Search
Now showing items 1-10 of 90
Reducing Life Cycle Cost By Energy Saving in Pump Systems
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
Pumps consume about 15% of all electricity generated world wide. In the USA alone this accounts for over 130TWh per annum. A saving of only 1% would amount to $80 million in electricity cost. The importance of energy saving, ...
Beyond Energy Savings: Case Studies on Enhancing Productivity and Reducing Costs Through Energy Efficiency Investments
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
Promoting energy efficiency to corporate CEOs and CFOs based on energy savings alone has had limited success. Experience shows that energy efficiency projects' non-energy benefits often exceed the value of energy savings, ...
Compressed Air System Optimization
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
Several years ago I went to a gas station and noticed that my car's tires were low on air. I saw the gas station had an air compressor, but it cost a quarter to use the compressor. I paid my quarter and used the compressor. ...
Economical Aspects of Adjustable Speed Drives in Pumping Systems
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
Speed variations of pumps have become increasingly popular as the technology to produce variable frequency drives has progressed. Variable speed drives have many advantages compared to throttle valves when it comes to ...
Real Time Pricing Tie Line Control: A Case Study
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
A Tie Line Control System maintains the purchase quantity of electrical energy an industrial facility buys from a utility company. Implementing an advanced Tie Line Control system automates the buy versus make decision ...
Applications Tests of Energy Efficient, Environmentally Friendly Refrigerants
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
This paper describes performance demonstrations of two members of the Ikon® family of safe, environmentally friendly, high performance substitute refrigerants for replacement of R-12 and R-134a in manufacturing and facilities ...
Improve Industrial Temperature Measurement Precision for Cost-Effective Energy Usage
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
Temperature measurement and energy efficiencies have always been tightly interrelated. Recent years have seen substantial advancements in the ability to make industrial temperature measurements with absolute accuracy. This ...
Do VFD Energy Savings Outweigh Potential Mechanical Problems?
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
The use of Variable Frequency Drives (VFD's) for controlling rotating machinery has become relatively commonplace over the past ten to fifteen years. This sudden increase can be attributed to considerable strides in the ...
Energy and Reliability Considerations For Adjustable Speed Driven Pumps
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
Centrifugal devices such as pumps, fans, and compressors follow a general set of speed affinity laws:
Q2= Q1*(N2/N1) [Equation 1]; H2=H1*(N2/N1)2 [Equation2]; P2=P1*(N2/N1)3 [Equation 3]
where Q= flow rate, N = speed, ...
Following Where the Steam Goes: Industry's Business Opportunity
(Energy Systems Laboratory (http://esl.tamu.edu), 1999-05)
Many associated benefits accrue from plant projects which comprehensively address steam systems. The DOE-Alliance to Save Energy Steam Challenge program was initiated shortly after last year's IETC on April 30, 1998 to ...