Renewable and Sustainable Air Conditioning

Rafique, M. Mujahid; Rehman, Shafiqur

doi:10.5772/intechopen.73166

Cited by 3 publications

(4 citation statements)

References 23 publications

(22 reference statements)

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“…Desiccant heating, cooling, and ventilation [ 12 , 13 , 14 , 15 ]; evaporative passive cooling [ 16 , 17 ]; solar heating and cooling systems [ 18 , 19 ]; geothermal heating and cooling systems [ 20 ]; and biomass heating and cooling technologies [ 21 , 22 ] are examples of renewable technologies that are used in HVAC systems in buildings.…”

Section: Energymentioning

confidence: 99%

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Sustainability of Heating, Ventilation and Air-Conditioning (HVAC) Systems in Buildings—An Overview

Asim

Badiei

Mohammad

et al. 2022

IJERPH

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Increasing demand on heating, ventilation, and air-conditioning (HVAC) systems and their importance, as the respiratory system of buildings, in developing and spreading various microbial contaminations and diseases with their huge global energy consumption share have forced researchers, industries, and policymakers to focus on improving the sustainability of HVAC systems. Understanding and considering various parameters related to the sustainability of new and existing HVAC systems as the respiratory system of buildings are vital to providing healthy, energy-efficient, and economical options for various building types. However, the greatest opportunities for improving the sustainability of HVAC systems exist at the design stage of new facilities and the retrofitting of existing equipment. Considering the high available percentage of existing HVAC systems globally reveals the importance of their retrofitting. The attempt has been made to gather all important parameters that affect decision-making to select the optimum HVAC system development considerations among the various opportunities that are available for sustainability improvement.

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Section: Energymentioning

confidence: 99%

“…Modified and improved designs for various components in HVAC systems, such as dampers dampers [ 25 , 26 ], filters [ 27 , 28 ], humidifier, dehumidifier [ 29 , 30 ], heating and cooling coils [ 31 ], and ducts and fans [ 27 , 32 ], can reduce the energy consumption of such systems while optimizing their performance [ 13 ].…”

Section: Energymentioning

confidence: 99%

Sustainability of Heating, Ventilation and Air-Conditioning (HVAC) Systems in Buildings—An Overview

Asim

Badiei

Mohammad

et al. 2022

IJERPH

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“…The expanding utilization of fossil fuels not only leads to the quick exhaustion of energy sources but also causes the production of destructive gases, which straightforwardly influences humankind. An outline of the immediate and circuitous impacts of climatic changes as a result of consuming fossil fuels are revealed in Figure 2 (Rafique and Rehman, 2018). Comprehending the concealed effects of fossil fuels and its impacts on the wellbeing of humans is crucial for evaluating the sustainability of air conditioning and reinforcing more noteworthy decisions for future energy generations.…”

Section: The Requirement Of Renewables-based Systemsmentioning

confidence: 99%

A Feasibility Study for the Optimized Development of Renewable Air-Conditioning for Different Climatic Conditions

Oye

Gupta

Goh

et al. 2020

EMSD

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This paper aims to present renewable air-conditioning as a sustainable system for varied climatic conditions with the feasibility of optimization to reduce the level of energy consumption and the rate of carbon emissions. Extreme use of air-conditioning has caused substantial growth in the level of energy consumption and carbon emissions. This fact clarifies the requirement for considering improvement applications of renewable energy sources for air-conditioning systems. The components of solar air-conditioning are studied and employed as the basis for system optimization. The approach this paper presented implements a key component-based modelling analysis of renewables and modelling concepts that the geometry of this air-conditioning is founded on. The optimized model is performed using Polysun program, a renewable system analysis tool. As an exercise in the system modelling, the principle component analysis also accounts for the renewables of air-conditioning in relation to the context of the application and with respect to their integration into the climatic conditions of London, Toulouse and Rome. This, in turn, allows for the interpretation of the findings on the significance of renewables in energy consumption and carbon emissions. It also allows for the generation of a sustainability-based system that can reduce the level of energy consumption and the rate of carbon emissions. In this way, this paper uncovers the significance of renewables as a source of clean energy and sustainable practice in air-conditioning. It also reveals the particular contribution they make to the levels of energy consumption and carbon emissions that not only tackles global warming but also combats climate change.

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“…21 Generally, an air conditioning system should be maintained indoor air relative humidity (RH) in the range of 40%-70% to provide human thermal comfort conditions. 22 As per IIR (International Institute of Refrigeration, Paris) report, the amount of energy consumed by HVAC (Heating, ventilation, and air conditioning) systems in residential and commercial buildings is around 45%. 23 The air conditioning load has two components, one is latent heat (humidity) load, and another is sensible heat (dry-bulb temperature) load.…”

Section: Introductionmentioning

confidence: 99%

Fabrication, characterization, and evaluation of desiccant doped hydrogel films for potential air‐dehumidification applications

Bhowmik

Dharmalingam

Halder

et al. 2021

J of Applied Polymer Sci

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Temperature-independent humidity control through desiccant material provides a substantial impact on minimizing energy shortages and reduces environmental problems without compromising human thermal comfort. In the present study, desiccant (lithium bromide: calcium chloride) doped sodium carboxymethyl cellulose (NaCMC) films using citric acid as a crosslinker were developed to explore the air dehumidification and regeneration capability of films. Films were prepared at various desiccant concentrations (5%, 10%, and 20%), and were characterized using X-ray powder diffraction (XRD), thermogravimetric (TG), moisture absorption, and water vapor permeability (WVP) analysis. XRD analysis revealed that there were no characteristic peaks of desiccants in the film samples, which indicated that the mixing of desiccants was homogeneous in the films. Moisture absorption and TG analysis revealed that films contained 10% desiccants showed an effective instantaneous moistureholding capacity and faster regeneration rate, respectively, compared to 5% and 20% desiccant doped hydrogel films. It was found from WVP test that increasing amount of desiccants decreased the WVP due to reduction in intermolecular space in the prepared films. Further, a comprehensive comparison was made to visualize the effectiveness of developed desiccant films. All these data recommend that the prepared desiccant doped films can be used for potential air dehumidification applications.

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Renewable and Sustainable Air Conditioning

Cited by 3 publications

References 23 publications

Sustainability of Heating, Ventilation and Air-Conditioning (HVAC) Systems in Buildings—An Overview

Sustainability of Heating, Ventilation and Air-Conditioning (HVAC) Systems in Buildings—An Overview

A Feasibility Study for the Optimized Development of Renewable Air-Conditioning for Different Climatic Conditions

Fabrication, characterization, and evaluation of desiccant doped hydrogel films for potential air‐dehumidification applications

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