Energy and Water Consumption Testing of a Conventional Dishwasher and an Adaptive Control Dishwasher.
Energy and Water Consumption Testing of a Conventional
Dishwasher and an Adaptive Control Dishwasher.
Castro, N. S.
International Appliance Technology Conference.
Proceedings. May 1997, Columbus, OH, 1-13 pp, 1997.
Sponsor:Department of Energy, Washington, DC
dishwasher; residential dishwashers; energy standards;
energy consumption; test procedures; water consumption;
In an effort to determine whether the Department of
Energy (DOE) test method for dishwashers, contained in
10 CFR Part 430, can effectively measure the energy and
water consumption of models using new technologies as
well as conventional models, tests were conducted on a
conventional and an adaptive control dishwasher. The
adaptive control dishwasher represents a class of
innovative models which measure certain quantities
(e.g., turidity, water temperature) and adapt to the
information by shortening or extending the wash cycle.
The results showed that the adaptive control model had
an energy factor of 2.41 cycles/MJ (0.67 cycles/kWh)
compared to 1.58 cycles/MJ (0.44 cycles/kWh) for the
conventional model. However, the high energy factor of
the adaptive control model, caused by the control action
to shorten the cycle due to the lack of soils in the
test method, is not representative of a typical cycle in
actual field applications. This points out the need for
revisions in the DOE dishwasher test procedure to obtain
efficiency factors which consumers can rely on for
making purchase decisions.