Cited by 13Adsorption and Cooling SystemsRefrigeration and Air Conditioning TechnologiesBuilding Energy and Comfort Optimization

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.

Desiccant-Assisted Air Conditioning System Relying on Solar and Geothermal Energy during Summer and Winter

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Abstract

At Hamburg University of Technology the combination of an open cycle desiccant-assisted air conditioning system and a geothermal system is investigated in the framework of different research projects for several years. The objective of this study is to investigate the energy efficiency of the overall system and to evaluate the geothermal system during summer and winter mode, based on data measured for a temperate climate region. Monitoring results of the performance for dehumidification and remoistening of supply air are presented. Furthermore, the investigated system is compared to reference air conditioning processes. During summer mode, an average dehumidification efficiency of 1.15 is achieved. The electrical energy savings compared to a conventional reference system sum up to 50% for the investigated cooling period. System operation during winter shows an average moisture recovery efficiency of 0.75. The electrical energy demand for air humidification is reduced by 50% compared to a system with electric isothermal air humidification. The geothermal system is operated efficiently throughout the year for cooling and heating application. Besides the energetic system evaluation, measured data regarding the soil temperature and thermal comfort are presented.

Overview

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Crossref · 10.3390/en12163175

Cites

34 of 34 references verified0 citation errors · 0 not checkable

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Metadata

Authors
Niemann, P., Richter, F., Speerforck, A., & Schmitz, G.
Affiliations
Hamburg University of Technology (DE)
Corresponding author
Niemann, Peter
Venue
Energies
Publisher
MDPI AG
Published
2019-08-19
Volume
12
Issue
16
Pages
3175
ISSN
1996-1073 (ISSN-L)
OpenAlex
W2968470358
Cited by
13
References
34
Citations by year
2025: 2 · 2024: 1 · 2023: 1 · 2022: 2 · 2021: 3 · 2020: 4
FWCI
1.27
Type
journal article
Language
en
Open access
Locations
  • Energies (publishedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • tub.dok (Hamburg University of Technology) (submittedVersion, cc-by)
  • TUHH Open Research (cc-by)
Funders
Bundesministerium für Wirtschaft und Energie (03ET1421A)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Adsorption and Cooling Systems
  • Physical Sciences › Engineering › Mechanical Engineering › Refrigeration and Air Conditioning Technologies
  • Physical Sciences › Engineering › Building and Construction › Building Energy and Comfort Optimization
Keywords
ground source heat pump, solar energy, dehumidification, air humidification, moisture recovery, electricity saving, seasonal operation, soil temperature, thermal comfort, temperate climate, energy efficiency

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