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Improving The Efficiency Of Residential Air Distribution Systems In California Phase 1
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Book Synopsis Improving the Efficiency of Residential Air-distribution Systems in California, Phase 1 by :
Download or read book Improving the Efficiency of Residential Air-distribution Systems in California, Phase 1 written by and published by . This book was released on 1992 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of the first phase of a multiyear research project. The project's goal is to investigate ways to improve the efficiency of air-distribution systems in detached, single-family residences in California. First-year efforts included: A survey of heating, ventilating, and air conditioning (HVAC) contractors in California. A 31-house field study of distribution-system performance based on diagnostic measurements. Development of an integrated air-flow and thermal-simulation tool for investigating residential air-distribution system performance. Highlights of the field results include the following: Building envelopes for houses built after 1979 appear to be approximately 30% tighter. Duct-system tightness showed no apparent improvement in post-1979 houses. Distribution-fan operation added an average of 0.45 air changes per hour (ACH) to the average measured rate of 0.24 ACH. The simulation tool developed is based on DOE-2 for the thermal simulations and on MOVECOMP, an air-flow network simulation model, for the duct/house leakage and flow interactions. The first complete set of simulations performed (for a ranch house in Sacramento) indicated that the overall heating-season efficiency of the duct systems was approximately 65% to 70% and that the overall cooling-season efficiency was between 60% and 75%. The wide range in cooling-season efficiency reflects the difference between systems with attic return ducts and those with crawl-space return ducts, the former being less efficient. The simulations also indicated that the building envelope's UA-value, a measurement of thermoconductivity, did not have a significant impact on the overall efficiency of the air-distribution system.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CRC Handbook of Energy Efficiency by : Frank Kreith
Download or read book CRC Handbook of Energy Efficiency written by Frank Kreith and published by CRC Press. This book was released on 1996-10-24 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing the needs of engineers, energy planners, and policy makers, CRC Handbook of Energy Efficiency provides up-to-date information on all important issues related to efficient energy use, including: Efficient energy technologies Economics Utility restructuring Integrated resource planning Energy efficient building design Industrial energy conservation Wind energy Solar thermal systems Photovoltaics Renewable energy Cogeneration Fossil fuel cost projections The rapid changes that characterize the technology of energy generation systems, and the forthcoming competition among energy producers, make this handbook a must for anyone involved in the science, technology, or policy of energy. The 53 expert contributors from industry, government, and universities, and the 600+ figures and tables make CRC Handbook of Energy Efficiency a professional and valuable resource.
Book Synopsis Emerging Technologies to Improve Energy Efficiency in the Residential and Commercial Sectors by :
Download or read book Emerging Technologies to Improve Energy Efficiency in the Residential and Commercial Sectors written by and published by . This book was released on 1993 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note AIVC written by and published by . This book was released on 1991 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Introduction to Air Distribution System Upgrades for Buildings for Energy Efficiency by : J. Paul Guyer, P.E., R.A.
Download or read book An Introduction to Air Distribution System Upgrades for Buildings for Energy Efficiency written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2019-10-25 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for mechanical engineers and construction managers interested in air distribution system upgrades to improve energy efficiency. Here is what is discussed: 1. OVERVIEW OF AIR DISTRIBUTION SYSTEMS 2. AIR HANDLING SYSTEM TYPES 3. AIR DISTRIBUTION SYSTEM FANS 4. FILTERS 5. INSTALL VARIABLE-SPEED DRIVES 6. MODIFY CONTROLS 7. PICK PREMIUM EFFICIENCY MOTORS 8. USE ENERGY-EFFICIENT BELT DRIVES 9. CONSIDER A TESTING, ADJUSTING, AND BALANCING 10. SUMMARY 11. BIBLIOGRAPHY.
Book Synopsis Strategy Guideline: Compact Air Distribution Systems by :
Download or read book Strategy Guideline: Compact Air Distribution Systems written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Strategy Guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. Traditional systems sized by 'rule of thumb' (i.e., 1 ton of cooling per 400 ft2 of floor space) that 'wash' the exterior walls with conditioned air from floor registers cannotprovide appropriate air mixing and moisture removal in low-load homes. A compact air distribution system locates the HVAC equipment centrally with shorter ducts run to interior walls, and ceiling supply outlets throw the air toward the exterior walls along the ceiling plane; alternatively, high sidewall supply outlets throw the air toward the exterior walls. Potential drawbacks includeresistance from installing contractors or code officials who are unfamiliar with compact air distribution systems, as well as a lack of availability of low-cost high sidewall or ceiling supply outlets to meet the low air volumes with good throw characteristics. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering bothsupply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.
Book Synopsis Field Measurements of Efficiency and Duct Retrofit Effectiveness in Residential Forced Air Distributions Systems by :
Download or read book Field Measurements of Efficiency and Duct Retrofit Effectiveness in Residential Forced Air Distributions Systems written by and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forced air distribution systems can have a significant impact on the energy consumed in residences. It is common practice in U.S. residential buildings to place such duct systems outside the conditioned space. This results in the loss of energy by leakage and conduction to the surroundings. In order to estimate the magnitudes of these losses, 24 houses in the Sacramento, California, area were tested before and after duct retrofitting. The systems in these houses included conventional air conditioning, gas furnaces, electric furnaces and heat pumps. The retrofits consisted of sealing and insulating the duct systems. The field testing consisted of the following measurements: leakage of the house envelopes and their ductwork, flow through individual registers, duct air temperatures, ambient temperatures, surface areas of ducts, and HVAC equipment energy consumption. These data were used to calculate distribution system delivery efficiency as well as the overall efficiency of the distribution system including all interactions with building load and HVAC equipment. Analysis of the test results indicate an average increase in delivery efficiency from 64% to 76% and a corresponding average decrease in HVAC energy use of 18%. This paper summarizes the pre- and post-retrofit efficiency measurements to evaluate the retrofit effectiveness, and includes cost estimates for the duct retrofits. The impacts of leak sealing and insulating will be examined separately. 8 refs., 1 fig., 4 tabs.
Book Synopsis An Introduction to Air Distribution System Upgrades for Buildings for Energy Efficiency by : J. Paul Guyer
Download or read book An Introduction to Air Distribution System Upgrades for Buildings for Energy Efficiency written by J. Paul Guyer and published by Independently Published. This book was released on 2018-03-07 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication provides introductory technical guidance for mechanical engineers and other professional engineers, construction managers and building managers interested in design and construction of improvements for air distribution systems to improve energy efficiency while maintaining or improving the quality of occupant comfort. Here is what is discussed: 1. OVERVIEW OF AIR DISTRIBUTION SYSTEMS 2. AIR HANDLING SYSTEM TYPES, 3. AIR DISTRIBUTION SYSTEM FANS, 4. FILTERS, 5. INSTALL VARIABLE-SPEED DRIVES, 6. MODIFY CONTROLS, 7. PICK PREMIUM EFFICIENCY MOTORS, 8. USE ENERGY-EFFICIENT BELT DRIVES, 9. CONSIDER A TESTING, ADJUSTING, AND BALANCING CONTRACTOR, 10. SUMMARY, 11. BIBLIOGRAPHY
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1993-03 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy Abstracts for Policy Analysis by :
Download or read book Energy Abstracts for Policy Analysis written by and published by . This book was released on 1988 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy Efficiency Projects by : Lawrence Berkeley National Laboratory
Download or read book Energy Efficiency Projects written by Lawrence Berkeley National Laboratory and published by . This book was released on 2014 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation Models for Improved Water Heating Systems by : Jim Lutz
Download or read book Simulation Models for Improved Water Heating Systems written by Jim Lutz and published by . This book was released on 2013 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings: Residential technologies : design and operation by :
Download or read book Proceedings: Residential technologies : design and operation written by and published by . This book was released on 1992 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Buildings Energy Conservation written by and published by . This book was released on 1985 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Central Valley Project, West San Joaquin Division, San Luis Unit, California by : United States. Bureau of Reclamation
Download or read book Central Valley Project, West San Joaquin Division, San Luis Unit, California written by United States. Bureau of Reclamation and published by . This book was released on 1974 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
