Dear All,
I am looking for international standard(s) to evaluate the rated capacity of thermal driven cyclic heat pump such as adsorption cycle for cooling or heating purposes. Do you have suggestions? Thanks!
ISO 13612-2: 2014 (EN): Calculation method of system performance and system design for heat pump systems - Part 2: Energy calculation. I think I answered your question? Thank you.
Dear Dr. Ramy,
السلام عليكم ورحمة الله وبركاته
Thermally driven heat pumps (TDHP) work at three temperature levels. Driving heat Q2 is supplied at a high temperature level. Useful cold (cooling operation) or low temperature heat (heating operation) Q0 is supplied at a low temperature level. The sum of the heat supplied is released at a medium temperature level. Q1 is the useful heat in heating operation.
In cooling operation, it is usually released to the environment. However, medium and low temperature heat can also be used simultaneously for heating and cooling purposes. In principle, all closed cycle TDHP types can be operated in heating and cooling mode. However, when we talk about thermally driven heat pumps, we usually refer to absorption or adsorption heat pumps. Having the highest process efficiencies (coefficient of performance, COP) they are far more widespread than TDHP processes like steam jet, double organic Rankine (ORC), thermoacoustic, thermoelectric, Stirling, Vuilleumier, Pulse tube, or GiffordMcMahon processes. These cycles are mainly discussed for applications with additional specific requirements such as, for example, very low useful temperatures. There are also combined (compression-sorption hybrid cycles, see Ziegler 1991) or successive heat and mechanically driven processes like Rankine and vapor compression. The efficiency of TDHPs is defined by COPc or COPh only, even for the combined operation, in order not to confuse the thermodynamic meaning. The electrical energy input of TDHPs often is negligibly small. Otherwise, a second number, the electrical COP (COPel), can be used in order to distinguish it from the thermal COP (COPth).
I think the following paper link will be helpful for you,
Article Performance Evaluation of an Industrial Absorption System
Best regards
Mostafa
Thanks Bousnina Kamel for your suggestion. I have modified the question because I am looking for a standard for adsorption not absorption cycle. Do you have suggestion.
وعليكم السلام ورحمه الله وبركاته د مصطفي
Thanks for your detailed information Mostafa Ibrahim El-Shafie .
I am looking for standard(s) published by international society like ASHRAE or ASME, not evaluation parameters published in research papers.
Hi,
As far as I know, there is no specific standard for adsorption chiller.
Heat-driven chillers are tested in accordance with AHRI 551/591 (SI) 2020 including addendum 1 or with on of the following compatible standards AHRI 560-2021 (completed but not yet published), ANSI/ASHRAE standard 30-2019, ASHRAE 182-2020 and ANSI/ASHRAE/IESNA 90.1-2019 with addendum X and Y.
Hope this hepls.
Regards
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