A thorough investigation of thermochemical heat storage system from particle to bed scale

Salt hydrates are promising candidates for the long-term thermochemical heat storage (TCES) in thebuilding environment. In such storage systems, the surplus of energy will be exploited in an endothermicreaction to dehydrate the salt hydrates. Once it is demanded, the stored energy will be released throughan exothermic reaction by hydrating the...

Effect of non-condensable gasses on the performance of a vacuum thermochemical reactor

A promising heat storage technique is based on thermochemical materials (TCM). Such materials are often used in closed systems under vacuum conditions, which is demonstrated in several projects in the European H2020 R&D programs. In this type of systems, non-condensable gasses (NCG) may have a significant effect on the reactor performance. This...

A review of salt hydrates for seasonal heat storage in domestic applications

A literature review is performed in order to collect and analyse the thermodynamic data of an utmost number of salt hydrate reactions (i.e., 563 reactions are reviewed). These data allow us to evaluate the theoretical possibilities and limitations of salt hydrates as thermochemical materials (TCMs) for seasonal heat storage in the built...

IEA SHC Task 42 / ECES Annex 29 - Working Group B: Applications of Compact Thermal Energy Storage

The IEA joint Task 42 / Annex 29 is aimed at developing compact thermal energy storage materials and systems. In Working Group B, experts are working on the development of compact thermal energy storage applications, in the areas cooling, domestic heating and hot water and industry. The majority of application projects were in the field of room...

Optimizing growth conditions for digoxin production in Digitalis lanata Ehrh

Objective: Digoxin is a therapeutic cardenolide widely used to treat various heart conditions such as atrial flutter, atrial fibrillation and heart failure in both Western as well as Chinese medicine. Digoxin is extracted from cultivated Digitalis lanata Ehrh. plants, known as Mao Hua Yang Di Huang in Chinese medicine. This manuscript presents...

Thermophysical characterization and thermal cycling stability of two TCM: CaCl2 and zeolite

At this moment, the global energy consumption in buildings is around 40% of the total energy consumption in developed countries. Thermal energy storage (TES) is presented as one way to address this energy-related problem proposing an alternative to reduce the gap between energy supply and energy demand. One way to store energy is using...

Experimental results of a 3 k Wh thermochemical heat storage module for space heating application

A 3 kWh thermochemical heat storage (TCS) module was built as part of an all-in house system implementation focusing on space heating application at a temperature level of 40 ºC and a temperature lift of 20 K. It has been tested and measurements showed a maximum water circuit temperature span (released by adsorption) of 20 – 51 K which is by all...

Thermophysical characterization of sorption TCM

Thermochemical materials (TCM) are proposed for thermal energy storage as one of the future options to achieve lower energy consumption in buildings and other industrial applications, as well as to store energy from solar energy. In this study, the thermophysical properties of two TCM, CaCl2 and zeolite, are determined with TGA and DSC and...

A review on the properties of salt hydrates for thermochemical storage

Solar energy is capable of supplying enough energy to answer the total demand of energy in dwellings. However, because of the discrepancy between energy supply and energy demand, an efficient way of storing thermal energy is crucial. Thermochemical storage of heat in salt hydrates provides an efficient and compact way of storing solar energy....

Design of a modular 3 kWh thermochemical heat storage system for space heating application

Metabolomics in the context of systems biology: Bridging Traditional Chinese Medicine and molecular pharmacology

The introduction of the concept of systems biology, enabling the study of living systems from a holistic perspective based on the profiling of a multitude of biochemical components, opens up a unique and novel opportunity to reinvestigate natural products. In the study of their bioactivity, the necessary reductionistic approach on single active...