חברת החשמל
 

R&D Projects

Research and Development– Academic Collaboration

Methodology for Coal Combustion Behavior Prediction in Coal Fired Utility Boilers

It happens occasionally that universities and research centers call on our expert engineering staff to take part in R&D projects.
For example, we developed a new method for predicting burning processes to reduce emissions of coal fired units.
In conjunction with Ben Gurion University at Beer Sheba, we are integrating two main modules in coal-fired plants:
a virtual computerized boiler and a real simplified boiler.
We define parameters in the virtual computerized boiler based on coal type and are working to predict the boiler behaviors in a simple boiler for both unknown and new coal types. Methods were calibrated on the Israel Electric Corps coal fired boilers and accurate results were obtained.
This project can offer substantial cost savings to power plants and reduce emissions.



Improvement Operational Stability in Low NOx GT combustor by a Pilot Flame

R&D and Engineering Divisions in conjunction with Technion, Israel Institute of Technology, we performed research for improving of combustion stability of GT DLN combustors installed in IEC sites.​

The performed work shows that using pre-chamber that generates free radicals may be considerably improved combustion stability of lean premixed mixture in combustion chamber

Engineering Division Unique R&D projects (Israel)

Over the past years there has been a dramatic increase in the regulatory requirements for low emissions from both new and existing utility boilers. Traditional methods of reducing NOx emissions are very expensive. Hence, before the implementation of the expensive measures, it is necessary to evaluate all low cost alternatives
​One of the attractive alternative fuels for combustion in the utility boilers and stationary gas turbines may be methanol. Existing experience has shown that with minor system modifications, methanol is easily fired and is fully feasible as an alternative fuel. 
Results presented herein obtained from co-firing of methanol with heavy fuel oil in specific utility boilers (Haifa Power plant - 140 MW units, commissioned at the end of the 1960's) of the Israel Electric Corporation (IEC).  
The results presented here clearly show that with minor low cost fuel system retrofit, heavy fuel oil and methanol co-firing leads to significant NOx, SO2 and particulates emission reduction. NOx emissions were reduced more than 20% and meet the commonly accepted NOx emissions 270-330 mg/dNm3 at 3%O2. SO2 emissions were reduced from 670 mg/dNm3 at 3%O2 with HFO to 430 mg/dNm3 at 3%O2 with methanol co-firing. Particulate emissions vary from 25 to 37 mg/dNm3 at 3% O2 with methanol co-firing, while with HFO this parameter was 40-90 mg/dNm3 at 3% O2. 

 
Th
e project is assisted by the IEC from its initial stages. A 1000 sq meters pilot farm is operated in the Rutenberg Power Station and a 17,000 square m farm is planned, with our participation as well. 






Engineering Division Participation in the EU R&D Programs 

NanoGLOWA (Nano-membranes Against Global Warming) Integrated Project in the framework of the EU Sixths Program (25 participants from 14 countries). 

The project goal is to develop novel and efficient membranes for separating carbon dioxide molecules from the power stations flue gases for its sequestration. Novel materials for membranes as well as membrane modules developed and manufactured in few European countries, participating in the project, are being tested in the IEC test rig at the Rutenberg Power Station. IEC former experience in application of the carbon molecular sieve membranes for greenhouses CO2 fertilization with flue gases under another R&D project assisted us to be useful participant during all stages of the project.   


CapWa – Capture of Evaporated Water with Novel Membranes
Collaborative Project in the framework of the EU Seventh Program (14 participants from 8 countries)

The goal of this project is to develop the membranes for removal of water vapors from flue gases of the power stations. It is applicable for paper mills, too. It is assumed that the recovered water with very low content of the dissolved solids can be efficiently used in the power and other industries. At the same time, such dehydration of the flue gases makes further removal of CO2 more feasible. 
 
PVPS- Photovoltaic Power Systems program of the IEA- Task 14- high penetration of PV in electricity grids. (19 participants from 12 countries)

The goal of this work group is to reduce technical barriers, in order to achieve, high penetration level of distributed renewable systems in the electric power system. Since PV continue to expand its share in the global electricity generation in faster paste then other renewable, there is a common consensus that additional efforts is necessary in order to integrate the dispersed generators in an optimum manner. The work group includes utilities, industry, research institutes and other stakeholders that will work to define the appropriate technologies and methods enabling the widespread deployment of distributed PV into the electricity grid.


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