1715304

4409 -- Thermal Performance of Residential Electric Water Heaters Using Alternative Blowing Agents

Conference Proceeding by ASHRAE, 2000

A. Hunter Fanney, Ph.D. Member ASHRAE, Robert R. Zarr, P.E. Jareb D. Ketay-Paprocki

View all product details

Most Recent

Track It

Language:
    • Available Formats
    • Options
    • Availability
    • Priced From ( in USD )

Customers Who Bought This Also Bought

 

About This Item

 

Full Description

This paper presents the results of a study designed to quantify the performance of water heaters insulated with polyurethane foams using three different blowing agents-hydrochlorofluorocarbon R-141b, H 2 O/CO 2 , and hydrofluorocarbon R-245fa. The thermal conductivity of the foam was measured, as a function of mean temperature, using a guarded hot plate apparatus. Electric residential water heaters, insulated with the three polyurethane foams, were tested to deter-mine the influence of the blowing agent on the water heater's energy factor and overall heat loss area coefficient. A relationship between the overall heat loss area coefficient and energy factor was developed and compared to experimental results. An infrared imaging system revealed that areas surrounding the heating element access covers, the lower circumference of the water heater, and piping penetrations were significantly higher in temperature than the exterior surface of the water heater.

Also paper MN-00-15-1, in MN-00-15, Symposium on Ownership Costs and Test Results for New Residential Water Heating Systems

Units: Dual

 

Product Details

Published:
2000
Number of Pages:
12
File Size:
1 file , 650 KB
Product Code(s):
D-7288
Note:
This product is unavailable in Russia, Belarus