The use of constant pressure (automatic) expansion valves as the metering device in vapor compression refrigeration cycles employed in air conditioning systems offer functional advantages which result in first cost and operating cost benefits to the manufacturers and users of air conditioning equipment. Operating performance is improved at typical application air temperature conditions and powe...

Most research in the field of indoor thermal environment control has been devoted to search for an appropriate on/off temperature air-conditioning while relatively ignoring energy-saving effect transition period length after turned off. We proposed a model alternate operation between natural ventilation and measure delay time compared energy consumption two cooling modes (continuous alternative...

In this study, mobile phones, wearable devices, temperature and human motion detectors are integrated as smart sensors for enabling smart air conditioning control. Smart sensors obtain feedback, especially occupants' information, from mobile phones and wearable devices placed on human body. The information can be used to adjust air conditioners in advance according to humans' intentions, in so-...

Exergy analysis emboldens in cases that all the inefficiencies and bottlenecks to improve energy systems are to be addressed. In this study, a novel vapor compression air dehumidifier integrated with an auxiliary heat exchanger in series arrangement with the main condenser in order to mitigate the reheat coil, and an extra mixing box to recover the ventilated air heat has been introduced. A com...

A survey of respiratory symptoms and housing environments using ATS-DLD questionnaires (published by the Environment Agency of Japan) and measurement of Total IgE in serum according to the PRIST method was carried out from June to July, 1984 among elementary school children (766) in Suginami Ward, Tokyo. The relationship between allergic histories or housing environments (types of heaters, hous...

Texas A&M University 11.

Heating and humidification of the respiratory air are the main functions of the nasal airways in addition to cleansing and olfaction. Optimal nasal air conditioning is mandatory for an ideal pulmonary gas exchange in order to avoid desiccation and adhesion of the alveolar capillary bed. The complex three-dimensional anatomical structure of the nose makes it impossible to perform detailed in viv...