Laboratory Washer Cycle Optimization

Dan Ghidoni, Northeast Scientific Associates

Laboratory washers are used for a wide range of applications with varying requirements. The type of lab ware to be washed, the soiled condition and the required outcome all contribute to the requirements of the wash cycle. The four factors affecting the wash effectiveness are the time, temperature, chemical action and mechanical action. The use of variable speed water flow and on demand water heating serves to optimize all of the factors. This presentation introduces these new concepts in water flow control and water heating, optimizing the cycle to produce the required wash results while reducing water and energy consumption.

Learning Objectives

  • Identify and understand the factors that contribute to washing effectiveness
  • Quantify water and energy savings potential from controlled water flow.
  • Demonstrate the time and energy savings from on demand water heating.
  • Define optimized cycle for unique Zebra fish tank washing.


Dan and is an Applications Engineer for Northeast Scientific Associates and has 35 years' experience in the contamination control industry. He is responsible for providing equipment solutions for the control laboratory contaminants, and served as the lead engineer for Bakers Fume Hood and BSC product lines, and consults on custom wash solutions for Miele. He is a member of AALAS, ABSA, former chair of the ASHRAE Laboratory Committee, a member of the ASHRAE 110 Fume Hood Test Standard and an Eagleson Institute Faculty.


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