Search results for: design-of-low-temperature-domestic-heating-systems

Design of Low temperature Domestic Heating Systems

Author : Bruce Young
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Low-temperature systems can improve energy efficiency and hence reduce fuel consumption and CO2 emissions. There is growing interest in low-temperature hydronic central heating systems, ie those where water is used as the medium to distribute heat around the building, and in which the water leaving the heat generator is limited to a lower temperature than in normal system design. This BRE Trust Report is aimed as a guide for those who wish to install low-temperature heating systems in dwellings, and concentrates on the calculations and other conditions necessary to ensure that low-temperature operation can be achieved. It became apparent during the preparation of this guide that there is no generally well-established and understood design method for low-temperature domestic heating systems. Instead of simply gathering information on current practice, the authors found it necessary to engage in extensive debate about many of the technical parameters governing system sizing, configuration and selection of components. Some of these have not been fully resolved. In particular, leading designers should give more attention to: -selection of a representative external temperature for heat loss calculations -allowance for building exposure -suitable heat loss calculators, conforming to stated rules -refined intermittency factors, perhaps using the advanced method set out in BS EN 12831:2003 -evaluation of emitter responsiveness, especially for emitters with fans -temperature-limiting controls, and modulation by reference to an upper temperature limit. The last item (controls) is especially important, as it is the water temperature at the heat generator that is the principal determinant of efficiency when low-temperature system designs are contemplated. Further development of standard design and operating practices (especially for controls) for low-temperature systems will be necessary before low-temperature systems can be recognised as a mature option capable of providing energy savings in all cases.

Manual of Design Criteria Military Construction High Temperature Hot Water Heating Systems

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Geothermal Heat Pumps Installation Guide

Author : Stephen K. Ewings
File Size : 64.66 MB
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Solar Energy Update

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File Size : 58.92 MB
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Energy Research Abstracts

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File Size : 32.3 MB
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Solar Heating Systems for Houses

Author : Werner Weiss
File Size : 86.94 MB
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The use of solar collectors for domestic hot water over the past 20 years has demonstrated that solar heating systems are now founded on a reliable and mature technology. However, the development of similar, but more complex, systems to provide both domestic hot water and space heating (solar combisystems) resulted in a diverse range of different designs that were not carefully optimized to reflect local climate and practice. Application of energy-efficient building strategies such as improved thermal insulation and use of low temperature heat supply systems is becoming increasingly common. This trend, combined with growing environmental awareness and the subsidies available in certain countries, favours an increase in market share for solar combisystems. The need for guidelines in selecting the appropriate system and designing this system according to the specific needs of the building and the local environment is therefore now increasingly pressing. This book fills that need.

International Aerospace Abstracts

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Energy Conservation Standards for Building Design Construction and Operation

Author : Fred S. Dubin
File Size : 26.77 MB
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Products and Priorities

Author : United States. War Production Board. Division of Budget Administration
File Size : 54.39 MB
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Building Industry Technology

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File Size : 83.49 MB
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Journal of Energy Resources Technology

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File Size : 45.13 MB
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Piping Systems Drafting and Design

Author : Louis Gary Lamit
File Size : 37.89 MB
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The American City County

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File Size : 51.71 MB
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HVAC Engineer s Handbook

Author : Fred Porges
File Size : 47.37 MB
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Hydraulics and Fluid Mechanics covers the proceedings of the First Australasian Conference. The book presents 29 papers that tackle several areas of concerns in fluid flow.

Industrial and Institutional Waste Heat Recovery

Author : Paul G. Stecher
File Size : 74.95 MB
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International Building Services Abstracts

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File Size : 86.63 MB
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Ambient Energy and Building Design

Author : John Edward Randell
File Size : 46.83 MB
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Proceedings

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Transactions of the American Society of Heating and Ventilating Engineers

Author : American Society of Heating and Ventilating Engineers
File Size : 74.49 MB
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Electrical Times

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