A District Heating Socio-Technical System Approaching the Energy Transition

2021 ◽  
pp. 61-83
Author(s):  
Osman Arrobbio ◽  
Dario Padovan ◽  
Alessandro Sciullo
Keyword(s):  
District Heating ◽  
Energy Transition ◽  
Technical System ◽  
Full Potential ◽  
Urban District ◽  
Technical Problems ◽  
Energy Data ◽  
Funded Project ◽  
Technical Systems ◽  
Collaboration And Communication

This chapter describes the results of a sociological investigation carried out within an EU-funded project. The project was aimed at creating a tool to visualise and compute energy data at an urban district level, with the broader aim to optimise the local district heating (DH) network's distribution policies. This chapter identifies the features of the main categories of actors (from the DH operator to final users) having a role within that network. Special attention is paid to the identification of the barriers and frictions preventing a stronger collaboration and communication among these actors to happen. It is argued that the identification and resolution, in situated and complex socio-technical systems, of these non-strictly-technical problems may be, at least in some cases, a pre-requisite for any ICT-based solution to deploy its full potential.

scholarly journals Bottlenecks, Modules, and Dynamic Architectural Capabilities

2018 ◽  
Author(s):  
Carliss Y. Baldwin
Keyword(s):  
Property Rights ◽  
Value Creation ◽  
Technical System ◽  
Maximum Effect ◽  
Organizational Boundaries ◽  
Value Capture ◽  
Technical Problems ◽  
Technical Architecture ◽  
Complex Technical System ◽  
Technical Systems

How do firms create and capture value in large technical systems? In this paper, I argue that the points of both value creation and value capture are the system’s bottlenecks. Bottlenecks arise first as important technical problems to be solved. Once the problem is solved, Then the solution in combination with organizational boundaries and property rights can be used to capture a stream of rents. The tools a firm can use to manage bottlenecks are, first, an understanding first of the technical architecture of the system; and, second, an understanding of the industry architecture in which the technical system is embedded. Although these tools involve disparate bodies of knowledge, they must be used in tandem to achieve maximum effect. Dynamic architectural capabilities provide managers with the ability to see a complex technical system in an abstract way and change the system’s structure to manage bottlenecks and modules in conjunction with the firm’s organizational boundaries and property rights.

Multicriterial Optimization of Technical Systems Considering Multiple Load and Availability Scenarios

2015 ◽  
Vol 807 ◽  
pp. 247-256 ◽  
Author(s):  
Lena C. Altherr ◽  
Thorsten Ederer ◽  
Philipp Pöttgen ◽  
Ulf Lorenz ◽  
Peter F. Pelz
Keyword(s):  
System Design ◽  
Cost Effective ◽  
Optimization Methods ◽  
Technical System ◽  
Multicriterial Optimization ◽  
Fluid Systems ◽  
Rule Number ◽  
Technical Systems ◽  
Multiple Load ◽  
Modern Optimization

Cheap does not imply cost-effective -- this is rule number one of zeitgeisty system design. The initial investment accounts only for a small portion of the lifecycle costs of a technical system. In fluid systems, about ninety percent of the total costs are caused by other factors like power consumption and maintenance. With modern optimization methods, it is already possible to plan an optimal technical system considering multiple objectives. In this paper, we focus on an often neglected contribution to the lifecycle costs: downtime costs due to spontaneous failures. Consequently, availability becomes an issue.

DIGITAL DESIGN OPTIMIZATION OF A COMPLEX TECHNOLOGICAL SYSTEM

2021 ◽  
Vol 3 ◽  
pp. 85-90
Author(s):  
A.R. ABLAEV ◽  
E.V. KHROMOV ◽  
R.R. ABLAEV ◽  
A.P. POLYAKOV
Keyword(s):  
Design Optimization ◽  
Level Structure ◽  
Phenomenological Approach ◽  
Digital Design ◽  
Technical System ◽  
Software Support ◽  
Complex Technical System ◽  
Complex Optimization ◽  
Complex Technical Systems ◽  
Technical Systems

The article investigates the issue of optimization of a complex technical system at the stage of its design using a heuristic–phenomenological approach. The analysis of the principles of complex optimization of complex technical systems is carried out. A four–level structure for the synthesis of methodological, informational and software support for complex optimization of complex technical systems is proposed, which will allow controlling the programmable parameters of complex technical systems at each stage of their design.

scholarly journals Probabilistic-deterministic approach of controlling the functionality of a technical system in normal and emergency operation modes

2018 ◽  
Vol 226 ◽  
pp. 04008
Author(s):  
Vladimir M. Zababurin ◽  
Marina A. Egorova ◽  
Yuliya A. Polyakova
Keyword(s):  
Open Systems ◽  
System Development ◽  
Emergency Situation ◽  
Emergency Operation ◽  
Technical System ◽  
Emergency Situations ◽  
Recovery Processes ◽  
Current State ◽  
Self Organized Criticality ◽  
Technical Systems

The main disadvantages of the existing methods of managing the current state of technical systems are revealed. A non-standard approach is proposed for managing the functionality of the system in emergency situations. The character of the dynamics of the recovery processes of the technical system is determined as its state approaches the emergency one on the basis of the recommendations of the theory of self-organized criticality (SOC). The physical criteria for assessing the current state of the technical system are revealed. The rationale for using the physical indicator of the functional destabilization of the system is given. The signs of the pre-emergency state of the technical system are considered. A grapho-analytical model for the development of an emergency situation has been developed. The fact of the inevitable increase in the entropy of the system upon its transition to an emergency state is established. Structuring of the system development process in an emergency situation is carried out in three stages. The methodology for estimating the pre-emergency state of complex open systems is presented. The advantages of the proposed approach to managing the state of technical systems in comparison with traditional ones are established.

Conversion Technologies: The Challenges for the MARTIN Reverse-Acting Grate System

2007 ◽  
Author(s):  
Ralf Koralewska
Keyword(s):  
Bottom Ash ◽  
District Heating ◽  
Practical Experience ◽  
Engineering Technology ◽  
German Market ◽  
Technical Problems ◽  
Regulatory Policies ◽  
Market Shares ◽  
Economic Constraints ◽  
Conversion Technologies

Thermal treatment of waste differs significantly from the combustion of regular fuels due to the fluctuating and unpredictable composition of the fuel. It is therefore necessary to develop processes with safe process engineering technology that guarantee the treatment of waste in accordance with ecological and economic constraints in addition to complying with international legal requirements. Various important factors have to be considered: not only the reduction of the volume and mass of waste and the destruction and separation of pollutants, but also the efficient energy production (electricity and district heating) and the guaranteed treatment of all waste. In order to comply with strict Japanese regulatory policies, particularly with regard to residue quality and overall output of organic substances, grate technology was modified by means of downstream melting processes that are intensive in terms of maintenance, energy and resulting costs. While vitrification of bottom ash and fly ash does improve quality and provide additional recycling possibilities, it has not proven sustainable. Conversion technologies using separated high-temperature processes make integrated production of granulated slag possible. Large market shares in Japan were gained as a result. However, practical experience in largescale plants has shown serious drawbacks with regard to availability, profitability and process safety. The use of alternative waste conversion technologies failed on the German market due to massive technical problems and considerable financial losses for all those involved.

scholarly journals A Simple Approach to Modeling Rural and Urban District Heating

2018 ◽  
Vol 6 ◽  
Author(s):  
Ian Brocklebank ◽  
Stephen B. M. Beck ◽  
Peter Styring
Keyword(s):  
District Heating ◽  
Simple Approach ◽  
Urban District ◽  
Rural And Urban

Semantic Analysis and Text Summarization in Socio-Technical Systems

2017 ◽  
pp. 243-281 ◽  
Author(s):  
Nina Rizun
Keyword(s):  
Decision Making ◽  
Text Mining ◽  
Semantic Analysis ◽  
Text Summarization ◽  
Technical System ◽  
Synergy Effect ◽  
Decision Making Processes ◽  
Multi Level ◽  
Technical Systems

In this chapter, the authors present the results of the development the text-mining methodology for increasing the reliability of the functioning of Socio-technical System (STS). Taking into account revealed strengths and weaknesses of Discriminant and Probabilistic approaches of Latent Semantic Relations analysis in of the abstracting and summarization projection, the Methodology of Two-level Single Document Summarization was developed. The Methodology assumes the following elements of novelty: based on obtaining a multi-level topical framework of the document (abstracting); uses the synergy effect of consistent usage the combination of two approaches for identification of conceptually significant elements of the text (summarization). The examples demonstrating the basic workability of proposed Methodology were presented. Such approaches should help human to increase the quality of supporting the decision-making processes of STS in real time.

BUILDINGS AS ACTIVE COMPONENTS FOR GRID STABILITY

2017 ◽  
Vol 12 (4) ◽  
pp. 21-34
Author(s):  
Friedrich Sick ◽  
Ralph Füger
Keyword(s):  
Capital Investment ◽  
Heat Storage ◽  
Reactive Power ◽  
District Heating ◽  
Energy Transition ◽  
Heat Pumps ◽  
Raw Material ◽  
Analysis Tool ◽  
Active Components ◽  
Massive Structure

A successful energy transition depends on storage options in order to ensure power supply stability under a fluctuating generation of a growing share of renewable energies (RE). Battery storage is expensive and raw material intensive and therefore not suitable as a sole solution. Surplus electricity may easily be converted to heat, which can be stored inexpensively for a short term. With such simple Power-to-Heat or P2H solutions, lack of electric power cannot be offset by conventional heat storage. However, if a building or an urban quarter is heated by means of cogeneration, so-called Combined Heat and Power (CHP), or heat pumps (HP), the operation can be adjusted in such a way, that the building itself, i.e. its massive structure, serves as heat storage. Electricity generation and consumption is adjusted to the requirements of the grid (reactive power control). For the supply of a Berlin quarter, built in the 1950s and equipped with a district heating network and a CHP plant, the feasibility of the concept could be proved using dynamic building simulation as the analysis tool. Sixteen percent of the total heating consumption may useably be stored and extracted from the building structure. In absolute numbers: 73 MWh/a heat can be buffered corresponding to 34 MWh/a balancing electricity. For each square meter of living area, 3.7 kWh electrical balancing energy can be buffered in the building's thermal storage capacity. Nothing else is required than a re-programming of heating and possibly cooling controls. No capital investment is needed. Well insulated and more massive structures could show a proportion of 27% of such shifted heat.

scholarly journals Hourly CO2 Emission Factors and Marginal Costs of Energy Carriers in Future Multi-Energy Systems

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2260 ◽  
Author(s):  
Felix Böing ◽  
Anika Regett
Keyword(s):  
Time Series ◽  
Linear Optimization ◽  
District Heating ◽  
Energy Systems ◽  
Energy Transition ◽  
Emission Factors ◽  
Energy Carrier ◽  
Energy Carriers ◽  
Marginal Costs ◽  
Market Values

Hourly emission factors and marginal costs of energy carriers are determined to enable a simplified assessment of decarbonization measures in energy systems. Since the sectors and energy carriers are increasingly coupled in the context of the energy transition, the complexity of balancing emissions increases. Methods of calculating emission factors and marginal energy carrier costs in a multi-energy carrier model were presented and applied. The model used and the input data from a trend scenario for Germany up to the year 2050 were described for this purpose. A linear optimization model representing electricity, district heating, hydrogen, and methane was used. All relevant constraints and modeling assumptions were documented. In this context, an emissions accounting method has been proposed, which allows for determining time-resolved emission factors for different energy carriers in multi-energy systems (MES) while considering the linkages between energy carriers. The results showed that the emissions accounting method had a strong influence on the level and the hourly profile of the emission factors. The comparison of marginal costs and emission factors provided insights into decarbonization potentials. This holds true in particular for the electrification of district heating since a strong correlation between low marginal costs and times with renewable excess was observed. The market values of renewables were determined as an illustrative application of the resulting time series of costs. The time series of marginal costs as well as the time series of emission factors are made freely available for further use.

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