Energy Conservation Study on Darigold Fluid Milk Plant, Issaquah, Washington.

Technical Report · Tue Jan 15 00:00:00 EST 1985

OSTI ID:6553502

Seton, Johnson & Odell, Inc.

This report presents the findings of an energy study done at Darigold dairy products plant in Issaquah, Washington. The study includes all electrical energy using systems at the plant, but does not address specific modifications to process equipment or the gas boilers. The Issaquah Darigold plant receives milk and cream, which are stored in large, insulated silos. These raw products are then processed into butter, cottage cheese, buttermilk, yogurt, sour cream, and powdered milk. This plant produces the majority of the butter used in the state of Washington. The Issaquah plant purchases electricity from Puget Sound Power and Light Company. The plant is on Schedule 31, primary metering. The plant provides transformers to step down the voltage to 480, 240, and 120 volts as needed. Based on utility bills for the period from July 1983 through July 1984, the Issaquah Darigold plant consumed 7,134,300 kWh at a total cost of $218,703.78 and 1,600,633 therms at a total cost of $889,687.48. Energy use for this period is shown in Figures 1.1 to 1.5. Demand charges account for approximately 23% of the total electrical bill for this period, while reactive charges account for less than 0.5%. The electrical usage for the plant was divided into process energy uses, as summarized in Figure 1.2. This breakdown is based on a 311-day processing schedule, with Sunday clean-up and holidays composing the 54 days of downtime.

• Research Organization: Seton, Johnson, and Odell, Inc., Portland, OR (USA)
• Sponsoring Organization: United States. Bonneville Power Administration.
• DOE Contract Number: AC79-84BP18944
• OSTI ID: 6553502
• Report Number(s): DOE/BP-18944-T2; ON: DE89005586
• Resource Relation: Other Information: Paper copy only, copy does not permit microfiche production
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
DAIRY INDUSTRY
ENERGY CONSERVATION
COMPRESSED AIR
ENERGY CONSUMPTION
FLOWSHEETS
HVAC SYSTEMS
LIGHTING LOADS
MAINTENANCE
NUMERICAL DATA
PROCESS CONTROL
PUMPS
REFRIGERATION
AC SYSTEMS
AGRICULTURE
AIR
COMPRESSED GASES
CONTROL
COOLING
DATA
DIAGRAMS
ENERGY SYSTEMS
FLUIDS
FOOD INDUSTRY
GASES
INDUSTRY
INFORMATION
POWER SYSTEMS
Dairy plants - Energy conservation - Case studies
320301* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Energy Sources
320303 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes