Quantification of the European industrial heat demand by branch and temperature level

Naegler, Tobias; Simon, Sonja; Klein, Martin; Gils, Hans Christian

doi:10.1002/er.3436

Cited by 84 publications

(47 citation statements)

References 11 publications

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“…The study by Miró et al [13] quantified the excess heat for different countries and regions. On the European level, Naegler et al [14] quantified the industrial heat demand by branch and temperature level. This work provides useful information for further analyses of EH in Europe.…”

Section: Introductionmentioning

confidence: 99%

Industrial excess heat for district heating in Denmark

et al. 2017

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Excess heat is available from various sources and its utilisation could reduce the primary energy use. The accessibility of this heat is however dependent amongst others on the source and sink temperature, amount and potential users in its vicinity. In this work a new method is developed which analyses excess heat sources from the industrial sector and how they could be used for district heating. This method first allocates excess heat to single production units by introducing and validating a new approach. Spatial analysis of the heat sources and consumers are then performed to evaluate the potential for using them for district heating. In this way the theoretical potential of using the excess heat for covering the heating demand of buildings is determined. Through the use of industry specific temperature profiles the heat usable directly or via heat pumps is further found. A sensitivity analysis investigates the impact of future energy efficiency measures in the industry, buildings and the district heating grid on the national potential. The results show that for the case study of Denmark, 1.36 TWh of district heat could be provided annually with industrial excess heat from thermal processes which equals 5.1 % of the current demand. More than half of this heat was found to be usable directly, without the need for a heat pump.

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Section: Introductionmentioning

confidence: 99%

Industrial excess heat for district heating in Denmark

et al. 2017

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“…For example, Rehfeldt et al 47 argue in their introduction that there is a need for more detailed (less aggregated) data for industrial energy end-use. Brueckner et al 9 conclude in their review of methods for estimation of industrial waste heat potentials that "lack of data is a very huge obstacle to the quantification and usage of the industrial waste heat," and Naegler et al 48 conclude that "A serious obstacle in this study is the difficulty to obtain reliable, up-todate data for energy usage and PH [process heating] temperature levels on a national and industry branch level. "…”

Section: Discussionmentioning

confidence: 99%

Characterization and visualization of industrial excess heat for different levels of on‐site process heat recovery

2019

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Summary Increased utilization of industrial excess heat (or waste heat) can reduce primary energy use and thereby contribute to reaching energy and climate targets. To estimate the potential availability of industrial excess heat, it is necessary to capture the significant heterogeneity of the industrial sector. This requires the development of methodologies based on case study assessments of individual plants, adopting a systematic approach and consistent assumptions. Since the recovery of excess heat for power generation or off‐site delivery competes with internal recovery for on‐site fuel savings, a well‐founded approach should enable a comparison of the excess heat availability at different levels of internal process heat recovery. To determine the best solution for excess heat utilization for a given process, there is a need for easy screening of various options, while considering that some techniques require heat at a constant temperature while others can exploit a nonisothermal heat supply. This paper presents a new tool, the excess heat temperature (XHT) signature, for exploring the potential heat availability and trade‐offs for excess heat utilization by weighting the heat according to predefined temperature levels and ranges. A set of reference conditions are defined, and an energy targeting approach is proposed that can be used for characterizing the Theoretical XHT signature, which represents the unavoidable excess heat that can be recovered after maximized internal process heat recovery and ideal integration of a power generation steam cycle. The Theoretical XHT signature is contrasted with the Process Cooling XHT signature, which represents the excess heat that can be recovered given the current design and operation of the process and its utility system. The XHT signature curves provide a consistent representation of the excess heat, enabling comparison between sites and aggregation of results from different case studies.

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“…As presented in Figure , total thermal energy demand in the Swiss chemical and pharmaceutical industry in 2016 was approximately 19 000 TJ, part of which can be reduced by implementing the EE measures listed in Table . In Swiss chemical and pharmaceutical industry, process heat accounts for nearly 75% of the total thermal energy demand of which nearly 30% is estimated to be at low to medium temperature, ie, <100°C to 500°C . Part of this heat demand could be supplied by industrial CHP.…”

Section: Data Acquisition and Analysis Methodsmentioning

confidence: 99%

“…In Swiss chemical and pharmaceutical industry, process heat accounts for nearly 75% of the total thermal energy demand 40 of which nearly 30% is estimated to be at low to medium temperature, ie, <100°C to 500°C. 41 Part of this heat demand could be supplied by industrial CHP. Since some CHP technologies cannot provide process heat at temperatures above 400°C, 42 an estimate of 25% of the total process heat demand at temperatures below 400°C in Swiss chemical and pharmaceutical industry is used in this study.…”

Section: Chp Potential and Costsmentioning

confidence: 99%

Cost‐effectiveness analysis of energy efficiency measures in the Swiss chemical and pharmaceutical industry

Zuberi

Patel

2018

Int J Energy Res

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Summary Energy efficiency improvement is an effective way of reducing energy demand and CO2 emissions. Although the overall final energy savings potential in chemical industry has been estimated in a few countries, energy efficiency potentials by concrete measures applicable in the sector have been scarcely explored and their associated costs are hardly analyzed. In Switzerland, the production of chemicals and pharmaceuticals exceeds all other industrial sectors in terms of energy use and CO2 emissions, and it accounted for 22% of the total industry's overall final energy demand and 25% of the CO2 emissions related to non‐renewable energy sources in 2016. In this study, the economic potentials for energy efficiency improvement and CO2 emissions reduction in the Swiss chemical and pharmaceutical industry are investigated in the form of energy efficiency cost curves. The economic potential for final energy savings and CO2 abatement based on energy‐relevant investments is estimated at 15% and 22% of the sector's final energy use and fossil fuel‐related CO2 emissions in 2016, respectively. Measures related to process heat integration are expected to play a key role for final energy savings. The economic electricity savings potential by improving motor systems is estimated at 15% of the electricity demand by these systems in 2016. The size of economic potential of energy efficiency improvement across the sector decreases from 15% to 11% for 0.5 times lower final energy prices while the size increases insignificantly for 1.5 times higher final energy prices. The additional power generation potential based on Combined Heat and Power plants is estimated at 14 MW for 2016. This study is a contribution to the so far limited international literature on economic energy efficiency measures applicable in this heterogeneous sector and can support policy development. The results for specific costs of energy efficiency measures can also be adapted to other parts of the world by making suitable adjustments which in return may provide useful insights for decision makers to invest in economically viable clean energy solutions.

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Quantification of the European industrial heat demand by branch and temperature level

Cited by 84 publications

References 11 publications

Industrial excess heat for district heating in Denmark

Industrial excess heat for district heating in Denmark

Characterization and visualization of industrial excess heat for different levels of on‐site process heat recovery

Cost‐effectiveness analysis of energy efficiency measures in the Swiss chemical and pharmaceutical industry

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