Heat Pump Clothes Dryer, Commercial
Commercial Clothes Dryer: Heat Pump vs. Electric Resistant
Commercial clothes dryer that employs heat pump technology.
Heat pumps are highly valued both for their flexibility and their energy efficiency. Heat pump clothes dryers (HPCDs) are now in the early stages of deployment in the United States. Drying clothes is a growing source of electric consumption in the U.S., accounting for an estimated 6% of all residential electricity use. HPCDs require more time to dry a load of clothing than traditional dryers, but use 50% to 60% less energy. An additional benefit of HPCDs is their lower instantaneous power demand.
HPCDs have met with great success in Europe. In 2011, 47% of all dryers sold in Switzerland were HPCD, and 2012 regulations require that only HPCDs be sold in Switzerland. HPCDs are listed on the popular European "Topten" website, making it easy for consumers to find and compare models. In contrast, HPCDs have very poor availability within the U.S. ENERGY STAR is in the process of releasing the first list of ENERGY STAR-qualified HPCD models, which is expected to increase consumer acceptance and availability of this technology within the U.S.
A 2010 ACEEE study estimated that only 6% of all U.S. households run their clothes dryers often enough to see a cost benefit from a HPCD. The study noted that this estimate is sensitive to both the price of electricity and the first cost of the HPCD. The higher electricity costs in Europe may partly account for the enthusiasm of European customers for these more expensive – but more energy efficient – HPCDs.
The California Energy Commission conducted a market assessment of commercial clothes dryers within their state. They surveyed three distinct sectors: multi-family, coin-operated laundromats, and on-premise dryers used in hotels, motels, hospitals and various institutions. The number of 18 lb. capacity and 30 lb. capacity dryer units is estimated at 371,000. Prorating by population for the Northwest (4% of U.S. population versus 11.75%) indicates a Northwest dryer population of 0.34 x 371,000 units or 126,000 commercial dryers (Zhang, 2011).
Energy Savings: 50%
Energy Savings Rating:
Limited Assessment What's this?
|1||Concept not validated||Claims of energy savings may not be credible due to lack of documentation or validation by unbiased experts.|
|2||Concept validated:||An unbiased expert has validated efficiency concepts through technical review and calculations based on engineering principles.|
|3||Limited assessment||An unbiased expert has measured technology characteristics and factors of energy use through one or more tests in typical applications with a clear baseline. |
|4||Extensive assessment||Additional testing in relevant applications and environments has increased knowledge of performance across a broad range of products, applications, and system conditions. |
|5||Comprehensive analysis||Results of lab and field tests have been used to develop methods for reliable prediction of performance across the range of intended applications.|
|6||Approved measure||Protocols for technology application are established and approved.|