This paper gives some rules for the design of commercial kitchens concerning thermal comfort, heat exhaust, cooling systems, capture and containment of effluents .

An overview of the standards developed under the EU mandate to CEN is presented in this paper.Some information on the CEN standardisation work is given along with information on how to participate and where to retrieve the information.

The aim of this study was to develop a theoretical method to calculate the effectiveness of Indirect Evaporative Cooling (IEC) with condensation from primary airflow.For this study, a set of analytical equations has been developed , to calculate precisely the overall performance through a specified procedure for the complicated IEC process.The theoretical results have been validated by the performance of an experimental test

In this paper, a method for adjusting refrigerant charge is presented. it uses a charge correction equation that requires data for two operating points for parameter tuning. The two-point charge tuning method leads to much better prediction for a wide range of operating conditions and regrigerant charge levels. That method has been tested for multiple units and worked well..

A robust Fault Detection and Diagnosis (FDD) strategy for centrifugal chillers is presented in this paper along with its validation using both laboratory data from ASHRAE RP-1043 and field data from a centrifugal chiller in a real building.

A new method developed for automatic detection of refrigerant leakage in distributed refrigeration system, is presented in this paper. A supermarket store in Colorado was used as a prototype for the design of the system model and the testing and evaluating of the detection and diagnostic technique. The developed techniqueis able to detect a leakagewhen the refrigeration system loses more than 1% of the initial charge.

To vent or not to vent attics or roofs is a design and construction choice, not a requirement determined by physics or by building codes. In this paper the advantages and drawbacks of venting or unventing are presented :Vented attic/roofs designs work best with airtight ceiling interfaces and when air handlers and ductwork are not within attic spaces.Unvented attic/roofs designs have the advantage of providing conditioned spaces for air handlers and ductwork. But they require different approaches in different climate locations.

There are notable changes in the 2006 edition of the Guidelines for design and construction of hospital and health care facilities. Those changes are the result of a multidisciplinary review of the ventilation requirements and the ventilation recommendations are based on definitive scientific basis.

In this paper, numerical simulations were performed to investigate the dispersion mechanisms of expiratory aerosols in an enclosure wtih two different types of of ventilation airflow patterns : unidirectional downward and celing return flow. Experimental results with distilled water as working fluid were compared with some of the numerical results : they were performed in a unidirectional downward flow with the geometry identical to the numerical one. A reasonable agreement was shown.

For that study, indoor/outdoor measurements have been carried out in two residential houses in Oslo. The main objective is to determine the physico-chemical properties of indoor and outdoor particulate matter (PM) associated with actual human exposure. The parameters that influence that relationship of indoor to outdoor concentration of particulate matter in residential houses are discussed in this paper.