Towards development of a prototype high-temperature latent heat storage unit as an element of a RES-based energy system (part 2)

Karwacki, J.; Bogucka-Bykuć, K.; Włosiński, W.; Bykuć, Sebastian

doi:10.1515/bpasts-2016-0045

Cited by 2 publications

(4 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on previous experiments [ 31 ], three shell and tubes geometries, differing in the tubes diameter, were selected for comparison. It was assumed that: Typical copper tubes will be used to build the LHTES (except external housing); The distance between the tube walls is not less than 5 mm; The PCM is placed inside the pipes (cases 5–7); The PCM is placed outside the pipes (cases 8–10).…”

Section: Methodsmentioning

confidence: 99%

“…Only the volume between the first and the last layer of spheres was considered in the calculations. Based on previous experiments [31], three shell and tubes geometries, differing in the tubes diameter, were selected for comparison. It was assumed that:…”

Section: Construction Of Lhtes Containermentioning

confidence: 99%

“…A summary of the calculated parameters describing the packed bed geometers is presented in Table 4. Based on previous experiments [31], three shell and tubes geometries, differing in the tubes diameter, were selected for comparison. It was assumed that:…”

Section: Construction Of Lhtes Containermentioning

confidence: 99%

See 2 more Smart Citations

Cooling System with PCM Storage for an Office Building: Experimental Investigation Aided by a Model of the Office Thermal Dynamics

Karwacki

2021

Materials

View full text Add to dashboard Cite

The application of energy storage filled with phase-change material (PCM) is recently increasingly considered in active cooling systems. Such a design offers a higher density of thermal energy accumulation when compared with water storage. However, the optimum use of PCM storage is possible when its dynamic characteristics during the loading and unloading process are well recognized. Due to the complexity of the interaction between all elements of the heating/cooling system, a theoretical estimation of the profits is hard to perform in a reliable way. This is a significant problem at the design stage of the installation. In order to solve this problem, a laboratory experiment supported by a simulation was performed. The main aim of the experiment was to understand how the storage filled with the PCM in real-like conditions works. A test stand was made to investigate the effect of this solution on a reduced scale of 1:10. The PCM tested was RT15, a commercially available material that melts in the temperature range of 10–17 °C. The main parts of the stand are a chiller, an electric heater and thermal energy storage. The first two elements allowed a simulation of the thermal properties of the heat receiver, and their operation depended on the results from the numerical calculations. A lumped parameter model was used in mathematical description of the office building and its cooling system. The heat capacity of the system components as well as heat losses to the ambient environment were taken into account. The obtained results allowed the optimization of the control procedure and proved the validity of the applied investigation methods. This study confirmed the possibility of testing thermal energy storage with phase change material in real-like conditions.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Construction Of Lhtes Containermentioning

confidence: 99%

See 1 more Smart Citation

Cooling System with PCM Storage for an Office Building: Experimental Investigation Aided by a Model of the Office Thermal Dynamics

Karwacki

2021

Materials

View full text Add to dashboard Cite

show abstract

“…Measurement data from heat and power meters and data acquired by the PLC controller is transmitted to the SCADA HMI system for the visualization and registration of measurement and control data. The SCADA HMI system was developed in the PROMOTIC environment [15], and it also generates control signals which are transmitted to the system by the PLC controller.…”

Section: Control and Measurement System -Softwarementioning

confidence: 99%

A system for monitoring and controlling a thermal energy store and an energy capture system

Pietkiewicz,

Nalepa,

Miąskowski

et al. 2018

View full text Add to dashboard Cite

The structure and operating principles of a system for monitoring and controlling the operation of a thermal energy store have been presented in this study. As a novel feature of the presented solution, the device can be operated as a thermal energy store that relies on specific heat of fluids or phase transition heat when packages of phase change materials (PCM) are placed inside the device. Grates were used to arrange PCM packages in a manner that guarantees the flow of the heat transfer medium. The grates were equipped with temperature sensors to control thermal decomposition throughout the entire tank. The use of aerogel for thermal insulation was also a novel solution. Only a thin layer of aerogel was required to reduce heat loss across the tank wall. The structure and functionality of the modelled thermal energy store correspond to real-life conditions. The model can be used to test monitoring and control systems and to analyse the phenomena observed during the operation of similar devices. The operation of the thermal energy store can be regularly monitored and controlled on-line from any location in the world. The developed model supports the automatic import of operating parameters into a database for further analysis.

show abstract

Towards development of a prototype high-temperature latent heat storage unit as an element of a RES-based energy system (part 2)

Cited by 2 publications

References 23 publications

Cooling System with PCM Storage for an Office Building: Experimental Investigation Aided by a Model of the Office Thermal Dynamics

Cooling System with PCM Storage for an Office Building: Experimental Investigation Aided by a Model of the Office Thermal Dynamics

A system for monitoring and controlling a thermal energy store and an energy capture system

Contact Info

Product

Resources

About