Chapter hvac engineering Fundamentals: Part 1 Introduction



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HVAC HANDBOOK

7.12
Summary
Central plants are the heart of the systems which produce heating
and cooling capacity for buildings and complexes. They range from
small to large, simple to complex. They involve a variety of inputs,
manipulations, and outputs, each suited to the needs and resources of
the specific project. Smaller plants should generally stay with simple
schemes and standard equipment, while large systems can drift to-
ward more sophisticated concepts and more tailored installations. Ec-
onomic evaluations should support design concepts, and long-term
ease of operation and maintenance should be established as a key
factor.
This chapter identifies plants for heating, cooling, and combinations
of both. There are many variations of the basic ideas offered. There
are additional plants related to compressed air, refrigeration, and wa-
ter treatments which have energy implications, but are left to another
discussion. The HVAC systems designer will recognize plants as po-
tential areas of specialty experience as assignments and interest allow.
References
1. ASHRAE Handbook,
2000 HVAC Systems and Equipment,
Chap. 7, ‘‘Cogeneration
Systems’’; Chap. 8, ‘‘Applied Heat Pump and Heat Recovery Systems’’; Chap. 10,
Design Procedures: Part 5
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