CO 2 mitigation accounting for Thermal Energy Storage (TES) case studies

Abstract

28According to the IPCC, societies can respond to climate changes by adapting to its 29 impacts and by mitigation, that is, by reducing GHG emissions. No single technology 30 can provide all of the mitigation potential in any sector, but many technologies have 31 been acknowledged in being able to contribute to such potential. Among the 32 technologies that can contribute in such potential, thermal energy storage (TES) is not 33 included explicitly, but implicitly as part of technologies such as energy supply, 34 buildings, and industry. To enable a more detailed assessment of the CO 2 mitigation 35 potential of TES across many sectors, the group Annex 25 "Surplus heat management 36 using advanced TES for CO 2 mitigation" of the Energy Conservation through Energy 37 Storage Implementing Agreement (ECES IA) of the International Energy Agency (AEI) 38 present in this article the CO 2 mitigation potential of different case studies with 39 integrated TES. This potential is shown using operational and embodied CO 2 40 parameters. Results are difficult to compare since TES is always designed in relation to 41 its application, and each technology impacts the energy system as a whole to different 42 extents. The applications analysed for operational CO 2 are refrigeration, solar power 43 plants, mobile heat storage in industrial waste heat recovery, passive systems in 44 buildings, ATES for a supermarket, greenhouse applications, and dishwasher with 45 zeolite in Germany. The paper shows that the reason for mitigation is different in each 46 application, from energy savings to larger solar share or lowering energy consumption 47 from appliances. The mitigation potential dues to integrated TES is quantified in 48 kg/MWh energy produced or heat delivered. Embodied CO 2 in two TES case studies is 49 presented, buildings and solar power plants. 50 51 52 53 Embodied CO 2 , 55 56 3 1 Introduction 57 58According to the Intergovernmental Panel on Climate Change (IPCC), societies can 59 respond to climate changes by adapting to its impacts and by mitigation, that is, by 60 reducing Greenhouse Gas (GHG) emissions [1]. No single technology can provide all of 61 the mitigation potential in any sector, but many technologies have been acknowledged 62 in being able to contribute to such potential. Among these technologies thermal energy 63 storage (TES) is not included explicitly, but implicitly as part of technologies such as 64 energy supply (improved supply and distributions efficiency, renewable heat and power, 65 combined heat and power, concentrated solar power, etc.), buildings (more efficient 66 electrical appliances including heating and cooling devices, improved insulation, 67 passive and active solar design for heating and cooling, etc.), and industry (heat and 68 power recovery and advanced energy efficiency).69 70 The benefits of TES may not be evident since their effects are not immediate in some 71 cases or they are only appreciable under specific circumstances. A first attempt on 72 accounting for TES potential...

Experimental investigations on prototype heat storage units utilizing stable supercooling of sodium acetate trihydrate mixtures

“…Thermal energy storage integrated in energy systems can help to optimize the use of energy resources by peakshaving and making it possible to implement more renewable energy sources in our energy infrastructure [1]. This can lead to a reduction in greenhouse gas emissions from our thermal energy use and a reduction in environmental pollutants.…”

Optimized demand side management (DSM) of peak electricity demand by coupling low temperature thermal energy storage (TES) and solar PV

“…In another attempt, Li and Zheng [35] studied various methods of TES system integration for building and industry applications. In particular, the application of cold storage systems has been broadly developed in the power generation sector, the building sector, and the industrial sector because of their high potential to temporally shift the increasing cooling demand, reducing the stress on the energy system [36], and on the other hand, reduce the greenhouse gas emissions [37,38].…”

Design and functionality of a segmented heat-storage prototype utilizing stable supercooling of sodium acetate trihydrate in a solar heating system

“…With the increasing utilization of energy from renewable sources, solar heating has become one of the most promising technologies for reducing the percentage of fossil fuels in future energy systems. Thermal energy storage is a key system component for utilizing renewable energy sources to a greater extent [1]. Solar combisystems are designed to achieve high solar fractions of heat supply for domestic buildings.…”