Study of Dynamic Sorption in Adsorption Refrigeration Cycle
نویسندگان
چکیده
This paper shows the characteristics of temperature and adsorbed (water vapor) mass rate distribution in adsorber unit which is key part to any adsorption refrigeration system. The profiles adsorption/desorption phases (Dynamic Sorption) are measured experimentally under operating conditions 90oC hot water temperature, 30oC cooling 35oC cycle time 40 min. Based on profiles, transfer equations for annulus adsorbent bed solved obtain velocity adsorbate concentration using non-equilibriummodel. relation between with investigated during process adsorption. practical cycles desorption were stated dependent variables obtained from experiment calculations.The results show that diminished after a period 20 maximum value vapor silica gel 0.12 kg water/kg (adsorption phase) minimum content into 0.04 (desorption producing dynamic sorption adsorbent.
منابع مشابه
Sorption Refrigeration Development
The Jet Propulsion Lthoratory (JPL) has been involved in cryogenic refrigeration development for the National Aeronautics and Space AdminisUation (NASA) since 1979. Witi the help of NASA, Southern California Gas Company, Ford Automotive, and Aerojet General, we have spun off Ma technology for cmnmerciai air conditioning since 1990. In all, JPL has fabricated and successfully tested the followin...
متن کاملExperimental Study of a Solar Adsorption Refrigeration Unit, Factorial Analysis
An experimental study was performed on an adsorption refrigeration unit powered by a solar energy and equipped with three different types of activated carbon (1: Coconut, 2: Palm seeds, 3: Charcoal). In this Study design, factorial analysis and optimization of a prototype unit were described. The activated carbon coupled with methanol was used as an adsorbent-adsorbate pairs. Experimental tests...
متن کاملPerformance Analysis of a Double-effect Adsorption Refrigeration Cycle with a Silica Gel/Water Working Pair
A numerical investigation of the double-effect adsorption refrigeration cycle is examined in this manuscript. The proposed cycle is based on the cascading adsorption cycle, where condensation heat that is produced in the top cycle is utilized as the driving heat source for the bottom cycle. The results show that the double-effect cycle produces a higher coefficient of performance (COP) as compa...
متن کاملTransient Characteristics of a Single-Effect Absorption Refrigeration Cycle
This paper deals with a lumped-parameter dynamic simulation of a single-effect LiBr-H2O absorption chiller. In many studies the thermodynamic properties of LiBr-H2O solution were taken from some approximate relations causing the results to be somewhat inaccurate. These relations were used to solve simultaneous differential equations involving the continuity of species constituting the LiBr-H2O ...
متن کاملExperimental investigation on the effect of phase change materils (PCM) in solar compression refrigeration cycle efficiency
Saving energy is one of the most important challenges of todaychr('39')s world. Reducing electrical energy consumption in compressed air systems is one of the essential requirements for designing these systems. When using domestic air conditioners (dual air conditioners) in very hot areas (Khuzestan) their performance decreases and electric current consumption increases. Therefore, the use of n...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ma?allat? al-handasat?
سال: 2023
ISSN: ['1726-4073', '2520-3339']
DOI: https://doi.org/10.31026/j.eng.2014.07.11