Adsorption heat pumps for heating applications: A review of current state, literature gaps and development challenges

Dias, João M.S.; Costa, V.A.F.

doi:10.1016/j.rser.2018.09.026

Cited by 59 publications

(33 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[50] Since the focus here is set to the use of MOFs, the reader is referred to a variety of publications for further reviewing and comparing different classes of adsorbents and adsorbent-adsorbate working pairs. [51,[56][57][58][59][60] Further, water is the natural choice as working fluid due to its non-toxicity and its high heat of evaporation (2258 kJ/kg). However, other working fluids even though inferior in the heat of evaporation come with advantages like higher pressure levels, less problems with hydrothermal stability (for the adsorbate), and a freezing point below 0°C (to allow for refrigeration applications).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Metal‐Organic Frameworks as Sorption Materials for Heat Transformation Processes

et al. 2020

View full text Add to dashboard Cite

Cyclic physical adsorption and desorption processes on porous materials can be used for the conversion of heat in heat transformation processes, which is the working principle in adsorption heat pumps (AHPs). Environmentally benign water with its high enthalpy of evaporation is the working fluid of choice in AHPs. Metal‐organic frameworks, MOFs can adsorb large amounts of water or methanol, up to their own weight. MOFs could be alternative materials to silica gels, zeolites, or aluminum phosphates for low‐temperature heat transformations in AHPs.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metal‐Organic Frameworks as Sorption Materials for Heat Transformation Processes

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Adsorption refrigeration systems are based upon a batch working principle where adsorption and desorption are combined alternatively [2,3]. The working fluid (usually water, ammonia, or methanol) is evaporated at the lowest temperature using the heat of evaporation Q eva .…”

Section: Introductionmentioning

confidence: 99%

Systematic Analysis of Materials for Coated Adsorbers for Application in Adsorption Heat Pumps or Refrigeration Systems

et al. 2020

View full text Add to dashboard Cite

Water vapor sorption in salt hydrates is a promising method to realize seasonal solar heat storage. Several of these materials have already shown promising performance for this application. However, a significant bottle neck for applications is the low thermal conductivity. In this study, several fabrication methods of the fixation of salts and their hydrates on metals to overcome the problem are presented. The products are analyzed concerning the hydration states, the corrosion behavior, the chemical compatibility, and the mechanical stability.

show abstract

“…For this reason, the availability of zeolites as an adsorbent was searched widely before. [42][43][44][45][46][47][48][49] Natural zeolites have been also used in many areas such as ecology, agriculture, livestock and poultry feeder, mining, aquaculture, petrochemical industries, energy recovery, alcohol, methyl chloride and ethyl ethane formation, cosmetic industry, and pollution control . 50 In the present paper, the first time in the literature, natural zeolite has been employed, experimentally tested, and evaluated as thermal storage material for PVT systems.…”

Section: Introductionmentioning

confidence: 99%

“…Zeolite is known as a good adsorbent of the water. For this reason, the availability of zeolites as an adsorbent was searched widely before . Natural zeolites have been also used in many areas such as ecology, agriculture, livestock and poultry feeder, mining, aquaculture, petrochemical industries, energy recovery, alcohol, methyl chloride and ethyl ethane formation, cosmetic industry, and pollution control …”

Section: Introductionmentioning

confidence: 99%

Energy, exergy, and economical analyses of a photovoltaic thermal system integrated with the natural zeolites for heat management

Kandilli

2019

Int J Energy Res

View full text Add to dashboard Cite

Summary In this study, the first time in the literature, natural zeolite has been employed for photovoltaic thermal (PVT) and experimentally tested as a thermal energy storage material. The main aim of the paper is to introduce natural zeolite as a heat storage material for PVT systems. The PVT systems integrated with phase change materials and natural zeolite were designed, the components of the system were explained, the thermodynamical modelling including the first and second laws was presented, the system performances were evaluated, performance parameters were investigated, energy and exergy efficiencies were determined, and economical analyses of each system were performed. Besides, all results were compared with a conventional PVT system. The average overall energy efficiency values for PVT experiments were 33% for paraffin, 37% for stearic acid, 40% for zeolite, and 32% for conventional PVT systems. The payback period of the PVT system with paraffin, zeolite, stearic acid, and conventional PVT was calculated as 10, 8, 9, and 9 years, respectively. The results show that the natural zeolite is a material with significant potential to be used for heat management in PVT for any meteorological condition.

show abstract

Adsorption heat pumps for heating applications: A review of current state, literature gaps and development challenges

Cited by 59 publications

References 57 publications

Metal‐Organic Frameworks as Sorption Materials for Heat Transformation Processes

Metal‐Organic Frameworks as Sorption Materials for Heat Transformation Processes

Systematic Analysis of Materials for Coated Adsorbers for Application in Adsorption Heat Pumps or Refrigeration Systems

Energy, exergy, and economical analyses of a photovoltaic thermal system integrated with the natural zeolites for heat management

Contact Info

Product

Resources

About