- Author
-
Park, C.
|
Kelly, G. E.
- Title
- Study on the Performance of Residential Boilers for Space and Domestic Hot Water Heating.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Report
-
NISTIR 89-4104,
June 1989,
102 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
boilers
|
heating
|
computer simulation
|
domestic hot water heating
|
integrated appliance
|
performance test procedure
|
residential boiler
|
space heating
- Abstract
- A residential boiler for space heating and domestic hot water heating was studied by conducting laboratory tests and computer simulations. A clam-shell, wet-base, oil-fired, residential boiler with a tankless coil for heating domestic water was selected for this research project. The purpose of this study was to develop a method for evaluating the performance of an integrated space and water heating appliance. Based upon laboratory tests, a computer model was developed and used with the HVACSIM. building system simulation program to simulate the operation of the integrated appliance. The model was verified for heat-up, cool-down, cyclic and standby modes of operation, along with various domestic hot water draw cycles. Using the verified model, computer simulations were carried out for both summer and winter operations of the appliance. As a result of these simulation studies, a simple method for determining the combined, seasonal efficiency of Type I appliance, whose primary design function is space heating and secondary function is domestic water heating, is presented.