Ir al contenido (pulsa Retorno)

Universitat Politècnica de Catalunya

    • Català
    • Castellano
    • English
    • LoginRegisterLog in (no UPC users)
  • mailContact Us
  • world English 
    • Català
    • Castellano
    • English
  • userLogin   
      LoginRegisterLog in (no UPC users)

UPCommons. Global access to UPC knowledge

Banner header
61.586 UPC E-Prints
You are here:
View Item 
  •   DSpace Home
  • E-prints
  • Centres de recerca
  • CTTC - Centre Tecnològic de la Transferència de Calor
  • Ponències/Comunicacions de congressos
  • View Item
  •   DSpace Home
  • E-prints
  • Centres de recerca
  • CTTC - Centre Tecnològic de la Transferència de Calor
  • Ponències/Comunicacions de congressos
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Dynamic simulations of an absorption system with different working pairs at chiller and heat pump application

Thumbnail
View/Open
ZHE21-IP-CTTC.pdf (3,865Mb) (Restricted access)   Request copy 

Què és aquest botó?

Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:

  • Disposem del correu electrònic de l'autor
  • El document té una mida inferior a 20 Mb
  • Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
  View Usage Statistics
  LA Referencia / Recolecta stats
Cita com:
hdl:2117/355704

Show full item record
Zheng, JianMés informacióMés informació
Castro González, JesúsMés informacióMés informacióMés informació
Oliet Casasayas, CarlesMés informacióMés informacióMés informació
Document typeConference report
Defense date2021
PublisherPurdue University
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
This work describes the dynamic simulation of a direct air-cooled single effect solar-driven absorption system and demonstrates the numerical results of the absorption system with different working pairs. The working pairs used in the chiller mode are LiBr-H2O and Carrol-H2O (Carrol contains LiBr and EG -Ethylene glycol- with a mass ratio at 4.5:1), while in the heat pump mode, EG is introduced in the evaporator to avoid freezing problem which limits the operation condition. The numerical modelling was implemented on a modular object-oriented simulation platform (NEST platform tool), which allows the linking between different components, considered as objects, which can be either an empirical-based model or a more detailed CFD calculation if necessary. Specifically, flat plate collectors coupled with a storage tank is introduced assisting the heat source for the absorption system, and all the components are implemented based on mass, momentum, and energy balances. The goal of this work is to compare the general performance like COP and working capacity between LiBr-H2O and Carrol-H2O in chiller mode and the performance of working pair Carrol-H2O at heat pump mode in dynamic operation. Finally, various simulations at each case are performed with meteorologic data of Barcelona and Madrid in summer and winter, and the heat source consists of 30 m2 solar collectors and an auxiliary heater. The solar collectors used in the system are high efficiency flat solar collectors. The fraction of solar energy in heat source varies depends on the total radiation in the area, which could reach 0.65 on a sunny day or attributes less than 0.1 on a cloudy day.
CitationZheng, J.; Castro, J.; Oliet, C. Dynamic simulations of an absorption system with different working pairs at chiller and heat pump application. A: International Refrigeration and Air Conditioning Conference at Purdue. "18th International Refrigeration and Air Conditioning Conference at Purdue, May 24-28, 2021: proceedings". Purdue Mall, West Lafayette, Indiana: Purdue University, 2021, p. 1-10. 
URIhttp://hdl.handle.net/2117/355704
Publisher versionhttps://docs.lib.purdue.edu/iracc/2208/
Collections
  • CTTC - Centre Tecnològic de la Transferència de Calor - Ponències/Comunicacions de congressos [278]
  • Departament de Màquines i Motors Tèrmics - Ponències/Comunicacions de congressos [429]
  View Usage Statistics

Show full item record

FilesDescriptionSizeFormatView
ZHE21-IP-CTTC.pdfBlocked3,865MbPDFRestricted access

Browse

This CollectionBy Issue DateAuthorsOther contributionsTitlesSubjectsThis repositoryCommunities & CollectionsBy Issue DateAuthorsOther contributionsTitlesSubjects

© UPC Obrir en finestra nova . Servei de Biblioteques, Publicacions i Arxius

info.biblioteques@upc.edu

  • About This Repository
  • Contact Us
  • Send Feedback
  • Privacy Settings
  • Inici de la pàgina