Innovas Technologies

CASE STUDY: VCU MEDICAL CENTER 2016

BACKGROUND In December 2014, VCU Medical Center in Richmond, VA installed Innovas Technologies’ Helios Tube Cleaning SystemTM on a 1200-ton Trane chiller identified as N. Hospital Chiller #1. Data were collected from existing chiller instrumentation before and after Helios Tube Cleaning System installation to analyze chiller energy efficiency and determine the Helios Tube Cleaning SystemTM impact on chiller efficiency.

DATA ANALYSIS METHOD ASHRAE Guideline 14 Measurement of Energy and Demand Savings provides protocols for measurement and validation of energy-saving initiatives and projects. ASHRAE 14 requires monitoring of pre-retrofit (baseline) performance and post-retrofit performance. From the baseline data, a multivariate regression analysis is performed to develop a predictive performance model for the chiller, and the baseline energy consumption can then be projected into the post-retrofit time period. The difference between the baseline energy use and the post-retrofit energy use represents the estimated energy savings. The results below represent the analysis of the data gathered from VCU in accordance with methods described in ASHRAE Guideline 14.

Implementation of Helios Tube Cleaning System improves chiller efficiency by 8% and reduces energy consumption by over 2 million kW-hrs.

Helios Tube Cleaning System Chiller Energy Savings Measurement & Validation.

INSTALLED HELIOS TCS SKID

INSTALLED 12” BALL TRAP

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15-­‐YR  PERFORMANCE  RESULTS   Energy  Consumption  (kW-­‐hrs)   GHG  Emissions  (tons)   Energy  Costs  ($)  Without  Helios  TCSTM   26,524,500   20,160   $2,122,000  With  Helios  TCSTM   24,405,000   18,550   $1,952,000  Savings   2,119,500   1,610   $170,000  

2015  PERFORMANCE  RESULTS   Avg.  Efficiency  (Kw/Ton)   Energy  Consumption  (kW-­‐hrs)   Energy  Costs  ($)  Without  Helios  TCSTM   0.33   1,768,300   $141,465  With  Helios  TCSTM   0.30   1,627,000   $130,160  Annual  Savings  (%  Savings)   0.03  (10%)   141,300  (8%)   $11,304  (8%)  

“With a conservative 15-yr estimated project life, energy cost savings for the life of the project exceed $170,000 and the project results in over 1,600 tons of reduced GHG emissions.”

IMPROVED ENERGY EFFICIENCY The chiller performance data points for both pre-Helios and post-Helios chiller efficiency are plotted in Figure 1. In accordance with ASHRAE 14 methodology, the data in orange show what the chiller efficiency would be without the HELIOS TCSTM installed, and the data in blue demonstrate the actual chiller efficiency with the HELIOS TCSTM in operation. The pre-Helios data distribution is significantly above the post-Helios data distribution, indicating the chiller consumed less energy per ton of cooling generated (kW/Ton) after Helios installation.

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Innovas Technologies is proudly certified as an ISO 9001 company. Key to our strategy is our commitment to quality --translating to our products providing superior effectiveness, reliability and longevity. We manufacture all products in the United States and we conform to the strictest design & build standards, ASME guidelines and engineering “Best Practices”.

Innovas Technologies LLC 2261 Crosspark Road, Suite 31 Coralvile, Iowa, 52241

INCREASED CHILLER COOLING CAPACITY In addition to the improved energy efficiency and reduced chiller energy consumption, the maximum cooling output of the chiller improved significantly as well. As observed in Figure 2 above, under the same input conditions, the chiller generated an average of 30-100 tons of additional cooling under maximum power input. At times, the chiller output capacity was increased by as much as 140 tons after Helios TCS installation! Importantly, the increased cooling capacity is greatest towards the end of the cooling season, just when maximum capacity is needed most!

“The chiller cooling output increased by an average of 30-100 tons, with total cooling ouput increased by as much as 140 tons after Helios TCS installation!.”