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  • 19/11/2023 at 16:56 #4355
    Author Michael
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          The Forums in the www.alera.academy are an important part of our platform. We want to encourage the exchange of information and ideas of how to evaluate and optimise thermal energy systems. Please note that we will moderate the forums in the www.alera.academy to focus on thermal energy engineering only. Please register to write new topics, comment on existing ones or ask question. Please tell us what you would like to see in the Forums.

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    alera Energy SLU in Andorra is our main consultancy. Until 2009 we have built many turn-key energy plant, after which we granted licenses or our combustion systems and now we are acting as consultant worldwide.
    We are also the initiators of the free www.alera.academy. If you want to know more about it
     
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    Topics in the section “Boilers”

    Water & Steam Properties

    Green are items, still to be created

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    Topics in the section “Flue Gas Emissions”

    Pollution Considerations

    Particulate Emission

    Sulfur, Chlorine and Fluor

    Hydrocarbon and CO

    Nitrogen Oxides

    Dioxines and others

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    Topics in the section “Efficiency”

    Importance of Efficiency

    Internal Combustion Engine

    Wind and Solar Efficiency

    Steam and Cogeneration

    Gas Turbine and combined Cycle

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    Topics in the section “Combustion”

    Combustion Calculation

    Coal Firing

    Biomass / Agrowaste Firing

    Solid waste Incineration

    Liquid Waste and Sludge Incineration

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    Topics in the Section “Organic Fuels”

    Formation of Coal, Oil and Gas

    Properties of organic fuel

    The heating value of fuel

    Ash Behaviour of Fuel

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    Topics in the section “Basic Knowledge”

    Units and conversions

    Specific Heat of Gas

    Specific Heat of Solids and Liquids

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    ARUNA Pty Ltd is our Singapore branch which looks after our patents and intellectual property rights. If you want to know more about us

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    We support the www.alera.academy because thermal energy will be needed for many decades to come.

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    WE KNOW HOW !

    deltaT.energy is assisting many companies building boilers, thermal oil heaters or incinerators worldwide. We optimise your design and plant operation. Our contacts are:

    deltaT.energy website

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    Skype : lucaviscuso

    Tel.: +49 (0) 80 53 – 53 08 450

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    alera energy has over many years supplied turn-key energy plant for the wood panel industry. If you want to know more about it.

    Please click here to go to our website

    Today we act as consultant to the wood panel industry with special knowledge in  the field of energy and environment.

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    Topics in the section “Knowledge Center”

    About the Knowledge Center

    Using the aleraSoft Excel AddIn

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    WHY

    Why do we need the www.alera.academy?

    The global energy transition towards an electricity dominated energy world created by renewable energy, mainly wind and solar, is well underway. In some countries, wind and solar are already contributing a notable portion of the electricity production. By this transition, the interest in thermal energy is declining and material and intellectual resources are increasingly diverted from thermal energy technology to electricity from renewables. Some university institutes for thermal engineering are faced with strongly reduced numbers of students or they even close thermal energy departments

    However, if one looks at the total global primary energy usage, the picture looks less promising.

    Evaluating the last 17 years, the period after the Kyoto protocol signed by 192 nations went into force in 2005. we see that the actual contribution of wind and solar energy to cover the global primary energy consumption is neglectable.

    In this period the global primary consumption of energy increased by 26,3 % and the largest amount of this increase  with 70 % was provided by coal, oil and gas. Wind and solar contributed only 20 % of the increase and hydropower 8 %. 

    In 2021 wind and solar energy only provided 4,3 % of total global primary energy.

    The contribution of the different energy sources to the global primary energy is shown below.

    (source https://ourworldindata.org/energy-mix). 

    The fact that wind and solar energy have a high convertion factor to  electricity is already accounted for in the above numbers chart. Nuclear is shown with its thermal input, not electricity produced and hydro is adjusted for efficiency as present in a thermal power plant.

    The idea that additional energy consumption growth or the globally required energy  will in the short to medium future, say 50 to 100 years, be in its majority provided by wind and solar and the rest by other renewables such as hydro or nuclear with a suitable grid and energy storage system is nothing but an illusion.

    This is why we are conviced that we must upkeep and further develop thermal energy knowledge, and so utilise the enormous potential energy saving  through efficiency increase and better thermal energy processes.