Residential Gas-fired Heat Pumps PDF Download
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Author: Anthony J. Hlinak
Publisher:
ISBN:
Category : Heat pumps
Languages : en
Pages : 68
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Book Description
Author: Anthony J. Hlinak
Publisher:
ISBN:
Category : Heat pumps
Languages : en
Pages : 68
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Book Description
Author: American Gas Association
Publisher:
ISBN:
Category :
Languages : en
Pages : 76
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Book Description
Author:
Publisher:
ISBN:
Category : Gas
Languages : en
Pages : 30
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Book Description
Author: American Gas Association. Energy Systems Committee
Publisher:
ISBN:
Category : Electric heating
Languages : en
Pages : 76
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Book Description
Author: American Gas Association. Residential Marketing Committee
Publisher:
ISBN:
Category : Electric heating
Languages : en
Pages : 30
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Book Description
Author: Kevin P. Murphy
Publisher:
ISBN:
Category : Dwellings
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Gas-fired residential space heating in the U.S is predominantly supplied by furnaces and boilers. These technologies have been approaching their thermodynamic limit over the past 30 years and improvements for high efficiency units have approached a point of diminishing return. Electric heat pumps are growing in popularity but their heating performance at low ambient temperatures is poor. The development of a low-cost gas absorption heat pump would offer a significant improvement to current furnaces and boilers, and in heating dominated climate zones when compared to electric heat pumps. Gas absorption heat pumps (GAHP) exceed the traditional limit of thermal efficiency encountered by typical furnaces and boilers, and maintain high levels of performance at low ambient temperatures. The project team designed and demonstrated two low-cost packaged prototype GAHP space heating systems during the course of this investigation. Led by Stone Mountain Technologies Inc. (SMTI), with support from A.O. Smith, and the Gas Technology Institute (GTI), the cross-functional team completed research and development tasks including cycle modeling, 8× scaling of a compact solution pump, combustion system development, breadboard evaluation, fabrication of two packaged prototype units, third party testing of the first prototype, and the evaluation of cost and energy savings compared to high and minimum efficiency gas options. Over the course of the project and with the fabrication of two Alpha prototypes it was shown that this technology met or exceeded most of the stated project targets. At ambient temperatures of 47, 35, 17 and -13°F the prototypes achieved gas based coefficients of performance of 1.50, 1.44, 1.37, and 1.17, respectively. Both units operated with parasitic loads well below the 750 watt target with the second Alpha prototype operating 75-100 watts below the first Alpha prototype. Modulation of the units at 4:1 was achieved with the project goal of 2:1 modulation, which will allow for improved load matching. In addition, the energy savings analysis showed that a house in Albany, NY, Chicago, IL and Minneapolis, MN would save roughly 32, 28.5 and 36.5 MBtu annually when compared to a 100% efficient boiler, respectively. The gas absorption heat pump achieves this performance by using high grade heat from the combustion of natural gas in combination with low grade heat extracted from the ambient to produce medium grade heat suitable for space and water heating. Expected product features include conventional outdoor installation practices, 4:1 modulation, and reasonable economic payback. These factors position the technology to gain significant market penetration, resulting in a large reduction of energy use and greenhouse gas emissions for residential space heating.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
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Book Description
There has been considerable activity in recent years to develop technologies that could reduce or levelize residential and light-commercial building space cooling electrical use and heating/cooling energy use. For example, variable or multi-speed electric heat pumps, electric ground-source heat pumps, dual-fuel heat pumps, multi-function heat pumps, and electric cool storage concepts have been developed; and several types of gas heat pumps are emerging. A residential gas heat pump (GHP) benefits assessment is performed to assist gas utility and equipment manufacturer decision making on level of commitment to this technology. The methodology and generic types of results that can be generated are described. National market share is estimated using a market segmentation approach. The assessment design requires dividing the 334 Metropolitan Statistical Areas (MSAS) of the US into 42 market segments of relatively homogeneous weather and gas/electric rates (14 climate groupings by 3 rate groupings). Gas and electric rates for each MSA are evaluated to arrive at population-weighted rates for the market segments. GHPs are competed against 14 conventional equipment options in each homogeneous segment.
Author: Greg Pahl
Publisher: Chelsea Green Publishing
ISBN: 1603581561
Category : Technology & Engineering
Languages : en
Pages : 306
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Book Description
"Natural Home Heating" is the first comprehensive guide to heating your home with renewable energy sources. Greg Pahl offers a well-organized, easy-to-understand tour of all available home-heating options, including traditional oil and gas furnaces, wood stoves and masonry heaters, active and passive solar systems, and heat pumps. Included is everything you need to know about the fuels, systems, technologies, costs, and advantages and disadvantages of each option. Pahl teaches homeowners how to retrofit existing heating systems and choose renewable replacements, or design an entirely new house that can be heated comfortably with minimal environmental and financial impact. Consider: - 95% of American homes are heated with fossil fuels. - Oil and gas prices are up by more than 20% as supplies dwindle and sources become less reliable. - Home heating costs could double or even triple in the event of a fuel crisis. - The fossil fuel economy is unsustainable. - There are viable, clean, healthy, and afford able home heating alternatives! Learn how to burn environmentally friendly bio-diesel fuels, not just in your car, but in your furnace. Find out how a ground-source heat pump works and why it can achieve 400% heating efficiency. Discover what it takes to make burning wood truly sustainable. Natural Home Heating explains all these details and more, making it unique in the marketplace.
Author: G F Hundy
Publisher: Butterworth-Heinemann
ISBN: 0081006667
Category : Science
Languages : en
Pages : 512
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Book Description
Refrigeration, Air Conditioning and Heat Pumps, Fifth Edition, provides a comprehensive introduction to the principles and practice of refrigeration. Clear and comprehensive, it is suitable for both trainee and professional HVAC engineers, with a straightforward approach that also helps inexperienced readers gain a comprehensive introduction to the fundamentals of the technology. With its concise style and broad scope, the book covers most of the equipment and applications professionals will encounter. The simplicity of the descriptions helps users understand, specify, commission, use, and maintain these systems. It is a must-have text for anyone who needs thorough, foundational information on refrigeration and air conditioning, but without textbook pedagogy. It includes detailed technicalities or product-specific information. New material to this edition includes the latest developments in refrigerants and lubricants, together with updated information on compressors, heat exchangers, liquid chillers, electronic expansion valves, controls, and cold storage. In addition, efficiency, environmental impact, split systems, retail refrigeration (supermarket systems and cold rooms), industrial systems, fans, air infiltration, and noise are also included. Full theoretical and practical treatment of current issues and trends in refrigeration and air conditioning technology Meets the needs of industry practitioners and system designers who need a rigorous, but accessible reference to the latest developments in refrigeration and AC that is supported by coverage at a level not found in typical course textbooks New edition features updated content on refrigerants, microchannel technology, noise, condensers, data centers, and electronic control
