... Catholic University of Minas Gerais , Belo Horizonte, Minas Gerais, Brazil . [2] Pulido-Calvo , I. , Gutiérrez-Estrada , C. J. , and Corbacho , M. J. , 2008 , “ Pipe Size Selection of Water Distribution Systems of Fishfarms ,” Aquacultural Eng. , 39 , pp. 43 – 52 . 10.1016/j.aquaeng...

...U. C. Arunachala; M. Siddhartha Bhatt; L. K. Sreepathi Scale formation in risers and header of direct solar hot water systems is a problem in places where hard water is being used. In this paper, the effect of scaling on energy efficiency indices such as instantaneous efficiency, mass flow rate...

... relatively low efficiency and outlet temperatures. The present study theoretically investigates the feasibility of using a nonconcentrating direct absorption solar collector (DAC) and compares its performance with that of a typical flat-plate collector. Here a nanofluid—a mixture of water and aluminum...

...B. Zheng; M. Liu There is no common agreement on the use of balance valves in the most popular variable water flow systems. A comprehensive theoretical analysis has been conducted to investigate the impacts of balance valves on initial cost, pump operation power, and system control performance...

...Patricia Sanft; Lorraine F. Francis; Jane H. Davidson The accumulation of calcium carbonate (referred to as scale) on the surface of cross-linked polyethylene and polypropylene random copolymer tubes is compared to that on copper. Water with total calcium and carbonate concentration of 3 × 10 − 3 M...

...Yongzhong Jia; T. Agami Reddy Capacity control in most commercial centrifugal chillers is achieved by inlet guide vanes which are activated by the leaving chilled water temperature sensor. Due to mechanical reasons, vane control is done discretely, and not continuously. The control module compares...

...Wen-Shing Lee; Bo-Ren Chen; Sih-Li Chen This article experimentally studies the thermal performance of latent heat storage in a two-phase thermosyphon solar water heater, which utilizes the superior heat transfer characteristics of boiling and condensation, and eliminates drawbacks found...

...J. W. McMenamy; K. O. Homan Electric resistance water heaters are relatively simple and are therefore one of the most common water heating configurations. Due to constraints on the allowable instantaneous electrical power draw, most electric water heating systems incorporate a sizable thermal...

... , A. , and Longo , G. A. , 1999 , “ Chemical Dehumidification by Liquid Desiccant: Theory and Experiment ,” Int. J. Refrig. , 22 , pp. 334 – 347 . Gommed, K., Grossman, G., and Ziegler, F., 2002, “Experimental Investigation of LiCl Water Open Absorption System for Cooling and Dehumidification,” Proc...

...Shaoguang Lu; D. Yogi Goswami A novel combined power/refrigeration thermodynamic cycle is optimized for thermal performance in this paper. The cycle uses ammonia-water binary mixture as a working fluid and can be driven by various heat sources, such as solar, geothermal, and low temperature waste...

...Afif Akel Hasan; D. Y. Goswami Exergy thermodynamics is employed to analyze a binary ammonia water mixture thermodynamic cycle that produces both power and refrigeration. The analysis includes exergy destruction for each component in the cycle as well as the first law and exergy efficiencies...

...J. J. Rizza, Mem. ASME This paper presents an analysis of a cold thermal energy storage (TES) system operating in series with an R-123 chiller. A lithium bromide/water LiBr / H 2 O solution is used both as a refrigerant and as a cold thermal storage material. The refrigerant, liquid water...

...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...

...Edward A. Fletcher water electrolysis hydrogen hydrogen economy sodium compounds solubility In the paper “Some Considerations on the Electrolysis of Water from Sodium Hydroxide Solutions,” by Edward A. Fletcher cited above, there is a typographical error on the bottom of page 144...

... by the ASME Solar Energy Division, Jul. 2000; final revision, Dec. 2000. Associate Editor: D. M. Blake. 01 Jul 2000 01 Dec 2000 water electrolysis hydrogen hydrogen economy sodium compounds solubility In previous papers 1 2 , we introduced the notion of using minimal voltage...