Alternative Air Conditioning Technologies: Underfloor Air Distribution (UFAD)

Alternative Air Conditioning Technologies: Underfloor Air Distribution (UFAD): Technology Focus

Introduction and Background Recent trends in today’s office environment make it increasingly more difficult for conventional centralized HVAC systems to satisfy the environmental preferences of individual office workers using the standardized approach of providing a single uniform thermal and ventilation environment. Since its original introduction in West Germany during the 1950s, the open pla...

Air Conditioning Check and Air Conditioning Service

FEASmILITY STUDY OF SOLAR ADSORPTION TECHNOLOGIES FOR AUTOMOBILE AIR-CONDITIONING

An adsorption system driven by solar heat or waste heat can help to eliminate the use of ozone depletion substances, such as chlorofluorocarbons (CFCs) and hydro-chlorofluorocarbons (HCFCs). In recent years, adsorption system has witnessed an increasing interest in many fields due to the fact that this system is quiet, long lasting, cheap to maintain and environmentally benign. Although adsorpt...

Fully Fresh Air Air-conditioning System Equipped with Double Heat Pipe Based Heat Recovery Technology

The using of double heat pipe based heat exchanger (HPHX) in a conventional fully fresh air air-conditioning (AC) system was examined in the present study. The fabricated HPHXs were tested under the actual conditions and the measured data were used to study the performance of the existing AC system (System A) and AC system equipped with the double HPHX (System B) for a yearly operation through ...

Thermodynamics of Air/Water-Cycle Air-Conditioning Systems