2026-04-17T02:17:43Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1043772025-07-17T12:21:32Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Oliet Casasayas, Carles author Sadurní Caballol, Alexandre author Ablanque Mejía, Nicolás author Rigola Serrano, Joaquim author 2014 In the present work a numerical and experimental analysis of a R134a air to water heat pump is carried out. A numerical model has been developed and implemented to predict the heat pump thermal and fluid-dynamic behavior. The model is based on an object-oriented simulation tool called NEST where the whole system is modeled as a collection of different blocks linked between them. Each block represents a specific element of the system such as heat exchangers, compressors or expansion devices. The resolution procedure consists in solving all the blocks/elements iteratively until a converged solution is reached. In addition, a fully instrumented experimental facility has been built and commissioned in order to acquire experimental data and compare them against the numerical model predictions. In this work, the main aspects of the numerical model are presented together with a brief description of the experimental unit. The numerical results are compared against the experimental data and different numerical parametric studies are carried out. Peer Reviewed Postprint (published version) Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids Heat pumps Water heaters Heat pump Water heater Numerical model Bombes de calor Escalfadors d'aigua Numerical and experimental analysis of air to water heat pumps