Thermodynamic and kinetic investigation of a chemical reaction-based miniature heat pump

Flueckiger, Scott M.; Volle, Fabien; Garimella, Suresh V.; Mongia, Rajiv

doi:10.1016/j.enconman.2012.04.015

Cited by 9 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8 In the temperature range of interest for power plant cooling (<100 C), high volumetric and mass energy dense thermochemical storage systems demonstrating favorable kinetics are few, with the catalytic dimerization of acetaldehyde to paraldehyde standing out as an exception. 9 Further work needs to be done to identify additional reversible chemical reactions tailored to this temperature range and to better characterize and minimize irreversible side reactions that decrease the number of potential heating-cooling cycles that the materials can withstand.…”

Section: Applying Advanced Manufacturing To Air-cooled Heat Exchangersmentioning

confidence: 99%

An R&D Strategy to Decouple Energy from Water

Stark

Klausner

2017

Joule

View full text Add to dashboard Cite

show abstract

Section: Applying Advanced Manufacturing To Air-cooled Heat Exchangersmentioning

confidence: 99%

An R&D Strategy to Decouple Energy from Water

Stark

Klausner

2017

Joule

View full text Add to dashboard Cite

show abstract

“…[5]. Transformation of adsorbed AA into paraldehyde (CH 3 CHO) 3 enables us to use this couple of compounds in heat pumps [6]. In the present study, the effect of different additive like electronegative oxygen and electropositive potassium is investigated on the adsorption and decomposition of acetaldehyde by AES, TDS, high resolution electron energy loss spectroscopy (HREELS) and work function (∆Φ) methods.…”

Section: Introductionmentioning

confidence: 99%

The Role of Electronegative and Electropositive Modifiers in the Adsorption and Decomposition of Acetaldehyde on Rh(111) Surface

Kovács

Farkas

Szitás

et al. 2021

The 2nd International Electronic Conference on Catalysis Sciences—A Celebration of Catalysts 10th Anniversary

View full text Add to dashboard Cite

show abstract

“…In this paper, it is considered low temperature when it prevents its direct use for heating [17]. It can only be useful as a result of using geothermal heat pumps [18,19]. In rock formations, the process of extracting heat from the Earth results in freezing groundwater (in FBs) or may have the same effect (in BHEs).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Potential Use of Freezing Boreholes Drilled for an Underground Mine Shaft as Borehole Heat Exchangers for Heat and/or Cooling Applications

Sliwa,

Jaszczur,

Drosik

et al. 2024

Energies

View full text Add to dashboard Cite

Borehole engineering encompasses the part of mining that involves the process of drilling boreholes and their utilization (e.g., for research, exploration, exploitation, and injection purposes). According to legal regulations, mining pits must be closed after their use, and this applies to pits in the form of boreholes as well. The Laboratory of Geoenergetics at AGH University of Krakow is involved in adapting old, exploited and already closed boreholes for energetic purposes. This includes geothermal applications, as well as energy storage in rock formations and boreholes. Geoenergetics is a relatively new concept that combines geothermal energy with energy storage in rock formations (including boreholes). One type of analysed borehole is a freezing borehole. They are used, for example, in drilling mining shafts that are in the vicinity of aquifers and are drilled using the rotary drilling method with a reverse circulation of drilling mud, or in peat bogs. For borehole heat exchangers based on freezing boreholes for long-term mathematical modelling, several heating scenarios were considered with several thermal loads. The maximum average power obtained after one year of usage of four boreholes with variable temperatures was 11 kW. With the usage of 10 boreholes the power reached over 27 kW. The heat-carrying temperature was assumed to be 22 °C during early summer (June and July) and 2 °C during the rest of the year. When considering stable exploitation during a 10-year period with four boreholes with the same temperatures, a heating power of over 12 kW was obtained, as well as a power of over 28 kW when considering using 10 boreholes. The maximum amount of heat obtained during the 10-year period using 10 boreholes was over 8.8 thousand GJ. Once they have fulfilled their function, these boreholes lose their technological significance. In the paper, the concept is outlined, and the results of the analysis are described using the numerical program BoHEx.

show abstract

Thermodynamic and kinetic investigation of a chemical reaction-based miniature heat pump

Cited by 9 publications

References 25 publications

An R&D Strategy to Decouple Energy from Water

An R&D Strategy to Decouple Energy from Water

The Role of Electronegative and Electropositive Modifiers in the Adsorption and Decomposition of Acetaldehyde on Rh(111) Surface

Analysis of Potential Use of Freezing Boreholes Drilled for an Underground Mine Shaft as Borehole Heat Exchangers for Heat and/or Cooling Applications

Contact Info

Product

Resources

About