Category: Chiller Plants

The Trouble with Temperature Control

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Delta, or ∆, is the word or symbol used to describe a difference between two related measurements. In the HVAC world, ∆ is used in reference to the difference between return and supply chilled water temperature. While the calculation to determine ∆ T is simple (T of return water less T of supply water), fluctuations in this number can have costly and complex repercussions in a chilled water plant.

Chiller plants are designed with the assumption that ∆ T will remain constant during the entire operating process. This ensures that the load is working efficiently to provide the necessary cooling requirements for the building or space. When the difference between return and supply water changes, the result can cause insufficient cooling loads. The common response to this condition is to bring on additional chillers in order to meet the load. As a result, there are circumstances where both pump energy and chiller energy unnecessarily increase to run two chillers. tekWorx hydronic and mechanical experts allows us to advise clients as to the most efficient chiller strategy. Depending on the facility, there are times when running two chillers is more efficient than one and vice versa. Further, tekWorx CEO® system unlocks the existing capacity in your plant so that you actually produce the cooling the chiller is designed to produce– that means you no longer have to bring on extra chillers before it’s time. For more information on how tekWorx can correct central plant ∆ T, check out Our Approach.

DTE Energy Technical Seminar

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DTE Energy (Detroit Energy) is one of the nation’s largest diversified energy companies and focuses on rewarding those commercial customers making strides in energy efficiencies through financial incentives, resources and guides, and project financing assistance. DTE Energy’s Efficiency Program for Business also hosts seminars throughout the year with specific topics including energy consumption, cooling systems, efficient lighting installations, and information on new construction codes. In these seminars, experts share their experience and strategies relating to energy projects and the utility incentives they received to help offset capital costs.

On Thursday, March 6, 2014, DTE technical seminar will focus on cooling system optimization. tekWorx GM, Mike Flaherty, is featured at the event and will be sharing tips for optimizing chiller plants and how the CEO® system earned a major automotive plant DTE’s maximum energy rebate, $200K.

This event takes place at the University of Michigan-Dearborn campus. To see Mike and other experts share their experience with utility rebates, register here.

Section 179 Tax Deduction Set to Expire

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The final countdown has begun for the expiration of the Section 179 Deduction on December 31, 2013. Though discussion of yet another federal extension had been circulating the outcome was still unclear. While the tax provisions outlined in the deduction have notoriously been applied retroactively, some members of the industry rely on the write off, depreciation, and tax incentives each year to make new capital expenditure purchases for their business. Consequently, they were leery as to whether these such extensions would continue into 2014. With upwards of $2,500,000 granted to qualifying large business, the HVAC industrywas placed on their toes.

UPDATE: Thankfully, Section 179 has been restore to original limits for 2014, allowing industries to take a sigh of relief and continue to invest in their infrastructure.

Regardless of the Section 179’s continuance, retrofitting current facilities results in capital expenditure savings that help cushion businesses for other investments. tekWorx specializes in retrofitting current chiller plants using clients’ existing facilities enabling the system to run more efficiently and saving valuable resources to be spent on other investments rather than energy usage. To find out how much money your company could save with tekWorx, fill out our Chiller Plant Evaluation Form.