Experimental and CFD analysis of turbo ventilator

Jadhav, Ganesh K.; Ghanegaonkar, P. M.; Garg, Sharad

doi:10.1016/j.jobe.2016.04.001

Cited by 11 publications

(6 citation statements)

References 13 publications

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“…They draw air from the interior space, create a more favourable climate inside the building, work without any external supply of electric energy (Wang et al 2021a) and are driven by natural wind force. Whirlybirds are heat escape ports located high in the building; the primary motive forces are stack effect and wind induction, and they are operational even in the absence of wind flow because of the stack effect (Jadhav, Ghanegaonkar & Garg 2016).…”

Section: Artificial Ventilationmentioning

confidence: 99%

Environmental Ergonomics

2017

Human Factors in Control Room Design

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Peer review declarationThe publisher (AOSIS) endorses the South African 'National Scholarly Book Publishers Forum Best Practice for Peer Review of Scholarly Books'. The manuscript underwent an evaluation to compare the level of originality with other published works and was subjected to rigorous two-step peer review before publication, with the identities of the reviewers not revealed to the editor(s) or author(s). The reviewers were independent of the publisher, editor(s), and author(s). The publisher shared feedback on the similarity report and the reviewers' inputs with the manuscript's editor(s) or author(s) to improve the manuscript. Where the reviewers recommended revision and improvements, the editor(s) or author(s) responded adequately to such recommendations. The reviewers commented positively on the scholarly merits of the manuscript and recommended that the book be published.v Research justificationThis book focuses on the environmental ergonomics of restaurant kitchens and the challenges related hereto in a semi-tropical city, Durban, from a chef's perspective. It establishes the urgent need for commercial kitchens to be conducive to the wellbeing of kitchen workers, as heat illness is unreported in this industry. This research is relevant from occupational health and safety point of view. It evaluates the indoor environmental quality (IEQ) parameters such as heat, ventilation and humidity, noise and lighting in kitchens, and it is cognisant that with different cuisines, the kitchen loads are different. The goal of occupational safety is health intervention for worker comfort to enhance work performance. The book generates new knowledge regarding the factors affecting the body mass index of kitchen workers, prediction of heat and humidity near cooking stoves, discomfort near ovens, lighting in preparation areas and factors affecting reaction to stove noise. The book implements an exploratory design with multiple-case studies. The manuscript is structured into broad chapters on heat, ventilation and humidity, noise and lighting. Data analysis is an essential component of new knowledge, and a detailed description will promote certain research concepts among scholars to acquire research skills. The themes move from the hospitality industry in general and narrow down to commercial kitchens and specifically aim at students learning and training in culinary skills. The book accordingly scrutinises theory in respect of the relationship between individual differences and contextual components, and it factored these into controlled heat in a work environment and other IEQ parameters. This book advances existing physical conditions, as well as physiological and psychological influences of these parameters in commercial kitchens on worker relief-seeking behaviour adaptations. A ground-breaking new framework that optimises workstation comfort levels of kitchen workers is presented, hence offering insightful environmental contributions to improve commercial kitchen design and awareness among kitchen designers, erg...

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Section: Artificial Ventilationmentioning

confidence: 99%

Environmental Ergonomics

2017

Human Factors in Control Room Design

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“…Turbo ventilators use natural wind energy to function, making them both cost-effective and ecologically good because they do not require any external electricity. Meadows initially invented the turbo ventilator idea, which was later refined by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) [6]. Edmonds in Australia began commercial manufacturing of turbo ventilators in 1934, and they have been on the market for many years [6].…”

Section: Introductionmentioning

confidence: 99%

Prototype Development of Modified Roof Turbine Ventilator for Thermal Comfort Enhancement

Mithun Mondal,

Kamarul-Azhar Kamarudin,

Azian Hariri

et al. 2024

ARAM

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A mechanical ventilator known as a turbine ventilator harnesses the wind to supply natural ventilation. Due to their high performance and cheap running costs, these devices are increasingly being used to ventilate areas. This study evaluated the impact of a modified turbine ventilator system on thermal comfort and airflow inside a room. The results showed that the natural ventilation system failed to meet the ASHRAE Standard 55-2020 for thermal comfort. The installation of a turbine ventilator decreases the temperature by 1.3°C but still did not meet the standards. The modified turbine ventilator system consisted of a 305 mm diameter inner 12V, 12W exhaust fan installed in a 500 mm diameter ventilator and connected to a 50W, 12V Monocrystalline Solar Panel showed the greatest improvement with a decrease in room temperature of 4.4°C, an increase in airflow, and full compliance with the ASHRAE Standard 55-2020. The study concludes that modifications to the natural ventilation system can significantly improve thermal comfort and airflow, with the modified ventilator system being the most effective solution.

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“…There is a significant number of studies related to the experimental measurements or CFD simulations of RTV. Some of them are concentrating on the influence of height [6] or diameter [8], [9] on performance of the ventilator, the others -on different constructions and/or blades [10] or actual applications in buildings and improvement of IAQ [11]. Newer tendencies of research in the field of RTV are related to additional benefitsproduction of electricity using RTV [12], [13] or exploitation of solar energy to increase the efficiency of the device [14], [15].…”

Section: Introductionmentioning

confidence: 99%

“…Newer tendencies of research in the field of RTV are related to additional benefitsproduction of electricity using RTV [12], [13] or exploitation of solar energy to increase the efficiency of the device [14], [15]. Also, some studies show that wind driven ventilators can play an important role in the design of a cost effective and energy efficient ventilation system inside a building as they have low cost, require no maintenance and no electricity to run [6,8,11].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Annual Functionality of Roof Turbine Ventilator

et al. 2018

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Ventilation systems using renewable energy enable to reduce electricity demand. However, their operation directly depends on the stability of the renewable energy source. In this study, the wind driven roof turbine ventilator (RTV) is analysed. As a rule, this equipment is selected based only on the average annual wind speed and there exists a lack of date related to functionality of RTV. The case study presented in the paper seeks to assess functional operation of the RTV within the whole year. Simulations, performed with TRNSYS software, are based on the empirical equation for the ventilation flow rate extracted by the tested turbine ventilator. Results provide the number of RTV operational hours and share (%) of the time, when the RTV operates. Most of the time RTV operates at partial required load, however, there are periods when air flow rates are excessive and this should be considered as storage potential. The presented results could help to determine more accurately functional operation of RTV in the selected room/building and estimate demand for additional ventilation solutions as well energy storage potential.

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Experimental and CFD analysis of turbo ventilator

Cited by 11 publications

References 13 publications

Environmental Ergonomics

Environmental Ergonomics

Prototype Development of Modified Roof Turbine Ventilator for Thermal Comfort Enhancement

Simulation of Annual Functionality of Roof Turbine Ventilator

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