Showing 1 - 10 of 29
Thermal energy storage (TES) is moving towards thermochemical materials (TCM) which present attractive advantages compared to sensible and phase change materials. Nevertheless, TCM are more complex to characterize at lab scale and also the implied technology, which belongs to the chemical...
Persistent link: https://www.econbiz.de/10011264085
This paper presents a modeling and optimization investigation of a solar driven adsorption cooling system working with activated carbon–methanol pair. It deals with the effect of internal fins on the thermal behavior of the adsorber and on the system performance. A two-dimensional model...
Persistent link: https://www.econbiz.de/10011264377
A heat and mass coupled model is developed for the pavement snow melting systems that utilize low-temperature heating fluids. This model is implemented in HVACSIM (heating ventilation air conditioning SIMulation) Plus and used to simulate the performance of hydronically heated pavement. The...
Persistent link: https://www.econbiz.de/10011190908
The regenerator is one of the essential components in a liquid desiccant air-conditioning system, whose efficiency directly influences the system performance. A performance test-bed for a cross-flow regenerator was established in the present analysis. Celdek structured packings were used in the...
Persistent link: https://www.econbiz.de/10010803968
A uniform pressure model is presented to describe the heat and mass transfer in an adsorbent bed for a flat plate solar ice maker. This model accounts for heat and mass transfer in a porous bed in a two-dimensional transient process. An experiment has been conducted to validate this model and...
Persistent link: https://www.econbiz.de/10010804234
Flat-tube solid oxide fuel cells (FT-SOFCs) are advantageous because of their easy sealing, low stack volume and low resistance to current collection. The performance of FT-SOFCs is determined by the electrochemical reaction, which is closely linked to the heat and mass transfer inside the cell....
Persistent link: https://www.econbiz.de/10010804294
Dehumidifier is the core component in a liquid desiccant air-conditioning system, whose efficiency directly affects the whole performance. In this study a cross-flow dehumidifier was established in which LiCl solution and Celdek structured packing were used. Enthalpy efficiency and moisture...
Persistent link: https://www.econbiz.de/10010804540
Fuel cells convert the chemical energy present in fuel (e.g., hydrogen) into electrical energy with high efficiency, low pollution and low noise. Of the various types of fuel cells, the solid oxide fuel cell (SOFC) was developed specifically for power plants and residual power systems. SOFCs are...
Persistent link: https://www.econbiz.de/10010805315
The regenerator is one of the key components in liquid desiccant air-conditioning systems, in which desiccant is concentrated and can be reused in the system. The regeneration heat is supplied into the regenerator by either hot air or hot desiccant. The heat and mass transfer performances of...
Persistent link: https://www.econbiz.de/10010805888
A two dimensional modeling is developed in the reduction zone of a fixed bed downdraft biomass gasifier based on mass, energy and momentum conservation equations written for the solid and fluid phases and coupled with chemical kinetics. Kinetics parameters are derived from previous works and an...
Persistent link: https://www.econbiz.de/10010806335