Seminar 19 -- Changes to Heat Gain Tables in the Handbook Commercial Load Calculations Chapter 18 PDF

Track: Fundamentals and Applications
Sponsor: 4.1 Load Calculation Data and Procedures, 5.10 Kitchen Ventilation
Chair: Jeff Stein, P.E., Member, Taylor Engineering, LLC, Alameda, CA
This session presents the results of ASHRAE research projects that updated the office equipment and kitchen appliance heat gain tables in the Fundamentals Handbook Chapter 18, Nonresidential Cooling and Heating Load Calculations. The office equipment heat gain project was research project RP-1742, Update to Measurements of Office Equipment Heat Gain Data. The kitchen appliance heat gain project was RP-1631, Countertop Commercial Appliance Emissions.

1. RP-1742 Update to Measurements of Office Equipment Heat Gain Data: Experimental Approach and Results Overview
Christian Bach, Ph.D., Associate Member, Oklahoma State University, Stillwater, OK
This seminar introduces the experimental approach and selected test sites used to update the heat gains and diversity factors for different office equipment in the ASHRAE Fundamentals handbook tables. The seminar gives an overview on the data logger's selection criteria for measurement and calibration purposes as well as the testing duration for different equipment. An overview of the experimental results for both, heat gains and diversity factors is also given. Transient data is shown and some typical and atypical findings are pointed out.

2. RP-1742 Update to Measurements of Office Equipment Heat Gain Data: Data Analysis and Parametric Studies
Omer Sarfraz, Student Member, Oklahoma State University, Stillwater, OK
This seminar gives an overview of methods used for the determination of recommended heat gains and diversity factors for different office equipment in the ASHRAE Fundamentals Handbook tables. In particular, the effects of a number of tested pieces of equipment as well as the interval duration for data reduction are investigated. Analysis on the effect of the different number of tested pieces of equipment and averaging interval on the diversity factor is also discussed. Recommendations for minimum equipment count for determining diversity factors as well as recommendations for future work are given.

3. RP-1631 Update to Kitchen Appliance Heat Gain Data
Rich Swierczyna, Associate Member, Fisher-Nickel, San Ramon, CA
Commercial kitchens and dishrooms house equipment that generate the most intensive concentrations of sensible and latent loads. This seminar presents the heat gain findings from RP1631 Countertop Commercial Appliance Emissions along with the updates to the appliance heat gain tables in the handbook.

Presented: June 26, 2017, 8:00-9:30 AM
Run Time: 90 min.

This is a zip file that consists of PowerPoint slides synchronized with the audio-recording of the speaker (recorded presentation), PDF files of the slides, and audio only (mp3) for each presentation.