Part I: Calculate the heat loss for the residence in Appendix D on a room-by-room basis and the approximating heating fuel cost for an oiled fired high efficiency pulse furnace which uses No. 2 heating oil. Assume the residence will be built at Syracuse, NY. Use ceiling height of 8’ and standard ADA approved hallway width. Use the heating load analysis worksheet on the page provided and submit with your calculations. Calculate the annual heat loss (in U.S. units) through the following wall assemblies using U-factors from Table 2.4 and 2.9 (in Chapter 2) and the annual heating degree days over a typical heating season at the geographical location indicated. Use Table 2.10 to estimate the U-factors for windows and doors used.
EXTRA CREDIT:
Part II: Design a hydronic series loop system, two zones, for the residence in Appendix D, based on the heat loss calculations for the geographic location indicated. Follow example 9.4 BASIC DISTRIBUTION SYSTEM DESIGN on page 323 for your calculations. Draw your design layout on the plan, and use the following fittings to determine your equivalent fittings.
NOTE: Please use notes from Chapter 2 and 4 from the Mechanical & Electrical Systems in Architecture, Engineering, and Construction, 5th Edition, Joseph B. Wujek & Frank R. Dagastino. Use the tables, charts, and procedures suggested in the notes AND on the chapters indicated. For designing the hydronic heating system, Follow example 9.4 BASIC DISTRIBUTION SYSTEM DESIGN on page 323 covered in class.
***ALL HAND CALCULATIONS MUST BE SUBMITTED ON ENGINEERING PAPER.***
***Use the heating load analysis worksheet on page 100 and submit with your calculations.***
General Procedure for Heat Load Calculations
The process of estimating the design heating load, follows the general procedure below:
Determine the outside design temperature.
Select the inside temperature to be maintained in the heated space during design conditions.
Estimate air temperatures in adjacent unheated spaces.
Determine the overall coefficient of heat transfer (U-factor) for all construction assemblies that are between heated spaces and outside air or the heated space and unheated space.
Calculate the net area of all construction assemblies surrounding the heated spaces and outside or the heated space and an unheated space. Use inside dimensions.
Compute heat transmission losses for appropriate construction assemblies by using methods previously described.
Compute losses associated with infiltration.
If mechanical ventilation is used to maintain indoor air quality (very tightly sealed structures), determine the rate of air exchange and calculate ventilation loads based upon design conditions.
Sum transmission and infiltration losses (and ventilation losses). This represents the design heating load of the space at design conditions (DLS).
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