leonardo energy solar desalination webinar #1 14 october 2010 solar desalination technologies dr. julian bianco plataforma...
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
2nd CSP Training series : solar desalination (1/2)
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2nd CSP Training series : solar desalination (1/2)

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* Solar desalination technologies.
* Multi-Effect Distillation with solar energy
* Double Effect Absorption Heat Pump use in solar MED desalination
* Hybrid solar-gas desalination systems
* Thermal storage to 24 h operation

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  • Let’s have a look thermal processes, the simplest unit is the single effect evaporator which is a tube bundle evaporator with condensing steam in the tube side and seawater spraied on the outer tube surface. The vapour produced in the effect is then condensed in a condenser and collected as a product.
  • The increase of efficiency by increasing the number of effects is limited by the maximum allowable brine temperature in the unit due to the risk of scale. Today, with antiscalant chemicals available, top brine temperature is limited to about 75ºC. With top brine temperature limited to 75ºC, it is difficult to increase the number of cells above 14.
  • 2nd CSP Training series : solar desalination (1/2)

    1. 1. leonardo energy solar desalination webinar #1 14 october 2010 solar desalination technologies dr. julian bianco plataforma solar de almeria julian.bianco@psa.ed ministerio de ciencia e innovacion ciemat centro de investigaciones energeticas medioanbientales y technologicas presentation progress number one full stop desalination fundamentals number two full stop low production solar desalination technologies number three full stop multi-effect distillation with solar energy number four full stop hybrid solar-gas med desalination systems number five full stop case study design solar desalination technologies leonard webinar comma fourteenth of october two thousand and ten ''desalination process desalination process thermal energy mechanic energy electric energy chemical energy evaporation crystallization filtration and evaporation evaporation filtration selective filtration exchange multi-stage flash distillation (msf) multi-effect distillation (mef) thermal vapor compression (tvc) solar distillation freezing hydrate formation membrane distillation mechanical vapor compression (mvc) reverse osmosis (ro) electrodialysis (ed) ionic exchange solar desalination technologies leonardo webinar, 14 october 2010'' thermal distillation parameters to measure energy efficiency of thermal distillation processes: gain output ratio (g.o.r): kg of distillate produced for every kg of steam supplied to the distillation unit performance ratio (pr) kg of distillate produce for every 2326 kj of thermal energy supplied to the distillation unit thank you very much for your attention distribution by process thermal membrans current current presentation progress 1. desalination fundamentals 2. low production solar desalination technologies 3. multi-effect distillation with solar energy 4. hybrid solar-gas med desalination systems 5. case study design ''solar stills advantages simple design affordable investment proven technology obstacles relatively low efficiency high ground area demand limited system capacity (100 l/d) avage production 3.261 m(2) day 1.2 m(3)m(2)year 1870:u.s. dept. of interior, office of saline water r&d report. manual on solar distrillation of saline water s.g. talbert, j.a. ebling and g.o.d. lol('' ''solar stills the efficiency of the solar still is low as a result of the loss of latent heat of condensation through the cover. even when the latent heat is reused (multi-effect stills) the perfomance is relatively low. daily production rate not larger than 3-5 l/m3 day large durable-type, glass-covered solar stills could produce water on a consistent, dependable basis for a cost between 0.8 and 1.1 $/m3 thermal inefficiencies can be reduced by separating these functions into different components humidification-dehumidification desalination solar desalination technologies leonardo webinar, 14 october 2010'' hdh desalination process heat storage condenser evaporator natural air convection is normally preferred as air flowrate has an insignificant effect on unit productivity water flowrate is important on unit performance thermal storage and a 24-h operation of the units is required to improve productivity solar desalination technologies leonardo 14 october ciemat membrane distillation membrane distillation system with internal heat recovery ''presentation progress 1. desalination fundamentals 2. low production solar desalination technologies 3. multi-effect distillation with solar energy 4. hybrid solar-gas med desalination systems 5. case study design solar desalination technologies leonardo webinar, 14 october 2010'' ''worldwide experiences med plant (18 effects) 120 m3/day solar collectors; evacuated tube useful absorption area 1862 m3 thermal storage: 300 m3 (water) performance ratio = 12.4 abu dhabi, uae'' ''plataforma solar std project the solar collector field consists of one-axis tracking parabollic trough collectors with a total aperture area of 2672m2, model acurex-3001. the daily thermal energy delivered by the collector field is about 6.5 mwh but the daily thermal energy requirement of the dasalination plant is less than 5 mwh for 24 hour daily operation solar desalination technologies ciemat'' ''plataforma solar std project the distillation plant installed at the psa is a forward-feed, vertically-stacked, multi-effect distillation unit with 14 effects. technical specification of the sol-14 desalination plant'' ''oil circuit, seawater, distilate, brine'' plataforma solar std project parabolic through solar connectors performance ration 12 - 14 solar desalination technologies leonardo webinar 14 october 2010 ciemat hot oil storage tank thermocompressor high pressure steam electricity generation system med plant low pressure steam high pressure steam brine distillate sea water inlet presentation progress. 1. desalination fundamentals 2. low production solar desalination technologies 3. multi-effect distillation with solar energy 4. hybrid solar-gas med desalination systems 5. case study design med operation: fossil mode ''med operation:hybrid mode solar energy propane solar dryer double-effect absorption heat pump gas boiler cpc solar collectors secondary water tank primary water tank med plant solar desalination technologies leonardo webinar, 14 october 2010'' ''cpc solar collector field the solar field is made up of 252 stationary solar collector (cpc ao sol 1.12x) with a total surface area of 500m2 arranged in four rows of 63 collectors. solar desalination technologies leonardo webinar, 14 october 2010 ciomot'' ''thermal storage tanks the thermal storage tank system is made up of two interconnected 12-m3-capacity water tanks. this storage colume is based on the response time required by the gas boiler and the deahp to reach nominal operating conditions solar desal in ation technologies leonardo webinar, 14 october 2010'' ''absorption heat pumps 150 kw 2kw 70kw 78kw solar desalination technologies leonardo webinar, 14 october 2010 ciemot'' libr-h2o thermodynamic cycle ''experimental results start date 2006/06/14 09:30:00 q_med q_solar q_deahp q_fossil power (kw) 250 200 150 100 50 0 5 10 15 20 25 30 35 elapsed time (hours) distillate (m3/h) day 1 day 2 3,5 3 2,5 2 1,5 1 solar desalination technologies leonardo webinar 14 october 2010 ciemal'' ''experimental results start date:2006/06/14 09:30:00 power (kw) elapsed time (hours) distillate (m3/h) solar desalination technologies leonardo webinar, 14 october 2010'' ''fossil-only mode distillate production and global thermal energy consumed by aquasol plant in fossyl-only mode specific thermal consumption:29.34kwh/m3 local time (almeria, spain) solar desalination technologies leonardo webinar, 14 october 2010 power (kw) distillate production (average value = 2.40m3/h med power consumption (average value = 148.23 kw) deahp power cosumption (average value = 70.41 kw) test date: 14.06.2006-15.06.2006 distillate production (m3/h)'' ''performance ratio with deahp {average value 22.06} performace ratio without deahp {avergae value 10.47} performance ratio of the aquasol plant infocall-only mode local time {almeric, spain}'' ''presentation progress 1. desalination fundamentals 2. low production solar desalination technologies 3. multi-effect distillation with solar energy 4. hybrid solar-gas med desalination systems 5. case study design solar desalination technologies leonardo webinar, 14 october 2010'' design of desalination plant tvc-med plant unit capacity 14.400 m day number of units 4 annual availability 95% overall annual production 19.972.800 gor = 11.3 number of effects 11 heat supply superheated steam at 330 and 4.56 bar location and parameters annual direct normal irradiation = 1990 kwh/m2 year ''design of desalination plant live steam enthalpy (330 c, 4.56 bar) = 3127. 56 kj/kg first effect temperature: 70 c saturated liquid water = 293.02 kj/kg (gor) = 11.3 unit capacity - 14.400 m3/day power consumption: -1.29k!h/m3 chemical pretreatment: antifoaming, antiscaling acid cleanings'' ''solar thermal med plant solar desalnation technologises leonard webinar, 14 october 2010'' thank you very much for your attention

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