Testing of a Heat Pump Clothes Dryer
| Author | : D. McFadden |
| Publisher | : |
| Total Pages | : |
| Release | : 1995 |
| Genre | : Clothes dryers |
| ISBN | : |
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Testing Of A Heat Pump Clothes Dryer PDF Download
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A Novel Method to Determine Air Leakage in Heat Pump Clothes Dryers
| Author | : |
| Publisher | : |
| Total Pages | : 7 |
| Release | : 2016 |
| Genre | : |
| ISBN | : |
Download A Novel Method to Determine Air Leakage in Heat Pump Clothes Dryers Book in PDF, ePub and Kindle
A heat pump clothes dryer offers the potential to save a significant amount of energy as compared with conventional vented electric dryers. Although heat pump clothes dryers (HPCD) offer higher energy efficiency; it has been observed that they are prone to air leakages, which inhibits the HPCD's gain in efficiency. This study serves to develop a novel method of quantifying leakage, and to determine specific leakage locations in the dryer drum and air circulation system. The basis of this method is the American Society of Testing and Materials (ASTM) standard E779 10, which is used to determine air leakage area in a household ventilation system through fan pressurization. This ASTM method is adapted to the dryer system, and the leakage area is determined by an analysis of the leakage volumetric flow - pressure relationship. Easily accessible leakage points were quantified: the front and back crease (in the dryer drum), the leakage in the dryer duct, the air filter, and the remaining leakage in the drum. The procedure allows investigators to determine major components contributing to leakage in HPCDs, thus improving component design features that result in more efficient HPCD systems.
Clothing Wear and Tear of Heat Pump Vs. Electric Resistance Clothes Dryers
| Author | : |
| Publisher | : |
| Total Pages | : 23 |
| Release | : 2017 |
| Genre | : Clothes dryers |
| ISBN | : |
Download Clothing Wear and Tear of Heat Pump Vs. Electric Resistance Clothes Dryers Book in PDF, ePub and Kindle
"Heat pump clothes dryers are significantly more energy efficient than conventional (ENERGY STAR®) electric resistance clothes dryers. The goal of this project was to determine whether heat pump clothes dryers offer non-energy benefits—specifically, reduced clothing wear and tear—that could help consumer adoption. Multiple machine types ran over 100 dryer cycles, using loads specifically chosen to reflect a variety of fabric and fiber types. This project did not conclusively find that heat pump clothes dryers cause less wear than conventional dryers. However, the project was able to show that they do not cause more wear than conventional ENERGY STAR dryers. This project was a co-funded effort lead by Northwest Energy Efficiency Alliance with Pacific Gas and Electric. Over drying is a common occurrence in clothes dryers which are not ENERGY STAR certified and that do not have good automatic termination controls. This report contains an addendum to the Clothing Wear and Tear of Heat Pump vs. Electric Resistance Clothes Dryers study that investigated relative wear impact of heat pump clothes dryers compared to ENERGY STAR dryers. In this project additional cycles tested whether over drying from a conventional dryer caused additional clothing wear. The cycles were set to replicate the equivalent over drying that would occur in a dryer which is not ENERGY STAR certified over the course of 1-2 years. The project did not find statistically significant incremental damage to clothing from moderate over drying."--Publisher's description (viewed March 28, 2017).
Do Heat Pump Clothes Dryers Make Sense for the U.S. Market
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2010 |
| Genre | : |
| ISBN | : |
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Heat pump clothes dryers (HPCDs) can be as much as 50percent more energy-efficient than conventional electric resistance clothes dryers, and therefore have the potential to save substantial amounts of electricity. While not currently available in the U.S., there are manufacturers in Europe and Japan that produce units for those markets. Drawing on analysis conducted for the U.S. Department of Energy's (DOE) current rulemaking on amended standards for clothes dryers, this paper evaluates the cost-effectiveness of HPCDs in American homes, as well as the national impact analysis for different market share scenarios. In order to get an accurate measurement of real energy savings potential, the paper offers a new energy use calculation methodology that takes into account the most current data on clothes washer cycles, clothes dryer usage frequency, remaining moisture content, and load weight per cycle, which is very different from current test procedure values. Using the above methodology along with product cost estimates developed by DOE, the paper presents the results of a life-cycle cost analysis of the adoption of HPCDs in a representative sample of American homes. The results show that HPCDs have positive economic benefits only for households with high clothes dryer usage or for households with high electricity prices and moderately high utilization.
Addendum to Clothing Wear and Tear of Heat Pump Vs. Electric Resistance Clothes Dryers
| Author | : |
| Publisher | : |
| Total Pages | : 10 |
| Release | : 2017 |
| Genre | : Clothes dryers |
| ISBN | : |
Download Addendum to Clothing Wear and Tear of Heat Pump Vs. Electric Resistance Clothes Dryers Book in PDF, ePub and Kindle
"Over drying is a common occurrence in clothes dryers which are not ENERGY STAR certified and that do not have good automatic termination controls. This report contains an addendum to the Clothing Wear and Tear of Heat Pump vs. Electric Resistance Clothes Dryers study that investigated relative wear impact of heat pump clothes dryers compared to ENERGY STAR dryers. In this project additional cycles tested whether over drying from a conventional dryer caused additional clothing wear. The cycles were set to replicate the equivalent over drying that would occur in a dryer which is not ENERGY STAR certified over the course of 1-2 years. The project did not find statistically significant incremental damage to clothing from moderate over drying"--Publisher's description (viewed March 30, 2017).
Principles of Home Inspection: Air conditioning & heat pumps
| Author | : Carson Dunlop |
| Publisher | : Dearborn Real Estate |
| Total Pages | : 184 |
| Release | : 2003 |
| Genre | : Air conditioning |
| ISBN | : 9780793179343 |
Download Principles of Home Inspection: Air conditioning & heat pumps Book in PDF, ePub and Kindle
This comprehensive book is designed to provide you with knowledge and skills you need to inspect air conditioning systems and heat pumps like an experienced, professional home inspector.
Current Drying Processes
| Author | : Israel Pala-Rosas |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 140 |
| Release | : 2020-07-01 |
| Genre | : Technology & Engineering |
| ISBN | : 183880109X |
Download Current Drying Processes Book in PDF, ePub and Kindle
The drying stage is important in biotechnological and chemical processes because it allows the pretreatment of feedstocks with different moisture contents for their physical or chemical transformation. Drying also enables the post-treatment of products for their final presentation and packaging, thus having wide application in the food, agro-industrial, pharmaceutical, and chemical industries. Current Drying Processes presents recent advances in the development of drying operations through the presentation of chapters dealing with theoretical and experimental aspects of different technologies, namely solar, convective, fluidized, and ultrasonic drying, for organic and inorganic materials.
The Design of a Domestic Clothes Dryer Using a Heat Pump
| Author | : Joseph Morra |
| Publisher | : |
| Total Pages | : 86 |
| Release | : 1986 |
| Genre | : Clothes dryers |
| ISBN | : |
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Policies and Programs for Sustainable Energy Innovations
| Author | : Tugrul U. Daim |
| Publisher | : Springer |
| Total Pages | : 459 |
| Release | : 2015-04-21 |
| Genre | : Business & Economics |
| ISBN | : 3319160338 |
Download Policies and Programs for Sustainable Energy Innovations Book in PDF, ePub and Kindle
This volume features research and case studies across a variety of industries to showcase technological innovations and policy initiatives designed to promote renewable energy and sustainable economic development. The first section focuses on policies for the adoption of renewable energy technologies, the second section covers the evaluation of energy efficiency programs and the final section provides evaluations of energy technology innovations. Environmental concerns, energy availability and political pressure have prompted governments to look for alternative energy resources that can minimize the undesirable effects for current energy systems. For example, shifting away from the conventional fuel resources and increasing the percentage of electricity generated from renewable resources, such as solar and wind power, is an opportunity to guarantee lower CO2 emissions and to create better economic opportunities for citizens in the long run. Including discussions of such of timely topics and issues as global warming, bio-fuels and nuclear energy, the editors and contributors to this book provide a wealth of insights and recommendations for sustainable energy innovations.
Code of Federal Regulations
| Author | : |
| Publisher | : |
| Total Pages | : 734 |
| Release | : 2000 |
| Genre | : Administrative law |
| ISBN | : |
Download Code of Federal Regulations Book in PDF, ePub and Kindle
Special edition of the Federal Register, containing a codification of documents of general applicability and future effect ... with ancillaries.
