Design and Optimization of High Performance Adsorption-Based Thermal Battery

Electric vehicle (EV) technology faces a substantial challenge in terms of driving range, especially when the vehicle’s climate control system relies entirely on the onboard electric battery. Therefore, we are developing an advanced adsorption-based thermal battery (ATB) capable of delivering both heating and cooling for electric vehicles with minimal use of the electric battery bank. While adsorption based climate control systems offer the advantage of direct usage of primary thermal energy sources for operation, they typically have low COP values, and are often bulky and heavy. A compact and lightweight ATB is necessary to replace existing climate control systems in EVs that use electric battery for operation. In this paper, we present a detailed computational analysis of adsorption kinetics taking place within an adsorption bed that is capable of delivering large cooling and heating capacities by making use of novel adsorbents. The overall design of the adsorption bed, which is a critical element in achieving a high performance thermal battery, is also discussed. To make performance predictions, we characterized the adsorbents to obtain their thermophysical and transport properties as well as adsorption characteristics. The model consequently incorporates these measured properties to predict the performance variation as a function of time. This work provides the critical parameters affecting heating and cooling rates, and identifies avenues for further improvement in the overall performance of the thermal battery.

Download Full-text

Application of Heating Chamber on Peltier Effect Based Thermoelectric Refrigerator

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.a2783.059120 ◽

2020 ◽

Vol 9 (1) ◽

pp. 2149-2153

Keyword(s):

Control Systems ◽

Coefficient Of Performance ◽

Peltier Effect ◽

Thermoelectric Cooler ◽

Climate Control ◽

Heating Chamber ◽

Heating And Cooling

As we know Peltier Effect is the presence of heating and cooling at an electrified junction of two different conductors. Over the years we've realized that fridge and climate control systems are the most vitality devouring home apparatuses and because of this numerous analysts had concocted a lot of examines in this field. Therefore, to conquer these issues, we have thought of thermoelectric cooler with the help of various assemblies as a progression in this field. It has settled the issues of intensity utilization, cooling execution, vibrations and support. It has been ended up being one of the best headways in this situation, which has altered the previously mentioned issues. To make it progressively adjusted, we are reusing emanating warmth to change over it into a warming chamber to keep the things warm also. We are computing out its coefficient of performance and low electricity usage to demonstrate its effectiveness to be superior to different frameworks in the field.

Download Full-text

Matlab and Parallel Computing

Image Processing & Communications ◽

10.2478/v10248-012-0048-5 ◽

2012 ◽

Vol 17 (4) ◽

pp. 207-216 ◽

Cited By ~ 5

Author(s):

Magdalena Szymczyk ◽

Piotr Szymczyk

Keyword(s):

Image Processing ◽

Signal Processing ◽

Parallel Computing ◽

Distributed Computing ◽

Control Systems ◽

High Performance ◽

Parallel Applications ◽

Process Simulations ◽

Key Features ◽

Financial Process

Abstract The MATLAB is a technical computing language used in a variety of fields, such as control systems, image and signal processing, visualization, financial process simulations in an easy-to-use environment. MATLAB offers "toolboxes" which are specialized libraries for variety scientific domains, and a simplified interface to high-performance libraries (LAPACK, BLAS, FFTW too). Now MATLAB is enriched by the possibility of parallel computing with the Parallel Computing ToolboxTM and MATLAB Distributed Computing ServerTM. In this article we present some of the key features of MATLAB parallel applications focused on using GPU processors for image processing.

Download Full-text

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

10.26434/chemrxiv.9730694.v1 ◽

2019 ◽

Author(s):

Zhao-Yang Zhang ◽

Tao LI

Keyword(s):

Energy Density ◽

Solar Energy ◽

High Performance ◽

High Energy ◽

Solar Thermal ◽

High Energy Density ◽

Low Grade ◽

Thermal Battery ◽

Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

Download Full-text

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

10.26434/chemrxiv.9730694 ◽

2019 ◽

Author(s):

Zhao-Yang Zhang ◽

Tao LI

Keyword(s):

Energy Density ◽

Solar Energy ◽

High Performance ◽

High Energy ◽

Solar Thermal ◽

High Energy Density ◽

Low Grade ◽

Thermal Battery ◽

Low Grade Heat

Download Full-text

Assessment of the Impact of Climate Change on the Energy Efficiency of Climate Control Systems of Buildings

Zhilishchnoe Stroitel stvo ◽

10.31659/0044-4472-2020-1-2-21-24 ◽

2020 ◽

pp. 21-24

Author(s):

O.D. SAMARIN ◽

◽

K.I. LUSHIN ◽

Keyword(s):

Climate Change ◽

Energy Efficiency ◽

Control Systems ◽

Climate Control ◽

Impact Of Climate Change ◽

The Impact

Download Full-text

Numerical Evaluation of a HVAC System Based on a High-Performance Heat Transfer Fluid

Energies ◽

10.3390/en14113298 ◽

2021 ◽

Vol 14 (11) ◽

pp. 3298

Author(s):

Gianpiero Colangelo ◽

Brenda Raho ◽

Marco Milanese ◽

Arturo de Risi

Keyword(s):

Heat Transfer ◽

High Performance ◽

Cooling System ◽

Electrical Energy ◽

Simulation Software ◽

Heat Transfer Fluid ◽

Hvac System ◽

Dynamic Simulations ◽

Heating And Cooling ◽

The University

Nanofluids have great potential to improve the heat transfer properties of liquids, as demonstrated by recent studies. This paper presents a novel idea of utilizing nanofluid. It analyzes the performance of a HVAC (Heating Ventilation Air Conditioning) system using a high-performance heat transfer fluid (water-glycol nanofluid with nanoparticles of Al2O3), in the university campus of Lecce, Italy. The work describes the dynamic model of the building and its heating and cooling system, realized through the simulation software TRNSYS 17. The use of heat transfer fluid inseminated by nanoparticles in a real HVAC system is an innovative application that is difficult to find in the scientific literature so far. This work focuses on comparing the efficiency of the system working with a traditional water-glycol mixture with the same system that uses Al2O3-nanofluid. The results obtained by means of the dynamic simulations have confirmed what theoretically assumed, indicating the working conditions of the HVAC system that lead to lower operating costs and higher COP and EER, guaranteeing the optimal conditions of thermo-hygrometric comfort inside the building. Finally, the results showed that the use of a nanofluid based on water-glycol mixture and alumina increases the efficiency about 10% and at the same time reduces the electrical energy consumption of the HVAC system.

Download Full-text

Review of Intelligent Control Systems for Natural Ventilation as Passive Cooling Strategy for UK Buildings and Similar Climatic Conditions

Energies ◽

10.3390/en14154388 ◽

2021 ◽

Vol 14 (15) ◽

pp. 4388

Author(s):

Esmail Mahmoudi Saber ◽

Issa Chaer ◽

Aaron Gillich ◽

Bukola Grace Ekpeti

Keyword(s):

Control Systems ◽

Natural Ventilation ◽

Energy Use ◽

Integrated Control ◽

Climatic Conditions ◽

Effective Control ◽

Practical Implementation ◽

Optimal Output ◽

Heating And Cooling ◽

Building Cooling

Natural ventilation is gaining more attention from architects and engineers as an alternative way of cooling and ventilating indoor spaces. Based on building types, it could save between 13 and 40% of the building cooling energy use. However, this needs to be implemented and operated with a well-designed and integrated control system to avoid triggering discomfort for occupants. This paper seeks to review, discuss, and contribute to existing knowledge on the application of control systems and optimisation theories of naturally ventilated buildings to produce the best performance. The study finally presents an outstanding theoretical context and practical implementation for researchers seeking to explore the use of intelligent controls for optimal output in the pursuit to help solve intricate control problems in the building industry and suggests advanced control systems such as fuzzy logic control as an effective control strategy for an integrated control of ventilation, heating and cooling systems.

Download Full-text