It is well known that with combined heat and power (cogeneration) systems one can reach 80% to 90% joint energy production efficiency, while it is only 30% to 40% for separated electrical power and 80% to 90% for heating-only systems. A basic requirement is that the ratio between the two energy forms must be within certain limits.
Average electrical power consumption varies within a 30% to 50% wide range, while it does within 200% to 300% —in the temperate zone—for heating, during a full year of operation. Summer—low heating load—period is specially critical for load balance. This balance and the total efficiency can be improved by utilizing absorption cooling. Cooling is otherwise a requirement for summer operation of buildings.
Basic considerations and case studies are discussed in the paper.
Units: SI
Citation: Symposium, ASHRAE Transactions, vol. 108, pt. 2
Product Details
- Published:
- 2002
- Number of Pages:
- 6
- File Size:
- 1 file , 5.4 MB
- Product Code(s):
- D-8962
