Chapter 5: CASE STUDIES
Case study information is frequently requested, but seldom fully understood in terms of relating the conditions under which it was conducted to the actual results reported. In fact, the real need is for studies with populations that are of sufficient size to provide a statistically representative sample of actual field performance of heating or cooling systems as used in buildings as built. Unfortunately, the costs, politics of energy source, equipment involved, and proponents of the study make it almost impossible for the major consensus research-funding agencies and organizations to set up and conduct large-scale comparative heating or cooling system performance studies. One possible large-scale study approach would be a government-funded study of identical existing government buildings. Oversight would be provided by an ASHRAE committee composed of the relevant technical committee chairs and convened for the purpose of conducting a comparative operating analysis, the results of which would be incorporated in the ASHRAE Handbook and related standards.
Yet, there is considerable solid research that addresses specific research aspects of radiant heating and radiant system performance, capacity design, and human thermal comfort. The performance and design of radiant heating systems is not a secret or a mystery, but it is not incorporated into mainstream engineering system selection and design or familiar to most building contractors. The objective of this Handbook is to provide the information required to include radiant heating systems in all heating system selection analyses.
By reading this entire Handbook, the reader develops a comprehensive knowledge of the comparative...