Accuracy requirements and limitations for low velocity measurements.

Recommendations for the characteristics of anemometers that will ensure accurate velocity measurements are specified in the present standards. Recent research shows, however, that the requirements in the standards are based on incorrect assumptions and are insufficient to perform draught discomfort assessment that meets the accuracy requirements for human comfort specified in the indoor climate standards.

Retrofit demonstration in Brazilian commercial and public buildings.

In order to help the development of energy efficiency building standard in Brazil , to demonstrate state of art technologies and to encourage the use of hourly energy simulation tools the National Energy Conservation Program (PROCEL) has started the "6 Cities Project". The project is being developed in six cities around the country. For this project a standard methodology was developed and applied. The methodology consists of a survey in the local utilities to establish the highest energy consumers in the commercial and public sector.

Indoor air quality standards of performance applications guide.

This paper discusses the development and application of standards of performance (SOPs) for HVAC&R equipment, plumbing systems, and building envelope systems in relation to maintaining acceptable indoor air quality (IAQ) in buildings. The utilization of the SOP procedure, developed in ASHRAE Research Project 853, will aid in the proper operation of systems and verify that acceptable building IAQ levels are obtained.

Application of CO2-based demand-controlled ventilation using ASHRAE standard 62: optimising energy use and ventilation.

CO2-based demand-controlled ventilation (DCV), when properly applied in spaces where occupancies vary below design occupancy, can reduce unnecessary over ventilation while implementing target per-person ventilation rates.

Procedures for outdoor measurement of sound pressure level. American National Standard.

This American National Standard describes procedures for the measurement of sound pressure levels in the outdoor environment, considering the effects of the ground, the effects of refraction due to wind and temperature gradients, and the effects due to turbulence. This standard is focused on measurement of sound pressure levels produced by specific sources outdoors. The measured sound pressure levels can be used to calculate sound pressure levels at other distances from the source or to extrapolate to other environmental conditions or to assess compliance with regulation.

Thermal insulation - determination of building airtightness - fan pressurization method. ISO 9972.

The fan pressurization method produces a result that characterizes the airtightness of the building envelope or parts thereof.

Assessment of Indoor Air Quality and ASHRAE Standard 62

Today, laws and regulations play a major role in just about everything we do. The declining quality of the air in our buildings is causing movement towards regulations relating to how buildings should be designed and operated. It is important that designers and operators are aware of all current design and operating standards. ASHRAE Standard 62, "Ventilation for Acceptable Indoor Air Quality" developed in l 989 and now under revision, has created new challenges for designers and engineers.