The concept of low-cost didactic rig in the field of heat pumps

Grzegorz Pełka,Wojciech Luboń,Tomasz Pudlik,Daniel Malik,M Jewiarz

doi:10.1051/e3sconf/202015405007

Grzegorz Pełka, Wojciech Luboń + Show 3 more

Open Access

https://doi.org/10.1051/e3sconf/202015405007

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Abstract

The Centre of Sustainable Development and Energy Saving in Miękinia conducts broad didactic activities for various groups of students. For its own purposes, and also as a concept to use for other didactic centers, a low-cost didactic stand in the scope of heat pumps was designed and implemented. The constructed device presents the operating principles and schematically describes the basic elements of the ground source heat pump system. The device was constructed using a used piston and hermetic compressor from an old fridge. As an evaporator and condenser, a heat exchanger made from copper pipe curved meandering was used. A carefully selected capillary tube was used as an expansion element. The distribution of the components and the visualization of the didactic rig were devised. The whole concept assumed the usage of propane (R290) as an ecological refrigerant. The project also includes cost statements for creating an alternative to a commercial, low-cost stand for teaching purposes at various levels of education and suggests ways of using the set.

Highlights

The history of heat pumps is much older than we think
Were the foundations laid for heating devices which would be cheaper in terms of operation [1]
The refrigerant flows to the evaporator, where the refrigerant absorbs heat from the low temperature heat source and evaporates

Summary

Introduction

The history of heat pumps is much older than we think. For the first time in 1852, William Thomson Kelvin proved that we can use refrigerators for heating, consuming less energy because we take it from the environment. Were the foundations laid for heating devices which would be cheaper in terms of operation [1]. Heat pumps appeared several years ago as available solutions for heating and warming up domestic hot water. They are devices that are characterized by many years of unattended exploitation, an ecological nature and cheap operation costs. What's more, the use of heat pumps allows for savings at the building construction stage. There is no need for a chimney in a building, places for storing fuel and even boiler rooms. This partly compensates for the higher price of the device

Purpose of the works

A heat pump as a heating device

The concept

Design and selection of system components

Summary