Search results

1 – 10 of over 1000
Book part
Publication date: 5 June 2023

Sonali A. Deshmukh, Praveen Barmavatu, Mihir Kumar Das, Bukke Kiran Naik, Vineet Singh Sikarwar, Alety Shivakrishna, Radhamanohar Aepuru and Rathod Subash

This study has covered many types of solar-powered air-conditioning systems that may be used as an alternative to traditional electrically powered air-conditioning systems in…

Abstract

This study has covered many types of solar-powered air-conditioning systems that may be used as an alternative to traditional electrically powered air-conditioning systems in order to reduce energy usage. Solar adsorption air cooling is a great alternative to traditional vapor compression air-conditioning. Solar adsorption has several advantages over traditional vapor-compression systems, including being a green cooling technology which uses solar energy to drive the cycle, using pure water as an eco-friendly HFC-free refrigerant, and being mechanically simple with only the magnetic valves as moving parts. Several advancements and breakthroughs have been developed in the area of solar adsorption air-conditioners during the previous decade. However, further study is required before this technology can be put into practise. As a result, this book chapter highlights current research that adds to the understanding of solar adsorption air-conditioning technologies, with a focus on practical research. These systems have the potential to become the next iteration of air-conditioning systems, with the benefit of lowering energy usage while using plentiful solar energy supplies to supply the cooling demand.

Book part
Publication date: 22 December 2016

Neil Hewitt, Ye Huang, Mingjun Huang and Caterina Brandoni

Currently heating and cooling in buildings is responsible for over 30% of the primary energy consumption in the United Kingdom with a similar amount in China. We analyze heat…

Abstract

Purpose

Currently heating and cooling in buildings is responsible for over 30% of the primary energy consumption in the United Kingdom with a similar amount in China. We analyze heat pumps and district thermal energy network for efficient buildings. Their advantages are examined (i.e., flexibility in choosing heat sources, reduction of fuel consumption and increased environmental quality, enhanced community energy management, reduced costs for end users) together with their drawbacks, when they are intended as means for efficient building heating and cooling.

Methodology/approach

A literature review observed a range of operating conditions and challenges associated with the efficient operation of district heating and cooling networks, comparing primarily the UK’s and China’s experiences, but also acknowledging the areas of expertise of European, the United States, and Japan. It was noted that the efficiency of cooling networks is still in its infancy but heating networks could benefit from lower distribution temperatures to reduce thermal losses. Such temperatures are suitable for space heating methods provided by, for example, underfloor heating, enhanced area hydronic radiators, or fan-assisted hydronic radiators. However, to use existing higher temperature hydronic radiator systems (typically at a temperatures of >70°C) a modified heat pump was proposed, tested, and evaluated in an administrative building. The results appears to be very successful.

Findings

District heating is a proven energy-efficient mechanism for delivering space heating. They can also be adaptable for space cooling applications with either parallel heating and cooling circuits or in regions of well-defined seasons, on flow and return circuit with a defined change-over period from heating to cooling. Renewable energy sources can provide either heating or cooling through, for example, biomass boilers, photovoltaics, solar thermal, etc. However, for lower loss district heating systems, lower distribution temperatures are required. Advanced heat pumps can efficiently bridge the gap between lower temperature distribution systems and buildings with higher temperature hydronic heating systems

Originality/value

This chapter presents a case for district heating (and cooling). It demonstrates the benefits of reduced temperatures in district heating networks to reduce losses but also illustrates the need for temperature upgrading where building heating systems require higher temperatures. Thus, a novel heat pump was developed and successfully tested.

Details

China and Europe’s Partnership for a More Sustainable World
Type: Book
ISBN: 978-1-78635-331-3

Keywords

Book part
Publication date: 1 February 2023

Pascal de Vries and Igor ter Halle

This chapter presents results of a research project in which we give direction to the further design of the technical research that will lay the foundation for an automated…

Abstract

This chapter presents results of a research project in which we give direction to the further design of the technical research that will lay the foundation for an automated digital feedback module. This module will help residents in saving energy and making home improvements in the context of the heat/energy transition. Interviews with residents and field experts were used to gain data about motivations and barriers residents experience when making home adjustments in the heat transition. Results reveal the experiences residents have in this transition. Based on the results, recommendations are made for the further development of an automated digital feedback module.

Details

(Re)discovering the Human Element in Public Relations and Communication Management in Unpredictable Times
Type: Book
ISBN: 978-1-80382-898-5

Keywords

Abstract

Details

Urban Transport and the Environment
Type: Book
ISBN: 978-0-08-047029-0

Book part
Publication date: 7 November 2011

Nikolai Ivanovich Sieber

The appearance of the present chapter six years after the publication of Marx's Capital and more than a year after its translation into Russian might seem somewhat untimely, if…

Abstract

The appearance of the present chapter six years after the publication of Marx's Capital and more than a year after its translation into Russian might seem somewhat untimely, if not entirely superfluous. Who in our country has not read Marx's works, or at least heard of him; who does not know that besides interesting and instructive facts, his work contains new and important socio-political truths? No doubt many have read it and heard of it, but I permit myself to doubt, and not only in an a priori fashion, but on the basis of extensive observation, whether many have gained from a reading of the book a clear and precise understanding of the topics which are treated therein. Are there many who have managed to distinguish in it what is significant from what is of small importance, who have noticed what constituted the core elements or the framework of the whole theoretical edifice as opposed to the detail, which serves only to decorate it, who have been properly aware, what Marx introduced that was new into the consciousness of his contemporaries, and what, on the contrary, did not belong to him, but to his predecessors? We repeat that from frequent observations we have become convinced of the contrary. With some very few exceptions, we have so far not managed to come across people who have understood the significance of Marx's researches in their entirety. Some – and these constitute the majority – are barred on the way to an elucidation of the essence of the matter by Marx's doctrine of the forms of value; others – by the difficult, and, if the truth be told, somewhat scholastic language in which a considerable part of the book is written; and others again are put off by the unaccustomed complexity of the subject and the ponderous argumentation encased in the impenetrable armor of Hegelian contradictions. And not only in Russia, but abroad as well Marx has fared no better. One only has to read reviews by some Baumert, Siebel or the reviewer in Bruno–Hildebrand's Jahrbücher, R. (presumably Rössler) to see at once that all these gentlemen possess one important advantage over the majority of Russian readers in that they not only could not, but also would not understand Marx's investigations. Thus, the above reviewer puts to Marx, among others, the following question: “we would like it if someone were finally to explain to us why the food which finds its way into the stomach of a worker serves as the source of the formation of surplus value, whereas food eaten by a horse or an ox lacks the same significance.” If such a “someone” were really to be found, in which the author of the review expresses serious doubt, then he would probably explain the matter in the following way: that economists and sociologists, to whose number Marx belongs, had to date the weakness to think that the chief object of their investigations was human society, and not the society of domestic animals, horned or otherwise, and therefore they are concerned with that surplus value which is produced by human beings. If, like Darwin, they studied natural science, they would probably have found something like surplus value among various other animals, for example, among different species of ant or bee. Generally speaking, not counting Lange's book on the worker question, and the reviews of some people directly involved with the practical consequences of Marx's ideas, the foreign press presents almost not a single line which would evince in its author the desire and the ability to understand the general significance of Marx's work. These deficiencies, especially the second one, are characteristic of even those writers, like Schäffle, who are quite favorably disposed towards Marx and are aware of his scientific achievements.

Details

Revitalizing Marxist Theory for Today's Capitalism
Type: Book
ISBN: 978-1-78052-255-5

Abstract

Details

Embracing Chaos
Type: Book
ISBN: 978-1-83753-635-1

Book part
Publication date: 29 November 2012

William J. Makofske

The use of fossil fuels in developing countries places increasing economic, health, and environmental costs on the population. In decentralized and rural communities without…

Abstract

The use of fossil fuels in developing countries places increasing economic, health, and environmental costs on the population. In decentralized and rural communities without existing grid systems, direct solar technologies provide the basis for electricity production, for water pumping and hot water, and for heating of houses. Examples and case studies for each of these direct solar technologies are presented which may be directly applicable or potentially modified for rural development in countries such as Uzbekistan and Turkmenistan, which have ample direct solar resources. Related design involving both daylighting and passive cooling are described as part of the incorporation of passive solar heating techniques.

Details

Disaster by Design: The Aral Sea and its Lessons for Sustainability
Type: Book
ISBN: 978-1-78190-376-6

Abstract

Details

Teaching from the Emerging Now
Type: Book
ISBN: 978-1-80043-724-1

Book part
Publication date: 8 December 2016

John Robinson

This is a case study on the opportunities provided by Open Source library systems and the experience of delivering these systems through a shared service.

Abstract

Purpose

This is a case study on the opportunities provided by Open Source library systems and the experience of delivering these systems through a shared service.

Methodology/approach

This chapter derives from desk research, interviews, and direct involvement in the project. The format is a case study, setting out a detailed timeline of events with information that can be applied in other settings.

Findings

This chapter presents reflections on the value and limitations of collaboration amongst libraries and librarians on an innovative approach to library systems and technologies. It also presents reflections on lessons learned from the processes and detailed discussion of the success factors for shared services and the reasons why such initiatives may not result in the outcomes predicted at the start.

Practical implications

Libraries and IT services considering Open Source and shared service approaches to provision will find material in this study useful when planning their projects.

Social implications

The nature of collaboration and collaborative working is studied and observations made about the way that outcomes cannot always be predicted or controlled. In a genuine collaboration, the outcome is determined by the interactions between the partners and is unique to the specifics of that collaboration.

Originality/value

The case study derives from interviews, written material and direct observation not generally in the public domain, providing a strong insider’s view of the activity.

Details

Innovation in Libraries and Information Services
Type: Book
ISBN: 978-1-78560-730-1

Keywords

1 – 10 of over 1000