Available eLessons

  • Introduction to district energy

    Target group:
    Everybody interested in district energy or district heating topics.

    Description:
    This eLesson will give you a basic introduction to the concept of district energy:

    • Distribution network 
    • Supply and return water
    • Cogeneration
    • Multi-fuel energy system
    • Advantages of district energy system

     

     

    After taking this eLesson you will be able to:

    • Understand and describe the basic advantages of district energy system
    • Explain the basics of how district energy system works

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    Introduction to district heating: from primary to secondary system

    Target group:
    Everybody who wants to learn about a process of heat transfer from district heating utility to end consumers.

    Description:
    In this eLesson we will focus on the process of heat transfer from the district heating utility to end consumers.


    Key words:

    • Primary system
    • Secondary system
    • Substation
    • Heat exchanger
    • Control

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    Open and closed loop system in district heating

    Target group:
    Everybody interested in district energy or district heating topics.

    Description:
    This eLesson will give you a basic introduction to the concept of open and closed control loop system in relation to district heating.



    After completing this eLesson you will be able to:

    • Understand what a closed-loop system is
    • Describe the relationship between closed-loop systems and District heating systems
    • Relate closed-loop system elements to District heating system elements

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    Why use Flow Controllers in district heating networks

    Target group:
    This eLesson is very general (basic) so it is appropriate for everybody interested in flow controllers: what they are, why we need them, how they work.

    Description:
    District heating systems are used increasingly often when discussing heating buildings in general. Existing systems are also expanding by a number of new substations as well.

    The system itself becomes bigger and bigger and consequently the demands to control the complete system become more demanding. One of the demands is also to gain a more precise control of the flow in the system. Here Flow Controllers (together with Differential Pressure Controllers) play an important role.

    In this eLesson we will focus on the use of Flow Controllers and their role in such systems and the benefits of having them installed.



    After completing this eLesson you will be able to:

    • Understand and describe the basic functions of flow controllers
    • Understand and describe the basic advantages of using flow controllers

     

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    Why use Differential Pressure Controllers in district heating networks

    Target group:
    This eLesson is very general (basic) so it is appropriate for everybody interested in differential pressure controllers: what they are, why we need them, how they work.

    Description:
    District heating systems are used more and more often for heating buildings in general. As well as this, existing systems are also expanding according to the number of new substations.

    The system itself becomes bigger and bigger and consequently the demands to control the complete system become more challenging. In order to improve the control valve performance and save energy it’s recommended to install differential pressure controllers in the network / house connection. 



    After completing this eLesson you will be able to:

    • Understand and describe the basic function of a differential pressure controller
    • Understand and describe the basic advantages of using a differential pressure controller and understand this from:- the consumer‘s point of view- the DHU‘s point of view
    • Know that Differential Pressure Controllers exist in different versions
    • Get information about the structure of controller type designations

     

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    kvs value - definition and use

    Target group:
    kvs is a value which appears in different calculations and product specifications.

    Description:
    In this eLesson we will give a simple explanation of its definition, usefulness and use. You are welcome to take a simple test at the end.


    After completing this eLesson you will know:

    • How kvs is defined 
    • How you can use it 
    • How to calculate it 
    • How to find the required kvs 
    • How to choose an appropriate valve

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    Cavitation - definition and use

    Target group:
    Cavitation is a phenomenon in systems with a flow of liquid. It is caused by local conditions that enable evaporation and condensation. The presence of cavitation enables material destruction. To avoid this destruction, a cavitation check appears in different calculations and product specifications.

    Description:
    In this eLesson, we will provide a simple explanation of its definition, usefulness and use.


    After completing this eLesson you will know:

    • What is a cavitation phenomenon
    • How a cavitation factor is defined 
    • How to use a cavitation factor
    • How to check a selected valve

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    Motorized control valves

    Target group:
    This eLesson is very general (basic) so it is appropriate for everybody interested in motorized control valves: what they are, why we need them, how they work.

    Description:
    Motorized control valves (MCV) are valves used to control temperature by fully or partially opening or closing in response to signals received from controllers.


    After completing this eLesson you will be able to:

    • Explain the main function of the product and its role in district heating systems 
    • Understand main product types 
    • Know how the product works 
    • Place it in the main applications

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    Danfoss RVA rotary valves for heating applications

    Target group:
    People interested in heating applications.

    Description:
    This eLesson will give you a basic introduction to the completely new range of in-house developed rotary valves for use in heating applications.

    The RVA rotary valves provide a number of significant features that all contribute to increased value for customers, e.g.:

    • Cost reduction
    • Less effort
    • Energy efficiency
    • Complexity reduction

     


    After taking this eLesson you will be able to:

    • Explain the main advantages and benefits of new Danfoss rotary valves
    • Present the product range of Danfoss rotary valves
    • Show the main product features, such as position indicator, easy installation etc.

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    iMCV™: intelligent motorized control valves

    Target group:
    This eLesson allows you to learn about the new »intelligent« feature of motorized control valves with your own pace and according to your interest:

    • Users with basic knowledge about motorized control valves can explore this eLesson briefly – by browsing the main pages – and learn about iMCV™ fundamentals.
    • And for experts in the field of controlling there is a special chapter with FAQ - answering more complex questions.


    The eLesson is also especially appropriate for:

    • Installers who are interested in product solutions of intelligent motorized control vales.
    • System integrators and designers interested in energy savings that can be achieved with new patented Danfoss technology, motorized control valves' built-in intelligence which eliminates periodical oscillation in HVAC applications

    Description:
    Danfoss iMCV™ is a new generation of motorized control valves that hold a unique built-in intelligence, a more precise anti-oscillation feature for improved thermal comfort and energy saving.

    In this eLesson we will explain the function of the anti-oscillation feature: We will start by explaining what oscillation in HVAC systems is and why it is not good for a system and end users.

    Then we will present you with a solution on how to prevent oscillation in HVAC systems: We will explain using real life examples and then produce some calculations to show you the “energy saving”.

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    Introduction to Danfoss plate heat exchangers

    Target group:
    This eLesson is very general (basic) so it is appropriate for everybody interested in heat exchangers: what they are, why we need them, how they work.

    Description:
    In this eLesson, we will focus on the following topics:

    • Types of heat exchanger and why a plate heat exchanger
    • How plate heat exchangers work
    • The difference between the two types of Danfoss heat exchangers: brazed and gasketed


    After taking this eLesson you will be able to:

    • Understand how a plate heat exchanger works and where in the district heating it is used
    • Explain the difference between the two types of Danfoss HEX: brazed, gasketed and also the Micro Plate™ technology and its benefits
    • See the advantages of a Micro Plate™ design over the traditional fishbone pattern

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    District heating application handbook: one-family house solutions

    Target group:
    Installers, wholesalers, partners, students, designers, architects, consulting engineers, commercial heating specifiers

    Description:
    The eLesson was developed to share experience, application expertise and getting the Danfoss recommendations on optimum performing district heating applications and key applied control components.

    It focuses on one-family house solutions. District heating applications must meet user‘s expectations for comfort and ensure secure and safe heat supply. They must also provide energy efficient performance. This handbook provides advice on all these parameters to help design the optimum solution.

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    District heating application handbook: multi-family house solutions

    Target group:
    Installers, wholesalers, partners, students, designers, architects, consulting engineers, commercial heating specifiers.

    Description:
    The eLesson was developed to share experience, application expertise and getting the Danfoss recommendations on optimum performing district heating applications and key applied control components.

    It focuses on multi-family house solutions. District heating applications must meet user‘s expectations for comfort and ensure secure and safe heat supply. They must also provide energy efficient performance and billing according to individual consumption. This eLesson provides advice on all these parameters to help design the optimum solution.

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    ECL Portal: How to configure the ECL Comfort 310 controller to communicate with the Danfoss ECL Portal

    Target group:
    Installers, end-users, partners, consulting engineers, system integrators.

    Description:
    This e-Lesson provides a step by step demonstration on how to configure the ECL Comfort 310 controller to communicate with the Danfoss ECL Portal.

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