IMPROVING THE ENERGY PERFORMANCE OF RESIDENTIAL CLOTHESDRYERS Metadata

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Title

  • Main Title IMPROVING THE ENERGY PERFORMANCE OF RESIDENTIAL CLOTHESDRYERS

Creator

  • Author: Hekmat, D.
    Creator Type: Personal
  • Author: Fisk, W.J.
    Creator Type: Personal

Contributor

  • Sponsor: U.S. Atomic Energy Commission
    Contributor Type: Organization
    Contributor Info: USAEC

Publisher

  • Name: Lawrence Berkeley National Laboratory
    Place of Publication: Berkeley, California
    Additional Info: "Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States)"

Date

  • Creation: 1984-02-01

Language

  • English

Description

  • Content Description: Experiments were conducted to evaluate four techniques to improve the energy efficiency of electrically-heated domestic clothes dryers. Reduced air flow rate and heater input led to energy savings around 8%, while recirculation of a portion of the exhaust air back into the clothes dryer reduced energy consumption by approximately 18%. These two measures are attractive because of their low cost. Two modes of using an air-to-air heat exchanger for heat recovery were considered. The first is to preheat the inlet air with heat from the exhaust air, which resulted in 20 to 26% energy savings. The second mode is 100% recirculation of air through the dryer and a heat exchanger and condensation of water from this air in the heat exchanger by using indoor air. as a heat sink. This resulted in 100% heat recovery (i.e., all heat was rejected to indoors) but the energy consumption of the dryer was increased by up to 6%. To maximize energy savings, a clothes dryer with a heat exchanger can be equipped to operate in the preheating mode in the summer and in the recirculation/condensation mode in the winter. The last measure investigated recirculation, through a heat pump (i.e., dehumidifier), also resulted in a 100% heat recovery and, in addition, up to a 33% reduction in dryer energy consumption, but this technique also yielded long drying times.
  • Physical Description: 10 p.

Subject

  • Keyword: Heat Pumps
  • Keyword: Energy Consumption
  • Keyword: Heat Recovery
  • Keyword: Clothes Dryers
  • Keyword: Indoors
  • Keyword: Drying
  • Keyword: Heaters
  • STI Subject Categories: 32 Energy Conservation, Consumption, And Utilization
  • Keyword: Heat Sinks
  • Keyword: Water
  • Keyword: Energy Efficiency
  • Keyword: Heat Exchangers
  • Keyword: Heat Treatments
  • Keyword: Performance
  • Keyword: Air Flow

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: LBL--17501
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.2172/928697
  • Office of Scientific & Technical Information Report Number: 928697
  • Archival Resource Key: ark:/67531/metadc900551
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