld of Som Biomass Types [2].
- •Yield of Agricultural Residues [2].
- •1.3.1.Biomass conversion technologies
- •Characteristics of Solid Biofuels and their Effects.
- •Ultimate Analysis of Different Solid Biofuels (Dry Basis) [5, 6, 7].
- •Proximate Analysis of Solid Biofuels (Dry Basis) [5, 6, 7].
- •Characteristics of Compacted Biomass [2].
- •Higher Heating Value of Solid Biofuels [8, 9, 10].
- •Composition of Biomass Ash [5, 13].
- •Types of Biomass Furnaces [14].
- •Heat Capacity of Combustible Gas [17].
- •Contaminants in Combustible Gas: Problems and Cleanup Methods [17].
- •Syngas Quality Parameters.
- •Operating Parameters of Pyrolysis Processes.
- •1.4.Energy Storage
- •1.4.1.Introduction
- •1.4.2.Classification of energy storage technologies
- •Types of Energy Storage Technologies and Their Applications [2].
- •1.4.3.Characteristics of energy storage techniques
- •1.4.4.Direct electric storage
- •1.4.5.Electrochemical energy storage
- •1.4.6.Mechanical energy storage
- •The response time of sudden changes in electrical demand for power plants [5].
- •1.4.7.Thermal energy storage
- •Physical Properties of Sensible Energy Storage Media [7, 8]
- •Commercial Phase Change Materials which can be Used for Heat Storage in the Buildings [10].
- •Properties of Some Phase Change Materials Produced by eps Ltd, uk [11].
- •Properties of Some Phase Change Materials Produced by teap Energy, Australia [11].
- •Properties of some phase change materials (paraffins) produced by the Rubitherm GmbH Germany [11].
- •Chemical Storage Materials and Reactions [8].
- •Main Characteristics of Energy Storage Materials [8].
- •References
- •1.5.Waste heat recovery
- •1.5.1.Characteristics of waste heat
- •Sources of waste heat at high-temperature range [2].
- •Sources of Waste Heat at Medium-Temperature Range [2].
- •Sources of Waste Heat at Low-Temperature Range [2].
- •1.5.2.Waste heat recovery systems
- •Waste Heat Recovery Systems [3].
- •Heat Exchangers Characteristics.
- •References
- •1.6.Energy Saving Technologies of the Thermochemical Conversion of Biomass and lignocarbonaceous Waste
- •1.6.1.Introduction
- •1.6.2.Pyrolysis
- •1.6.3.1.2 Torrefaction
- •1.6.4.1.3 Fast pyrolysis
- •1.6.5.1.4. Flash and ultra-rapid pyrolysis
- •1.6.6.1.5. Solar driven pyrolysis
- •1.6 Pyrolizer types
- •1.7.Gasification
- •1.8. Poly-generation of heat, power and biofuel
- •1.9.Design of renewable energy systems for small (local) consumers - description of a software for design and examples of design exercises.
- •1.9.1.Introduction.
- •1.9.2.A software for design renewable energy systems.
- •1.9.3.Description of the polysun platform
- •1.9.3.1.Polysun modules
- •1.9.3.2.User Interface
- •1.9.3.2.1.Menu bar
- •1.9.3.2.2.Icon bar
- •1.9.3.2.3.Managing the project.
- •1.9.3.2.4.Project tools
- •1.9.4.Creating a project
- •1.9.4.1.Design steps of the simple solar system.
- •1.9.4.2.Design steps of the pv system.
- •1.9.5.Result analysis and reports
- •1.9.5.1.The results of simulation
- •1.9.5.2.Reports
- •1.9.6.Literature
- •Conclusion
- •2.Energy Saving Technologies in transmission, distribution of electrical energy Energy Cost and Power Loss Minimization in Distribution Networks with Distributed Generation
- •Introduction
- •2.1.Opf problem formulation for distribution networks
- •2.1.1.Objective function
- •2.1.2.Constraints
- •Dg units modeling for optimal power flow
- •Opf Solution Using Multi-objective Genetic Algorithm
- •Opf Solution Using Gravitational Search Algorithm
- •2.2.Dc transmission systems
- •3. Energy Saving Technologies: in industry
- •3.1. Electric Motors
- •3.2. Electrical Drives
- •3.1.Waste heat utilization technologies
- •Introduction
- •1 Sources of waste heat
- •2 Main definitions used for heat waste assessment
- •3 Using of waste heat for heating and hot water supply. Equipment for using of industrial waste heat
- •3.1 Closed-circuit schemes of waste heat utilization
- •3.2 Opened-circuit schemes of waste heat utilization
- •Indirect Contact Condensation Recover
- •4. Utilization of low-temperature heat waste
- •4.1 Heat pumps
- •Common types of industrial heat pumps
- •4.2 Applications of heat pumps in drying process
- •4.2.1 Closed-cycle mechanical heat pumps for lumber drying
- •4.2.2 Evaporation - open-cycle mechanical vapour compression (mvc) for sugar solution concentration
- •4.2.3 Thermo-compression for paper-dryer flash steam recovery
- •4.3 Heat pumps working fluids
- •5 Using of waste heat for power generation
- •5.1 The opportunity for waste heat to power generation
- •5.2 Applicable Technologies
- •5.3 Applications
- •Using of combustible waste
- •7 Economic efficiency analysis of heat waste utilization
- •4.Energy Saving Technologies: in public and private sector
- •4.1.Building: fundamental physical processes in buildings and building envelopes. Reduction of heat losses. Heating and conditioning. Heat pumps.
- •5.Supercapacitors
- •Viesturs Brazis
- •5.1.Supercapacitor energy storage
- •5.1.1.Introduction
- •5.1.2.Supercapacitor design
- •5.1.3.Supercapacitor energy storage systems
- •5.1.4.Simulation of supercapacitor energy storage system
- •5.1.5.Ess scaling
- •5.1.6.Conclusions
- •5.1.7.Tasks
- •References
- •5. Standartisation and legal bases on existing Energy Saving Technologies
- •5.2.Introduction
- •5.3.Legistlative base mandatory for eu Member states
- •5.4.Legistlative base non - mandatory for eu Member states
- •5.5.Eu supported actions for development of Energy Saving Technologies
- •5.6.Iso 50001 - Energy management
- •5.7.Conclusions
- •References
5. Standartisation and legal bases on existing Energy Saving Technologies
Leonids Ribickis, professor
Nadezhda Kunicina, associate professor
Riga Technical University
5.2.Introduction
EU Directives on Energy Efficiency [2], on Promotion of the use of energy [3] Energy Effective Lighting [4], and Energy Performance of Buildings Directive [6] are described; the main concept and application areas as well as benefits from using those concepts are described in the chapter. RTU Leonids Ribickis, Nadezhda Kunicina, 50
The standartisation in the field of energy saving technologies could be devided into the national international and mandatory and non mandatory.
International standarts IEEE [5]:
Standards are published documents that establish specifications and procedures designed to maximize the reliability of the materials, products, methods, and/or services people use every day. Standards address a range of issues, including but not limited to various protocols to help maximize product functionality and compatibility, facilitate interoperability and support consumer safety and public health.
Standards form the fundamental building blocks for product development by establishing consistent protocols that can be universally understood and adopted. This helps fuel compatibility and interoperability and simplifies product development, and speeds time-to-market. Standards also make it easier to understand and compare competing products. As standards are globally adopted and applied in many markets, they also fuel international trade.
IEEE voluntary international standarts and protocols are internationally recognized practiceis, as example IEEE 802.3 is a working group and a collection of IEEE standards produced by the working group defining the physical layer and data link layer's media access control (MAC) of wired Ethernet. IEEE 802.3 IEEE 802.3af - Power over Ethernet.
ISO is International Organization for Standardization provides voluntary International Standards.The most relevant standarts are ISO 50001 and ISO 14000 Environmental management. ISO/IEC JTC 1 is Joint Technical Committee 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It deals with all matters of information technology.
The International Telecommunication Union (ITU), originally founded as the International Telegraph Union, is a specialized agency of the United Nations that is responsible for issues that concern information and communication technologies. The ITU coordinates the shared global use of the radio spectrum, promotes international cooperation in assigning satellite orbits, works to improve telecommunication infrastructure in the developing world, and assists in the development and coordination of worldwide technical standards.
ITU also organizes worldwide and regional exhibitions and forums, such as ITU TELECOM WORLD, bringing together representatives of government and the telecommunications and ICT industry to exchange ideas, knowledge and technology.
The objective of European standardization is to agree on common specifications and/or procedures that respond to the needs of business and meet consumer expectations.
Standards are a part of the knowledge economy that underpins European industry and society. They facilitate innovation and promote the adoption of new technologies.
European Standardization is a key instrument for the consolidation of the Single Market and for strengthening the competitiveness of European companies, thereby creating the conditions for economic growth.
European Standards are a valuable tool for facilitating cross-border trade – both within Europe’s single market and also with the rest of the world. They reduce un-necessary costs for both suppliers and purchasers of products and services – in the public and private sectors.
Standards can be used to improve safety and performance, raise levels of energy efficiency, and protect consumers, workers and the environment. They complement European and national policies in these areas, and make it easier for companies and other actors to respect relevant legislation.
CEN and CENELEC are international non-profit associations. They are officially recognised as European Standards Organisations (alongside ETSI, the European Telecommunications Standards Institute).
CEN, CENELEC and their national members and committees work jointly to develop and define standards that are considered necessary by market actors and/or to support the implementation of European legislation.
A majority of European Standards are initiated by business and developed in partnership with other stakeholders. Around 30% are mandated by the European Commission in the framework of EU legislation.
The European Standardization System is unique in the world. After the publication of a European Standard, each national standards body or committee is obliged to withdraw any national standard which conflicts with the new European Standard. Hence, one European Standard becomes the national standard in all the 33 member countries of CEN and/or CENELEC.
ETSI is basically a factory that produces some of the best ICT standards on the market. The contractors are Members in the majority of cases, sometimes EU policy makers (for mandated work).
In both cases, a work item is being created within (or channelled to) a technical committee.
NOTE: In ETSI it is sufficient that 4 members decide to start a new work item to set the machine into motion.
In European Union of Energy efficiency concept, in particular development technological solutions fostering energy saving concept deployment in practical applications is one of the strategical priorities.
The main body in EU, coordinating EU strategy development is Directorate-General for Energy (DG Ener). DG Ener also internally the abbreviation ENER is used is a Directorate-General of the European Commission. The DG Ener is in operation since 17 February 2010 when it was split from the Transport DG (now The Directorate-General for Mobility and Transport (DG MOVE)) (it has been merged with transport since 2000).
Mission DG Ener is focused on creating a competitive internal energy market to lower prices, to develop renewable energy sources, to reduce energy dependence and to reduce energy consumption [7]. There are a set of strategic reference documents as well as leagle basis of Energy sector development leading by DG Ener. There are two types of docements first: directives, which must be obligatory deploed in national legistlationa and implemented in European member states; second type all other documents, like Energy Roadmap 2050 [7], which is a recommendation from EU commission.
It is essential, then, for the European Union (EU) to address the major energy challenges facing us today, i.e. climate change, our increasing dependence on imports, the strain on energy resources and access for all users to affordable, secure energy. The EU is putting in place an ambitious energy policy - covering the full range of energy sources from fossil fuels (oil, gas and coal) to nuclear energy and renewables (solar, wind, biomass, geothermal, hydro-electric and tidal) - in a bid to spark a new industrial revolution that will deliver a low-energy economy, whilst making the energy we do consume more secure, competitive and sustainable.
The energetics sector [http://europa.eu/legislation_summaries/energy/index_en.htm] is wide, and covers such areas as:
Energy policy for Europe, Market-based instruments, Energy technologies, Financial instruments Internal energy market;
The market in gas and in electricity, Trans-European energy networks, Infrastructure, Security of supply, Public procurement, Taxation;
Energy efficiency;
Energy efficiency of products, Buildings and services;
Renewable energy;
Electricity, Heating and cooling, Biofuels;
Nuclear energy;
Euratom, Research and technology, Safety, Waste;
Security of supply, external dimension and enlargement;
Security of supply, External relations, European Energy Charter, Treaty establishing the Energy Community, Enlargement.
