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Research ESRIG - Energy and Sustainability Research Institute Groningen Events

ESRIG-EES colloquium: Zhihao Lu and Enrique Campa Flores, MSc EES students

When:Tu 10-12-2019 16:00 - 17:00
Where:5159.0114, Nijenborgh 6 (Energy Academy)

Title: Improve the link between hydrogen model and electricity models in the IMAGE/TIMER model.

By: Zhihao Lu, MSc EES student.

The role of Power-to-Gas (P2G) route in the future energy system is important for dealing with the system integration challenges raise from the growing of renewable energy. This presentation introduces the proposed improvement to the link between the hydrogen module and electricity module in the IMGAGE/TIMER model of Netherlands Environmental Assessment Agency (PBL). The TIMER (IMAGE Energy Regional) model is a long-term integrated global energy system simulation model which consists of three modules: Energy demand, Energy supply and Conversion module. The electricity module and hydrogen module are the two main conversion modules.

First of all, the proposed update of the efficiency, capital cost and learning rate of existing hydrogen generation options are determined. Moreover, one additional hydrogen generation option called Autothermal reforming with CCS is proposed. Information of electrolysis systems in TIMER are also expanded into three systems which are Alkaline electrolysis, Polymer electrolyte membrane (PEM) electrolysis and Solid oxide (SO) electrolysis.

The efficiency, capital cost and learning rate of PEM and SO fuel cells, compressors up to 18 and 70 Mpa and different hydrogen storage options are collected and integrated into TIMER. Moreover, mixing hydrogen into natural gas as fuel for existing gas turbines is also proposed as one option to re-use the existing natural gas turbines and potentially reduce the emission. Information of existing hydrogen storage with either natural gas or carbon dioxide into depleted gas reservoir and aquifer are included. In the last section, a method that integrate the hydrogen to electricity route into the endogenous Residual Load Duration Curve (RLDCs) has been proposed. In this method, the role of hydrogen in reducing the curtailment and potential applications of hydrogen are determined. A proxy for determining the types of storage facilities, scales and storage cost are proposed.

Title: MIDDEN: Asphalt Sector

By: Enrique Campa Flores, MSc EES student

Manufacturing Industry Decarbonisation Data Exchange Network is a project started by PBL and ECN, part of TNO, that intends to build knowledge on decarbonisation options for the industrial sector in the Netherlands. Accordingly, this project aims to support policymakers, analysts and most of the stakeholders in the energy sector, in order to carry out a decarbonisation of the industrial Dutch sector. Out of the different industrial sectors included in this project (Industries part of the EU-ETS in the Netherlands), it is the production of asphalt in road construction that was selected for this research.  

The asphalt sector in the Netherlands is split into 36 stationary plants that overall emitted 122 kilotonnes of CO2 in 2017 (EAPA). Altogether, the asphalt sector has a significant share, and therefore, the asphalt sector as a whole will be taken into consideration for the report.  

The most prevalent method to produce asphalt in the Netherlands includes a batch mixing plant, that produces Warm and Hot asphalt. These asphalts, are characterized for needing to be heated up to a temperature of 180 degrees celsius, requiring between 252 - 360 MJ/ tonne of energy to achieve that temperature (depending on the humidity content and mixture requirements). This makes the heating of the aggregates, the process with the largest share in energy expenditures, and therefore, the largest share of emissions in the asphalt sector. Thus, the main focus of this research analyzes the decarbonization options required for the heating/drying of the aggregates in asphalt production.