The VAG Refrigeration Laboratory (VRL) is a unique and high-skilled laboratory in Europe in which different types of products are tested according to the main standards recognized at european level in the field of refrigeration, heating and other. This research centre, created by five test chambers, it has been projected with the collaborations by Università Politecneca delle Marche and permits to simulate extreme ambiental conditions (test temperature from -45°c to +55°c). It has knowledgies and high-skilled instruments for measuring performance, noise and vibration on equipment such as: monoblocks, evaporator unit, compressors, condensing units and heat pumps as well as many other tests on different types of components. Heat pumps has a very important role in the development of the laboratory because in order to fill the high demand for performance tests, the first design studies of a new climatic chamber, dedicated exclusively to the testing of heat pumps according to UNI EN 14511 and UNI EN 14825. In this structure will be realize tests for evalueting seasonal performance coefficients at standard rating conditions defined from the manufacture and at the part load conditions for simulating the real annual functioning. This elaborate describes the work done at the research laboratory of Rivacold S.r.l. was to deepen the most complicated issues dealt with by the Standards, UNI EN 14511 and UNI EN 14825, in order to subsequently carry out test procedures that could contain all the significant elements imposed by the regulations. Once the research process and its deepening, the activities were oriented in the design of the room identifying what are the necessary equipment for the realization of the tests. No less important was the supply system for the test chambers, where the units are tested, starting from the basic setup to produce cold and hot water from centralized systems, already present inside the research centre. The last part of the document shows a practical experience on how to test the different types of machines. This activity has been carried out not only from the training point, that is in order to be able to take manual skills and familiarity with all the elements that make up a test chamber but also for an interest aimed at the future realization of the room.
Il laboratorio VAG Refrigeration Laboratory (VRL) è una struttura unica e all'avanguardia in Europa, nel quale vengono testate diverse tipologie di prodotti secondo i principali standard riconosciuti a livello europeo nel settore della refrigerazione, riscaldamento ed altro. Il polo di ricerca, attualmente composto da 5 camere di prova, è stato progettato con la collaborazione dell’Università Politecnica delle Marche e permette di simulare condizioni ambientali estreme (temperatura di prova da -45°C a +55°C). Dispone in questo momento di know-how e strumenti all’avanguardia per effettuare rilevazioni sulle performance, rumore e vibrazioni su apparecchiature quali monoblocchi, evaporatori d’aria, compressori, unità condensatrici e pompe di calore, oltre a tanti altri test su diverse tipologie di componenti. Proprio le pompe di calore rivestono un ruolo fondamentale nello sviluppo del laboratorio poiché per colmare l’elevata richiesta di prove per il calcolo delle prestazioni sono stati intrapresi degli studi iniziali di progettazione di una nuova camera climatica, dedicata unicamente al test di pompe di calore secondo le UNI EN 14511 e UNI EN 14825. In questa nuova struttura verranno realizzate prove per la valutazione di coefficienti prestazionali in condizioni di progetto definite dal costruttore e in condizioni a carico parziale per simulare il reale funzionamento annuale della macchina. Questo elaborato riporta il lavoro svolto presso il laboratorio di ricerca di Rivacold S.r.l., in particolare l’approfondimento delle tematiche più complesse trattate dalle norme UNI EN 14511 e UNI EN 14825, per poter successivamente realizzare delle procedure di prova in grado di contenere tutti gli elementi significativi imposti dalle normative. Una volta terminato il processo di ricerca e relativo approfondimento, le attività si sono orientate nella progettazione della camera identificando le apparecchiature necessarie per la realizzazione dei test. Non meno importante è stato realizzare l’impianto di alimentazione delle camere di prova, dove le unità vengono dunque testate partendo da setup base di produzione di acqua fredda e calda da sistemi centralizzati, già presenti all’interno del polo di ricerca. L’ultima parte del documento riporta un’esperienza pratica riguardo alle modalità di testare le diverse tipologie di macchine. Questa attività è stata svolta sia sotto l’aspetto formativo, ovvero per poter prendere manualità e dimestichezza con tutti gli elementi che compongono una camera di prova, sia per un interesse finalizzato alla futura realizzazione della camera.
Progettazione di una camera climatica per il test di pompe di calore secondo le UNI EN 14511 e UNI EN 14825
URBINATI, GIANMARCO
2022/2023
Abstract
The VAG Refrigeration Laboratory (VRL) is a unique and high-skilled laboratory in Europe in which different types of products are tested according to the main standards recognized at european level in the field of refrigeration, heating and other. This research centre, created by five test chambers, it has been projected with the collaborations by Università Politecneca delle Marche and permits to simulate extreme ambiental conditions (test temperature from -45°c to +55°c). It has knowledgies and high-skilled instruments for measuring performance, noise and vibration on equipment such as: monoblocks, evaporator unit, compressors, condensing units and heat pumps as well as many other tests on different types of components. Heat pumps has a very important role in the development of the laboratory because in order to fill the high demand for performance tests, the first design studies of a new climatic chamber, dedicated exclusively to the testing of heat pumps according to UNI EN 14511 and UNI EN 14825. In this structure will be realize tests for evalueting seasonal performance coefficients at standard rating conditions defined from the manufacture and at the part load conditions for simulating the real annual functioning. This elaborate describes the work done at the research laboratory of Rivacold S.r.l. was to deepen the most complicated issues dealt with by the Standards, UNI EN 14511 and UNI EN 14825, in order to subsequently carry out test procedures that could contain all the significant elements imposed by the regulations. Once the research process and its deepening, the activities were oriented in the design of the room identifying what are the necessary equipment for the realization of the tests. No less important was the supply system for the test chambers, where the units are tested, starting from the basic setup to produce cold and hot water from centralized systems, already present inside the research centre. The last part of the document shows a practical experience on how to test the different types of machines. This activity has been carried out not only from the training point, that is in order to be able to take manual skills and familiarity with all the elements that make up a test chamber but also for an interest aimed at the future realization of the room.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12075/13946