... free heat source. A semispherical and chamber stepwise basin solar still with an inclined glass cover, with and without photovoltaic (PV)-powered electrical heaters as another power source, can increase the rate of evaporation of saline water, thus increasing the productivity of semispherical solar...

...J. Glembin; D. Eggert; G. Rockendorf; J. Scheuren Evaporation in solar thermal collectors normally takes place when the collector pump is not running—the so-called full stagnation. But it is possible that part of the heat transfer fluid evaporates inside a solar thermal collector field although...

...Tareq Abu Hamed; Jane H. Davidson; Mark Stolzenburg Hydrolysis of Zn is investigated as the second step in a Zn O ∕ Zn redox solar water splitting process. Zinc is evaporated and hydrolyzed with steam in a hot wall flow tubular reactor. The influence of the reactor temperature distribution...

...Dae Hyun Kim; Bryan M. Jenkins Recently, an open, liquid-film concentrator has been both theoretically and experimentally evaluated for increasing evaporation and concentration rates above those for simple solar evaporator basins ( Kim, D. H., Jenkins, B. M., Yore, M. W., and Kim, N. J., 2007...

...-state design values. Taking into account these results, a method is developed for calculating the required separation efficiency of the water-steam separator between evaporating and superheating sections of the solar field. For a field with individual phase separators arranged in each collector row...

... term use. In this work a new multistage evacuated solar desalination system was proposed and designed. The objective of this work is to increase the productivity and improve the low efficiency of the traditional solar desalination systems. The new system works by virtue of the higher evaporation rate...

...F. W. Yu; K. T. Chan This paper describes how direct evaporative coolers can be used to improve the energy efficiency of air-cooled chillers in various operating conditions and with different strategies for staging condenser fans. These coolers are installed in front of air-cooled condensers...

...S. Al-Kharabsheh; D. Yogi Goswami Theoretical analysis of a solar desalination system utilizing an innovative new concept, which uses low-grade solar heat, is presented. The system utilizes natural means of gravity and atmospheric pressure to create a vacuum, under which liquid can be evaporated...

...K. Gommed; G. Grossman, Faculty of Mechanical Engineering Technion,; F. Ziegler In earlier work, a novel open absorption cycle was proposed, capable of producing both cooling and dehumidification for air conditioning, utilizing low-grade heat. The system, referred to as DER (Dehumidifier-Evaporator...

...M. Liu A new variable water (VW) flow system for chilled water system application is presented. Design, operational, and control issues are discussed. Analytical models of pump power and evaporative temperature are developed. The VW systems consume considerably less pump and compressor energy than...

... refrigeration cycle might be increased or decreased with mass recovery process due to different working conditions. The advantage is that its COP is not sensitive to the variation of heat capacity of adsorber metal and condensing and evaporating temperature. The cycle with mass and heat recovery has...

... evaporation can be 3 to 15 times larger than the sensible heat flux under normal operating conditions. The wind speed and the inlet water temperature have a large influence on the energy absorption of the collector. The effects of the solar incident flux, the atmospheric humidity and temperature...