News
EU parliament resolution on the heat pump applications
As a part of the climate package of the European Union, the new Directive on renewable energy received green light and according to it the renewing energy sources will have to constitute 20 percentage of the final energy use of the Union by 2020.
The directive seems to be of high importance also when judging the applicability of the heat pump technique since the directive clearly declares in its Annex VII/b: „the environmental energy utilized by heat pumps will be qualified as renewing energy with regard to the application of this directive.”
The directive does not distinguish the various modes of heat recovery but determines the amount of the renewing energy by the following formula:
ERES=Quseful*(1-1/SPF)
where:
Quseful =the whole useful heat energy resulting from the heat pump which meets the requirements defined in §5 of Section 5 as follows: only the heat pumps capable of SPF≥1,15*1/h can be considered.
SPF= the estimated average seasonal power factor for the heat pumps mentioned
h= ration of the total gross electric power production and the primary energy used for the electric power production, and it will be calculated as the EU average determined on the basis of the Eurostat data.
„The Committee will prepare directives by not later than 1st of January 2013 on how the member states should estimate values of Quseful and SPF for the various heat pumping technologies and applications, with the different climate conditions especially very cold climates taken into consideration.”
Conclusion: With regard to the above, we can clearly state that in the following years the tendency of SPF value will be the determinant factor in the judgement of heat pump technique and technology and it will probably determine to what extent each system will be supported.
This directive will probably change the present engineering and technological directions of heat pump manufacturers and distributors. More and more such heat pumps will have to be distributed the power ranges of which are optimized for the heat recovery levels, heating or possibly cooling and domestic hot water demands of each region and country. Real power tables based on effective individual device tests will be necessary making it possible for distributors and engineers planning their systems to design systems equipped with relatively accurate vertical closed probes.
- Although we can experience this approach occasionally, it will not be sufficient for the distributors to try to sell heat pumps completely unknown to them and wait for a designer to learn their details and plan the installation of the imported devices by his own diligence.
Heat pumps should already now be designed and constructed only with system approach. Beyond this, only such devices should be sold which was tested by the distributor who can thus convince of the real heat engineering and regulation possibilities and help in the designing work with technical guidelines adjusted to the given conditions. With regard to the SPF value’s becoming a major determinant, we expect that such companies will survive in the long run which distribute their systems according to the system approach that is in a complex way from designing to construction, with the heat pump and the exothermic and endothermic system also included and adjust them to the given conditions. Our opinion is that only in this way one can achieve real success in the field of SPF. Good technology is essential but the requirements of SPF value cannot be met without a skilled distributor and designer having complex knowledge.