The Contingencies of Transnational Air-conditioning Histories

Air Conditioning Check and Air Conditioning Service

Architectural repercussions of the air conditioning installations

This work aims to present an analysis of architectural repercussions involved in choosing a certain climatic system for an office block. The intention is to unite techniques and the building itself. Independently of the bioclimatic design criteria for office work, these buildings require active technical systems for their air conditioning. We should only consider the air conditioning option tha...

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 ...

Optimization of Vehicle Air Conditioning Systems Using Transient Air Conditioning Performance Analysis

The National Renewable Energy Laboratory (NREL) has developed a transient air conditioning (A/C) system model using SINDA/FLUINT analysis software. It captures all the relevant physics of transient A/C system performance, including two-phase flow effects in the evaporator and condenser, system mass effects, air side heat transfer on the condenser/evaporator, vehicle speed effects, temperature-d...

Sustainability of Automobile Air- Conditioning System Using Refrigerant R1234yf Instead of R134a

Air conditioning refrigerant R134a has value of global warming potential (GWP) 1300, which is much higher than MAC Directive (GWP below 150) passed in July 2006. This prompted a search for alternative refrigerant with GWP value less than 150. R1234yf is a new refrigerant which has lower GWP value of 4. Effect of blower speed has been compared and flammability issue of R1234yf has been addre...