View
6
Download
0
Category
Preview:
Citation preview
Performance Analysis230 Ton York Chiller
Nashville, TN
®
Evaporcool Solutions, LLC5100 Wilfong Road, Memphis, TN 38134
Phone: 901 -382 -7809 Fax: 901 -382 -7819E -mail: ContactUs@evaporcool.com
Energy Performance Solutions21011 Hegar Road
Hockley, Texas 77447713-931-2735
www.energyps.com
® ®
PERFORMANCE ANALYSIS
Step 1: Baseline TestingThe performance of the test unit was recorded from 5/25/10 until 6/15/10.
Step 2: Installation of Evaporcool SystemThe Evaporcool System was installed on the test unit on 7/27/10.
Step 3: Comparison TestingThe performance of the test unit was recorded from 7/28/10 until 8/26/10.
The energy consumption of an Air-Cooled Chiller was recorded with and without the Evaporcool System at a facility located in Nashville, TN.
The test unit was a York (YCAS Model)
230 Ton High Efficiency R-22 Air-Cooled Chiller.
PERFORMANCE ANALYSIS
Nashville, TN
EVAPORCOOL SYSTEM
Definition: COOLING DEGREE DAY (“CDD”)
A unit used to relate the day's temperature to the energy demands of air conditioning. One cooling degree day occurs for each degree the daily mean temperature is above 65 Fahrenheit.
Examples:
Day 1 Day 2 Day 3Min 60 70 75Max 80 90 105Mean 70 80 90
- 65 - 65 - 65
CDD 5 15 25
To accurately determine savings, days with similar weather must be compared to one another. The industry standard metric is the Cooling Degree Day.
RESULTS
RESULTSBelow are the average energy consumption readings for
the Test Unit during the baseline test.
1500.00
2000.00
2500.00
3000.00
3500.00
4000.00
4500.00
5000.00
0 5 10 15 20 25
Without Evaporcool
Aver
age
kW
h
CDD
RESULTSWith the Evaporcool System, the energy consumption
was lower at all CDD’s.
1500.00
2000.00
2500.00
3000.00
3500.00
4000.00
4500.00
5000.00
0 5 10 15 20 25
Without Evaporcool
With Evaporcool
CDD
Aver
age
kW
h
RESULTS
CDD 11 12 13 14 17 19 20 21
Before (kWh) 3798.9 3777.6 4194.7 4221.7 4372.9 4603.0 4372.9 4355.4
Before Date 26-May-10 27-May-10 2-Jun-10 1-Jun-10 11-Jun-10 14-Jun-10 12-Jun-10 13-Jun-10
After (kWh)
2369.5 2546.2 2689.7 2611.0 2855.9 3002.8 3314.2 3299.0
After Date 26-Aug-10 24-Aug-10 18-Aug-10 23-Aug-10 17-Aug-10 30-Jul-10 28-Jul-10 29-Jul-10
Savings (kWh)
1429.5 1231.4 1505.0 1610.8 1517.0 1600.2 1058.6 1056.5
Savings (%) 37.6% 32.6% 35.9% 38.2% 34.7% 34.8% 24.2% 24.3%
Below is a comparison of individual days with identical CDD’s.
HOURLY RESULTSBelow is an hourly comparison of days with similar weather.
kWh
0.00
50.00
100.00
150.00
200.00
250.00
With Evaporcool (8/23/10)
Without Evaporcool (6/1/10)
OVERALL RESULTS
• Baseline Equipment Performance– Average Daily Energy Consumption 4,014.67 kWh– Average Daily High Temperature 89.0 degrees (f)
• Equipment Performance – with Evaporcool®
– Average Daily Energy Consumption 2,830.05 kWh– Average Daily High Temperature 93.3 degrees (f)
OVERALL RESULTS
• Baseline Equipment Performance– Average Daily Energy Consumption 4,014.67 kWh– Average Daily High Temperature 89.0 degrees (f)
• Equipment Performance – with Evaporcool®
– Average Daily Energy Consumption 2,830.05 kWh– Average Daily High Temperature 93.3 degrees (f)
Note that the average high temperature was much warmer during the period with the Evaporcool System installed.
OVERALL RESULTS
• Baseline Equipment Performance– Average Daily Energy Consumption 4,014.67 kWh– Average Daily High Temperature 89.0 degrees (f)
• Equipment Performance – with Evaporcool®
– Average Daily Energy Consumption 2,830.05 kWh– Average Daily High Temperature 93.3 degrees (f)
• Energy Savings– Average Daily Energy Savings 1,184.62 kWh– Savings as Percentage of Consumption 29.5%
Additional Savings
Additional �nancial bene�ts include:
1. Peak Demand Reduction;
2. Maintenance Savings;
3. Reduced Equipment Failure;
4. Increased Equipment Life;
5. Available Tax Benefits; or
6. Potential for Utility Rebates.
The previous case study only demonstrate savings from kWh reduction… but the Evaporcool System provides many additional bene�ts…
®
5100 Wilfong Road, Memphis, TN 38134Phone: 901 -382 -7809 Fax: 901 -382 -7819
E -mail: ContactUs@evaporcool.com
Energy Performance Solutions21011 Hegar Road, Hockley, Texas 77447
713-931-2735www.energyps.com
Recommended